JP2000011105A - Wireless card system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an efficient wireless card system for facilitating a countermeasure to the data transfer at plural transmitting speeds or the data transfer in a short distance and a long distance by one card. SOLUTION: This wireless card system is provided with a transmission and reception system for operating data transfer from a reader/writer 2 to a card 1 and data transfer from the card 1 to the reader/writer 2 on a microwave band, and a transmission and reception system for operating both the data transfer on a short band. Both the data acquisition from the card 1 and the data storing into the card 1 is operated in non-contact, and the supply of a driving power to the card 1 is operated in non-contact from a writer 3 to the card 1 by using a short wave band. Only while the driving power is supplied from the writer 3 to the card 1, the data transfer is operated by those two transmission and reception systems.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wireless card system for supplying driving power from a writer to a card in a non-contact manner and for transmitting data between a reader / writer and the card in a non-contact manner. .

[0002]

2. Description of the Related Art In a conventional wireless card system in which driving power is wirelessly supplied to a card in a non-contact manner, a single frequency band (short wave, medium wave, or micro wave) is provided for one data transmission system. Data was transmitted and received using the radio waves of FIG. 34 shows, for example, Japanese Unexamined Patent Application Publication No.
FIG. 1 is a block diagram showing such a conventional wireless card system disclosed in Japanese Patent No. 40128, in which power and data are transmitted using short-wave radio waves. In the figure, 1 is a card, 2 is a reader / writer, and 3 is a writer.

[0003] Reference numeral 11 denotes a power supply circuit in the writer 3 for generating power to be supplied to the card 1;
Writer 3 that modulates the generated power and outputs a power signal
, A power signal transmitting antenna in the writer 3 for transmitting the power signal, 14 a power signal receiving antenna in the card 1 for receiving the power signal,
Reference numeral 15 denotes a power supply circuit that rectifies a power signal received by the antenna 14 and charges a secondary battery 16 described later. Reference numeral 16 denotes a secondary battery that supplies power for driving the card 1.

Reference numeral 17 denotes a communication interface between the reader / writer 2 and the host device, 18 denotes a processor in the reader / writer 2, 19 denotes a memory in the reader / writer 2, and 20 modulates a signal transmitted from the reader / writer 2 to the card 1. In the reader / writer 2, a demodulator 21 in the reader / writer 2, an RF circuit 22 in the reader / writer 2, an antenna 23 in the reader / writer 2 for data transmission / reception,
24 is an antenna in the card 1 and 25 is its antenna 24
Demodulator in card 1 for demodulating the received signal received by
Reference numeral 6 denotes a modulator in the card 1 for modulating a signal transmitted from the card 1, reference numeral 27 denotes a processor in the card 1, and reference numeral 28 denotes a memory in the card 1.

Next, the operation will be described. In the wireless card system shown in FIG. 34, the power supply circuit 11 in the writer 3 generates power to be supplied to the card 1 and outputs it to the power modulator 12. The power modulator 12 modulates the power generated by the power supply circuit 11 in the writer 3 and outputs it to the power signal transmitting antenna 13 in the writer 3 as a short-wave band power signal. Antenna 13 for transmitting power signal
Transmits the power signal modulated by the power modulator 12 to the card 1. The power signal receiving antenna 14 in the card 1 receives the power signal transmitted from the writer 3 and outputs the power signal to the power supply circuit 15. The power supply circuit 15 rectifies the power signal and charges the secondary battery 16. The electric power charged in the secondary battery 16 is stored in the antenna 24, demodulator 25, modulator 26, processor 27, memory 28 in the card 1.
Drive power.

[0006] The communication interface 17, which is an interface with a host device, transmits a 10-byte instruction code "A" at a transmission rate of 200 Kb / s (b / s; bits / second) to a processor in the reader / writer 2. 18 is output.
The processor 18 in the reader / writer 2 outputs the received instruction code “A” to the modulator 20. The modulator 20 modulates the instruction code “A” and outputs the modulated signal to the RF circuit 22 as a 10 MHz modulated signal. The RF circuit 22 has its 10M
It amplifies the modulation signal of Hz and outputs it to the antenna 23 in the reader / writer 2. The antenna 23 has its amplified 10 MH
The modulated signal of z is transmitted as a transmission signal from the reader / writer 2 to the card 1 to the card 1 at a distance of about 10 cm from the reader / writer 2 as airwaves in the air.

[0007] When the antenna 24 in the card 1 receives a 10 MHz radio wave transmitted from the antenna 23 in the reader / writer 2, it converts it to a 10 MHz reception signal and outputs it to the demodulator 25. Demodulator 25 has its 10 MHz
Is detected, demodulated to the code of the command code “A”, and output to the processor 27 in the card 1. When the processor 27 in the card 1 reads the instruction code "A", it reads the ID number "B" from a predetermined address in the memory 28 in the card 1 according to the instruction.

The processor 27 in the card 1 further stores the read ID number “B” (10 bytes) in 200K
The signal is output to the modulator 26 at a transmission rate of b / s. The modulator 26 in the card 1 modulates the 10-byte ID number “B” output from the processor 27 and outputs the modulated signal to the antenna 24 in the card 1 as a 10 MHz modulated signal. The antenna 24 in the card 1 transmits the modulated signal of 10 MHz to the card 1
From the card 1 to the reader / writer 2
Is transmitted as airwaves to the reader / writer 2 10 cm away from the air.

When the antenna 23 in the reader / writer 2 receives the 10 MHz radio wave transmitted from the antenna 24 in the card 1, it converts it into a 10 MHz reception signal and outputs it to the RF circuit 22. The RF circuit 22 detects the received signal and sends it to the demodulator 21. The demodulator 21 demodulates the received signal to an ID number “B” and outputs it to the processor 18 in the reader / writer 2. Processor 18 in reader / writer 2
Reads the ID number “B” sent from the demodulator 21 and checks whether or not the ID number is permitted by the communication interface 17 by referring to the memory 19 in the reader / writer 2. When there is a match number as a result of reference,
The matching code is output to the communication interface 17. If they do not match, the mismatch code is sent to the communication interface 17.
Output to

Here, the wireless card system requires a microwave band of 2 to 5 GHz when used for applications requiring high-speed data transmission of 2 Mb / s. However, the modulator 2 in the reader / writer 2
0, demodulator 21, RF circuit 22, and antenna 23
Since the antenna 24, the demodulator 25, and the modulator 26 in the card 1 correspond to only the short-wave band, 2 Mb /
s cannot be used for applications that require high-speed data transmission.

[0011] In addition, as a document which has a description related to such a conventional wireless card system, there is also a special document in which a microwave is used as a switch signal from a reader / writer and a medium wave is used for data communication. Kaihei 8-96
No. 091, Japanese Patent Application Laid-Open No. Hei 8-44831, in which a power source of a card is obtained from a secondary battery and remote communication using high frequency and near-field communication using electromagnetic coupling are performed, power is supplied to the card in a non-contact manner, and data transmission and reception are performed in one. There are Japanese Patent Application Laid-Open Nos. 9-1968 and 9-135189 which use frequencies.

[0012]

Since the conventional wireless card system is configured as described above, a single frequency band (short wave, medium wave, or Data transmission / reception is performed using microwave (radio waves), and the transmission speed range of data transmission / reception to / from one card 1 is limited. There has been a problem that data transmission / reception cannot be performed at a transmission rate and cannot be used for a plurality of purposes of transmitting / receiving at different transmission rates. In addition, since there is an appropriate transmission / reception distance for each frequency band, it cannot be used for data transmission / reception of one card 1 at a plurality of distances, for example, a long distance of 1 m and a short distance of 10 cm. There was also a problem of lacking functionality.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-described problems, and has been made so that one card can transmit and receive data at a plurality of transmission speeds. An object of the present invention is to provide a wireless card system which is more convenient for a single card by making the card capable of transmitting and receiving data at a short distance and a long distance.

[0014]

SUMMARY OF THE INVENTION A wireless card system according to the present invention comprises: a transmission / reception system for performing data transmission from a reader / writer to a card and data transmission from a card to a reader / writer in a microwave band; Equipped with two transmission / reception systems for transmitting data to the card and transmitting data from the card to the reader / writer in the short-wave band, acquiring data stored in the card and transmitting data to the card. The storage is performed in a non-contact manner, and the drive power is supplied to the card in a non-contact manner using a short wave band from the writer to the card. Data is transmitted and received by a system data transmission system.

A wireless card system according to the present invention includes a data transmission system for transmitting data from a reader / writer to a card in a microwave band and transmitting data from a card to a reader / writer in a short wave band and storing the data in a card. Contactless acquisition of stored data and storage of data in the card, and supply of drive power to the card,
The data is transmitted from the writer to the card in a non-contact manner using a short wave band, and data is transmitted and received by the data transmission system only during a period in which driving power is supplied from the writer to the card.

A wireless card system according to the present invention includes a data transmission / reception system for transmitting data from a reader / writer to a card in a short-wave band and transmitting data from the card to the reader / writer in a microwave band, and storing the data in a card. The non-contact acquisition of the data and the storage of the data in the card are performed in a non-contact manner, and the supply of the driving power to the card is performed in a non-contact manner from the writer to the card using the short wave band, and the writer is connected to the card by the writer. Data is transmitted and received by the data transmission system only during a period in which the driving power is supplied.

[0017] A wireless card system according to the present invention comprises: a transmission / reception system for performing data transmission from a reader / writer to a card and data transmission from a card to a reader / writer in a short-wave band; and a data transmission / reception system from a reader / writer to a card. The system is equipped with two transmission / reception systems for transmitting data from the PC to the reader / writer, both of which are performed in the microwave band, and performs non-contact acquisition of data stored in the card and storage of data in the card. At the same time, the supply of drive power to the card is performed from the writer to the card in a non-contact manner using the short wave band and the microwave band, and only during the period in which drive power is supplied to the card from the writer, the above two systems are used. The transmission and reception of data by the data transmission system are performed.

In the wireless card system according to the present invention, data is transmitted and received by the data transmission system using the short wave band only during a period in which driving power is supplied from the writer to the card using the short wave band, Data is transmitted and received by a data transmission system using a microwave band only during a period in which driving power is supplied from a writer to a card using a microwave band.

In the wireless card system according to the present invention, by having a selection switch in the card, a data transmission system for transmitting and receiving data using the microwave band and a data transmission system for transmitting and receiving data using the short wave band are separated. It is like that.

In the wireless card system according to the present invention, it is preferable that the reader / writer reads switch information of a selection switch set in the card in advance and performs data transmission / reception based on the information in a short-wave band data transmission system. Whether to perform in a microwave band data transmission system is determined.

The wireless card system according to the present invention includes a detector for detecting the presence or absence of a card based on whether or not the card has entered a range in which data can be transmitted and received. In this case, drive power is supplied thereto.

A wireless card system according to the present invention includes a control device, controls a plurality of reader / writers and a plurality of writers based on information read from the plurality of reader / writers, and outputs information obtained thereby to a display device. It is intended to be displayed.

In the wireless card system according to the present invention, the control device that has read the application software includes:
Whether data transmission / reception is performed using a short-wave band data transmission system or a microwave band data transmission system is determined based on the read information.

[0024]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below. Embodiment 1 FIG. FIG. 1 is a block diagram showing a wireless card system according to Embodiment 1 of the present invention. In the figure, reference numeral 1 denotes a card storing data, 2 denotes a reader / writer for acquiring data stored in the card 1 and storing data in the card 1 by wireless without contact, and 3 denotes a reader / writer. This is a writer that wirelessly supplies drive power to the card 1 by using a short wave band. These are the parts corresponding to those in the related art shown with the same reference numerals in FIG.

Reference numeral 11 denotes a power supply circuit (first driving power supply system) in the writer 3 for generating power to be supplied to the card 1, and 12 modulates the power generated by the power supply circuit 11. A short-wave power modulator (first drive power supply system) in the writer 3 that outputs a short-wave band power signal.
Reference numeral 13 denotes a power signal transmitting antenna (first driving power supply system) in the writer 3 for transmitting the power signal output from the short-wave power modulator 12 to the card 1. Reference numeral 14 denotes a power signal receiving antenna (first antenna) in the card 1 for receiving the short-wave band power signal transmitted from the writer 3.
And 15 is a short-wave power supply circuit (first driving power supply system) for rectifying a short-wave band power signal received by the antenna 14 and supplying power for driving the card 1. ).

The power supply circuit 11, short-wave power modulator 12, power signal transmitting antenna 13, power signal receiving antenna 14, and short-wave power circuit 15 are also given the same reference numerals in FIG. These components correspond to those of the related art described above, and form a driving power supply system for supplying the driving power of the card 1 from the writer 3 to the card 1 in the short-wave band. The drive power supply in the card 1 is directly performed by the short-wave power supply circuit 15, and the secondary battery 16 is not used. The wireless card system according to the first embodiment is shown in FIG. It is different from the conventional one.

Reference numeral 17 denotes a communication interface for interfacing between the reader / writer 2 and the host device. 18
Is a reader / writer that determines whether the command code from the communication interface 17 is transmitted / received in the short-wave band or the microwave band, and outputs data to the short-wave modulator 31 or the microwave modulator 35 described later. Reference numeral 19 denotes a memory in the reader / writer 2 connected to the processor 18 in the reader / writer 2. 27 reads an ID number, a personal information code, and the like from a memory 28 in the card 1 described below in accordance with the above-mentioned command, and reads the read information from a modulator 40 or a modulator 43 described later.
Is a processor in the card 1, which is connected to the processor 27 in the card 1 and stores the above-mentioned ID number, personal information code, and the like. Note that these communication interfaces 17,
A processor 18 and a memory 19 in the reader / writer 2,
The processor 27 and the memory 28 in the card 1 are also shown in FIG.
4 are the parts corresponding to those in the related art shown with the same reference numerals.

Numeral 31 denotes a card 1 from the reader / writer 2
The modulator for short-wave (the data transmission system) in the reader / writer 2, which modulates a code to be transmitted to a signal in a short-wave band,
Reference numeral 32 denotes a short-wave demodulator (data transmission system) in the reader / writer that demodulates a short-wave band received signal received by the short-wave transmission / reception antenna 34 in the reader / writer 2 described later into data. Reference numeral 33 denotes a short-wave RF circuit (data transmission system) in the reader / writer 2 to which the short-wave modulator 31 and the short-wave demodulator 32 are connected.
3 is an antenna (data transmission system) for transmitting / receiving short-wave signals in the reader / writer 2 for transmitting / receiving short-wave signals.

Reference numeral 35 denotes the above-described microwave modulator (data transmission system) in the reader / writer 2, which modulates data transmitted from the reader / writer 2 to the card 1 into a microwave band signal.
Numeral 36 denotes a microwave demodulator (data transmission system) in the reader / writer 2 for demodulating a microwave band reception signal received by a microwave transmitting / receiving antenna 38 in the reader / writer 2 described later into data. . 37 is a microwave RF circuit (data transmission system) in the reader / writer 2 to which the microwave modulator 35 and the microwave demodulator 36 are connected, and 38 is the microwave RF circuit 3
7 is a microwave transmission / reception antenna (data transmission system) in the reader / writer 2 for transmitting and receiving microwave band signals.

Reference numeral 39 denotes a short-wave transmission / reception antenna (data transmission system) in the card 1 for transmitting / receiving a short-wave band signal to / from the short-wave transmission / reception antenna 34 in the reader / writer 2, and reference numeral 40 denotes a card 1 The modulator for short-wave (data transmission system) 41 in the card 1 for modulating a code transmitted from the to the reader / writer 2 into a short-wave transmission signal. A short wave demodulator (data transmission system) in the card 1 for demodulating a received signal into data.

Reference numeral 42 denotes a microwave transmission / reception antenna (data transmission system) in the card 1 for transmitting / receiving a microwave band signal to / from the microwave transmission / reception antenna 38 in the reader / writer 2. Is a modulator for microwaves (data transmission system) in the card 1 for modulating data transmitted from the card 1 to the reader / writer 2 into a transmission signal in the microwave band. Is a microwave demodulator (data transmission system) in the card 1 for demodulating a microwave band received signal received by the card 1 into data.

The short-wave modulator 3 in the reader / writer 2
1, a short wave demodulator 32, a short wave RF circuit 33, and a short wave transmitting / receiving antenna 34, and a short wave transmitting / receiving antenna 39, a short wave modulator 40, and a short wave demodulator 41 in the card 1. , Card 1 from reader / writer 2
A first data transmission system for performing data transmission to the card 1 and data transmission from the card 1 to the reader / writer 2 using a short wave band is formed, and the microwave modulator 3 in the reader / writer 2 is formed.
5. Microwave demodulator 36, microwave RF circuit 3
7, a microwave transmitting / receiving antenna 38, a microwave transmitting / receiving antenna 42, a microwave modulator 43, and a microwave demodulator 44 in the card 1 from the reader / writer 2 to the card 1. And a second data transmission system for transmitting data from the card 1 to the reader / writer 2 using a microwave band.

Next, the operation will be described. Here, FIG.
FIG. 3 is an explanatory diagram showing a signal flow in the wireless card system according to the first embodiment of the present invention. The operation will be described below with reference to FIG. FIG.
, The power supply circuit 11 in the writer 3
, And outputs it to the short-wave power modulator 12 in the writer 3. The short-wave power modulator 12 modulates the power generated by the power supply circuit 11 and generates a short-wave power signal as an antenna 1 for transmitting a power signal in the writer 3.
Output to 3. The power signal transmitting antenna 13 transmits the power signal modulated by the short-wave power modulator 12 to the card 1. The power signal receiving antenna 14 in the card 1 receives the power signal transmitted from the writer 3 by, for example, an electromagnetic coupling method, and outputs it to the short-wave power supply circuit 15 in the card 1. The short-wave power supply circuit 15 rectifies the power signal input from the power signal receiving antenna 14 and
9, modulator 40, demodulator 41, antenna 42, modulator 4
3, supply driving power to the demodulator 44, the processor 27, and the memory 28.

On the other hand, while the writer 3 is transmitting the power generated by the power supply circuit 11 to the card 1 as a power signal, the communication interface 17 outputs the ID number “B” of the card 1.
A 10-byte instruction code "A" for checking
Output to the processor 18 in the reader / writer 2. The processor 18 in the reader / writer 2 receiving the instruction code “A” from the communication interface 17 transmits the instruction code “A” (1
0 bytes) at a transmission rate of 200 Kb / s to the short-wave modulator 31 in the reader / writer 2. Shortwave modulator 31
Modulates this command code "A" and outputs it to the short-wave RF circuit 33 in the reader / writer 2 as a 10-MHz modulated signal. The short-wave RF circuit 33 amplifies the modulated signal from the short-wave modulator 31 and outputs the amplified signal to the short-wave transmitting / receiving antenna 34 in the reader / writer 2. The short-wave transmitting / receiving antenna 34 is a 10M RF amplified by the short-wave RF circuit 33.
A modulation signal of 1 Hz is transmitted as a transmission signal from the reader / writer 2 to the card 1 to the card 1 at a distance of about 10 cm from the reader / writer 2 as airwaves in the air. In addition,
The transmission and reception of data between the reader / writer 2 and the card 1 is performed only during a period in which power is supplied from the writer 3 to the card 1.

The antenna 39 for transmitting and receiving short waves in the card 1
Receives the 10 MHz radio wave transmitted from the short wave transmitting / receiving antenna 34 in the reader / writer 2,
The signal is converted into a 0 MHz reception signal and output to the short wave demodulator 41 in the card 1. The short-wave demodulator 41 detects a 10-MHz reception signal received from the short-wave transmission / reception antenna 39, demodulates the signal into a command code "A" (10 bytes) having a transmission rate of 200 Kb / s, and converts the signal into a card (10 bytes). 1 to the processor 27. The processor 27 in the card 1 reads the command code "A" demodulated by the demodulator 41 and reads a 10-byte ID number "B" from a predetermined address "a" in the memory 28 in the card 1 according to the command. Do.

The processor 27 in the card 1 outputs the 10-byte ID number "B" read from the memory 28 in the card 1 to the modulator 40 for short waves in the card 1 at a transmission speed of 200 Kb / s. Upon receiving the 10-byte ID number “B” input from the processor 27 in the card 1, the short-wave modulator 40 modulates it, and modulates it by 10 MHz.
The modulated signal in the short wave band of z is output to the short wave transmitting / receiving antenna 39 in the card 1. Antenna 3 for shortwave transmission and reception
Reference numeral 9 designates the 10-MHz modulated signal as a transmission signal from the card 1 to the reader / writer 2 by 10 cm from the card 1.
The signal is transmitted as airwaves to the reader / writer 2 distant from the air. It should be noted that 1 from the card 1 to the reader / writer 2
Transmission of the 0-byte ID number “B” requires 400 μs.

The short wave transmitting / receiving antenna 34 in the reader / writer 2 is connected to the short wave transmitting / receiving antenna 3 in the card 1.
When receiving the 10-MHz radio wave transmitted from 9, it converts it into a 10-MHz reception signal and outputs it to the short-wave RF circuit 33 in the reader / writer 2. The short-wave RF circuit 33 detects the received signal of 10 MHz, converts it into a baseband signal of 200 Kb / s, and outputs it to the short-wave demodulator 32 in the reader / writer 2. The short-wave demodulator 32 demodulates the baseband signal input from the short-wave RF circuit 33 and outputs the obtained ID number “B” to the processor 18 in the reader / writer 2. The processor 18 in the reader / writer 2 reads the ID number “B” input from the short wave demodulator 32 and refers to the memory 19 in the reader / writer 2 to determine whether or not the ID number is permitted by the communication interface 17. To confirm. As a result of the reference, the matching code “C” is output to the communication interface 17 when there is a matching number, and the mismatch code “D” is output to the communication interface 17 when there is no matching number.

