JP3201245B2 - Cordless phone system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To simplify the operation of registering a salve set in a master set by using a storage medium capable of inserting to, recording in and reading out of both the master and slave sets in common. SOLUTION: In the cordless telephone system consisting of a master set and plural slave sets, the master set is provided with a RAM 37 for storing identification (ID) codes for identifying respective slave sets and a slot 15 capable of inserting a memory card which can be inserted into a slave set. When a memory card 25 is inserted into the slot 15 in the master set, a detection part 36 detects the insertion and a control part 31 judges whether the ID code stored in the memory card 25 is stored also in the RAM 37 or not. At the time of judging NO, the ID code stored in the memory card 25 is stored in the RAM 37 and a slave set is newly registered. Consequently the registration of a slave set in the master set can be simplified and a message addressed only to the registered slave set can easily be received.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cordless telephone system including a master unit and a plurality of slave units.

[0002]

2. Description of the Related Art Cordless telephone systems have heretofore been widely and widely used. Such a cordless telephone system has a master unit and a plurality of slave units. You can talk to any other party you want.

In this type of cordless telephone system, the system can be expanded by additionally registering a slave unit, but complicated registration operations are performed on both the master unit and the slave unit at the time of the registration. There was a problem that had to be performed.

Further, when newly registering the above-mentioned slave unit, it is necessary to share the speed dial data between the master unit and the newly registered slave unit to be additionally registered. Was to spur.

The absence recording function in a conventional digital cordless telephone is simply for recording a message or the like from an outside line using a storage medium such as a memory or a micro tape provided in a base unit. No consideration is given to the confidentiality of messages in the system, and for example, it does not have a function of recording messages addressed to a specific child device and transferring the recorded message only to the child device when necessary. Therefore, the usability of the registered handset was also poor.

[0006]

As described above, the conventional cordless telephone system has a problem that the setting operation required for additional registration of a slave unit is complicated, and the usability of the registered slave unit is poor.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and has as its object to facilitate the setting operation required for registration of a slave unit and to have a scalability, and to use the registered slave unit. It is an object of the present invention to provide a cordless telephone system which is excellent in usability, such as accepting a message addressed only to the slave unit.

[0008]

According to the first aspect of the present invention,
In a cordless telephone system including a master unit and a slave unit, the master unit includes storage means for storing an identification code for identifying the slave unit, and an insertion unit for inserting a storage medium insertable into the slave unit. However, when the storage medium is inserted into the insertion portion, this is detected, and it is determined whether or not the identification code stored in the storage medium is stored in the storage means. It is characterized in that the identification code of the storage medium is stored in the storage means and the slave unit is registered.

With this configuration, the registration can be completed simply by inserting the storage medium mounted on the slave unit to be newly registered into the insertion section of the master unit to be registered. Therefore, the setting operation required for registering the slave unit can be made extremely easy.

According to a second aspect of the present invention, in the first aspect of the present invention, when the identification code stored in the storage medium inserted in the master unit is stored in the storage means, It is characterized in that data is transferred between the medium and the storage means to share the data.

With this configuration, in addition to the operation of the first aspect of the present invention, for example, sharing of data relating to abbreviated dialing and the like also allows the storage medium mounted on the slave unit to be registered in the master unit. It can be easily performed simply by inserting it into the insertion portion of

According to a third aspect of the present invention, in the first aspect of the present invention, the master unit has a memory for storing data for each of the identification codes, and corresponds to an identification code of a storage medium inserted into the insertion section. Data to be read from the memory and transferred to the inserted storage medium.

With such a configuration, in addition to the operation of the first aspect of the present invention, necessary data for each identification code of the child device is stored in the memory of the parent device, and the insertion portion of the child device is stored in the insertion section. When the storage medium is inserted, the data stored in accordance with the identification code is transferred to the storage medium. Therefore, the transferred data is reproduced by the slave unit, thereby ensuring the confidentiality of the data even in the system. It is possible to easily transmit and receive data while doing so.

According to a fourth aspect of the present invention, in the third aspect of the present invention, the data is audio data converted into a digital signal. With such a configuration, in addition to the operation of the third aspect of the invention, in particular, voice data such as a message message recorded by the absence recording function is transferred to the storage medium of the corresponding slave unit.
Even in the system, the message recording function can be easily used while securing the confidentiality of the message.

According to a fifth aspect of the present invention, in the first aspect of the present invention, the storage medium is an electrically rewritable nonvolatile memory. With such a configuration, in addition to the operation of the invention described in claim 1, the secondary battery is used as an operation power supply because a nonvolatile memory that does not erase stored contents without performing power supply backup is used as a storage medium. It is particularly suitable for cordless telephone system handsets whose power consumption is limited and its size and weight are limited for portable use. Since a large reproducing mechanism such as that described above is not required, it is possible to reduce the size and weight and to reduce the power consumption.

[0016]

BEST MODE FOR CARRYING OUT THE INVENTION

(First Embodiment) A first embodiment in which the present invention is applied to a cordless telephone system will be described below with reference to the drawings.

FIG. 1 shows the system configuration, which is assumed to be composed of one master unit A and four slave units B1 to B4. Base unit A is connected to telephone line L, and reception and transmission of a call (so-called outside line call) via telephone line L are all performed by base unit A. The slave units B1 to B4 are wirelessly connected to the antenna 4 of the master unit A via an antenna 24, which will be described later, and external line communication is performed via the master unit A by wireless.

Base unit A includes handset 11, display unit 1
2, a dial key unit 13, an antenna 14, and a memory card slot 15 for inserting and mounting a memory card 25 to be described later. The display unit 12 has a dial key.
It displays a telephone number and the like input from the unit 13.

On the other hand, the slave units B1 to B4
It has a display section 22, a dial key section 23, an antenna 24, and a memory card slot 26 for inserting and mounting a memory card 25.

The display unit 22 displays a short code input from the dial key unit 23, a name corresponding to the short code,
It displays a telephone number and the like. FIG. 2 shows a circuit configuration of the base unit A. The base unit A has a normal telephone function,
In particular, it has a speed dial function of dialing by a corresponding telephone number only by designating a speed code in accordance with stored speed code data.

Here, the display unit 12, the dial key unit 13
Is connected to the control unit 31, and the handset 11 is connected to the control unit 31 via the communication network control unit 32.
The antenna 14 is connected to the wireless circuit 33. The wireless circuit 33 is connected to the control unit 31 via the baseband unit 34 and is directly connected to the control unit 31.

The control unit 31 controls the operation procedure of the radio circuit 33, controls the radio channel, controls the display unit 12 to visually display the telephone number and the like when making a call to the user. The user performs audible notification control such as a ring tone upon receiving an incoming call to the user.

The control unit 31 controls the procedure of the telephone line L through the communication network control unit 32. The control unit 31 uses a CPU that is superior in terms of high-speed operation, low current consumption, and low-voltage operation in order to improve the ease of use for the user.

The communication network control unit 32 connects the telephone line L, and includes an incoming call detection circuit, a dial pulse control circuit,
It is composed of a speech network, a DTMF signal generation circuit and the like, and controls the telephone line L such as incoming call detection, dial transmission, and communication.

The radio circuit 33 has a transmitting function and a receiving function. The transmitting function frequency-modulates the transmission signal, amplifies the power and transmits the signal as a radio wave from the antenna 14, and the receiving function is the slave units B1 to B1. A radio wave from the B4 antenna 24 is received by the antenna 14, amplified, frequency converted, demodulated, and output as a reception signal. In addition, the radio circuit 33 determines the free state of the control channel and the communication channel before emitting the radio wave.

The base band section 34 is used for transmitting and receiving data.
It performs band processing and has a compander transmission circuit, pre-emphasis, limiter, and splatter filter for transmission, and a filter for voice / data demodulation signal, de-emphasis, compander reception circuit, etc. for reception. ing.

The compander is a circuit for compressing and transmitting the level fluctuation of the audio signal on the transmitting side and expanding the level fluctuation on the receiving side so as to have the original level fluctuation in order to improve the S / N of the radio transmission path. is there.

In the pre-emphasis and de-emphasis, in order to reduce a noise component in a high frequency band generated in a wireless transmission path, the transmitting side emphasizes the high frequency band of the voice and transmits the signal, and the receiving side restores the original signal. This is a circuit that converts the frequency characteristics into

The transmission limiter and splatter filter are provided so as not to disturb the adjacent channel, and are a circuit for limiting a modulation signal to remove a harmonic component in order to keep a frequency shift below a certain value. is there.

The control section 31 includes a ROM 35 storing an operation control program, a memory card 25 mounted in the memory card slot 15, a detection section 36,
The RAM 37 and the collating unit 38 are connected.