The power supply circuit 11 in the writer 3
On the other hand, in order to read the 100-byte personal information code “F” from the memory 28 in the card 1, the power to be supplied to the card 1 is generated and output to the short-wave power modulator 12.
The short-wave power modulator 12 in the writer 3 modulates the power generated by the power supply circuit 11 and outputs the power to the power signal transmission antenna 13 in the writer 3 as a short-wave band power signal. The power signal transmitting antenna 13 transmits the power signal modulated by the short-wave power modulator 12 to the card 1. The power signal receiving antenna 14 in the card 1 receives the power signal transmitted from the writer 3 and
Output to the short-wave power supply circuit 15 inside. Shortwave power supply circuit 1
5 rectifies the input short-wave band power signal, and
Antenna 39, modulator 40, demodulator 41, antenna 42, modulator 43, demodulator 44, and processor 2
7. Supply drive power to the memory 28.

While the writer 3 is transmitting the power generated by the power supply circuit 11 to the card 1 as a power signal, the communication interface 17 transmits a 10-byte instruction code “F” for acquiring the personal information code “F” of the card 1. E ”is output to the processor 18 in the reader / writer 2. The processor 18 in the reader / writer 2 receiving the instruction code “E” from the communication interface 17 transmits the instruction code “E” (10 bytes).
Is output to the microwave modulator 35 in the reader / writer 2 at a transmission speed of 2 Mb / s. The microwave modulator 35 modulates the command code “E” into a signal of 2 GHz, and outputs the obtained modulated signal to the microwave RF circuit 37 in the reader / writer 2. The microwave RF circuit 37 amplifies the modulation signal input from the microwave modulator 35,
It is output to a microwave transmitting / receiving antenna 38 in the reader / writer 2. Antenna 38 for microwave transmission and reception
Is 2 GHz amplified by the microwave RF circuit 37.
Is transmitted as a transmission signal from the reader / writer 2 to the card 1 toward the card 1 distant from the reader / writer 2 by several tens of cm.

When the microwave transmitting / receiving antenna 42 in the card 1 receives the 2 GHz radio wave transmitted from the microwave transmitting / receiving antenna 38 in the reader / writer 2,
It is converted into a 2 GHz reception signal and output to the microwave demodulator 44 in the card 1. The microwave demodulator 44 detects the received 2 GHz reception signal,
The signal is demodulated into a command code “E” (10 bytes) having a transmission rate of b / s, and is output to the processor 27 in the card 1.
The processor 27 in the card 1 reads the command code "E" demodulated by the demodulator 44, and reads 1 from a predetermined address "b" of the memory 28 in the card 1 according to the command.
The 00-byte personal information code "F" is read.

The processor 27 in the card 1 further converts the read personal information code "F" (100 bytes) into 2M.
The signal is output to the microwave modulator 43 in the card 1 at a transmission speed of b / s. Modulator 43 for microwave is card 1
When a 100-byte personal information code "F" is received from the processor 27 in the card 1, it is modulated and output to the microwave transmitting / receiving antenna 42 in the card 1 as a 2 GHz microwave band modulated signal. The antenna 42 for microwave transmission and reception uses the modulated signal of 2 GHz as a transmission signal from the card 1 to the reader / writer 2,
It is transmitted to the reader / writer 2 which is 0 cm away. In addition,
The transmission of the 100-byte personal information code “F” from the card 1 to the reader / writer 2 requires 400 μs.

When the microwave transmitting / receiving antenna 38 in the reader / writer 2 receives the 2 GHz radio wave transmitted from the microwave transmitting / receiving antenna 42 in the card 1, it converts it into a 2 GHz received signal. The signal is output to the microwave RF circuit 37 in the reader / writer 2. The microwave RF circuit 37 detects the received signal of 2 GHz, converts it into a baseband signal of 2 Mb / s, and inputs it to the microwave demodulator 36 in the reader / writer 2. The microwave demodulator 36 is a microwave RF circuit 37.
From the baseband signal at a rate of 2 Mb / s,
The obtained personal information code “F” is output to the processor 18 in the reader / writer 2. The processor 18 in the reader / writer 2 reads the personal information code “F” (100 bytes) from the microwave demodulator 26 and outputs it to the communication interface 17. As described above, the data transmission time from the card 1 to the reader / writer 2 is the same at 400 μs for both the 10-byte ID number “B” and the 100-byte personal information code “F”.

As described above, according to the first embodiment, a plurality of frequency bands (short wave, microwave) are used for data transmission / reception, so that data transmission / reception to one card 1 is 200 Kb / s. s and 2 Mb / s, which is faster than that, it is possible to use one card 1 for number checking and the above number checking such as reading of personal information code. It can be used for multiple applications such as those that require a large amount of data, and for applications that require a large amount of data, data can be transmitted and received at high speed, so efficiency can be improved. And a data transfer between the reader / writer 2 and the card 1 is performed during a period in which power is supplied from the writer 3 to the card 1. To be done, it is not necessary to provide a secondary battery in the card 1, the effect of such attained even lower cost and weight of the card 1 can be obtained.

Embodiment 2 FIG. 3 is a block diagram showing a wireless card system according to Embodiment 2 of the present invention. In the figure, 1 is a card, 2 is a reader / writer,
3 is a writer, 11 is a power supply circuit forming a driving power supply system, 12 is a short-wave power modulator, 13 is an antenna for transmitting a power signal, 14 is an antenna for receiving a power signal, and 15 is a short-wave antenna. Power supply circuit, 17 is a communication interface, 18 is a processor in the reader / writer 2, 19 is a memory in the reader / writer 2, 27 is a card 1
, A memory in the card 1, 31 a short-wave modulator that forms the first data transmission system, 32 a short-wave demodulator, 33 a short-wave RF circuit, and 34 a reader / writer 2 Antenna for transmitting and receiving shortwaves within
9 is a short-wave transmitting / receiving antenna in the card 1;
Is a modulator for short wave in the card 1, 41 is a demodulator for short wave in the card 1, 35 is a modulator for microwave forming the second data transmission system, and 36 is a demodulator for microwave. , 37 are also RF circuits for microwaves, 38
Is a microwave transmitting / receiving antenna in the reader / writer 2, 42 is a microwave transmitting / receiving antenna in the card 1, 43 is a microwave modulator in the card 1, and 44 is a microwave modulator in the card 1. It is a wave demodulator. Note that these are the portions corresponding to those of the first embodiment shown in FIG. 1 with the same reference numerals, and therefore detailed description is omitted.

Reference numeral 45 is arranged in the card 1 and connected to the processor 27 in the card 1 to select and set whether the application is for high-speed data transmission or a check application. Is a selection switch. In addition,
The wireless card system according to the second embodiment includes:
The difference from the first embodiment shown in FIG. 1 is that the selection switch 45 is connected to the processor 27 in the card 1.

Next, the operation will be described. Here, FIG.
FIG. 7 is an explanatory diagram showing a signal flow in the wireless card system according to Embodiment 2 of the present invention. Hereinafter, the operation will be described with reference to FIG. When used for checking the ID number of the card 1, the selection switch 45 in the card 1 shown in FIG.
Is set to use “1” first. Thus, when the selection switch 45 is set to the use "1", data at another transmission speed (for example, 2 Mb / s) used for the use such as reading of the personal information code is cut off.

The power supply circuit 11 in the writer 3
The power to be supplied to the card 1 is generated and output to the short-wave power modulator 12 in the writer 3. Power modulator for short wave 1
2 modulates the power generated from the power supply circuit 11,
The signal is output to the power signal transmitting antenna 13 in the writer 3 as a short-wave band power signal. Antenna 1 for transmitting power signal
3 transmits the power signal modulated by the short-wave power modulator 12 to the card 1. The power signal receiving antenna 14 in the card 1 receives the power signal transmitted from the writer 3 by, for example, an electromagnetic coupling method and outputs the power signal to the short-wave power supply circuit 15. The short-wave power supply circuit 15 rectifies the received power signal and supplies drive power to the antenna 39, modulator 40, demodulator 41, antenna 42, modulator 43, demodulator 44, the processor 27, and the memory 28 in the card 1. Supply.

While the power generated by the power supply circuit 11 of the writer 3 is being transmitted from the writer 3 to the card 1, the communication interface 17 uses the command code “A” (10 bytes) for checking the ID number of the card 1. ) Is output to the processor 18 in the reader / writer 2. Here, data transmission / reception between the reader / writer 2 and the card 1 is performed only during a period in which power is supplied from the writer 3 to the card 1. The processor 18 in the reader / writer 2 outputs the 10-byte command code “A” to the short-wave modulator 31 in the reader / writer 2 at a transmission speed of 200 Kb / s.

The short-wave modulator 31 modulates the command code "A" input from the processor 18 in the reader / writer 2 and outputs it to the short-wave RF circuit 33 in the reader / writer 2 as a 10 MHz modulated signal. The short-wave RF circuit 33 amplifies the modulated signal from the short-wave modulator 31 and outputs it to the short-wave transmitting / receiving antenna 34 in the reader / writer 2. The short-wave transmission / reception antenna 34 uses the 10-MHz modulated signal amplified by the short-wave RF circuit 33 as a transmission signal from the reader / writer 2 to the card 1, and transmits a 10-cm signal from the reader / writer 2 to the card 1.
It is transmitted as airwaves to the card 1 at a distance.

The antenna 39 for transmitting and receiving short waves in the card 1
Is an antenna 3 for transmitting and receiving short waves in the reader / writer 2.
When receiving the 10-MHz radio wave transmitted from 4, it converts it to a 10-MHz reception signal and outputs it to the short-wave demodulator 41 in the card 1. The demodulator 41 for short wave is the 10
The received signal of MHz is detected, demodulated to a code (10 bytes) of the command code “A” having a transmission speed of 200 Kb / s, and output to the processor 27 in the card 1. The processor 27 in the card 1 reads the command code "A" demodulated by the demodulator 41 and reads a 10-byte ID number "B" from a predetermined address "a" in the memory 28 in the card 1 according to the command. .

The processor 27 in the card 1 further outputs the read ID number “B” to the modulator 40 for short waves in the card 1 at a transmission speed of 200 Kb / s. At this time, since the selection switch 45 in the card 1 is set to the use “1” as described above,
Other transmission rate codes, such as / s, are locked and cannot be read by the processor 27 in the card 1.

The short wave modulator 40 in the card 1 modulates the ID number “B” output from the processor 27 in the card 1 and converts it into a 10 MHz modulated signal as a short wave transmitting / receiving antenna 39 in the card 1. Output to The short-wave transmission / reception antenna 39 transmits the modulated signal of 10 MHz as a transmission signal from the card 1 to the reader / writer 2 to the reader / writer 2 which is about 10 cm away from the card 1 as a radio wave in the air. Note that the transmission of the 10-byte ID number “B” from the card 1 to the reader / writer 2 requires 400 bytes.
It takes μs.

The short-wave transmitting / receiving antenna 34 in the reader / writer 2 receives the radio wave transmitted from the short-wave transmitting / receiving antenna 39 in the card 1, converts it into a received signal, and converts the received signal into a short-wave signal in the reader / writer 2. Output to the RF circuit 33.
The short-wave RF circuit 33 detects the received 10 MHz received signal, converts the signal to a baseband signal of 200 Kb / s, and outputs it to the short-wave demodulator 32 in the reader / writer 2. The short-wave demodulator 32 demodulates the baseband signal converted by the short-wave RF circuit 33 into an ID number “B” and outputs it to the processor 18 in the reader / writer 2. The processor 18 in the reader / writer 2 has its ID number "B"
Is read, and it is confirmed whether or not it is the permission ID number by referring to the memory 19 in the reader / writer 2. As a result of the reference, the matching code “C” is output to the communication interface 17 when there is a matching number, and the mismatch code “D” is output to the communication interface 17 when there is no matching number.

On the other hand, the personal information code “F” in the card 1
When using for the purpose of reading (100 bytes), the selection switch 45 in the card 1 is first set to the purpose "2". When the selection switch 45 is set to the application “2”, data at a different transmission speed (for example, 200 Kb / s) used in another application is cut off.

The power supply circuit 11 in the writer 3
The power to be supplied to the card 1 is generated and output to the short-wave power modulator 12 in the writer 3. Power modulator for short wave 1
2 modulates the power generated by the power supply circuit 11 and outputs the modulated power to the antenna 13 for transmitting a power signal in the writer 3 as a short-wave band power signal. Antenna 13 for transmitting power signal
Transmits the power signal modulated by the short-wave power modulator 12 to the card 1. The power signal receiving antenna 14 in the card 1 receives the power signal transmitted from the writer 3 and outputs the power signal to the short-wave power supply circuit 15 in the card 1. The short-wave power supply circuit 15 rectifies the input power signal, and the antenna 39, the modulator 40, the demodulator 41, the antenna 42, the modulator 43, the demodulator 44, the processor 2 in the card 1
7 and the memory 28.

The communication interface 17 reads the 100-byte personal information code “F” from the memory 28 in the card 1 while the writer 3 is transmitting the power generated by the power supply circuit 11 to the card 1 as a power signal. The instruction code “E” (10 bytes) is output to the processor 18 in the reader / writer 2. Processor 18 in reader / writer 2
Outputs the command code "E" to the microwave modulator 35 in the reader / writer 2 at a transmission rate of 2 Mb / s. The microwave modulator 35 modulates the command code “E” input from the processor 18 in the reader / writer 2 into a 2 GHz signal, and outputs the signal to the microwave RF circuit 37 in the reader / writer 2 as a 2 GHz modulated signal. . R for microwave
The F circuit 37 amplifies the 2 GHz modulated signal input from the microwave modulator 35 and outputs the amplified signal to the microwave transmitting / receiving antenna 38 in the reader / writer 2. The microwave transmitting / receiving antenna 38 is a microwave RF circuit 37.
Is transmitted as a transmission signal from the reader / writer 2 to the card 1 to the card 1 several tens of centimeters away from the reader / writer 2.

When the microwave transmitting / receiving antenna 42 in the card 1 receives the radio wave transmitted from the microwave transmitting / receiving antenna 38 in the reader / writer 2, the antenna 42 transmits the radio wave to 2G.
The received signal is converted to a received signal in Hz and output to a demodulator 44 for microwaves in the card 1. A microwave demodulator 44 detects a microwave band received signal from the microwave transmitting / receiving antenna 42, demodulates the received signal into a code of an instruction code “E” at a speed of 2 Mb / s, and performs 27. The processor 27 in the card 1 uses the demodulator 4
4, the command code "E" demodulated is read, and a predetermined address "b" of the memory 28 in the card 1 is read in accordance with the command.
A 100-byte personal information code "F" is read.

The processor 27 in the card 1 further outputs the read personal information code "F" to the microwave modulator 43 in the card 1 at a transmission speed of 2 Mb / s.
At this time, since the selection switch 45 in the card 1 is set to the use “2” as described above, for example, 200
Codes of other transmission rates, such as Kb / s, are locked and cannot be read by the processor 27 in the card 1.

The modulator 43 for microwave is the card 1
Modulates the personal information code “F” (100 bytes) output from the processor 27 in the card 1, and as a 2 GHz modulated signal, the microwave transmitting / receiving antenna 42 in the card 1
Output to The antenna 42 for transmitting and receiving microwaves receives the modulated signal input from the modulator 43 for microwave as a transmission signal from the card 1 to the reader / writer 2,
2GHz toward reader / writer 2 several tens of cm away from
To send. Note that transmission of a 100-byte personal information code from the card 1 to the reader / writer 2 requires 400 μs.

When the microwave transmitting / receiving antenna 38 in the reader / writer 2 receives the 2 GHz radio wave transmitted from the microwave transmitting / receiving antenna 42 in the card 1,
The signal is converted into a reception signal and output to the microwave RF circuit 37 in the reader / writer 2. RF circuit for microwave 3
7 detects the input microwave reception signal and performs 2M
The signal is converted into a baseband signal of b / s and input to the microwave demodulator 36 in the reader / writer 2. The microwave demodulator 36 demodulates the baseband signal converted by the microwave RF circuit 37 at a rate of 2 Mb / s, and outputs the obtained personal information code “F” to the processor 18 in the reader / writer 2. I do. Processor 18 in reader / writer 2
Reads this 100-byte personal information code “F” and outputs it to the communication interface 17.

As described above, according to the second embodiment, by providing the selection switch 45, when the switch is used for checking a number, it is used for reading a personal information code. It is possible to block data, and if it is used for reading personal information code, it will be possible to block data used for number check, so it can be used for multiple purposes. When transmitting / receiving data to / from a single card 1 that can be used, it is possible to block data transmission / reception for uses other than the desired use, thereby providing efficient and secure wireless communication. The effect that a card system can be realized is obtained.

Embodiment 3 In the second embodiment, the case where the selection switch 45 in the card 1 is set in accordance with the use such as checking the ID number of the card 1 or reading the personal information code in the card 1 has been described. The switch information set in the above may be read in advance by the reader / writer 2, and the reader / writer 2 may determine whether to perform data transmission in the microwave band or in the short wave band according to the information. Embodiment 3 relates to such a wireless card system, and since the system configuration is the same as that of Embodiment 2 shown in FIG. 3, illustration and description thereof are omitted.

Next, the operation will be described. Here, FIG.
9 is a flowchart showing a flow of processing in the wireless card system according to Embodiment 3 of the present invention.
The operation will be described below with reference to FIG. First, in step ST1, the power supply circuit 11 of the writer 3 generates power to be supplied to the card 1 and modulates the power into a short-wave power signal by the short-wave power modulator 12, and transmits the signal to the card 1. . Next, in step ST2, the selection switch 45 of the card 1 is set to "personal information" for reading the personal information code "F". When the ID number is obtained, the selection switch 45
Is set to “ID number”. Next, in step ST3, the code of the “personal information” is set in the processor 27 in the card 1 based on the switch information “personal information” set by the selection switch 45.

Next, in step ST4, the reader / writer 2 modulates the command code received from the communication interface 17 into a short-wave band modulation signal and transmits it to the card 1 as a transmission signal. Next, in step ST5, the card 1 demodulates the received transmission signal into a command code and outputs it to the processor 27. Next, in step ST6, the processor 27 in the card 1 modulates the code of the "personal information" set in the selection switch 45 in step ST2 and transmits the code to the reader / writer 2. Next, step ST7
, The reader / writer 2 receives the “personal information” code sent from the card 1.

Next, in step ST8, the processor 18 in the reader / writer 2 determines whether the switch information set by the selection switch 45 in step ST2 is "personal information" or "ID information". Here, since it is set to “personal information”, the reader / writer 2 transmits and receives data to and from the card 1 in the microwave band in step ST9. If the switch information set by the selection switch 45 in step ST2 is “ID information”, the reader / writer 2 transmits and receives data to and from the card 1 in a short wave band.

Next, in step ST10, card 1
Receives the data transmitted from the reader / writer 2. Next, in step ST11, the processor 27 in the card 1 searches the memory 28 for the personal information code "F" of the card 1. Next, in step ST12, the card 1 modulates the searched personal information code "F" and transmits data in the microwave band. Next, in step ST13, the reader / writer 2 receives the data of the personal information code "F". Next, step ST1
In 4, the processor 18 in the reader / writer 2 reads the transmitted personal information code “F” and transmits it to the communication interface 17. Finally, step ST1
At 5, the power signal transmitted from the writer 3 to the card 1 is stopped. Thus, a series of data transmission / reception between the reader / writer 2 and the card 1 ends.

As described above, according to the third embodiment, the use is determined by reading the code of the switch information set by the selection switch 45 in the card 1, and the data is transmitted and received in the microwave band. Whether the data is transmitted or received in the short-wave band can be determined by the reader / writer 2, and an effect that an efficient wireless card system can be realized is obtained.

Embodiment 4 FIG. 6 is a block diagram showing a wireless card system according to a fourth embodiment of the present invention. The corresponding parts are denoted by the same reference numerals as those in the first embodiment shown in FIG. In the figure, 4
Reference numeral 6 denotes a detector that identifies whether the card 1 has entered a range in which data can be transmitted / received to / from the reader / writer 2 (a range in which power can be supplied from the writer 3), and detects the presence or absence of the card 1. Reference numeral 47 denotes a detection antenna through which a signal for detecting the presence or absence of the card 1 from the detector 46 is transmitted and received. The wireless card system according to the fourth embodiment is different from the first embodiment shown in FIG. 1 in that the writer 3 includes the detector 46 and the detection antenna 47.

Next, the operation will be described. Here, FIG.
FIG. 7 is an explanatory diagram showing a signal flow in a wireless card system according to Embodiment 4 of the present invention. Hereinafter, the operation will be described with reference to FIG. FIG.
, The detector 46 in the writer 3 sends a signal for detecting the presence or absence of the card 1 to the detection antenna 47 in the writer 3.
Send at more regular time intervals. When the card 1 enters a range in which data can be transmitted and received, that is, a range in which power can be supplied from the writer 3, the detector 46 detects the
7 to detect. Thus, the detector 46 that has detected that the card 1 is present notifies the power supply circuit 11 in the writer 3 of the detection.

The power supply circuit 11 having received the notification from the detector 46 generates power to be supplied to the card 1 and outputs the power to the short-wave power modulator 12 in the writer 3. The shortwave power modulator 12 modulates the power from the power supply circuit 11 and outputs the modulated power to the power signal transmission antenna 13 in the writer 3 as a shortwave power signal. The power signal transmitting antenna 13 transmits the power signal modulated by the short-wave power modulator 12 to the card 1. The power signal receiving antenna 14 in the card 1 receives the power signal from the writer 3 by an electromagnetic coupling method or the like and outputs it to the short-wave power supply circuit 15 in the card 1. Shortwave power supply circuit 15
Rectifies the input power signal, and converts the antenna 39, the modulator 40, the demodulator 41, the antenna 42, the modulator 43, the demodulator 44, the processor 27, the memory 2 in the card 1
8 is supplied with driving power.