The detecting unit 36 is connected to the memory card slot 15
And detects whether the memory card 25 has been inserted or inserted, and sends a detection signal to the control unit 31.

The RAM 37 stores a slave unit ID as shown in FIG.
Registration memory area IM, slave unit telememo data memory area I
It comprises a TM and a telememo data memory area MM. The child device ID registration memory area IM is an area for storing ID codes of the child devices B1 to B4 registered as child devices.

The handset telememo data memory area ITM is:
As shown in FIG. 4, this is an area for storing a plurality of sets of abbreviated code, the name of the other party, and telephone number data as one set of abbreviated code data for each registered ID code of the child device.

As shown in FIG. 5, the telememo data memory area MM is an area for storing a plurality of sets of abbreviated codes for the base unit A itself, the name of the other party and telephone number data as one set of abbreviated code data. It is.

When the memory card 25 of each of the slave units B1 to B4 is inserted into and inserted into the memory card slot 15 and an ID code is input, the matching unit 38 stores the ID code in the slave unit ID registration memory area of the RAM 37. It is to check whether or not it is registered in the IM.

The base unit A has a power supply circuit 39. The power supply circuit 39 is connected to a commercial AC1 by a power supply code 40.
It is connected to a 00V power supply to supply power. FIG. 6 is a block diagram showing a circuit configuration of the slave units B1 to B4.

As shown in the figure, the transmission / reception unit 21, the display unit 22, and the dial key unit 23 are connected to a control unit 41. The antenna 24 is connected to a wireless circuit 42. The wireless circuit 42 is connected to the control unit 41 via the baseband unit 43 and is also directly connected to the control unit 41.

The control unit 31 controls the operation of the radio circuit 42 and controls the radio channel, controls the display unit 22 to control the visual display of the telephone number and the like when making a call to the user. An audible notification control such as a ring tone at the time of an incoming call is performed to the user by a speaker that does not.

The radio circuit 42 has the antenna 24 for transmitting and receiving radio waves to and from the master unit A. The function of the antenna 24 is similar to that of the radio circuit 33 of the master unit A. After the transmission function frequency-modulates the transmission signal,
The power is amplified and transmitted as a radio wave from the antenna 24, and the reception function receives the radio wave from the antenna 14 of the base unit A with the antenna 24, amplifies, converts the frequency, demodulates, and outputs it as a reception signal.

The operation of the base band section 43 is similar to that of the base band section 34 of the base unit A, and performs the base band processing at the time of transmission / reception. It has an emphasis, limiter, and splatter filter, and has a voice / data demodulation signal filter for reception, a de-emphasis, a compander reception circuit, and the like.

The controller 41 further includes a memory card 2 mounted in the memory card slot 26.
5, the detection unit 44, and the RAM 45 are connected. The detection unit 44 detects whether or not the memory card 25 is inserted into and inserted into the memory card slot 26, and the detection signal is sent to the control unit 41.

The memory card 25 to be inserted into the memory card slot 26 is a package in which an electrically rewritable nonvolatile memory such as an EEPROM is sealed in a package. As shown in FIG. IM,
It consists of a telememo data memory area TM and a master unit telememo data memory area MM.

The ID registration memory area IM is an area for storing an ID code of, for example, four digits of the slave unit.
As shown in FIG. 8, the tele memo data memory area TM includes a shortened code, a name of a destination, and a telephone number (FIG. 8 illustrates the tele memo data memory area TM of the memory card 25 attached to the slave unit B1). This area stores a plurality of sets of data as one set of shortened code data.

Master unit telememo data memory area MM
Is an area for storing a plurality of sets of abbreviated codes transferred from the master unit A, names of destinations, and telephone number data. Further, the slave units B1 to B4 include a power supply circuit 46,
The power supply circuit 46 distributes and supplies power from a secondary battery, which is charged by a charger (not shown), to each of the circuits under the control of the control unit 41.

Next, the operation of the first embodiment will be described. Now, for example, the slave unit B is already
2 to B4 have already been registered, and the child device B1 is newly registered as a child device. When registering the slave unit, an operation of extracting the memory card 25 inserted in the memory card slot 26 of the slave unit B1 to be registered, inserting the memory card into the memory card slot 15 of the master unit A to be registered, and inserting the same is performed. Do. At this time, the ID code “111” of the slave unit B1 is stored in the ID registration memory area IM of the memory card 25.
"1" is assumed to store the shortened code data shown in FIG. 8 in the telememo data memory area TM.