While the writer 3 is transmitting the power generated by the power supply circuit 11 as a power signal, the communication interface 17
Sends a 10-byte instruction code “A” for checking the ID number of the card 1 to the processor 18 in the reader / writer 2.
Output to Data transmission between the reader / writer 2 and the card 1 is performed only during a period in which power is supplied to the card 1 from the power supply circuit 11 of the writer 3.
The processor 18 in the reader / writer 2 outputs the 10-byte instruction code “A” to the short-wave modulator 31 in the reader / writer 2 at a transmission speed of 200 Kb / s. The short-wave modulator 31 modulates the command code “A” and outputs it to the short-wave RF circuit 33 in the reader / writer 2 as a 10-MHz modulated signal. The short-wave RF circuit 33 amplifies the modulated signal,
An antenna 34 for transmitting and receiving short-waves in the reader / writer 2
Output to The short wave transmitting / receiving antenna 34 is a short wave RF
The 10-MHz modulated signal amplified by the circuit 33 is transmitted as airwaves to the card 1 about 10 cm away from the reader / writer 2 as a transmission signal from the reader / writer 2 to the card 1 in the air.

The antenna 39 for transmitting and receiving short waves in the card 1
Receives a 10 MHz radio wave transmitted from the short wave transmitting / receiving antenna 34 in the reader / writer 2,
The signal is converted into a received signal of MHz and output to the demodulator 41 for short waves in the card 1. The short-wave demodulator 41 detects the 10-MHz reception signal from the short-wave transmission / reception antenna 39 and converts it into a command code "A" having a transmission rate of 200 Kb / s.
(10 bytes) and output to the processor 27 in the card 1. The processor 27 in the card 1 reads the instruction code "A", and reads a 10-byte ID number "B" from a predetermined address "a" in the memory 28 in the card 1 according to the instruction.

The processor 27 in the card 1 further outputs the read ID number “B” to the short wave modulator 40 in the card 1 at a transmission speed of 200 Kb / s. The short-wave modulator 40 modulates the ID number “B” output from the processor 27 in the card 1 and outputs it to the short-wave transmission / reception antenna 39 in the card 1 as a 10-MHz modulated signal. The antenna 39 for transmitting and receiving short-wave is 10 MH
The modulated signal of z is transmitted in the air as radio waves from the card 1 to the reader / writer 2 as a transmission signal to the reader / writer 2 about 10 cm away from the card 1. Note that transmission of the 10-byte ID number “B” from the card 1 to the reader / writer 2 requires 400 μs.

The short-wave transmission / reception antenna 34 in the reader / writer 2 receives the radio wave transmitted from the short-wave transmission / reception antenna 39 in the card 1, converts it into a 10 MHz reception signal, and RF circuit for short wave 33
Output to The short-wave RF circuit 33 detects the input received signal, converts it into a 200 Kb / s baseband signal, and sends it to the short-wave demodulator 32 in the reader / writer 2. The short-wave demodulator 32 demodulates the baseband signal converted by the short-wave RF circuit 33 into an ID number “B”.
Output to the processor 18 in the reader / writer 2. The processor 18 in the reader / writer 2 reads the ID number “B” and checks whether or not the ID number is permitted by the communication interface 17 with reference to the memory 19 in the reader / writer 2. As a result of the reference, if there is a match number, a match code “C” is set. If there is no match, a mismatch code “D” is set.
Are output to the communication interface 17 respectively.

On the other hand, the personal information code “F” in the card 1
Also, when the card 1 is used for reading (100 bytes), the detector 46 in the writer 3 detects the card 1 Detect that there is. At this time, the power supply circuit 11 in the writer 3 generates power to be supplied to the card 1 and outputs it to the short-wave power modulator 12 in the writer 3. The shortwave power modulator 12 modulates the power generated by the power supply circuit 11 and outputs the modulated power to the power signal transmission antenna 13 in the writer 3 as a shortwave band power signal. The power signal transmitting antenna 13 transmits the received power signal to the card 1. The power signal receiving antenna 14 in the card 1 receives the power signal from the writer 3 and outputs it to the short-wave power supply circuit 15 in the card 1. The short-wave power supply circuit 15 rectifies the received power signal to form an antenna 39, a modulator 40, and a demodulator 4 in the card 1.
1, supply driving power to the antenna 42, the modulator 43, the demodulator 44, the processor 27, and the memory 28.

While the writer 3 is transmitting the power generated by the power supply circuit 11 as a power signal, the communication interface 17
Is the one for acquiring the personal information code from the card 1
The instruction code “E” of 0 bytes is output to the processor 18 in the reader / writer 2. Data transmission between the reader / writer 2 and the card 1 is performed only during a period in which power is supplied to the card 1 from the power supply circuit 11 of the writer 3. The processor 18 in the reader / writer 2 receiving this command code “E” from the communication interface 17
It is output to the microwave modulator 35 in the reader / writer 2 at a transmission speed of 2 Mb / s. Microwave modulator 3
Numeral 5 modulates the input instruction code "E" and outputs it to the microwave RF circuit 37 in the reader / writer 2 as a 2 GHz modulated signal. The microwave RF circuit 37 amplifies the input modulated signal and outputs the amplified signal to the microwave transmitting / receiving antenna 38 in the reader / writer 2. The microwave transmitting / receiving antenna 38 transmits the modulated signal of 2 GHz amplified by the microwave RF circuit 37 as a transmission signal from the reader / writer 2 to the card 1 toward the card 1 several tens of cm away from the reader / writer 2. .

When the microwave transmitting / receiving antenna 42 in the card 1 receives the radio wave transmitted from the microwave transmitting / receiving antenna 38 in the reader / writer 2, it receives the radio wave.
The signal is converted into a reception signal of GHz and output to the microwave demodulator 44 in the card 1. The microwave demodulator 44 detects the received microwave band received signal and converts it to 2.
At the speed of Mb / s, the signal is demodulated into the code of the instruction code “E” and output to the processor 27 in the card 1. The processor 27 in the card 1 reads the instruction code "E", and reads a 100-byte personal information code "F" from a predetermined address "b" in the memory 28 in the card 1 according to the instruction.

The processor 27 in the card 1 further outputs the personal information code "F" read from the memory 28 in the card 1 to the microwave modulator 43 in the card 1 at a transmission speed of 2 Mb / s. . The microwave modulator 43 modulates the personal information code “F” output from the processor 27 in the card 1 and outputs it to the microwave transmitting / receiving antenna 42 in the card 1 as a 2 GHz modulated signal. The microwave transmitting / receiving antenna 42 transmits the modulated signal as a transmission signal from the card 1 to the reader / writer 2 at 2 GHz to the reader / writer 2 distant from the card 1 by several tens of cm. The transmission of the personal information code “F” from the card 1 to the reader / writer 2 requires 400
It takes μs.

When the microwave transmitting / receiving antenna 38 in the reader / writer 2 receives the 2 GHz radio wave transmitted from the microwave transmitting / receiving antenna 42 in the card 1,
The signal is converted into a reception signal and output to the microwave RF circuit 37 in the reader / writer 2. RF circuit for microwave 3
7 detects the reception signal in the microwave band, and detects 2 Mb / s
And sends it to the microwave demodulator 36 in the reader / writer 2. The microwave demodulator 36 demodulates the baseband signal converted by the microwave RF circuit 37 into a personal information code “F” at a speed of 2 Mb / s, and outputs it to the processor 18 in the reader / writer 2. The processor 18 in the reader / writer 2 reads the personal information code “F” (100 bytes) and outputs it to the communication interface 17. As described above, the data transmission time from the card 1 to the reader / writer 2 is the same as that of the 10-byte ID number “B” and the 100-byte personal information code “F”.
Also requires the same 400 μs.

As described above, according to the fourth embodiment, when the writer 3 detects that the card 1 has entered the data transmission / reception range with the detector 46, the writer 3 starts power supply to the card 1. Unlike the case where the writer 3 always transmits the power signal, the power supplied by the writer 3 can be saved, and the effect of realizing an efficient wireless card system can be obtained.

Embodiment 5 FIG. 8 is a block diagram showing a wireless card system according to a fifth embodiment of the present invention. The corresponding parts are denoted by the same reference numerals as those of the fourth embodiment shown in FIG. In the drawing, reference numeral 4 denotes a card equivalent to the card 1 in the fourth embodiment, 5 denotes a first reader / writer equivalent to the reader / writer 2 in the fourth embodiment, and 6 denotes a card. This is a first writer configured similarly to the writer 3 in the fourth embodiment. Reference numeral 7 denotes a second reader / writer that is provided separately from the first reader / writer 5 and that has the same configuration as the reader / writer 2 in the fourth embodiment. Reference numeral 8 denotes a second writer provided separately from the first writer 6 and configured similarly to the writer 3 in the fourth embodiment.

Reference numeral 48 denotes the first reader / writer 5
And the second reader / writer 7, and the first writer 6 and the second
This is a control device that controls the operation of the writer 8 and processes information obtained from the processors 18 of the first reader / writer 5 and the second reader / writer 7. Reference numeral 49 denotes a display device for displaying information processed by the control device 48. The wireless card system according to the fifth embodiment includes a plurality of reader / writers (first reader / writer 5 and second reader / writer 7 in the case shown) and a plurality of writers (first writer 6 in the case shown). And a second writer 8), a control device 48 and a display device 49.
This embodiment is different from the fourth embodiment shown in FIG.

Next, the operation will be described. Here, FIG.
FIG. 9 is an explanatory diagram showing a signal flow in a wireless card system according to Embodiment 5 of the present invention. The operation will be described below with reference to FIG. FIG.
In the same manner as in the fourth embodiment, the power supply circuit 11 in the first writer 6 uses the detector 46 in the first writer 6 so that the card 4 can transmit and receive data. ) Is detected, power for supplying to the card 4 is generated and output to the short-wave power modulator 12. The shortwave power modulator 12 in the first writer 6 modulates the power generated by the power supply circuit 11 and outputs the modulated power to the power signal transmission antenna 13 as a shortwave power signal. Antenna 13 for transmitting power signal in first writer 6
Transmits the power signal to the card 4. The power signal receiving antenna 14 in the card 4 receives the transmitted power signal and outputs it to the short-wave power supply circuit 15 in the card 4. The short-wave power supply circuit 15 in the card 4 rectifies the input power signal, and the antenna 39 and the modulator 4 in the card 4
0, demodulator 41, antenna 42, modulator 43, demodulator 4
4, and drive power to the processor 27 and the memory 28.

While the first writer 6 is transmitting the power generated by the power supply circuit 11 as a power signal, the communication interface 17 transmits a 10-byte instruction code “A” for checking the ID number of the card 4 to the first writer 6. The data is output to the processor 18 in one reader / writer 5. The data transmission / reception between the first reader / writer 5 and the card 4 is performed only during a period in which power is supplied to the card 4 from the power supply circuit 11 in the first writer 6. The processor 18 in the first reader / writer 5 outputs the 10-byte command code “A” to the short-wave modulator 31 in the first reader / writer 5 at a transmission speed of 200 Kb / s. The short-wave modulator 31 modulates the command code “A” and outputs it as a 10-MHz modulated signal to the short-wave RF circuit 33 in the first reader / writer 5. The short-wave RF circuit 33 amplifies the input modulation signal and outputs it to the short-wave transmission / reception antenna 34 in the first reader / writer 5. The short-wave transmitting / receiving antenna 34 uses the 10-MHz modulated signal amplified by the short-wave RF circuit 33 as a transmission signal from the first reader / writer 5 to the card 4 and transmits the modulated signal to the card 4 about 10 cm away from the first reader / writer 5. It is transmitted to the air as radio waves.

The antenna 39 for transmitting and receiving short waves in the card 4
Receives a 10-MHz radio wave transmitted from the short-wave transmission / reception antenna 34 in the first reader / writer 5, converts it into a 10-MHz reception signal, and outputs it to the short-wave demodulator 41 in the card 4. . The short-wave demodulator 41 detects the input 10-MHz received signal, demodulates the signal into a command code “A” (10 bytes) having a transmission rate of 200 Kb / s, and outputs it to the processor 27 in the card 4. Card 4
Processor 27 reads the instruction code "A",
In accordance with the instruction, a 10-byte ID number "B" is read from a predetermined address "a" of the memory 28 in the card 4.

The processor 27 in the card 4 further outputs the read ID number "B" to the short-wave modulator 40 in the card 4 at a transmission speed of 200 Kb / s. The modulator 40 for short-wave modulates the 10-byte ID number “B” output from the processor 27 in the card 4 and
The signal is output to the short wave transmitting / receiving antenna 39 in the card 4 as a modulated signal of MHz. The short-wave transmission / reception antenna 39 transmits the modulated signal of 10 MHz as a transmission signal from the card 4 to the first reader / writer 5 to the first reader / writer 5 distant from the card 4 by about 10 cm as airwaves. .

The short-wave transmission / reception antenna 34 in the first reader / writer 5 receives the radio wave transmitted from the short-wave transmission / reception antenna 39 in the card 4, converts the received radio wave into a received signal, and converts the received signal into a first reader / writer. RF circuit 33 for short wave in writer 5
Output to The short-wave RF circuit 33 receives the input 10 MH
The received signal of z is detected, converted to a baseband signal of 200 Kb / s, and output to the short wave demodulator 32 in the first reader / writer 5. The short-wave demodulator 32 demodulates the baseband signal converted by the short-wave RF circuit 33 into an ID number “B” and outputs it to the processor 18 in the first reader / writer 5. The processor 18 in the first reader / writer 5 reads the ID number “B” and checks whether or not the ID number is an authorized ID number by referring to the memory 19 in the first reader / writer 5. If there is a match number as a result of the reference, match code “C” is set to communication interface 1
7 and the controller 48. In the case of a mismatch, a mismatch code “D” is output to the control device 48. The control device 48 controls the processor 1 in the first reader / writer 5.
The number of matching codes “C” and the number of mismatching codes “D” output from 8 are counted.

On the other hand, the power supply circuit 11 in the first writer 6 reads the 100-byte personal information code “F” in the card 4 by using the detector 46 in the first writer 6. When it is detected that the card 4 has entered the range in which data can be transmitted and received, the power for supplying the card 4 is generated and output to the short-wave power modulator 12 in the first writer 6. The shortwave power modulator 12 modulates the power generated by the power supply circuit 11 and outputs the modulated power to the power signal transmission antenna 13 in the first writer 6 as a shortwave power signal.
The power signal transmitting antenna 13 transmits the short-wave band power signal to the card 4. The power signal receiving antenna 14 in the card 4 receives the transmitted power signal and outputs it to the short-wave power supply circuit 15 in the card 4. The short-wave power supply circuit 15 rectifies the input power signal, and the antenna 39, the modulator 40, the demodulator 41, the antenna 42,
The driving power is supplied to the modulator 43, the demodulator 44, the processor 27, and the memory 28.

While the first writer 6 is transmitting the power generated by the power supply circuit 11 as a power signal, the communication interface 17 sends a 10-byte instruction code “E” to the processor 18 in the first reader / writer 5. Output. The processor 18 in the first reader / writer 5 outputs the input instruction code “E” to the microwave modulator 35 in the first reader / writer 5 at a transmission rate of 2 Mb / s. The microwave modulator 35 modulates the instruction code “E” into a signal of 2 GHz and outputs the modulated signal to the microwave RF circuit 37 in the first reader / writer 5 as a modulated signal. The microwave RF circuit 37 amplifies the 2 GHz modulated signal and
Antenna 3 for microwave transmission and reception in reader / writer 5
8 is output. The microwave transmitting / receiving antenna 38 uses the modulated signal amplified by the microwave RF circuit 37 as a transmission signal from the first reader / writer 5 to the card 4,
The data is transmitted to the card 4 several tens of cm away from the first reader / writer 5.

When the microwave transmitting / receiving antenna 42 in the card 4 receives the radio wave transmitted from the microwave transmitting / receiving antenna 38 in the first reader / writer 5, it converts it into a 2 GHz reception signal. The signal is output to the microwave demodulator 44 in the card 4. The microwave demodulator 44 detects the received microwave band received signal, demodulates it at a rate of 2 Mb / s into a command code “E”, and outputs it to the processor 27 in the card 4. The processor 27 in the card 4 reads the instruction code "A" and reads a 100-byte personal information code "F" from a predetermined address "b" in the memory 28 in the card 4 according to the instruction.

The processor 27 in the card 4 further outputs the read personal information code "F" to the microwave modulator 43 in the card 4 at a transmission speed of 2 Mb / s. The microwave modulator 43 modulates the 100-byte personal information code “F” output from the processor 27 in the card 4, and converts it into a 2 GHz modulated signal.
Output to the microwave transmitting / receiving antenna 42 in the inside. The microwave transmitting / receiving antenna 42 transmits the modulated signal as a transmission signal from the card 4 to the first reader / writer 5 at 2 GHz to the first reader / writer 5 which is several tens of cm away from the card 4.

When the microwave transmitting / receiving antenna 38 in the first reader / writer 5 receives the 2 GHz radio wave transmitted from the microwave transmitting / receiving antenna 42 in the card 4, it converts it into a reception signal. First reader / writer 5
To the RF circuit 37 for microwaves. The microwave RF circuit 37 detects the input microwave band reception signal, converts it into a 2 Mb / s baseband signal, and
To the microwave demodulator 36 in the reader / writer 5. The microwave demodulator 36 demodulates the baseband signal converted by the microwave RF circuit 37 into a personal information code “F” (100 bytes) at a speed of 2 Mb / s, and Is output to the processor 18. The processor 18 in the first reader / writer 5 reads the personal information code "F" and sends it to the control device 48.
Output to The control device 48 reads personal information from the processor 18 in the first reader / writer 5, selects information necessary for display, and outputs it to the display device 49.

Similarly, power is supplied from another second writer 8 to the card 4. The second reader / writer 7 transmits a matching code “C”, a mismatching code “D”, or a personal information code “F” obtained by supplying power to the card 4 and transmitting and receiving data to the control device 48.
The control device 48 outputs from the second reader / writer 7,
Counting the number of match codes “C” and mismatch codes “D”;
Further, the personal information is read.

The control device 48 calculates the mismatch code “D”
When the number exceeds a certain value, a control signal “G” for stopping transmission of the power signal is transmitted to the first writer 6 and the second writer 8. The control device 48 further outputs the numbers of the matching codes “C” and the mismatching codes “D” to the display device 49 for each unit time. Further, necessary information among the personal information is selected and output to the display device 49. Display device 4
9 displays the information sent from the control device 48. As a result, a plurality of reader / writers (the first reader / writer 5 and the second reader / writer 7) manage the number of coincidences / mismatches of ID numbers read from the card 4 and the contents of personal information by the control device 48, and provide necessary information. Is displayed on the display device 49 so that a plurality of reader / writers 5 and 7 in the facility are displayed.
The information which can be read by is collectively grasped.

As described above, according to the fifth embodiment, it is possible to collectively manage and comprehend information that can be read by a plurality of reader / writers 5 and 7 in a facility. , 8 can be adjusted, and the effect of realizing an efficient wireless card system can be obtained.

Embodiment 6 FIG. FIG. 10 is a block diagram showing a wireless card system according to Embodiment 6 of the present invention. The corresponding parts are denoted by the same reference numerals as in Embodiment 1 shown in FIG. In the figure,
Numeral 48 denotes a control device for controlling the operations of the reader / writer 2 and the writer 3 and for processing the information obtained from the processor 18 of the reader / writer 2, which is the fifth embodiment shown in FIG. Is equivalent to that in. Reference numeral 50 denotes application software executed by the control device 48. The wireless card system according to the sixth embodiment differs from the first embodiment shown in FIG. 1 in that the wireless card system includes a control device 48 that executes application software 50.

Next, the operation will be described. Note that FIG.
FIG. 14 is an explanatory diagram showing a signal flow in a wireless card system according to Embodiment 6 of the present invention. The operation will be described below with reference to FIG. In FIG. 11, a power supply circuit 11 in the writer 3 generates power to be supplied to the card 1 and outputs the power to the short-wave power modulator 12 in the writer 3. The short-wave power modulator 12 modulates the power generated by the power supply circuit 11 and generates a short-wave band power signal in the power transmitting antenna 1 in the writer 3.
Output to 3. The power transmitting antenna 13 transmits the short-wave band power signal to the card 1. The power receiving antenna 14 in the card 1 receives the power signal transmitted from the writer 3 and transmits it to the short-wave power circuit 1 in the card 1.
5 is output. The short-wave power supply circuit 15 rectifies the input power signal, and the antenna 39 and the modulator 4 in the card 1 are rectified.
0, demodulator 41, antenna 42, modulator 43, demodulator 4
4, and drive power to the processor 27 and the memory 28.

The control device 48 is the application software 5
0, and if the application software 50 is software for checking the ID number of the card 1 (software for transmitting / receiving short-wave band data), a 10-byte instruction code “A” for checking the ID number of the card 1 To the processor 18 in the reader / writer 2. Note that data transmission / reception between the reader / writer 2 and the card 1 is performed only during a period in which power is supplied to the card 1 from the power supply circuit 11 in the writer 3. The processor 18 in the reader / writer 2 converts the 10-byte instruction code “A” into 20
The signal is output to the short-wave modulator 31 in the reader / writer 2 at a transmission rate of 0 Kb / s. The short-wave modulator 31 modulates the input command code “A” and outputs it to the short-wave RF circuit 33 in the reader / writer 2 as a 10-MHz modulated signal. The short-wave RF circuit 33 amplifies the input modulation signal and outputs it to the short-wave transmission / reception antenna 34 in the reader / writer 2. The short-wave transmission / reception antenna 34 uses the 10-MHz modulated signal amplified by the short-wave RF circuit 33 as a transmission signal from the reader / writer 2 to the card 1, and transmits a 10-cm signal from the reader / writer 2 to the card 1.
It is transmitted as airwaves to the card 1 at a distance.

The antenna 39 for transmitting and receiving short waves in the card 1
Receives a 10 MHz radio wave transmitted from the short wave transmitting / receiving antenna 34 in the reader / writer 2,
The signal is converted into a received signal of MHz and output to the demodulator 41 for short waves in the card 1. The short wave demodulator 41 receives the input 1
The received signal of 0 MHz is detected, demodulated to a command code “A” (10 bytes) having a transmission rate of 200 Kb / s, and output to the processor 27 in the card 1. The processor 27 in the card 1 reads the input instruction code “A”,
In accordance with the instruction, a 10-byte ID number "B" is read from a predetermined address "b" of the memory 28 in the card 1.

The processor 27 in the card 1 further transmits the read ID number “B” (10 bytes) to 200K.
The signal is output to the modulator 40 for short-wave in the card 1 at a transmission rate of b / s. The short-wave modulator 40 modulates the ID number “B” output from the processor 27 in the card 1 and
The modulated signal of 0 MHz is output to the short-wave transmitting / receiving antenna 39 in the card 1. Antenna 39 for transmitting and receiving short waves
Transmits the modulated signal of 10 MHz as a transmission signal from the card 1 to the reader / writer 2 to the reader / writer 2 about 10 cm away from the card 1 as radio waves in the air.

The short-wave transmitting / receiving antenna 34 in the reader / writer 2 receives the radio wave transmitted from the short-wave transmitting / receiving antenna 39 in the card 1, converts the received radio wave into a reception signal, and converts the received signal into a short-wave signal in the reader / writer 2. Output to the RF circuit 33.
The short-wave RF circuit 33 detects the input 10-MHz reception signal, converts it into a 200 Kb / s baseband signal, and outputs it to the short-wave demodulator 32 in the reader / writer 2. The short-wave demodulator 32 demodulates the input baseband signal into an ID number “B” and outputs it to the processor 18 in the reader / writer 2. The processor 18 in the reader / writer 2 reads the ID number “B”, and
The memory 19 in the reader / writer 2 determines whether or not it is a D number.
Refer to and confirm. If there is a match number as a result of the reference, a match code “C” is output to the communication interface 17. In the case of a mismatch, a mismatch code “D” is output to the control device 48.

On the other hand, in order to read the 100-byte personal information code “F” in the card 1, the power supply circuit 11 in the writer 3 generates power to be supplied to the card 1 and Output to the power supply modulator 12. The shortwave power modulator 12 modulates the power generated by the power supply circuit 11 and outputs the modulated power to the power signal transmission antenna 13 in the writer 3 as a shortwave band power signal. The power signal transmitting antenna 13 transmits the power signal in the short wave band to the card 1.
Send to Antenna 1 for receiving power signal in card 1
4 receives the power signal transmitted from the writer 3 and outputs it to the short-wave power supply circuit 15 in the card 1. The short-wave power supply circuit 15 rectifies the input power signal to form an antenna 39, a modulator 40, a demodulator 41, and an antenna 4 in the card 1.
2, modulator 43, demodulator 44, and processor 27,
The driving power is supplied to the memory 28.

The control device 48 is the application software 5
0, and if the application software 50 is software for reading a personal information code from the card 1 (software for transmitting and receiving data in the microwave band), a 10-byte data for reading the personal information code “F” from the card 1 The instruction code “E” is output to the processor 18 in the reader / writer 2. The processor 18 in the reader / writer 2 outputs the input instruction code “E” to the microwave modulator 35 in the reader / writer 2 at a transmission speed of 2 Mb / s. The microwave modulator 35 modulates the command code “E” into a modulation signal of 2 GHz and outputs the modulated signal to the microwave RF circuit 37 in the reader / writer 2. The microwave RF circuit 37 amplifies the input 2 GHz modulated signal and outputs the amplified signal to the microwave transmitting / receiving antenna 38 in the reader / writer 2. The microwave transmitting / receiving antenna 38 uses the modulated signal amplified by the microwave RF circuit 37 as a transmission signal from the reader / writer 2 to the card 1 and transmits the modulated signal to the card 1 by several tens of cm.
The message is transmitted to the remote card 1.

When the microwave transmitting / receiving antenna 42 in the card 1 receives the radio wave transmitted from the microwave transmitting / receiving antenna 38 in the reader / writer 2, it receives the radio wave.
The signal is converted into a reception signal of GHz and output to the microwave demodulator 44 in the card 1. The microwave demodulator 44 detects the input microwave reception signal, and detects 2 Mb / s.
And demodulates it into the code of the instruction code "E" at the speed described above and outputs it to the processor 27 in the card 1. Processor 2 in card 1
7 reads the input instruction code "A", and in accordance with the instruction, a predetermined address "b" of the memory 28 in the card 1 is read.
A 100-byte personal information code "F" is read.

The processor 27 in the card 1 further transfers the read 100-byte personal information code “F” to the
The signal is output to the microwave modulator 43 in the card 1 at a transmission rate of Mb / s. The microwave modulator 43 modulates the personal information code “F” input from the processor 27 in the card 1 and converts the personal information code “F” into a modulated signal of 2 GHz.
Output to the microwave transmitting / receiving antenna 42 in the inside. The antenna 42 for microwave transmission and reception uses the modulated signal as a transmission signal from the card 1 to the reader / writer 2,
2GHz toward reader / writer 2 several tens of cm away from
To send.

When the microwave transmitting / receiving antenna 38 in the reader / writer 2 receives the 2 GHz radio wave transmitted from the microwave transmitting / receiving antenna 42 in the card 1,
The signal is converted into a reception signal and output to the microwave RF circuit 37 in the reader / writer 2. RF circuit for microwave 3
7 detects the received signal in the microwave band and detects 2M
The signal is converted into a baseband signal of b / s and output to the microwave demodulator 36 in the reader / writer 2. The microwave demodulator 36 demodulates the input baseband signal into a personal information code “F” at a speed of 2 Mb / s, and
Is output to the processor 18 in the system. The processor 18 in the reader / writer 2 reads this 100-byte personal information code “F” and outputs it to the control device 48.

As described above, according to the sixth embodiment, the frequency band of data transmitted and received between the reader / writer 2 and one card 1 can be changed only by changing the application software 50 for operating the control device 48. Can be automatically switched, and an effect that an efficient wireless card system can be realized is obtained.

Embodiment 7 FIG. FIG. 12 is a block diagram showing a wireless card system according to Embodiment 7 of the present invention. The corresponding parts are denoted by the same reference numerals as those in Embodiment 1 shown in FIG. 1, and description thereof will be omitted. The reader / writer 2 according to the seventh embodiment includes a short-wave demodulator 32 for demodulating a short-wave band reception signal received by the short-wave transmission / reception antenna 34 into data, and data transmitted from the reader / writer 2 to the card 1. It has only a microwave modulator 35 for modulating a modulation signal in the microwave band, does not have a short wave modulator 31 and a microwave demodulator 36, and the card 1 is transmitted from the card 1 to the reader / writer 2. Only a short wave modulator 40 for modulating a code to be transmitted to a short wave modulation signal, and a microwave demodulator 44 for demodulating a microwave band reception signal received by a microwave transmission / reception antenna 42 into data. Having a demodulator 41 for shortwave
And a modulator 43 for microwaves is not provided.

Therefore, in the seventh embodiment, the microwave modulator 35 in the reader / writer 2 and the microwave RF
A circuit 37, a microwave transmitting / receiving antenna 38, a microwave transmitting / receiving antenna 42 in the card 1, a microwave demodulator 44, a short wave modulator 40 in the card 1, and a short wave transmitting / receiving antenna 39 And reader / writer 2
Antenna 34 for shortwave transmission and RF circuit 3 for shortwave
3. A data transmission system for transmitting data from the reader / writer 2 to the card 1 using the microwave band and transmitting data from the card 1 to the reader / writer 2 using the short wave band by the short wave demodulator 32 is formed. are doing.

As described above, in the wireless card system according to the seventh embodiment, the card 1
The first embodiment is different from the first embodiment shown in FIG. 1 in that transmission to the card 1 is performed only in the microwave band, and transmission from the card 1 to the reader / writer 2 is performed only in the short wave band.

Next, the operation will be described. Here, FIG.
FIG. 3 is an explanatory diagram showing a signal flow in the wireless card system according to Embodiment 7 of the present invention. Less than,
The operation will be described with reference to FIG.
In FIG. 13, a power supply circuit 11 in the writer 3 generates power to be supplied to the card 1 to write a 100-byte encryption code “H” in the card 1, and generates a short-wave power modulator in the writer 3. 12 is output. The short-wave power modulator 12 modulates the power generated by the power supply circuit 11,
The signal is output to the power signal transmitting antenna 13 in the writer 3 as a power signal in a short wave band. The power signal transmitting antenna 13 transmits the short-wave band power signal to the card 1. The power signal receiving antenna 14 in the card 1 receives the power signal transmitted by the writer 3 and outputs the power signal to the short-wave power supply circuit 15 in the card 1. The short-wave power supply circuit 15 rectifies the input power signal and outputs the rectified power signal to the antenna 3 in the card 1.
9, modulator 40, antenna 42, and processor 2
7. Supply drive power to the memory 28.

When the writer 3 is transmitting the power generated by the power supply circuit 11 as a power signal, the communication interface 17
Transmits the 100-byte encryption code “H” to the reader / writer 2
Is output to the processor 18 in the system. The processor 18 in the reader / writer 2 outputs the encryption code “H” to the microwave modulator 35 in the reader / writer 2 at a transmission speed of 2 Mb / s. The microwave modulator 35 modulates the input encryption code “H” into a signal of 2 GHz and outputs it to the microwave RF circuit 37 in the reader / writer 2 as a modulated signal. The microwave RF circuit 37 receives the input 2G
It amplifies the modulation signal of Hz and outputs it to a microwave transmitting / receiving antenna 38 in the reader / writer 2. The microwave transmitting / receiving antenna 38 transmits the modulated signal amplified by the microwave RF circuit 37 as a transmission signal from the reader / writer 2 to the card 1 toward the card 1 several tens of centimeters away from the reader / writer 2.

When the microwave transmitting / receiving antenna 42 in the card 1 receives the radio wave transmitted from the microwave transmitting / receiving antenna 38 in the reader / writer 2, it transmits it to 2G.
The received signal is converted to a received signal in Hz and output to a demodulator 44 for microwaves in the card 1. The microwave demodulator 44 detects the received microwave signal, demodulates the signal into an encryption code “H” at a rate of 2 Mb / s, and outputs the code to the processor 27 in the card 1. Processor 2 in card 1
7 reads the 100-byte encryption code “H” and writes it at a predetermined address “c” of the memory 28 in the card 1.

When the writing of the 100-byte encryption code "H" is completed, the processor 27 in the card 1 outputs the end code "I" to the short wave modulator 40 in the card 1 at a transmission speed of 200 Kb / s. . The short-wave modulator 40 modulates the end code "I" output from the processor 27 in the card 1 and converts the end code "I" into a modulated signal of 10 MHz.
Output to the short-wave transmission / reception antenna 39 inside. The short-wave transmitting / receiving antenna 39 uses the 10 MHz modulated signal as a transmission signal from the card 1 to the reader / writer 2,
Is transmitted as airwaves to the reader / writer 2 about 10 cm away from the air.

The short-wave transmitting / receiving antenna 34 in the reader / writer 2 receives the radio wave transmitted from the short-wave transmitting / receiving antenna 39 in the card 1, converts the received radio wave into a reception signal, and converts the received signal into a short-wave signal in the reader / writer 2. Output to the RF circuit 33.
The short-wave RF circuit 33 detects the input 10-MHz reception signal, converts it into a 200 Kb / s baseband signal, and outputs it to the short-wave demodulator 41 in the reader / writer 2. The short-wave demodulator 41 demodulates the baseband signal converted by the short-wave RF circuit 33 into an end code “I” and outputs it to the processor 18 in the reader / writer 2. The processor 18 in the reader / writer 2 has its end code "I"
Is read and output to the communication interface 17. Thus, the high-speed writing of the encryption code “H” (100 bytes) to the card 1 is completed.

As described above, according to the seventh embodiment, when data needs to be written into the card 1 at high speed, the microwave band is used for data transmission from the reader / writer 2 to the card 1. By using this, the writing time can be reduced, and an efficient wireless card system can be realized. In addition, only during the period when power is supplied from the writer 3 to the card 1, the card is used. Since data is written in the card 1, it is not necessary to provide a secondary battery in the card 1, and the card 1 can be reduced in cost and weight.

Embodiment 8 FIG. FIG. 14 is a block diagram showing a wireless card system according to an eighth embodiment of the present invention. The corresponding parts are denoted by the same reference numerals as those of the seventh embodiment shown in FIG. 12, and description thereof will be omitted. The wireless card system according to the eighth embodiment is different from the wireless card system shown in FIG.
The third embodiment differs from the seventh embodiment in that the writer 3 includes the detector 46 and the detection antenna 47 described in the fourth embodiment.

Next, the operation will be described. Here, FIG.
FIG. 5 is an explanatory diagram showing a signal flow in the wireless card system according to Embodiment 8 of the present invention. Less than,
The operation will be described with reference to FIG.
In FIG. 15, a detector 46 in the writer 3 transmits a signal for detecting the card 1 at regular time intervals. The presence of the card 1 is detected via the antenna 47. The detecting operation of the card 1 is the same as that of the third embodiment.

As described above, in a state where the detector 46 in the writer 3 detects that the card 1 has entered the data transmission / reception range, the power supply circuit 11 in the writer 3
In order to write a 100-byte encryption code “H” in the card 1, power to be supplied to the card 1 is generated and the writer 3
Output to the short-wave power modulator 12 within. The short-wave power modulator 12 modulates the power generated by the power supply circuit 11 and outputs it to the power signal transmitting antenna 13 in the writer 3 as a short-wave band power signal. The power signal transmitting antenna 13 transmits the short-wave band power signal to the card 1. The power signal receiving antenna 14 in the card 1 receives the short-wave band power signal and outputs it to the short-wave power supply circuit 15 in the card 1. The short-wave power supply circuit 15 rectifies the input power signal, and the antenna 39, the modulator 40, the antenna 42, the demodulator 44, and the processor 2 in the card 1
7. Supply drive power to the memory 28.

Thereafter, as in the case of the seventh embodiment, while the writer 3 is transmitting the power generated by the power supply circuit 11 as a power signal, the communication interface 17 transmits the 100-byte encryption code “H” to the reader / writer 2. Processor 18 in
Output to The processor 18 in the reader / writer 2 outputs the encryption code “H” to the microwave modulator 35 in the reader / writer 2 at a transmission speed of 2 Mb / s. The microwave modulator 35 converts the input encryption code “H” to 2 GHz.
The signal is modulated into a signal z and output to the microwave RF circuit 37 in the reader / writer 2 as a modulated signal. R for microwave
The F circuit 37 amplifies the input 2 GHz modulated signal, and transmits and receives a microwave transmitting / receiving antenna 38 in the reader / writer 2.
Output to The microwave transmitting / receiving antenna 38 transmits the received modulated signal as a transmission signal from the reader / writer 2 to the card 1 toward the card 1 several tens of centimeters away from the reader / writer 2.

When the microwave transmitting / receiving antenna 42 in the card 1 receives the radio wave transmitted from the microwave transmitting / receiving antenna 38 in the reader / writer 2, it transmits it to 2G.
The received signal is converted to a received signal in Hz and output to a demodulator 44 for microwaves in the card 1. The microwave demodulator 44 detects the received signal in the microwave band, demodulates the signal into an encryption code “H” at a rate of 2 Mb / s, and outputs the code to the processor 27 in the card 1. The processor 27 in the card 1 reads the encryption code “H” (100 bytes) and writes it to a predetermined address “c” of the memory 28 in the card 1.

When the writing is completed, the processor 27 in the card 1 sets the end code “I” (10 bytes) to 200K.
The signal is output to the modulator 40 for short-wave in the card 1 at a transmission rate of b / s. The short-wave modulator 40 modulates the end code “I” output from the processor 27 in the card 1 and
The modulated signal of 0 MHz is output to the short-wave transmitting / receiving antenna 39 in the card 1. Antenna 39 for transmitting and receiving short waves
Transmits the modulated signal of 10 MHz as a transmission signal from the card 1 to the reader / writer 2 to the reader / writer 2 about 10 cm away from the card 1 as radio waves in the air.

The short-wave transmission / reception antenna 34 in the reader / writer 2 receives the radio wave transmitted from the short-wave transmission / reception antenna 39 in the card 1, converts it into a reception signal, and Output to the RF circuit 33.
The short-wave RF circuit 33 detects the received signal of 10 MHz, converts it into a 200 Kb / s baseband signal, and inputs the baseband signal to the short-wave demodulator 32 in the reader / writer 2. The short-wave demodulator 32 demodulates the baseband signal into an end code “I” and outputs the demodulated signal to the processor 18 in the reader / writer 2.
The processor 18 in the reader / writer 2 reads the input end code “I” and outputs it to the communication interface 17.

As described above, according to the eighth embodiment, in applications that require high-speed writing of data in the card 1, the microwave band is used for data transmission from the reader / writer 2 to the card 1. By using this, it is possible to reduce the writing time and to save the power supply to the card 1, and it is possible to obtain an effect of realizing an efficient wireless card system with less power loss. .

Embodiment 9 FIG. FIG. 16 is a block diagram showing a wireless card system according to a ninth embodiment of the present invention. The corresponding parts are denoted by the same reference numerals as those of the fifth embodiment shown in FIG. Note that the first (second) reader / writer 5 according to the ninth embodiment
(7) is a short wave demodulator 32 for demodulating a short wave band received signal received by the short wave transmitting / receiving antenna 34 into data, and the first (second) reader / writer 5 (7) to the card 4
Has only a microwave modulator 35 for modulating data to be transmitted to a microwave band signal, and does not have the short wave modulator 31 and the microwave demodulator 36, and the card 4
Is a short-wave modulator 40 for modulating a code transmitted from the card 4 to the first (second) reader / writer 5 (7) into a short-wave band signal, and a microwave band received by a microwave transmitting / receiving antenna 42. Has only a microwave demodulator 44 for demodulating the received signal into data, and a short-wave demodulator 41
And a modulator 43 for microwaves is not provided.

As described above, in the wireless card system according to the ninth embodiment, the transmission from the first (second) reader / writer 5 (7) to the card 4 is performed only in the microwave band, and the transmission from the card 4 to the first (Second) reader / writer 5 (7)
Embodiment 5 is different from Embodiment 5 shown in FIG. 8 in that transmission to

Next, the operation will be described. Here, FIG.
FIG. 7 is an explanatory diagram showing a signal flow in the wireless card system according to Embodiment 9 of the present invention. Less than,
The operation will be described with reference to FIG.
In FIG. 17, the power supply circuit 11 in the first writer 6
Generates power to be supplied to the card 4 to write a 100-byte encryption code “H” in the card 4 and
To the short-wave power modulator 12 in the writer 6. The short-wave power modulator 12 modulates the power generated by the power supply circuit 11 in the first writer 6 and outputs the modulated power as a short-wave band power signal to the power signal transmitting antenna 13 in the first writer 6. . The power signal transmitting antenna 13 transmits the power signal in the short-wave band to the card 4. Card 4
The power signal receiving antenna 14 in the inside receives the transmitted power signal and outputs it to the short-wave power supply circuit 15 in the card 4. The short-wave power supply circuit 15 rectifies the power signal,
Antenna 39, modulator 40, antenna 4 in card 4
2, supplying drive power to the demodulator 44, the processor 27, and the memory 28.

While the first writer 6 is transmitting the power generated by the power supply circuit 11 to the card 4 as a power signal, the control device 48 transmits the 100-byte encryption code “H” to the processor in the first reader / writer 5. 18 is output. The first
The data transmission / reception between the reader / writer 5 and the card 4 is performed only during a period in which power is supplied to the card 4. The processor 18 in the first reader / writer 5 outputs the encryption code “H” to the microwave modulator 35 in the first reader / writer 5 at a transmission rate of 2 Mb / s. The microwave modulator 35 modulates the encryption code “H” into a signal of 2 GHz and outputs the modulated code to the microwave RF circuit 37 in the first reader / writer 5 as a modulated signal. The microwave RF circuit 37 amplifies the input 2 GHz modulated signal and outputs the amplified signal to the microwave transmitting / receiving antenna 38 in the first reader / writer 5. The microwave transmitting / receiving antenna 38 uses the modulated signal amplified by the microwave RH circuit 37 as a transmission signal from the first reader / writer 5 to the card 4 and transmits the modulated signal from the first reader / writer 5 to several tens c.
The message is transmitted to the card 4 m away.

When the microwave transmitting / receiving antenna 42 in the card 4 receives the radio wave transmitted from the microwave transmitting / receiving antenna 38 in the first reader / writer 5, it converts it into a 2 GHz reception signal. The signal is output to the microwave demodulator 44 in the card 4. The microwave demodulator 44 detects the input microwave reception signal,
At a transmission rate of b / s, the code is demodulated into a code (100 bytes) of an encryption code “H” and output to the processor 27 in the card 4. The processor 27 in the card 4 reads the encryption code “H” and writes it to a predetermined address “c” in the memory 28 in the card 4.

When the writing of the 100-byte encryption code "H" is completed, the processor 27 in the card 4 sends the 10-byte end code "I" to the short-wave modulator 40 in the card 4 at a transmission speed of 200 Kb / s. Output to The short-wave modulator 40 modulates the end code “I” output from the processor 27 in the card 4 and outputs it to the short-wave transmitting / receiving antenna 39 in the card 4 as a 10 MHz modulated signal.
The short-wave transmission / reception antenna 39 transmits the modulated signal of 10 MHz as a transmission signal from the card 4 to the first reader / writer 5 to the first reader / writer 5 distant from the card 4 by about 10 cm as airwaves. .