FIG. 9 shows a processing procedure for registering a slave unit mainly performed by the control unit 31 on the master unit A side.
Initially, after waiting for a certain time (step S1),
The operation of determining whether or not a detection signal when the memory card 25 is inserted into the memory card slot 15 from the detection unit 36 is input (step S2) is repeatedly executed.

When it is determined in step S2 that the detection signal has been input, the memory card slot 15
ID registration memory area I of the memory card 25 inserted in the
The ID code stored in M is read, and the collating unit 38 collates the ID code with the ID code of the already registered child device stored in the child device ID registration memory area IM of the RAM 37 (step S3).

Here, the ID codes of the already registered slave units stored in the slave unit ID registration memory area IM of the RAM 37 are the respective ID codes “2222” and “3” of the slave units B2 to B4.
333 "and" 4444 ".

The collation unit 38 collates these ID codes with the ID codes read from the memory card 25, and determines whether or not there is a match, so that the memory card 25 mounted in the memory card slot 15 has already been registered. (Step S).
4).

Only when it is determined that the ID has not been registered, the ID code read from the memory card 25 is registered and set in the child unit ID registration memory area IM (step S5). Is not registered in the child device ID registration memory area IM of the RAM 37, and is newly registered in step S5.

Then, the shortened code data stored in the telememo data memory area TM of the memory card 25 is
The shortened code data of the master unit A stored in the slave unit's telememo data memory area MM of the AM 37 and the master unit A's shortened code data stored in the telememo data memory area MM of the RAM 37 are mutually transferred to the master unit's telememo data memory area MM of the memory card 25. It is determined whether or not (step S6).

For example, this is displayed on the display unit 12 as “Do you want to transfer the shortened code data? YES → * NO → #
"Please press." Is displayed, and it is determined whether the "*" key or the "#" key of the dial key unit 13 is actually operated. When the key is operated and it is determined that the transfer of the abbreviated code data is not to be performed, the series of processing is completed.

If the "*" key is operated and it is determined that the abbreviated code data is to be transferred, then the collating unit 38 firstly executes the abbreviated code stored in the telememo data memory area TM of the memory card 25. One set of data is read out and compared with the shortened code data of the master unit A stored in the telememo data memory area MM of the RAM 37 (step S7), and after confirming that there is no data having the same shortened code (step S7). Step S8), RAM 37
Is registered together with the ID code of the child device corresponding to the child device telememo data memory area ITM, and a short code is set (step S9).

In this case, the shortened code in the one set of shortened code data read from the telememo data memory area TM of the memory card 25 by the collating unit 38 in step S8 is RA.
If it is determined that the code matches the shortened code data of the master unit A stored in the telememo data memory area MM of M37, the above-described step S9 is performed in accordance with the signal from the matching unit 38.
The registration of the abbreviated code data and the setting of the abbreviated code are not performed.

Thereafter, it is determined from the signal from the collating unit 38 whether or not all collation of the abbreviated code data to be transferred has been completed (step S10). If it is determined that the collation has not been completed, the process returns to step S7 again. Then, the next one set of shortened code data stored in the telememo data memory area TM of the memory card 25 is read out, and the shortened code data read out from the memory card 25 is similarly read out from the RAM 37 only when the shortened codes do not match. The process of transferring the data to the sub-unit telememo data memory area ITM is repeated.

When the reading of the shortened code data stored in the telememo data memory area TM of the memory card 25 is completed, the shortened code data of the master unit A stored in the telememo data memory area MM of the RAM 37 is next obtained. Is read out and compared with the shortened code data of the slave unit B1 stored in the telememo data memory area TM of the memory card 25 (step S7), and after confirming that there is no data whose shortened code matches. (Step S
8) Register in the main unit telememo data memory area MM of the memory card 25 and set a shortening code (step S)
9).

Also in this case, the RAM 37 is used in step S8.
The slave unit B1 stores the shortened code in one set of the shortened code data read out from the telememo data memory area MM in the telememo data memory area TM of the memory card 25.
If it is determined that they match the short code data, the registration of the short code data and the setting process of the short code in step S9 are not performed.