When the short-wave transmission / reception antenna 34 in the first reader / writer 5 receives the radio wave transmitted from the short-wave transmission / reception antenna 39 in the card 4, the radio wave is converted into a reception signal and converted into a first reader. RF circuit 33 for short wave in writer 5
Output to The short-wave RF circuit 33 detects the received signal of 10 MHz, converts the signal to a baseband signal of 200 Kb / s, and inputs the baseband signal to the short-wave demodulator 32 in the first reader / writer 5. The short-wave demodulator 32 demodulates the signal converted by the short-wave RF circuit 33 in the first reader / writer 5 into an end signal “I” and outputs the signal to the processor 18 in the first reader / writer 5. The processor 18 in the first reader / writer 5 reads the end code “I” and outputs it to the control device 48.

Similarly, power is supplied from another second writer 8 to the card 4. The second reader / writer 7 transmits the encryption code “H” (100 bytes) to the card 4 in the microwave band during the period when power is supplied to the card 4, and outputs the end code in the short-wave band from the card 4. When receiving "I" (10 bytes), it outputs it to the control device 48.

The control unit 48 determines the number of coincidence codes output from the processor 18 in the first reader / writer 5 and the second reader / writer 7 as in the case of the fifth embodiment shown in FIG. It also counts the number of mismatch codes or reads personal information. When the number of mismatch codes exceeds a certain value, a control signal for stopping transmission of the power signal is transmitted to first writer 6 and second writer 8. The control device 48 further outputs the number of matches to the display device 49 for each unit time. Further, necessary information is selected from the personal information and output to the display device 49. The display device 49 displays the information sent from the control device 48. Thus, the plurality of reader / writers 5, 7
The number of matches / mismatches of the ID numbers read from the card 4 and the contents of the personal information are managed by the control device 48, and necessary information is displayed on the display device 49, so that the information can be read by a plurality of reader / writers 5 and 7 in the facility. Information can be grasped collectively.

As described above, according to the ninth embodiment, in applications that require high-speed writing of data in the card 4, data transmission from the plurality of reader / writers 5, 7 to the card 4 By using the microwave band, the writing time can be reduced, and information that can be read by a plurality of reader / writers 5 and 7 in the facility can be collectively managed and grasped. It is possible to adjust functions such as stopping the supply of electric power from the power supply units 6 and 8, and it is possible to obtain an effect of realizing a wireless card system with high efficiency and low power loss that can overlook the entire facility.

Embodiment 10 FIG. FIG. 18 is a block diagram showing a wireless card system according to Embodiment 10 of the present invention. The corresponding parts are denoted by the same reference numerals as those in Embodiment 1 shown in FIG. 1, and description thereof will be omitted. The reader / writer 2 according to the tenth embodiment includes a short-wave modulator 31 for modulating data transmitted from the reader / writer 2 to the card 1 into a short-wave band signal, and a micro-wave signal received by a microwave transmitting / receiving antenna 38. It has only a microwave demodulator 36 for demodulating a reception signal in a waveband into data, but does not have a short wave demodulator 32 and a microwave modulator 35.
, A microwave modulator 43 for modulating a code to be transmitted to a microwave band signal, and a short wave demodulator 41 for demodulating a short wave band received signal received by the antenna 39 into data.
And a demodulator 44 for microwaves and a modulator 40 for short waves are not provided.

Therefore, in the tenth embodiment, the short-wave modulator 31, the short-wave RF circuit 33 in the reader / writer 2,
A short wave transmitting / receiving antenna 34, a short wave transmitting / receiving antenna 39 in the card 1, a short wave demodulator 41, a microwave modulator 43 in the card 1, a microwave transmitting / receiving antenna 42, a reader / writer 2 The data transmission from the reader / writer 2 to the card 1 is performed using the short wave band by the microwave transmitting / receiving antenna 38, the microwave RF circuit 37, and the microwave demodulator 36, and from the card 1 to the reader / writer 2. A data transmission system for performing the data transmission using the microwave band is formed.

As described above, in the wireless card system according to the tenth embodiment, transmission from reader / writer 2 to card 1 is performed only in the short-wave band, and transmission from card 1 to reader / writer 2 is performed only in the microwave band. In that
This is different from the first embodiment shown in FIG.

Next, the operation will be described. Here, FIG.
9 is an explanatory diagram showing a signal flow in the wireless card system according to Embodiment 10 of the present invention. Hereinafter, the operation will be described with reference to FIG. In FIG. 19, in order to read the 100-byte personal information code “F” in the card 1, the power supply circuit 11 in the writer 3 generates electric power to be supplied to the card 1 and supplies a short-wave power in the writer 3. Output to the modulator 12. The shortwave power modulator 12 modulates the power generated by the power supply circuit 11 and outputs the modulated power to the power signal transmission antenna 13 in the writer 3 as a shortwave band power signal. The power signal transmitting antenna 13 transmits the short-wave band power signal to the card 1. The power signal receiving antenna 14 in the card 1 receives the transmitted power signal and outputs it to the short-wave power supply circuit 15 in the card 1. The short-wave power supply circuit 15 rectifies the input power signal and supplies driving power to the antenna 39, the demodulator 41, the antenna 42, the demodulator 43, the processor 27, and the memory 28 in the card 1.

While the writer 3 is transmitting the power generated by the power supply circuit 11 to the card 1 as a power signal, the communication interface 17 transmits the command code “E” (10) for acquiring the personal information code “F” from the card 1. Byte) is output to the processor 18 in the reader / writer 2. The transmission and reception of data between the reader / writer 2 and the card 1 is performed only during a period in which power is supplied from the writer 3 to the card 1. The processor 18 in the reader / writer 2 outputs the 10-byte command code “E” input from the communication interface 17 to the short-wave modulator 31 in the reader / writer 2 at a transmission speed of 200 Kb / s. The short-wave modulator 31 modulates the command code “E” and outputs it to the short-wave RF circuit 33 in the reader / writer 2 as a 10-MHz modulated signal. The short-wave RF circuit 33 amplifies the input modulation signal, and outputs the short-wave transmission / reception antenna 3 in the reader / writer 2.
4 is output. The short wave transmitting / receiving antenna 34 converts the 10 MHz modulated signal amplified by the short wave RF circuit 33 into
As a transmission signal from the reader / writer 2 to the card 1, the signal is transmitted as airwaves to the card 1 at a distance of about 10 cm from the reader / writer 2 in the air.

The antenna 39 for transmitting and receiving short waves in the card 1
Receives a 10 MHz radio wave transmitted from the short wave transmitting / receiving antenna 34 in the reader / writer 2,
The signal is converted into a received signal of MHz and output to the demodulator 41 for short waves in the card 1. The short wave demodulator 41 receives the input 1
The received signal of 0 MHz is detected, demodulated to the code (10 bytes) of the command code “E” having a transmission speed of 200 Kb / s, and output to the processor 27 in the card 1. The processor 27 in the card 1 reads the instruction code "E", and reads a 100-byte personal information code "F" from a predetermined address "b" in the memory 28 in the card 1 according to the instruction.

The processor 27 in the card 1 further outputs the read personal information code "F" to the microwave modulator 43 in the card 1 at a transmission speed of 2 Mb / s. The microwave modulator 43 modulates the personal information code “F” output from the processor 27 in the card 1 and outputs it to the microwave transmitting / receiving antenna 42 in the card 1 as a 2 GHz modulated signal. The antenna 42 for microwave transmission and reception receives the modulated signal as a transmission signal from the card 1 to the reader / writer 2,
The signal is transmitted at 2 GHz to the reader / writer 2 separated by 0 cm.

When the microwave transmitting / receiving antenna 38 in the reader / writer 2 receives the 2 GHz radio wave transmitted from the microwave transmitting / receiving antenna 42 in the card 1, it converts it into a reception signal and converts it into a reception signal. To the RF circuit 37 for microwaves. The microwave RF circuit 37 detects the received signal in the microwave band, and detects 2 Mb
/ S baseband signal and input to the microwave demodulator 36 in the reader / writer 2. The microwave demodulator 36 demodulates the signal converted by the microwave RF circuit 37 into a personal information code “F” at a speed of 2 Mb / s, and outputs it to the processor 18 in the reader / writer 2. The processor 18 in the reader / writer 2 receives the input 1
It reads the 00-byte personal information code “F” and outputs it to the communication interface 17. The transmission of the 100-byte personal information code “F” from the card 1 to the reader / writer 2 requires 400 μs.

As described above, according to the tenth embodiment, when data needs to be read from the card 1 at high speed, the microwave band is used for data transmission from the card 1 to the reader / writer 2. By using it, it is possible to reduce the reading time, and it is possible to realize an efficient wireless card system,
In addition, since the reading of data from the card 1 is performed only during the period when power is supplied to the card 1 from the writer 3, it is not necessary to provide a secondary battery in the card 1, and the card 1 is inexpensive. In addition, effects such as reduction in weight and weight can be obtained.

Embodiment 11 FIG. FIG. 20 is a block diagram showing a wireless card system according to Embodiment 11 of the present invention.
The same reference numerals are given to the respective parts of 0, and the description is omitted. The wireless card system according to the eleventh embodiment is different from the wireless card system according to the tenth embodiment in that the writer 3 includes the detector 46 and the detection antenna 47 described in the fourth embodiment shown in FIG. Is different.

Next, the operation will be described. Here, FIG.
FIG. 1 is an explanatory diagram showing a signal flow in a wireless card system according to Embodiment 11 of the present invention. The operation will be described below with reference to FIG. In FIG. 21, a detector 46 in the writer 3 transmits a signal for detecting the card 1 at a fixed time interval, and when the card 1 enters a data transmission / reception range, a detection antenna 47 in the writer 3 is used. To detect that the card 1 is present. At this time, the power supply circuit 11 in the writer 3 generates power to be supplied to the card 1 and outputs it to the short-wave power modulator 12 in the writer 3. The short-wave power modulator 12 modulates the power generated by the power supply circuit 11 and outputs the modulated power to the power signal transmission antenna 13 in the writer 3 as a short-wave band power signal. The power signal transmitting antenna 13 transmits the power signal in the short-wave band to the card 1. The power signal receiving antenna 14 in the card 1 receives the short-wave power signal transmitted from the writer 3 and outputs it to the short-wave power supply circuit 15 in the card 1. The short-wave power supply circuit 15 rectifies the input power signal and supplies drive power to the antenna 39, the demodulator 41, the antenna 42, the demodulator 43, the processor 27, and the memory 28 in the card 1.

While the writer 3 is transmitting the power generated by the power supply circuit 11 to the card 1 as a power signal, the communication interface 17 transmits the command code “E” (10) for acquiring the personal information code “F” from the card 1. Byte) is output to the processor 18 in the reader / writer 2. The transmission and reception of data between the reader / writer 2 and the card 1 are performed only during a period in which power is supplied from the writer 3 to the card 1. The processor 18 in the reader / writer 2 outputs the 10-byte command code "E" from the communication interface 17 to the short-wave modulator 31 in the reader / writer 2 at a transmission speed of 200 Kb / s. The short-wave modulator 31 modulates the input command code “E” and converts it into a 10-MHz modulated signal as a short-wave RF circuit 33 in the reader / writer 2.
Output to The short-wave RF circuit 33 amplifies the received modulated signal and outputs it to the short-wave transmitting / receiving antenna 34 in the reader / writer 2. The short-wave transmitting / receiving antenna 34 uses the amplified 10 MHz modulated signal as a transmission signal from the reader / writer 2 to the card 1 to the reader / writer 2 to 10c.
The signal is transmitted as airwaves to the card 1 about m away from the air.

The antenna 39 for transmitting and receiving short waves in the card 1
Receives a 10 MHz radio wave transmitted from the short wave transmitting / receiving antenna 34 in the reader / writer 2,
The signal is converted into a received signal of MHz and output to the demodulator 41 for short waves in the card 1. The short wave demodulator 41 receives the input 1
The received signal of 0 MHz is detected and demodulated to the code (10 bytes) of the command code “E” at the transmission speed of 200 Kb / s.
Output to the processor 27 in the card 1. The processor 27 in the card 1 reads the instruction code "E", and reads a 100-byte personal information code "F" from a predetermined address "b" in the memory 28 in the card 1 according to the instruction.

The processor 27 in the card 1 further outputs the read personal information code "F" to the microwave modulator 43 in the card 1 at a transmission speed of 2 Mb / s.
The microwave modulator 43 modulates the personal information code "F" output from the processor 27 in the card 1,
The signal is output to the antenna 42 for transmitting and receiving microwaves in the card 1 as a 2 GHz modulated signal. The microwave transmitting / receiving antenna 42 converts the input modulated signal into a signal transmitted from the card 1 to the reader / writer 2,
The signal is transmitted at a frequency of 2 GHz to the reader / writer 2 that is m meters away.

When the microwave transmitting / receiving antenna 38 in the reader / writer 2 receives the 2 GHz radio wave transmitted from the microwave transmitting / receiving antenna 42 in the card 1,
The signal is converted into a reception signal and output to the microwave RF circuit 37 in the reader / writer 2. RF circuit for microwave 3
7 detects the input microwave band reception signal and detects 2M
The signal is converted into a baseband signal of b / s and input to a microwave demodulator 36 in the reader / writer 2. The microwave demodulator 36 demodulates the signal converted by the microwave RF circuit 37 into a 100-byte personal information code "F" at a rate of 2 Mb / s, and outputs the demodulated signal to the processor 18 in the reader / writer 2. I do. The processor 18 in the reader / writer 2 reads the personal information code “F” and outputs it to the communication interface 17. The transmission of the personal information code “F” from the card 1 to the reader / writer 2 requires 4
It takes 00 μs.

As described above, according to the eleventh embodiment, in a case where it is necessary to read high-speed data from the inside of the card 1, the reader / writer 2
By using the microwave band to transmit data to the card 1, the reading time can be reduced, and the power supply to the card 1 can be saved. The effect that the system can be realized is obtained.

Embodiment 12 FIG. FIG. 22 is a block diagram showing a wireless card system according to a twelfth embodiment of the present invention. The corresponding parts are denoted by the same reference numerals as in the fifth embodiment shown in FIG. Note that the first (second) reader / writer 5 (7) in the twelfth embodiment is different from the first (second) reader / writer 5 (7).
And a microwave demodulator 36 for demodulating a microwave signal received by the microwave transmitting / receiving antenna 38 into data. The card 4 does not include the short-wave demodulator 32 and the microwave modulator 35, and the card 4 transmits a code transmitted from the card 4 to the first (second) reader / writer 5 (7) in the microwave band. A microwave demodulator having only a microwave modulator 43 for modulating a signal and a short wave demodulator 41 for demodulating a short wave band received signal received by the short wave transmitting / receiving antenna 39 into data. 44 and a modulator 40 for short wave are not provided.

As described above, in the wireless card system according to the twelfth embodiment, the first (second)
FIG. 8 shows that transmission to the reader / writer 5 (7) is performed only in the microwave band, and transmission from the first (second) reader / writer 5 (7) to the card 1 is performed only in the short-wave band. Is different from the fifth embodiment shown in FIG.

Next, the operation will be described. Here, FIG.
FIG. 3 is an explanatory diagram showing a signal flow in the wireless card system according to Embodiment 12 of the present invention. The operation will be described below with reference to FIG. In FIG. 23, the power supply circuit 11 in the first writer 6 generates power to be supplied to the card 4 to read the 100-byte personal information code "F" in the card 4, and generates a short-wave power modulator. 12 is output. The short-wave power modulator 12 modulates the power generated by the power supply circuit 11 in the first writer 6 and outputs the modulated power as a short-wave band power signal to the power signal transmitting antenna 13 in the first writer 6. . The power signal transmitting antenna 13 transmits the short-wave band power signal to the card 4. The power signal receiving antenna 14 in the card 4 receives the transmitted power signal and outputs it to the short-wave power supply circuit 15 in the card 4. The short-wave power supply circuit 15 rectifies the power signal, and the antenna 39, the demodulator 41, the antenna 42, and the demodulator 4 in the card 4 are provided.
3, and drive power is supplied to the processor 27 and the memory 28.

While the first writer 6 is transmitting the power generated by the power supply circuit 11 to the card 4 as a power signal, the control device 48 issues a 10-byte instruction for acquiring the personal information code “F” from the card 1. The code “E” is output to the processor 18 in the first reader / writer 5. Note that data transmission / reception between the first reader / writer 5 and the card 4 is performed only during a period in which power is supplied to the card 1. The processor 18 in the first reader / writer 5 outputs the instruction code “E” to the short-wave modulator 31 in the first reader / writer 5 at a transmission speed of 200 Kb / s. The short-wave modulator 31 modulates the instruction code “E” and outputs 10 MHz.
RF signal in the first reader / writer 5 as a modulated signal of
Output to the circuit 33. The short-wave RF circuit 33 amplifies the input modulation signal and outputs it to the short-wave transmitting / receiving antenna 34 in the first reader / writer 5. The short-wave transmitting / receiving antenna 34 is a 10M RF signal amplified by the short-wave RF circuit 33.
Hz from the first reader / writer 5 as a transmission signal from the first reader / writer 5 to the card 4.
The signal is transmitted as airwaves to the card 4 at a distance.

An antenna 39 for transmitting and receiving short-waves in the card 4
Receives the radio wave transmitted from the short-wave transmission / reception antenna 34 in the first reader / writer 5,
Of the short wave demodulator 41 in the card 4
Output to The short-wave demodulator 41 receives the input 10 MH
z is detected and demodulated into a command code "E" code (10 bytes) having a transmission rate of 200 Kb / s.
Is output to the processor 27 in the system. The processor 27 in the card 4 reads the instruction code "E", and reads a 100-byte personal information code "F" from a predetermined address "b" in the memory 28 in the card 4 according to the instruction.

The processor 27 in the card 4 further transfers the read 100-byte personal information code “F” to the
The signal is output to the microwave modulator 43 in the card 4 at a transmission rate of Mb / s. The microwave modulator 43 modulates the personal information code “F” output from the processor 27 in the card 4 and outputs it as a 2 GHz modulated signal to the microwave transmitting / receiving antenna 42 in the card 4. The microwave transmitting / receiving antenna 42 transmits the modulated signal of 2 GHz as a transmission signal from the card 4 to the first reader / writer 5 at 2 GHz to the first reader / writer 5 distant from the card 4 by several tens of cm.

When the microwave transmitting / receiving antenna 38 in the first reader / writer 5 receives the radio wave transmitted from the microwave transmitting / receiving antenna 42 in the card 4, it converts it into a received signal and converts the received signal into the first signal. To the microwave RF circuit 37 in the reader / writer 5. The microwave RF circuit 37 detects the received signal of 2 GHz, converts the signal to a baseband signal of 2 Mb / s, and inputs the baseband signal to the microwave demodulator 36 in the first reader / writer 5. The microwave demodulator 36 demodulates the baseband signal converted by the microwave RF circuit 37 into a personal information code “F”, and outputs the personal information code “F” to the processor 18 in the first reader / writer 5. The processor 18 in the first reader / writer 5 reads the 100-byte personal information code "F" and reads
Output to

Similarly, power is supplied from another second writer 8 to the card 4. The card 4 reads the 100-byte personal information code "F" during the period in which the power is supplied, and transmits it to the second reader / writer 7 in the microwave band. 48.

It is to be noted that, similarly to the case of the fifth embodiment shown in FIG. 8, control device 48 controls the number of matching codes output from processor 18 in first reader / writer 5 and second reader / writer 7, Counting the number of mismatch codes or reading personal information. When the number of mismatch codes exceeds a certain value, a control signal for stopping transmission of the power signal is transmitted to first writer 6 and second writer 8. The control device 48 further outputs the number of matches to the display device 49 for each unit time. Further, necessary information is selected from the personal information and output to the display device 49. The display device 49 displays the information sent from the control device 48. Thus, the plurality of reader / writers 5, 7
The number of matches / mismatches of the ID numbers read from the card 4 and the contents of the personal information are managed by the control device 48, and necessary information is displayed on the display device 49, so that the information can be read by a plurality of reader / writers 5 and 7 in the facility. Information can be grasped collectively.

As described above, according to the twelfth embodiment, in applications that require data to be read from the card 4 at high speed, data transmission from the card 4 to each of the reader / writers 5 and 7 is performed. By using the microwave band, the reading time can be reduced, and the information that can be read by a plurality of reader / writers 5 and 7 in the facility can be collectively managed and grasped. It is possible to adjust functions such as stopping the supply of electric power from the power supply units 6 and 8, and it is possible to obtain an effect of realizing a wireless card system with high efficiency and low power loss that can overlook the entire facility.

Embodiment 13 FIG. FIG. 24 is a block diagram showing a wireless card system according to the thirteenth embodiment of the present invention. The corresponding parts are denoted by the same reference numerals as those of the first embodiment shown in FIG. In the figure, 11 is a power supply circuit, 12 is a short-wave power modulator, 1
Reference numeral 3 denotes an antenna for transmitting a short-wave power signal, 14 denotes an antenna for receiving a short-wave power signal, and 15 denotes a short-wave power supply circuit, which are denoted by the same reference numerals in FIG. 1 corresponding to those. Reference numeral 51 denotes a power supply circuit that generates power to be supplied to the card 1 and is equivalent to the power supply circuit 11. Reference numeral 52 denotes a microwave that modulates the power generated by the power supply circuit 51 into a microwave band power signal. The power supply modulator 53 is a microwave band power signal transmitting antenna for transmitting the microwave band power signal. Numeral 54 is a microwave power signal receiving antenna for receiving the microwave power signal transmitted from the microwave power signal transmitting antenna 53, and 55 is a microwave power signal receiving antenna. The microwave power supply circuit rectifies the microwave band power signal received by the antenna 54 for driving the card 1.

The power supply circuit 11, the short-wave power supply modulator 12, the power signal transmitting antenna 13, the power signal receiving antenna 14, and the short-wave power supply circuit 15 cause the writer 3 to send the card 1 to the card 1. A first driving power supply system for supplying the driving power of the card 1 in a short wave band is formed, and a power supply circuit 51, a microwave power modulator 5
Second, the driving power of the card 1 is supplied to the card 1 from the writer 3 to the card 1 in the microwave band by the antenna 53 for transmitting the power signal, the antenna 54 for receiving the power signal, and the microwave power supply circuit 55. A driving power supply system is formed.

Reference numeral 3a includes the power supply circuit 11, a short-wave power modulator 12, and an antenna 13 for transmitting a short-wave power signal, and modulates the power from the power supply circuit 11 into a short-wave power signal. This is a writer for transmitting short waves equivalent to the writer 3 in the first embodiment. 3b is a short-wave writer 3a that includes the power supply circuit 51, the microwave power modulator 12 and the antenna 13, modulates the power from the power supply circuit 51 into a microwave band power signal, and transmits the signal. It is a microwave writer provided separately.

In the thirteenth embodiment, as in the first embodiment, the short-wave modulator 31, the short-wave demodulator 32, the short-wave RF circuit 33, and the short-wave transmission / reception A first data transmission system is formed by the antenna 34, the short-wave transmission / reception antenna 39, the short-wave modulator 40, and the short-wave demodulator 41 in the card 1. A wave modulator 35, a microwave demodulator 36, a microwave RF circuit 37, and a microwave transmitting / receiving antenna 38,
An antenna 42 for transmitting and receiving microwaves, a modulator 43 for microwaves, and a demodulator 4 for microwaves in the card 1
4 form a second data transmission system.

As described above, the thirteenth embodiment employs the short-wave writer 3a and the microwave writer 3b.
This is different from the first embodiment in that power is supplied to the card 1 in a system.

Next, the operation will be described. Here, FIG.
FIG. 5 is an explanatory diagram showing a signal flow in the wireless card system according to Embodiment 13 of the present invention. The operation will be described below with reference to FIG. In FIG. 25, in order to transmit and receive data using the short wave band, the power supply circuit 1 in the short wave writer 3a is used.
1 generates power to be supplied to the card 1 and outputs the power to the short-wave power modulator 12 in the writer 3a. The short-wave power modulator 12 modulates the power generated by the power supply circuit 11 and converts the modulated power into a short-wave power signal.
The signal is output to the antenna 13 for transmitting the power signal in the short-wave band in a. The power signal transmitting antenna 13 transmits the short-wave band power signal to the card 1. The antenna 14 for receiving a short-wave band power signal in the card 1 is connected to the writer 3.
The shortwave power signal transmitted by the shortwave power signal transmitting antenna 13 in a is received and output to the shortwave power supply circuit 15 in the card 1. The short-wave power supply circuit 15 rectifies the input power signal and outputs the rectified power signal to the antenna 3 in the card 1.
9, modulator 40, demodulator 41, and processor 27,
The driving power is supplied to the memory 28.

While the short-wave writer 3a is transmitting the power generated by the power supply circuit 11 to the card 1 as a power signal, the communication interface 17 uses a command code for checking the ID number "B" of the card 1. “A” (10 bytes) is output to the processor 18 in the reader / writer 2.
The transmission and reception of data between the reader / writer 2 and the card 1 in the short-wave band is performed only during a period in which power is supplied to the card 1 from the short-wave writer 3a. The processor 18 in the reader / writer 2 outputs the command code “A” to the short-wave modulator 31 in the reader / writer 2. The short-wave modulator 31 modulates the input instruction code “A” and outputs it to the short-wave RF circuit 33 in the reader / writer 2 as a modulated signal. The short-wave RF circuit 33 amplifies the modulated signal and outputs it to the short-wave transmitting / receiving antenna 34 in the reader / writer 2. The short-wave transmission / reception antenna 34 converts the modulated signal amplified by the short-wave RF circuit 33 into a transmission signal from the reader / writer 2 to the card 1 and outputs the modulated signal to the reader / writer 2.
It is transmitted as airwaves to the card 1 about 10 cm away from the air.

An antenna 39 for transmitting / receiving short-waves in the card 1
Receives the radio wave transmitted from the short-wave transmitting / receiving antenna 34 in the reader / writer 2, converts it into a 10-MHz reception signal, and outputs it to the short-wave demodulator 41 in the card 1. The short-wave demodulator 41 detects the input received signal, demodulates it into a code (10 bytes) of the command code “A” having a transmission rate of 200 Kb / s, and
7 is output. The processor 27 in the card 1 reads the instruction code "A", and in accordance with the instruction, 10 bytes from the predetermined address "a" of the memory 28 in the card 1
Read D number "B".

The processor 27 in the card 1 further outputs the read ID number “B” to the short-wave modulator 40 in the card 1. The short-wave modulator 40 modulates the ID number “B” output from the processor 27 in the card 1, and outputs the modulated signal to the short-wave transmission / reception antenna 39 in the card 1. The short-wave transmission / reception antenna 39 transmits the input modulated signal as a transmission signal from the card 1 to the reader / writer 2 to the reader / writer 2 distant from the card 1 by about 10 cm as radio waves in the air. The transmission of the 10-byte ID number “B” from the card 1 to the reader / writer 2 requires 400 μs.

The short-wave transmission / reception antenna 34 in the reader / writer 2 receives the radio wave transmitted from the short-wave transmission / reception antenna 39 in the card 1, converts it into a reception signal, and Output to the RF circuit 33.
The short-wave RF circuit 33 detects the input received signal, converts it into a baseband signal, and outputs it to the short-wave demodulator 32 in the reader / writer 2. The short wave demodulator 32 demodulates the baseband signal into a 10-byte ID number “B” and outputs the demodulated signal to the processor 18 in the reader / writer 2. The processor 18 in the reader / writer 2 reads the ID number “B” and checks whether or not the ID number is an authorized ID number by referring to the memory 19 in the reader / writer 2. As a result of the reference, the matching code “C” is output to the communication interface 17 when there is a matching number, and the mismatch code “D” is output to the communication interface 17 when there is no matching number.

On the other hand, in order to transmit and receive data using the microwave band, the microwave writer 3b
A power supply circuit 51 generates power to be supplied to the card 1 to generate a power supply for microwaves 5 in the writer 3b.
Output to 2. The microwave power modulator 52 modulates the power generated by the power supply circuit 51 and outputs the modulated power to the microwave band power signal transmitting antenna 53 in the writer 3b as a microwave band power signal. The power signal transmitting antenna 53 transmits the power signal in the microwave band to the card 1. The microwave power signal receiving antenna 54 in the card 1 receives the microwave power signal transmitted from the microwave writer 3b and sends it to the microwave power supply circuit 55 in the card 1. Output. The microwave power supply circuit 55 rectifies the input microwave band power signal, and the antenna 42 in the card 1 and the demodulator 4
4. The driving power is supplied to the modulator 43, the processor 27, and the memory 28.

While the microwave writer 3b is transmitting the power generated by the power supply circuit 51 to the card 1 as a power signal, the communication interface 17 obtains the personal information code “F” from the card 1. Is output to the processor 18 in the reader / writer 2. The transmission and reception of data between the reader / writer 2 and the card 1 in the microwave band is performed only during the period when power is supplied to the card 1 from the microwave writer 3b.

The processor 18 in the reader / writer 2 receiving the instruction code “E” from the communication interface 17
The input instruction code “E” is output to the microwave modulator 35 in the reader / writer 2. The microwave modulator 35 modulates the command code “E” and outputs the modulated signal to the microwave RF circuit 37 in the reader / writer 2 as a modulated signal. The microwave RF circuit 37 amplifies the modulated signal and a microwave transmitting / receiving antenna 3 in the reader / writer 2.
8 is output. The microwave transmitting / receiving antenna 38 transmits the modulated signal amplified by the microwave RF circuit 37 as a transmission signal from the reader / writer 2 to the card 1 as a radio wave toward the card 1 at a distance of about 1 m from the reader / writer 2. Send to

When the microwave transmitting / receiving antenna 42 in the card 1 receives the radio wave transmitted from the microwave transmitting / receiving antenna 38 in the reader / writer 2, it converts it into a reception signal and converts it into a reception signal. Wave demodulator 44
Output to The microwave demodulator 44 detects the input received signal, demodulates the received signal into a command code “E”, and outputs it to the processor 27 in the card 1. The processor 27 in the card 1 reads the input instruction code "E" and reads 100-byte personal code information "F" from a predetermined address "b" in the memory 28 in the card 1 according to the instruction.

The processor 27 in the card 1 further outputs the read personal code information “F” to the modulator 43 for microwaves in the card 1. The microwave modulator 43 modulates the personal code information “F” output from the processor 27 in the card 1 and outputs it to the microwave transmitting / receiving antenna 42 in the card 1 as a modulated signal. The microwave transmitting / receiving antenna 42 transmits the modulated signal as a transmission signal from the card 1 to the reader / writer 2 to the reader / writer 2 at a distance of about 1 m from the card 1 as radio waves in the air. The transmission of the 100-byte personal information code “F” from the card 1 to the reader / writer 2 requires 400 μs.

When the microwave transmitting / receiving antenna 38 in the reader / writer 2 receives a radio wave transmitted from the microwave transmitting / receiving antenna 42 in the card 1, the antenna 38 converts the received radio wave into a received signal and converts the received signal into a received signal. Output to the microwave RF circuit 37. The microwave RF circuit 37 detects the input received signal and converts it into a baseband signal. The microwave demodulator 36 demodulates the baseband signal into 100-byte personal code information “F” and outputs the demodulated signal to the processor 18 in the reader / writer 2. The processor 18 in the reader / writer 2 reads this personal code information “F” and outputs it to the communication interface 17. The data transmission time from the card 1 to the reader / writer 2 is as follows.
Both the 10-byte ID number “B” and the 100-byte personal information code “F” become the same in 400 μs.

As described above, according to the thirteenth embodiment, a plurality of frequency bands (short wave, short wave,
Microwaves) can be used to transmit and receive data, so that one card 1 can be used for data transmission over a short distance of about 10 cm, or that requires data transmission over a long distance of about 1 m Can be used in multiple applications, and data transmission and reception using the shortwave band can only be performed while the driving power is supplied in the shortwave band. Since it is performed only during the period when the driving power is supplied in the waveband, it is possible to supply the driving voltage only to the necessary transmitting / receiving system, and it is possible to realize an efficient wireless card system, In addition, since there is no need to provide a secondary battery in the card 1, it is possible to obtain effects such as lowering the cost and weight of the card 1.

Embodiment 14 FIG. FIG. 26 is a block diagram showing a wireless card system according to Embodiment 14 of the present invention.
3 are given the same reference numerals as those in FIG. In the figure, reference numeral 45 denotes a selection switch which is arranged in the card 1 and connected to the processor 27 thereof, and which is used to select whether the application is for high-speed data transmission or for checking. The switch 45 is the same as that in the second embodiment shown in FIG. The wireless card system according to the fourteenth embodiment is different from the thirteenth embodiment shown in FIG. 24 in that the selection switch 45 is connected to the processor 27 in the card 1.

Next, the operation will be described. Here, FIG.
FIG. 7 is an explanatory diagram showing a signal flow in the wireless card system according to Embodiment 14 of the present invention. The operation will be described below with reference to FIG. When used for the purpose of checking the ID number of the card 1, the selection switch 45 in the card 1 shown in FIG. 27 is first set to the use "1". When the selection switch 45 is set to the application "1", data at another transmission speed (for example, 2 Mb / s) used for the application such as reading of the personal information code is cut off.

For use in checking the ID number of the card 1, data is transmitted and received using the short wave band.
Therefore, the power supply circuit 11 in the short-wave writer 3a
Generates power to be supplied to the card 1 and outputs it to the short-wave power modulator 12 in the writer 3a. Power modulator for short wave 1
2 modulates the power generated by the power supply circuit 11 and outputs it to the antenna 13 for transmitting a short-wave power signal in the writer 3a as a short-wave power signal. The power signal transmitting antenna 13 transmits the short-wave band power signal to the card 1. The short-wave band power signal receiving antenna 14 in the card 1 receives the short-wave band power signal sent from the short-wave band power signal transmitting antenna 13 in the writer 3a, To the short-wave power supply circuit 15. The short-wave power supply circuit 15 rectifies the input power signal, and the antenna 39 and the modulator 4 in the card 1 are rectified.
0, the demodulator 41, the processor 27, and the memory 28.

While the short-wave writer 3a is transmitting the power generated by the power supply circuit 11 to the card 1 as a power signal, the communication interface 17 uses the command code "A" for checking the ID number of the card 1. (10 bytes) is output to the processor 18 in the reader / writer 2. The transmission and reception of data between the reader / writer 2 and the card 1 in the short-wave band is performed only during a period in which power is supplied to the card 1 from the short-wave writer 3a. The processor 18 in the reader / writer 2 outputs the command code “A” to the short-wave modulator 31 in the reader / writer 2. The short-wave modulator 31 modulates the input instruction code “A”, and uses the modulated signal as a modulation signal as a short-wave RF circuit 3 in the reader / writer 2.
Output to 3. The short-wave RF circuit 33 amplifies the modulated signal and transmits / receives a short-wave antenna 34 in the reader / writer 2.
Output to The short wave transmitting / receiving antenna 34 is a short wave RF
The modulated signal amplified by the circuit 33 is sent from the reader / writer 2 to the card 1 as a transmission signal from the reader / writer 2 to the card 1.
The signal is transmitted as airwaves to the card 1 about m away from the air.

Shortwave transmitting / receiving antenna 39 in card 1
When receiving the radio wave transmitted from the short-wave transmission / reception antenna 34 in the reader / writer 2, the radio wave is converted into a reception signal and output to the short-wave demodulator 41 in the card 1. The short-wave demodulator 41 detects the received short-wave band received signal, demodulates the signal into a command code “A” having a transmission rate of 200 Kb / s, and outputs the demodulated signal to the processor 27 in the card 1.
The processor 27 in the card 1 reads the command code "A" from the demodulator 41 for short waves, and reads the 10-byte ID number "B" from the address "a" of the memory 28 in the card 1 according to the command.

The processor 27 in the card 1 outputs the read ID number “B” to the modulator 40 for short-wave in the card 1. Note that other transmission speeds (for example, 2M
The sign b / s) is locked by the setting of the selection switch 45 in the card 1, so that the processor 2 in the card 1
7 cannot be read. The short-wave modulator 40 modulates the ID number “B” output from the processor 27 in the card 1 and outputs it to the short-wave transmission / reception antenna 39 in the card 1 as a modulated signal. Antenna 3 for shortwave transmission and reception
Numeral 9 transmits the modulated signal as a transmission signal from the card 1 to the reader / writer 2 to the reader / writer about 10 cm away from the card as radio waves in the air. Note that transmission of the ID number “B” (10 bytes) from the card 1 to the reader / writer 2 requires 400 μs.

The short-wave transmitting / receiving antenna 34 in the reader / writer 2 receives the radio wave transmitted from the short-wave transmitting / receiving antenna 39 in the card 1, converts the received radio wave into a received signal, and Output to the RF circuit 33.
The short-wave RF circuit 33 detects the input received signal, converts it into a baseband signal, and outputs it to the short-wave demodulator 32 in the reader / writer 2. The short wave demodulator 32 demodulates the baseband signal into a 10-byte ID number “B” and outputs the demodulated signal to the processor 18 in the reader / writer 2. The processor 18 in the reader / writer 2 reads the ID number “B” and checks whether or not the ID number is an authorized ID number by referring to the memory 19 in the reader / writer 2. As a result of the reference, the matching code “C” is output to the communication interface 17 when there is a matching number, and the mismatch code “D” is output to the communication interface 17 when there is no matching number.

On the other hand, when the personal information code "F" (100 bytes) is read from the card 1, the selection switch 45 in the card 1 is set to the use "2". In order to use the personal information code "F" for reading, data is transmitted and received using the microwave band. For this purpose, the power supply circuit 51 in the microwave writer 3b is The power to be supplied is generated and output to the microwave power modulator 52 in the writer 3b. The power supply modulator 52 for the microphone wave includes the power supply circuit 5
1 modulates the generated power and outputs it as a microwave band power signal to a microwave band power signal transmitting antenna 53 in the writer 3a. The power signal transmitting antenna 53 transmits the power signal in the microwave band to the card 1. The antenna 54 for receiving the power signal in the microwave band in the card 1 receives the power signal in the microwave band transmitted by the antenna 53 for transmitting the power signal in the microwave band in the writer 3a, and The signal is output to the microwave power supply circuit 55. The microwave power supply circuit 55 rectifies the input power signal, and the antenna 42, the modulator 43, the demodulator 44, and the processor 2 in the card 1
7. Supply drive power to the memory 28.

While the microwave writer 3b is transmitting the power generated by the power supply circuit 51 to the card 1 as a power signal, the communication interface 17 reads the instruction code “E” for reading the personal information code from the card 1. Is output to the processor 18 in the reader / writer 2. The transmission and reception of data between the reader / writer 2 and the card 1 in the microwave band is performed by using the microwave writer 3
This is performed only during the period when power is supplied from b.

The processor 18 in the reader / writer 2 outputs the command code “E” (10 bytes) to the microwave modulator 35 in the reader / writer 2. The microwave modulator 35 modulates the instruction code “E” and outputs the modulated signal to the microwave RF circuit 37 in the reader / writer 2 as a modulated signal. The microwave RF circuit 37 amplifies the input modulated signal and outputs the amplified signal to the microwave transmitting / receiving antenna 38 in the reader / writer 2. The microwave transmitting / receiving antenna 38 converts the modulated signal amplified by the microwave RF circuit 37 into a transmission signal from the reader / writer 2 to the card 1 as a radio wave toward the card 1 at a distance of about 1 m from the reader / writer 2. Send in the air.

When the microwave transmitting / receiving antenna 42 in the card 1 receives a radio wave transmitted from the microwave transmitting / receiving antenna 38 in the reader / writer 2, it converts the received radio wave into a reception signal and converts it into a reception signal. Wave demodulator 44
Output to The microwave demodulator 44 detects the received microwave band received signal, demodulates the signal into the code of the command code “E” of 2 Mb / s, and
Output to The processor 27 in the card 1 reads this command code "E", and reads 100-byte personal code information "F" from the address "b" in the memory 28 in the card 1 according to the command.

The processor 27 in the card 1 further outputs the read personal code information “F” to the modulator 43 for microwaves in the card 1. At this time, the code of another transmission speed (for example, 200 Kb / s) is
Is locked by the setting of the selection switch 45 in the card 1 and is not read by the processor 27 in the card 1. The microwave modulator 43 modulates the personal code information “F” output from the processor 27 in the card 1 and uses it as a modulation signal to transmit and receive a microwave transmitting / receiving antenna 42 in the card 1.
Output to The microwave transmitting / receiving antenna 42 transmits the modulated signal as a transmission signal from the card 1 to the reader / writer 2 to the reader / writer 2 at a distance of about 1 m from the card 1 as a radio wave in the air. The transmission of the 100-byte personal information code “F” from the card 1 to the reader / writer 2 requires 400 μs.

When the microwave transmitting / receiving antenna 38 in the reader / writer 2 receives the radio wave transmitted from the microwave transmitting / receiving antenna 42 in the card 1, it converts it into a reception signal and converts it into a reception signal. The signal is output to the microwave RF circuit 37. The microwave RF circuit 37 detects the received signal, converts the signal into a baseband signal, and outputs the signal to the microwave demodulator 36 in the reader / writer 2. The microwave demodulator 36 demodulates the baseband signal into 100-byte personal code information “F” and outputs the demodulated signal to the processor 18 in the reader / writer 2. The processor 18 in the reader / writer 2 transmits the 100-byte personal code information "F".
Is read and output to the communication interface 17. The data transmission time from the card 1 to the reader / writer 2 is the same at 400 μs for both the 10-byte ID number “B” and the 100-byte personal information code “F”.

As described above, according to the fourteenth embodiment, by providing selection switch 45, when used for number checking, data used for reading personal information code can be used. Can be blocked, and if it is used for reading personal information code, it can block data used for number checking, so it can be used for multiple purposes. When transmitting / receiving data to / from a single card 1, data transmission / reception for purposes other than the desired use can be prevented. It can be used in multiple applications, such as applications that require short-distance data transmission and applications that require long-distance data transmission of about 1 m, and are efficient and secure. Effect that the card system can be realized.

Embodiment 15 FIG. FIG. 28 is a block diagram showing a wireless card system according to Embodiment 15 of the present invention.
3 are given the same reference numerals as those in FIG. In the figure, reference numeral 46a denotes a detector for detecting that the card 1 is present when the card 1 enters a range in which data can be transmitted and received.
a is a detection antenna for the detector 46a. 46b
Is a detector for detecting that the card 1 is present when the card 1 enters a range in which data can be transmitted and received, and 47b is a detection antenna for the detector 46b.

In the wireless card system according to the fifteenth embodiment, the detector 46 is installed in the short-wave writer 3a.
a and a detection antenna 47a, and the detector 46b and the detection antenna 47 are provided in the microwave writer 3b.
b is different from the thirteenth embodiment shown in FIG.

Next, the operation will be described. Here, FIG.
FIG. 9 is an explanatory diagram showing a signal flow in the wireless card system according to Embodiment 15 of the present invention. Hereinafter, the operation will be described with reference to FIG. In FIG. 29, when the card 1 is used for checking the ID number, the detector 46a in the writer 3a for short wave transmits a signal for detecting the card 1 at a constant time interval, and the card 1 When the data enters a range in which data can be transmitted and received, the presence of the card 1 is detected via the detection antenna 47a in the writer 3a.

At this time, in order to transmit and receive data using the short wave band, the power supply circuit 11 in the writer 3a generates electric power to be supplied to the card 1 and sends it to the short wave power modulator 12 in the writer 3a. Output. The shortwave power modulator 12 modulates the power generated by the power supply circuit 11 in the writer 3a, and outputs the modulated power to the shortwave power signal transmitting antenna 13 in the writer 3a as a shortwave power signal. The power signal transmitting antenna 13 transmits the input short-wave band power signal to the card 1. The short-wave band power signal receiving antenna 14 in the card 1 receives the short-wave band power signal transmitting antenna 13 in the writer 3a and transmits it to the short-wave power circuit 15 in the card 1. Output to The short-wave power supply circuit 15 rectifies the input short-wave band power signal and outputs the antenna 39, the modulator 40, and the demodulator 4 in the card 1.
1, and drive power is supplied to the processor 27 and the memory 28.

While the short-wave writer 3a is transmitting the power generated by the power supply circuit 11 to the card 1 as a power signal, the communication interface 17 uses the command code "A" for checking the ID number of the card 1. (10 bytes) is output to the processor 18 in the reader / writer 2. The transmission and reception of data between the reader / writer 2 and the card 1 in the short-wave band is performed only during a period in which power is supplied to the card 1 from the short-wave writer 3a.

The processor 18 in the reader / writer 2 converts the command code “A” into the short-wave modulator 31 in the reader / writer 2.
Output to The short-wave modulator 31 modulates the input instruction code "A" and uses the modulated instruction code "A" as a modulation signal.
Output to the short-wave RF circuit 33 in FIG. RF circuit for short wave 3
3 amplifies the modulated signal and outputs it to the short-wave transmitting / receiving antenna 34 in the reader / writer 2. The short wave transmitting / receiving antenna 34 uses the modulated signal amplified by the short wave RF circuit 33 as a transmission signal from the reader / writer 2 to the card 1 as a transmission signal.
It is transmitted to the card 1 at a distance of about 10 cm from the reader / writer 2 as airwaves in the air.

The antenna 39 for transmitting and receiving short-waves in the card 1
When receiving the radio wave transmitted from the short wave transmitting / receiving antenna 34 in the reader / writer 2, it converts it into a received signal and outputs it to the short wave demodulator 41 in the card 1. The short-wave demodulator 41 detects the input received signal, demodulates the received signal into a code (10 bytes) of the command code “A”, and outputs it to the processor 27 in the card 1. Processor 27 in card 1
Reads the instruction code "A" and, according to the instruction,
The 10-byte ID number "B" is read from the address "a" of the memory 28 in the card 1.

The processor 27 in the card 1 outputs the read ID number “B” to the modulator 40 for short-wave in the card 1. The short-wave modulator 40 modulates the ID number “B” output from the processor 27 in the card 1 and outputs it to the short-wave transmission / reception antenna 39 in the card 1 as a modulated signal. Antenna 39 for transmitting and receiving short waves
Transmits the input modulated signal as a transmission signal from the card 1 to the reader / writer 2 to the reader / writer 2 about 10 cm away from the card 1 as radio waves in the air. Note that transmission of the 10-byte ID number “B” from the card 1 to the reader / writer 2 requires 400 μs.

The short wave transmitting / receiving antenna 34 in the reader / writer 2 receives the radio wave transmitted from the short wave transmitting / receiving antenna 39 in the card 1, converts the received radio wave into a reception signal, and converts the received signal into a short wave in the reader / writer 2. Output to the RF circuit 33.
The short-wave RF circuit 33 detects the input received signal, converts it into a baseband signal, and outputs it to the short-wave demodulator 32 in the reader / writer 2. The short wave demodulator 32 demodulates the baseband signal into a 10-byte ID number “B” and outputs the demodulated signal to the processor 18 in the reader / writer 2. The processor 18 in the reader / writer 2 reads the ID number “B” and checks whether or not the ID number is an authorized ID number by referring to the memory 19 in the reader / writer 2. As a result of the reference, the matching code “C” is output to the communication interface 17 when there is a matching number, and the mismatch code “D” is output to the communication interface 17 when there is no matching number.

On the other hand, when used for reading the personal information code “F” (100 bytes) in the card 1, the detector 46 b in the microwave writer 3 b detects the card 1. Are transmitted at a fixed time interval, and when the card 1 enters a range in which data can be transmitted and received, the presence of the card 1 is detected via the detection antenna 47b in the writer 3b.

At this time, in order to transmit and receive data using the microwave band, the power supply circuit 5 in the writer 3b is used.
1 generates power to be supplied to the card 1 and outputs the power to the microwave modulator 52 in the writer 3b. The microwave modulator 52 modulates the power generated by the power supply circuit 51 in the writer 3b, and converts it into a microwave band power signal.
To the antenna 53 for transmitting a microwave power signal. The power signal transmitting antenna 53 transmits the power signal in the microwave band to the card 1. The antenna 54 for receiving a power signal in the microwave band in the card 1 receives the power signal in the microwave band and outputs the power signal to the microwave power supply circuit 55 in the card 1. The microwave power supply circuit 55 rectifies the input microwave power signal and supplies drive power to the antenna 42, demodulator 44, modulator 43, processor 27, and memory 28 in the card 1.

While the microwave writer 3b is transmitting the power generated by the power supply circuit 51 to the card 1 as a power signal, the communication interface 17 reads the command code for reading the personal information code in the card 1. E ”(10 bytes) is output to the processor 18 in the reader / writer 2. The transmission and reception of data between the reader / writer 2 and the card 1 in the microwave band is performed only during a period in which power is supplied to the card 1 from the microwave writer 3b.

The processor 18 in the reader / writer 2 outputs the command code “E” to the microwave modulator 35 in the reader / writer 2. The microwave modulator 35 modulates the input command code “E” and outputs it to the microwave RF circuit 37 in the reader / writer 2 as a modulated signal. The microwave RF circuit 37 amplifies the input modulated signal and outputs the amplified signal to a microwave transmitting / receiving antenna 38 in the reader / writer 2. The microwave transmitting / receiving antenna 38 uses the modulated signal amplified by the microwave RF circuit 37 as a transmission signal from the reader / writer 2 to the card 1 as a transmission signal.
It is transmitted as airwaves to the card 1 about 1 m away from the reader / writer 2 in the air.

When the microwave transmitting / receiving antenna 42 in the card 1 receives the radio wave transmitted from the microwave transmitting / receiving antenna 38 in the reader / writer 2, it converts it into a reception signal and To the demodulator 44 for use. The microwave demodulator 44 detects the input received signal, demodulates the received signal into a command code “E”, and outputs it to the processor 27 in the card 1. The processor 27 in the card 1 reads the input instruction code "E", and reads 100-byte personal code information "F" from the address "b" in the memory 28 in the card 1 according to the instruction.

The processor 27 in the card 1 outputs the read personal code information “F” to the modulator 43 for microwaves in the card 1. Modulator 4 for microwave
3 modulates the personal code information “F” input from the processor 27 in the card 1 and outputs it to the microwave transmitting / receiving antenna 42 in the card 1 as a modulated signal. The microwave transmitting / receiving antenna 42 transmits the input modulated signal as a transmission signal from the card 1 to the reader / writer 2 to the reader / writer 2 about 1 m away from the card 1 as radio waves in the air. The personal information code transmission from the card 1 to the reader / writer 2 requires 400 μm.
s.

When the microwave transmitting / receiving antenna 38 in the reader / writer 2 receives the radio wave transmitted from the microwave transmitting / receiving antenna 42 in the card 1, it converts it into a reception signal and converts it into a reception signal. The signal is output to the wave RF circuit 37. The microwave RF circuit 37 detects the received signal, converts the signal into a baseband signal, and outputs the signal to the microwave demodulator 36 in the reader / writer 2. The microwave demodulator 36 converts the input baseband signal to 100
It demodulates to the byte personal code information "F" and outputs it to the processor 18 in the reader / writer 2. The processor 18 in the reader / writer 2 reads this 100-byte personal code information “F” and outputs it to the communication interface 17. The data transmission time from the card 1 to the reader / writer 2 is based on the 10-byte ID number “B” and 10 bytes.
The 0-byte personal information code “F” is the same in 400 μs.

As described above, according to the fifteenth embodiment, when the writers 3a, 3b detect that the card 1 has entered the data transmission / reception range with the detectors 46a, 46b, the writer 3a, 3b switches the power supply to the card 1 up. In order to start, unlike the case where the writers 3a and 3b are constantly transmitting power signals, the power supplied by the writers 3a and 3b can be saved, and 10c can be saved for one card 1.
It can be used in multiple applications, such as applications where data is transmitted over a short distance of about m or applications requiring data transmission over a long distance of about 1 m, resulting in an efficient wireless card system. Is obtained.

Embodiment 16 FIG. FIG. 30 is a block diagram showing a wireless card system according to Embodiment 16 of the present invention.
5 are given the same reference numerals as in FIG. In the figure, reference numeral 48 denotes a control device which controls the operations of the short-wave writer 3a, the microwave writer 3b, and the reader / writer 2, and further processes information obtained from the processor 18 in the reader / writer 2. 50 is the control device 48
This is the application software that runs on These are the same as those in the sixth embodiment shown in FIG. Embodiment 16
Is provided with a control device 48 that executes application software 50.
This is different from the fifteenth embodiment shown in FIG.

Next, the operation will be described. Here, FIG.
FIG. 1 is an explanatory diagram showing a signal flow in a wireless card system according to Embodiment 16 of the present invention. Hereinafter, the operation will be described with reference to FIG. In FIG. 31, a power supply circuit 1 in a short-wave writer 3a is used to transmit and receive data using a short-wave band.
1 generates electric power to be supplied to the card 1 and
The signal is output to the short-wave power modulator 12 in a. The short-wave power modulator 12 modulates the power generated by the power supply circuit 11 and outputs the modulated power to the short-wave power signal transmitting antenna 13 in the writer 3a as a short-wave power signal. The power signal transmitting antenna 13 transmits the power signal in the short wave band to the card 1. The short-wave power signal receiving antenna 14 in the card 1 receives the short-wave power signal sent from the writer 3b and outputs it to the short-wave power circuit 15 in the card 1. The short-wave power supply circuit 15 rectifies the input short-wave band power signal to form an antenna 39, a modulator 40, a demodulator 41, and a processor 2 in the card 1.
7. Supply drive power to the memory 28.

The control device 48 is the application software 5
0, and if the application software 50 is software for checking the ID number of the card 1 (software for transmitting and receiving data in the short-wave band), a 10-byte instruction code for checking the ID number “B” of the card 1 “A” is output to the processor 18 in the reader / writer 2. The transmission and reception of data between the reader / writer 2 and the card 1 using the short wave band is performed only during a period in which power is supplied to the card 1 from the power supply circuit 11 in the writer 3a.

The processor 18 in the reader / writer 2 converts the instruction code “A” into the short wave modulator 3 in the reader / writer 2.
Output to 1. The short-wave modulator 31 has its command code “A”.
And a short-wave R in the reader / writer 2 as a modulation signal.
Output to the F circuit 33. The short-wave RF circuit 33 amplifies the input modulation signal and outputs it to the short-wave transmission / reception antenna 34 in the reader / writer 2. Antenna 3 for shortwave transmission and reception
4 is a modulation signal amplified by the short-wave RF circuit 33,
As a transmission signal from the reader / writer 2 to the card 1, the signal is transmitted as airwaves to the card 1 at a distance of about 10 cm from the reader / writer 2 in the air.

An antenna 39 for transmitting / receiving short-waves in the card 1
When receiving the radio wave transmitted from the short wave transmitting / receiving antenna 34 in the reader / writer 2, it converts it into a received signal and outputs it to the short wave demodulator 41 in the card 1. The short-wave demodulator 41 detects the input received signal, demodulates the received signal into a command code “A”, and outputs it to the processor 27 in the card 1. The processor 27 in the card 1 reads the instruction code "A", and reads the 10-byte ID number "B" from the address "a" in the memory 28 in the card 1 according to the instruction.

The processor 27 in the card 1 further converts the read ID number “B” into the shortwave modulator 4 in the card.
Output to 0. The modulator 40 for short-wave transmission and reception modulates the ID number "B" output from the processor 27 in the card 1 and outputs the modulated signal to the antenna 39 for short-wave transmission and reception in the card 1 as a modulated signal. The short-wave transmitting / receiving antenna 39 transmits the modulated signal as a transmission signal from the card 1 to the reader / writer 2 to the reader / writer 2 which is about 10 cm away from the card as a radio wave in the air. In addition,
10-byte ID from this card 1 to reader / writer 2
Transmission of the number "B" requires 400 μs.

When the short-wave transmission / reception antenna 34 in the reader / writer 2 receives the radio wave transmitted from the short-wave transmission / reception antenna 39 in the card 1, it converts it into a reception signal and converts it into a reception signal. Output to the circuit 33. The short-wave RF circuit 33 detects the received signal, converts it into a baseband signal, and outputs the short-wave demodulator 3 in the reader / writer 2.
Output to 2. The short-wave demodulator 32 demodulates the input baseband signal into a 10-byte ID number “B” and outputs the demodulated signal to the processor 18 in the reader / writer 2. The processor 18 in the reader / writer 2 reads the ID number “B” and checks whether or not the ID number is an authorized ID number by referring to the memory 19 in the reader / writer 2. As a result of the reference, the matching code “C” is output to the communication interface 17 when there is a matching number, and the mismatch code “D” is output to the communication interface 17 when there is no matching number.

On the other hand, in order to transmit and receive data using the microwave band, the microwave writer 3b
A power supply circuit 51 generates power to be supplied to the card 1 and generates a microwave power modulator 52 in the writer 3b.
Output to The microwave power modulator 52 modulates the power generated by the power supply circuit 51 and outputs the modulated power to a microwave band power signal transmitting antenna 53 in the writer 3b. The power signal transmitting antenna 53 transmits the input microwave band power signal to the card 1. An antenna 54 for receiving a microwave band power signal in the card 1 receives the microwave band power signal, and a microwave power supply circuit 55 in the card 1.
Output to The microwave power supply circuit 55 rectifies the input power signal, and the antenna 42, the modulator 43, the demodulator 44, the processor 27, the memory 28 in the card 1
To supply driving power.

The control device 48 is the application software 5
0, and if the application software 50 is software for reading the personal information code in the card 1 (software for transmitting and receiving data in the microwave band), a 10-byte instruction code for reading the personal information code from the card 1 " E "is output to the processor 18 in the reader / writer 2. The transmission and reception of data between the reader / writer 2 and the card 1 using the microwave band is performed only during a period in which power is supplied to the card 1 from the power supply circuit 51 in the writer 3b.

The processor 18 in the reader / writer 2 outputs the instruction code “E” to the microwave modulator 35 in the reader / writer 2. The microwave modulator 35 modulates the input command code “E” and outputs it to the microwave RF circuit 37 in the reader / writer 2 as a modulated signal. The microwave RF circuit 37 amplifies the modulated signal and outputs the amplified signal to the microwave transmitting / receiving antenna 38 in the reader / writer 2. The microwave transmission / reception antenna 38 converts the modulated signal amplified by the microwave RF circuit 37 into a transmission signal from the reader / writer 2 to the card 1 and outputs the modulated signal to the reader / writer 2.
Is transmitted as airwaves to the card 1 about 1 m away from the air.

When the microwave transmitting / receiving antenna 42 in the card 1 receives the radio wave transmitted from the microwave transmitting / receiving antenna 38 in the reader / writer 2, it converts it into a reception signal and To the demodulator 44 for use. The microwave demodulator 44 detects the input received signal, demodulates the received signal into a command code “E”, and outputs it to the processor 27 in the card 1. The processor 27 in the card 1 reads this instruction code "E", and accordingly, 10 bits from the address "b" of the memory 28 in the card 1
Read 0-byte personal code information “F”.

The processor 27 in the card 1 further outputs the read personal code information “F” to the modulator 43 for microwaves in the card 1. Modulator 4 for microwave
3 modulates the personal code information “F” input from the processor 27 in the card 1 and outputs it to the microwave transmitting / receiving antenna 42 in the card 1 as a modulated signal. The microwave transmitting / receiving antenna 42 transmits the input modulated signal as a transmission signal from the card 1 to the reader / writer 2 to the reader / writer 2 about 1 m away from the card 1 as radio waves in the air. The transmission of the personal information code “F” from the card 1 to the reader / writer 2 requires 400 μs.

When the microwave transmitting / receiving antenna 38 in the reader / writer 2 receives the radio wave transmitted from the microwave transmitting / receiving antenna 42 in the card 1, it converts it into a reception signal and converts it into a reception signal. The signal is output to the wave RF circuit 37. The microwave RF circuit 37 detects the input received signal, converts it into a baseband signal, and outputs the baseband signal to the microwave demodulator 36 in the reader / writer 2. Microwave demodulator 36 converts the baseband signal to 100
The data is demodulated to byte personal code information “F” and output to the processor 18 in the reader / writer 2. The processor 18 in the reader / writer 2 reads this personal code information “F” and outputs it to the control device 48.

As described above, according to the sixteenth embodiment, the frequency band of data transmitted / received from reader / writer 2 to one card 1 can be automatically changed only by rearranging application software 50 for operating control device 48. Can be switched over and can be used to transmit data to a single card 1 at a short distance of about 10 cm.
It is possible to use the wireless card system for a plurality of uses such as a use requiring data transmission over a long distance of about m, and an effect that an efficient wireless card system can be realized is obtained.

Embodiment 17 FIG. FIG. 32 is a block diagram showing a wireless card system according to Embodiment 17 of the present invention.
3 are given the same reference numerals as those in FIG. In the figure, reference numeral 4 denotes a card equivalent to the card 1 in the thirteenth embodiment, and reference numeral 5 denotes a first reader / writer equivalent to the reader / writer 2 in the thirteenth embodiment. 6a
Is a first writer for short waves equivalent to the writer 3a for short waves in the thirteenth embodiment, and 6b is a first writer for microwaves equivalent to the writer for microwaves 3b in the thirteenth embodiment. It is. Reference numeral 7 denotes a second reader / writer provided separately from the first reader / writer 5 and equivalent to the reader / writer 2 in the thirteenth embodiment. 8a is a second short-wave writer provided separately from the short-wave first writer 6a and equivalent to the short-wave writer 3a in the thirteenth embodiment, and 8b is a first microwave writer. Reference numeral 6b denotes a second microwave writer provided separately from the microwave writer 3b in the thirteenth embodiment, which is separately provided.

Reference numeral 48 denotes the first reader / writer 5
, A second reader / writer 7, a short-wave first writer 6a, a microwave first writer 6b, and a short-wave second writer 6b.
This is a control device that controls the operations of the writer 8a and the second writer 8b for microwaves, and further processes information obtained from the processor 18 in the first reader / writer 5 and the second reader / writer 7. . Reference numeral 49 denotes a display device for displaying information processed by the control device 48, and reference numeral 50 denotes application software executed by the control device 48. The wireless card system according to the seventeenth embodiment includes:
A plurality of reader / writers 5, 7 and short-wave writers 6a, 8
a, and the writer 6b, 8b for microwaves, and the application software 50, the controller 48 for executing the software, and the display 49.
This is different from the thirteenth embodiment shown in FIG.

Next, the operation will be described. Here, FIG.
FIG. 3 is an explanatory diagram showing a signal flow in the wireless card system according to Embodiment 17 of the present invention. Hereinafter, the operation will be described with reference to FIG. In FIG. 33, in order to transmit and receive data using the short wave band, the power supply circuit 11 in the first writer 6a for short wave generates power to be supplied to the card 4,
The signal is output to the shortwave power modulator 12 in the first writer 6a for shortwave. The short-wave power modulator 12 is connected to the power supply circuit 1.
1 is modulated and output as a short-wave band power signal to the short-wave band power signal transmitting antenna 13 in the short-wave first writer 6a. Antenna 1 for transmitting power signal
3 transmits the short-wave band power signal to the card 4. The short-wave power transmission antenna 14 in the card 4 receives the short-wave power signal and outputs it to the short-wave power supply circuit 15 in the card 4. The short-wave power supply circuit 15 rectifies the input short-wave band power signal and supplies driving power to the antenna 39, the modulator 40, the demodulator 41, the processor 27, and the memory 28 in the card 4.

The control device 48 is the application software 5
0, and if the application software 50 is software for checking the ID number of the card 4 (software for transmitting and receiving data in the short-wave band), a 10-byte instruction code "A" for checking the ID number of the card 4 Is output to the processor 18 in the first reader / writer 5. In transmitting and receiving data between the first reader / writer 5 and the card 4 using the shortwave band, power is supplied to the card 4 from the power supply circuit 11 in the first writer 6a for shortwave. This is done only for a certain period.

The processor 18 in the first reader / writer 5
Outputs the command code “A” to the short-wave modulator 31 in the first reader / writer 5. The short-wave modulator 31 modulates the command code “A” and outputs it to the short-wave RF circuit 33 in the first reader / writer 5 as a modulated signal. RF for short wave
The circuit 33 amplifies the input modulated signal and outputs the amplified signal to the short-wave transmitting / receiving antenna 34 in the first reader / writer 5.
The short-wave transmitting / receiving antenna 34 is connected to the short-wave RF circuit 33.
The modulated signal amplified by the first reader / writer 5 is transmitted from the first reader / writer 5 to the card 4 as a transmission signal to the card 4.
It is transmitted as airwaves to the card 4 about 0 cm away in the air.

Shortwave transmitting / receiving antenna 39 in card 4
Denotes an antenna 3 for transmitting and receiving short-waves in the first reader / writer 5
When receiving the radio wave transmitted from 4, it converts it into a received signal and outputs it to the short-wave demodulator 41 in the card 4. The short-wave demodulator 41 detects the received signal, demodulates the received signal into the code of the command code “A”, and outputs it to the processor 27 in the card 4. The processor 27 in the card 4 reads the instruction code “A”, and reads the 10-byte ID number “B” from the address “a” in the memory 28 in the card 4 according to the instruction.

The processor 27 in the card 4 further outputs the read ID number “B” to the modulator 40 for short-wave in the card 4. The short wave modulator 40 modulates the ID number “B” output from the processor 27 in the card 4 and outputs the modulated signal to the short wave transmitting / receiving antenna 39 in the card 4 as a modulated signal. The short wave transmitting / receiving antenna 39 transmits the input modulated signal as a transmission signal from the card 4 to the first reader / writer 5 to the first reader / writer 5 about 10 cm away from the card 4 as airwaves in the air. I do. Note that the first reader / writer 5
400 μs for transmission of 10-byte ID number “B” to
Cost.

The short wave transmitting / receiving antenna 34 in the first reader / writer 5 is the short wave transmitting / receiving antenna 3 in the card 4.
When receiving the radio wave transmitted from 9, it converts it into a received signal and outputs it to the short-wave RF circuit 33 in the first reader / writer 5. The short-wave RF circuit 33 detects the input received signal, converts it into a baseband signal, and outputs it to the short-wave demodulator 32 in the first reader / writer 5. Short wave demodulator 3
2 demodulates the baseband signal into a 10-byte ID number “B” and outputs it to the processor 18 in the first reader / writer 5. The processor 18 in the first reader / writer 5 reads this ID number "B" and
Whether the number is a number or not is checked by referring to the memory 19 in the first reader / writer 5. As a result of the reference, the matching code “C” is output to the communication interface 17 when there is a matching number, and the mismatch code “D” is output to the communication interface 17 when there is no matching number.

On the other hand, in order to transmit and receive data using the microwave band, the power supply circuit 51 in the first writer 6 b for microwaves generates power to be supplied to the card 4, The signal is output to the microwave power modulator 52 in the microwave first writer 6b. The microwave power modulator 52 modulates the power generated by the power supply circuit 51, and transmits a microwave band power signal transmitting antenna 53 in the microwave first writer 6b as a microwave band power signal. Output to Antenna 53 for transmitting power signal
Transmits this microwave band power signal to the card 4. The antenna 54 for receiving a power signal in the microwave band in the card 4 receives the power signal transmitted by the first writer 6 b for microwave and receives the power signal from the first writer 6 for microwave.
Output to the microwave power supply circuit 55 in b. The microwave power supply circuit 55 rectifies the input microwave band power signal, and the antenna 42, the modulator 43,
The driving power is supplied to the demodulator 44, the processor 27, and the memory 28.

The control device 48 is the application software 5
0, and if the application software 50 is software for reading the personal information code in the card 4 (software for transmitting and receiving data in the microwave band), a 10-byte instruction code for reading the personal information code from the card 4 " E ”is output to the processor 18 in the first reader / writer 5. The transmission and reception of data between the first reader / writer 5 and the card 4 using the microwave band is performed by the power supply circuit 51 in the first writer 6b for microwaves.
Is performed only during the period when power is supplied to the power supply.

The processor 18 in the first reader / writer 5
Outputs the command code “E” to the microwave modulator 35 in the first reader / writer 5. The microwave modulator 35 modulates the input command code “E”, and as a modulated signal, the microwave RF circuit 3 in the first reader / writer 5.
7 is output. The microwave RF circuit 37 amplifies the input modulated signal and outputs the signal to a microwave transmitting / receiving antenna 38 in the reader / writer 5. A microwave transmitting / receiving antenna 38 converts the modulated signal amplified by the microwave RF circuit 37 into a signal transmitted from the first reader / writer 5 to the card 4 as a transmission signal from the first reader / writer 5 to the card 4 about 1 m away from the first reader / writer 5. Is transmitted to the air as radio waves.

When the microwave transmitting / receiving antenna 42 in the card 4 receives the radio wave transmitted from the microwave transmitting / receiving antenna 38 in the first reader / writer 5, it converts it into a reception signal and Is output to the demodulator 44 for microwaves. The microwave demodulator 44 detects the received signal, demodulates the received signal into a command code “E”, and outputs it to the processor 27 in the card 4. The processor 27 in the card 4 reads the input instruction code “E”, and reads 100-byte personal code information “F” from the address “b” in the memory 28 in the card 4 according to the instruction.

The processor 27 in the card 4 further outputs the read personal code information “F” to the modulator 43 for microwaves in the card 4. Modulator 4 for microwave
3 modulates the personal code information “F” output from the processor 27 in the card 4 and outputs it to the microwave transmitting / receiving antenna 42 in the card 4 as a modulated signal.
The microwave transmitting / receiving antenna 42 uses the modulated signal as a transmission signal from the card 4 to the first reader / writer 5,
It is transmitted as airwaves to the first reader / writer 5 which is about 1 m away from the card 4. The transmission of the personal information code “F” from the card 4 to the first reader / writer 5 requires 400 μs.

When the microwave transmitting / receiving antenna 38 in the first reader / writer 5 receives the radio wave transmitted from the microwave transmitting / receiving antenna 42 in the card 4, it converts the radio wave into a received signal and converts the received signal into the first signal. The signal is output to the microwave RF circuit 37 in the reader / writer 5. RF circuit for microwave 3
7 detects the received signal and converts it into a baseband signal, and a microwave demodulator 36 in the first reader / writer 5.
Output to The microwave demodulator 36 demodulates the baseband signal into 100-byte personal code information “F” and outputs the demodulated signal to the processor 18 in the first reader / writer 5. The processor 18 in the first reader / writer 5 reads the input personal code information “F” and
8 is output.

Similarly, another short-wave second writer 8a and another microwave second writer 8a are used.
Power is supplied to the card 4 from b. The card 4 reads the 10-byte ID number “B” during the period in which power is supplied in the short-wave band and transmits it to the second reader / writer 7 in the short-wave band to supply power in the microwave band. And 1
The personal information code “F” of 00 bytes is read and transmitted to the second reader / writer 7 in the microwave band. The second reader / writer 7 outputs the match / mismatch of the ID numbers to the communication interface 17 and the personal information code to the control device 48.

The control device 48 determines the number of coincidence codes output from the processor 18 in the first reader / writer 5 and the second reader / writer 7 as in the case of the fifth embodiment shown in FIG. Counting the number of mismatch codes or reading personal information. When the number of mismatch codes exceeds a certain value, the first writer 6a for short wave and the first writer 6b for microwave, or the second writer 8a for short wave and the second writer 8a for microwave A control signal for stopping transmission of the power signal is transmitted to the second writer 8b. The control device 48 further outputs the number of matching codes to the display device 49 for each unit time. Further, necessary information is selected from the personal information and output to the display device 49. The display device 49 displays the information sent from the control device 48. The number of matches / mismatches of the ID numbers read from the card 4 and the contents of personal information are managed by the control device 48 by the plurality of reader / writers 5 and 7, and the necessary information is displayed on the display device 49. Information that can be read by a plurality of reader / writers 5 and 7 can be grasped collectively.

As described above, according to the seventeenth embodiment, information that can be read by a plurality of reader / writers 5 and 7 in the facility can be collectively managed and grasped, and writer 6a, 6b or 8a can be used as necessary. , 8b, etc., and can be used for data transmission over a short distance of about 10 cm to one card 1 or data transmission over a long distance of about 1 m. It is possible to use the wireless card system for a plurality of uses such as a required use, and an effect that an efficient wireless card system can be realized is obtained.

[0240]

As described above, according to the present invention, the data transmission from the reader / writer to the card for obtaining the data stored in the card and storing the data in the card in a contactless manner. Equipped with a transmission / reception system that transmits data from the card to the reader / writer in the short-wave band, and a transmission / reception system that both transmits in the microwave band. Since the data transmission by the two transmission / reception systems is performed only during the period in which the driving power is supplied, one data transmission / reception system uses a plurality of frequency bands (short wave, microwave). Data transmission / reception to / from the card of 200Kb / s and 2Mb faster than that
/ S transmission speed.
A single card can be used for a number of purposes, such as a number check application and an application that requires a large amount of data compared to this number check, such as reading a personal information code. For applications that require it, it is possible to send and receive data at high speed,
Since an efficient wireless card system can be obtained, and a secondary battery in the card is not required, there is an effect that the price and weight of the card can be reduced.

According to the present invention, data is transmitted from a reader / writer to a card in a microwave band so that data stored in the card can be obtained and stored in the card without contact. A transmission / reception system that performs data transmission to the reader / writer in the short wave band is provided, and drive power is supplied from the writer to the card in a non-contact manner using the short wave band, and data transmission by the transmission / reception system is performed by the drive power. Since it is configured to perform data only during the period in which it is supplied, in applications where it is necessary to write data into the card at high speed, writing time can be reduced by using the microwave band for data transmission from the reader / writer to the card. It is possible to obtain an efficient wireless card system, and furthermore, the secondary battery in the card can be obtained. Because it becomes unnecessary, there is an effect such as attained also low-cost and weight of the card.

According to the present invention, data is transmitted from a reader / writer to a card in a short-wave band, and data is transmitted from a card to a reader in order to acquire data stored in the card and store data in the card in a non-contact manner. A transmission / reception system that performs data transmission to the writer in the microwave band is provided, and drive power is supplied from the writer to the card in a non-contact manner using the short wave band, and data transmission by the transmission / reception system is performed by the transmission power. Since it is configured to perform reading only during the supplied period, in applications where it is necessary to read data from the card at high speed, the reading time can be reduced by using the microwave band for data transmission from the card to the reader / writer. Can be shortened, and an efficient wireless card system can be obtained.
Since the secondary battery in the card is not required, there are effects such as reduction in cost and weight of the card.

According to the present invention, the data transmission from the reader / writer to the card and the data transmission from the card to the reader / writer for acquiring the data stored in the card and storing the data in the card in a contactless manner. A transmission / reception system for performing transmission in a short-wave band and a transmission / reception system for performing transmission in a microwave band are both provided. The driving power is supplied from the writer to the card in a non-contact manner using the short-wave band and the microwave band.
Since data transmission by two transmission / reception systems is performed only during a period in which the driving power is supplied, data is transmitted using a plurality of frequency bands (short wave, microwave) to one card. It is possible to use a single card for multiple applications such as transmitting and receiving data at a short distance of about 10 cm, and requiring a long distance of about 1 m. As a result, an efficient wireless card system can be obtained, and a secondary battery in the card is not required, so that the card can be reduced in cost and weight.

According to the present invention, data transmission by the transmission / reception system using the short-wave band is performed only during the period in which the driving power of the card is supplied using the short-wave band, and data transmission / reception by the transmission / reception system using the microwave band is performed. Since the transmission is performed only during the period when the driving power of the card is supplied using the microwave band, the transmission and reception of data using the short wave band only during the period when the driving power is supplied in the short wave band. The transmission and reception of data using the microwave band are performed only during the period in which the driving power is supplied in the microwave band, so that the driving power can be supplied only to the necessary transmission / reception system, There is an effect that an efficient wireless card system can be obtained.

According to the present invention, the transmission / reception system for performing data transmission using the short-wave band and the transmission / reception system for performing transmission using the microwave band are configured to be set by the selection switch provided in the card. Therefore, since it is possible to block data in a frequency band different from the intended use, when transmitting / receiving data to / from a single card that can be used for multiple uses, It is possible to prevent transmission and reception of data in applications other than the above-mentioned applications, and to obtain an efficient and secure wireless card system.

According to the present invention, the switch information of the selection switch set on the card is read in advance by the reader / writer to determine whether the data transmission is performed by the transmission / reception system using the microwave band or the transmission / reception system using the short wave band. , So that the reader / writer determines the application based on the code of the switch information set by the selection switch, and performs data transmission using the microwave band or using the short wave band. Since it is possible to perform the separation, there is an effect that an efficient wireless card system can be obtained.

According to the present invention, a detector is provided to detect the presence or absence of a card based on whether or not the card has entered a range in which data can be transmitted / received. When the detector detects that the card has entered the range in which data can be transmitted and received, the writer always starts supplying power to the card. Unlike the case in which the power is supplied, the power supplied by the writer can be saved, and an effective wireless card system can be obtained.

According to the present invention, information from a plurality of reader / writers is read, the plurality of reader / writers and the plurality of writers are controlled by the control device based on the information, and the information obtained by the control device is displayed on the display device. Because it is configured to display, information that can be read by multiple reader / writers in the facility can be managed and grasped collectively, and it is possible to adjust functions such as stopping power supply from the writer as necessary As a result, there is an effect that an efficient wireless card system that can view the entire facility and has low power loss can be obtained.

According to the present invention, application software is read by the control device, and based on the read information, it is determined whether data transmission is to be performed by the microwave transmission / reception system or shortwave transmission / reception system. With this configuration, it is possible to automatically switch the frequency band of data transmitted and received between the reader / writer and one card only by changing the application software that operates the control device. There is an effect that a system can be obtained.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a configuration of a wireless card system according to Embodiment 1 of the present invention.

FIG. 2 is an explanatory diagram showing a signal flow according to the first embodiment of the present invention.

FIG. 3 is a block diagram showing a configuration of a wireless card system according to Embodiment 2 of the present invention.

FIG. 4 is an explanatory diagram showing a signal flow according to the second embodiment of the present invention.

FIG. 5 is a flowchart showing a processing flow of a wireless card system according to Embodiment 3 of the present invention.

FIG. 6 is a block diagram showing a configuration of a wireless card system according to Embodiment 4 of the present invention.

FIG. 7 is an explanatory diagram showing a signal flow in Embodiment 4 of the present invention.

FIG. 8 is a block diagram showing a configuration of a wireless card system according to Embodiment 5 of the present invention.

FIG. 9 is an explanatory diagram showing a signal flow according to the fifth embodiment of the present invention.

FIG. 10 is a block diagram showing a configuration of a wireless card system according to Embodiment 6 of the present invention.

FIG. 11 is an explanatory diagram showing a signal flow according to the sixth embodiment of the present invention.

FIG. 12 is a block diagram showing a configuration of a wireless card system according to Embodiment 7 of the present invention.

FIG. 13 is an explanatory diagram showing a signal flow according to the seventh embodiment of the present invention.

FIG. 14 is a block diagram showing a configuration of a wireless card system according to Embodiment 8 of the present invention.

FIG. 15 is an explanatory diagram showing a signal flow according to the eighth embodiment of the present invention.

FIG. 16 is a block diagram showing a configuration of a wireless card system according to Embodiment 9 of the present invention.

FIG. 17 is an explanatory diagram showing a signal flow in the ninth embodiment of the present invention.

FIG. 18 is a block diagram showing a configuration of a wireless card system according to Embodiment 10 of the present invention.

FIG. 19 is an explanatory diagram showing a signal flow in the tenth embodiment of the present invention.

FIG. 20 is a block diagram showing a configuration of a wireless card system according to Embodiment 11 of the present invention.

FIG. 21 is an explanatory diagram showing a signal flow in the eleventh embodiment of the present invention.

FIG. 22 is a block diagram showing a configuration of a wireless card system according to Embodiment 12 of the present invention.

FIG. 23 is an explanatory diagram showing a signal flow in the twelfth embodiment of the present invention.

FIG. 24 is a block diagram showing a configuration of a wireless card system according to Embodiment 13 of the present invention.

FIG. 25 is an explanatory diagram showing a signal flow in Embodiment 13 of the present invention.

FIG. 26 is a block diagram showing a configuration of a wireless card system according to Embodiment 14 of the present invention.

FIG. 27 is an explanatory diagram showing a signal flow in the fourteenth embodiment of the present invention.

FIG. 28 is a block diagram showing a configuration of a wireless card system according to Embodiment 15 of the present invention.

FIG. 29 is an explanatory diagram showing a signal flow in Embodiment 15 of the present invention.

FIG. 30 is a block diagram showing a configuration of a wireless card system according to Embodiment 16 of the present invention.

FIG. 31 is an explanatory diagram showing a signal flow in the sixteenth embodiment of the present invention.

FIG. 32 is a block diagram showing a configuration of a wireless card system according to Embodiment 17 of the present invention.

FIG. 33 is an explanatory diagram showing a signal flow in Embodiment 17 of the present invention.

FIG. 34 is a block diagram showing a configuration of a wireless card system according to a conventional example.

[Explanation of symbols]

1,4 card, 2,5,7 Reader / writer, 3,3
a, 3b, 6, 6a, 6b, 8, 8a, 8b Writers,
11 power supply circuit (drive power supply system, first drive power supply system), 12 short-wave power modulator (drive power supply system,
1st drive power supply system), 13 and 14 antennas (drive power supply system, first drive power supply system), 15 short-wave power supply circuit (drive power supply system, 1st drive power supply system), 3
1 modulator for short wave (first data transmission system, data transmission system), 32 demodulator for short wave (first data transmission system, data transmission system), 33 RF circuit for short wave (first data transmission system, data Transmission system), 34 antennas (first data transmission system, data transmission system), 35 microwave modulator (second
Data transmission system, data transmission system), 36 Microwave demodulator (second data transmission system, data transmission system), 37
RF circuit for microwave (second data transmission system, data transmission system), 38 antennas (second data transmission system, data transmission system), 39 antennas (first data transmission system, data transmission system), 40 modulation (First data transmission system, data transmission system), 41 demodulator (first data transmission system, data transmission system), 42 antenna (second data transmission system, data transmission system), 43 modulator (second data transmission system, data transmission system) 2 data transmission system, data transmission system), 44 demodulator (second data transmission system, data transmission system), 45 selection switch, 46, 46a, 4
6b detector, 48 control device, 49 display device, 50
Application software, 51 power supply circuit (second
, 52 microwave power supply modulator (second drive power supply system), 53, 54 antenna (second drive power supply system), 55 microwave power supply circuit (second drive power supply) Supply system).

 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 5B035 AA00 BB09 CA12 CA23 5B058 CA15 CA22 5K012 AB02 AB05 AB12 AB18 AB20 AC07 AC09 AC11 AE04 AE13 BA03 BA07

Claims (10)

[Claims] 1. A non-contact transmission / reception of data between a card storing data and the card to acquire data stored in the card and to store data in the card. In a wireless card system including a reader / writer, and a writer for supplying drive power of the card in a non-contact manner, transmission of data from the reader / writer to the card,
Transmission of data from the card to the reader / writer,
A first data transmission system both using a short wave band, and transmission of data from the reader / writer to the card;
Transmission of data from the card to the reader / writer,
A second data transmission system, both using a microwave band, and a drive power supply system for supplying power for driving the card from the writer to the card in a short wave band; Drive power is determined by the drive power supply system,
Only during the period when the card is supplied from the writer,
A wireless card system for transmitting data by the first data transmission system and the second data transmission system. 2. A non-contact transmission / reception of data between a card storing data and the card to obtain data stored in the card and store data in the card. In a wireless card system including a reader / writer and a writer for supplying the driving power of the card in a non-contact manner, transmission of data from the reader / writer to the card is performed using a microwave band, and A data transmission system for transmitting data to a reader / writer using a short wave band, and a driving power supply system for supplying power for driving the card to the card in a short wave band from the writer; The drive power of the card is controlled by the drive power supply system,
Only during the period when the card is supplied from the writer,
A wireless card system, wherein data is transmitted by the data transmission system. 3. A non-contact transmission / reception of data between a card storing data and the card to obtain data stored in the card and to store data in the card. In a wireless card system including a reader / writer and a writer for supplying drive power of the card in a non-contact manner, data is transmitted from the reader / writer to the card using a short wave band, and the reader is transmitted from the card to the reader. A data transmission system for transmitting data to the writer using a microwave band, and a driving power supply system for supplying power for driving the card in a short wave band from the writer to the card; The drive power of the card is controlled by the drive power supply system,
Only during the period when the card is supplied from the writer,
A wireless card system, wherein data is transmitted by the data transmission system. 4. A non-contact transmission / reception of data between a card storing data and the card to acquire data stored in the card and to store data in the card. In a wireless card system including a reader / writer, and a writer for supplying drive power of the card in a non-contact manner, transmission of data from the reader / writer to the card,
Transmission of data from the card to the reader / writer,
A first data transmission system both using a short wave band, and transmission of data from the reader / writer to the card;
Transmission of data from the card to the reader / writer,
A second data transmission system both using a microwave band, a first drive power supply system for supplying the card driving power to the card in a short wave band from the writer, A second drive power supply system for supplying drive power in a microwave band from the writer to the card, wherein the drive power of the card is the first drive power supply system or the second drive power supply system. A wireless card system wherein data is transmitted by the first data transmission system and the second data transmission system only during a period in which a drive power supply system supplies a card from a writer. 5. A short-wave band data transmission using the first data transmission system is performed only during a period in which the driving power of the card is supplied from the writer to the card using the first driving power supply system. Transmitting data in the microwave band using the second data transmission system only during a period in which the driving power of the card is supplied from the writer to the card using the second driving power supply system. The wireless card system according to claim 4, wherein: 6. A card in which a selection switch for separating a first data transmission system for transmitting data using a short-wave band and a second data transmission system for transmitting data using a microwave band is provided. The wireless card system according to claim 1, wherein the wireless card system is a wireless card system. 7. The switch information of a selection switch set by a card is read in advance by a reader / writer, and the information is used to transmit data in a first data transmission system using a short-wave band or to use a microwave band. 7. The wireless card system according to claim 6, wherein whether the data is transmitted by the second data transmission system is determined. And a detector for detecting the presence / absence of the card based on whether or not the card has entered a data transmission / reception range. When the detector detects that the card is present, the writer sends the card to the card. The wireless card system according to any one of claims 1 to 5, wherein power for driving the card is supplied through the wireless card system. 9. A control device for reading information obtained from a plurality of reader / writers, controlling the plurality of reader / writers and the plurality of writers based on the read information, and displaying information obtained by the control device. The wireless card system according to any one of claims 1 to 5, further comprising a display device. 10. Reading application software,
Based on the read information, data transmission between the reader / writer and the card is performed in a first data transmission system using a short-wave band or in a second data transmission system using a microwave band. The wireless card system according to any one of claims 1, 4, and 5, further comprising a control device for determining whether the wireless card is a wireless card.