Thereafter, it is determined whether or not the collation of the shortened code data to be transferred has been completed (step S1).
0), if it is determined that the processing has not been completed,
7, returning to the telememo data memory area M of the RAM 37.
M. The next set of abbreviated code data stored in M is read, and similarly, if the abbreviated codes do not match, R
The processing of transferring the shortened code data read from the telememo data memory area MM of the AM 37 to the master telememo data memory area MM of the memory card 25 is repeatedly performed.

When the reading of all the shortened code data stored in the base unit telememo data memory area MM of the RAM 37 is completed, the memory card 25 and the RA
Since the mutual transfer of the shortened code data between M37 has been completed, the processing of FIG. 9 ends.

In this manner, the registration of the slave unit B1 can be completed only by inserting and inserting the memory card 25 of the slave unit B1 to be registered into the memory card slot 15 of the master unit A. At the same time, in response to an instruction by a simple key operation, the shortened code data stored in the telememo data memory area MM of the RAM 37 of the base unit A and the slave B1 stored in the telememo data memory area TM of the memory card 25 are displayed. Data whose abbreviated code does not overlap with the abbreviated code data can be mutually set for transfer.

(Second Embodiment) A second embodiment in which the present invention is applied to a cordless telephone system will be described with reference to the drawings.

Since the configuration of the entire system is the same as that of FIG. 1, the same parts are denoted by the same reference numerals and their illustration and description are omitted. FIG. 10 shows a circuit configuration of the base unit A. In addition to the normal telephone function, the base unit A transmits a message message by voice data recorded for each of the slave units B1 to B4 via the memory card 25 in particular. And has an absence recording function for transferring to the child device.

In FIG. 10, the basic configuration is almost the same as that shown in FIG. 2, and therefore, the same portions are denoted by the same reference characters and description thereof is omitted. And
In addition to the RAM 37, a voice memory 51 for storing voice data of a message message recorded by absence is connected to the control unit 31.

As shown in FIG. 11, the voice memory 51 stores voice data of a message message digitized in correspondence with the ID code of the slave unit including the master unit itself, sequentially up to a predetermined number, for example, up to 30 messages. Things.

The ID code “0000” in FIG.
"1111" and "2222" indicate the handset units B1 and B2. These ID codes are used by the caller to operate the key operation of the ID code addressed to each handset unit at the beginning of the message message input in the answering message of the answering machine. And the caller operates the corresponding dial key. If the dial key is not operated, the ID code of the base unit A is automatically set to "0".
000 ”instead of input setting.

The communication network control unit 32 of the master unit A includes a digitizing circuit including an A / D converter for digitizing audio data, a DTMF signal in addition to the circuit configuration described in FIG. A detection circuit and the like will be included.

The circuit configuration of the slave units B1 to B4 is also substantially the same as that shown in FIG. 6, so that the same parts are denoted by the same reference numerals and their illustration and description are omitted.

As shown in FIG. 7, the memory card 25 'inserted into the memory card slot 26 of each of the slave units B1 to B4 has an ID registration memory area IM and a voice data memory for storing voice data of a message. Region V
D.

The control unit 31 of each of the slave units B1 to B4 has a voice synthesizing circuit for converting the digital voice data read from the memory card 25 'into analog data and outputting the analog data from the transmission / reception unit 21.

Next, the operation of the second embodiment will be described. Now, as shown in FIG. 11, the voice memory 51 of the main unit A has already stored the voice data of a large number of message messages by the absence recording function, and the memory card slot of the handset B1 has been used to retrieve the stored voice data. It is assumed that the memory card 25 'mounted on the base unit 26 is removed, inserted into the memory card slot 15 of the master unit A, and mounted.

FIG. 13 shows a processing procedure for the registration of the slave unit and the transfer of the voice data mainly performed by the control unit 31 on the master unit A side, and the processing relating to the registration of the slave unit from the initial step S1 to step S5. The content itself is shown in FIG.
Therefore, the description is omitted.

After completion of the process, regardless of whether or not the handset registration has been performed, the voice data of the message stored in the voice memory 51 is transferred to the memory card 25 ′ inserted in the memory card slot 15. It is determined whether or not to transfer to (step S11).

This is, for example, displayed on the display unit 12 as “Slave device
Do you want to transfer the message to the memory card of ○? "YES → * NO → press #", and then press the dial key.
The determination is made based on whether the “*” key or the “#” key of the unit 13 is operated. In the above-mentioned message, the ID code of the slave read from the memory card 25 'in step S3, for example, "11
11 "is entered.

Here, when the "#" key is operated and it is determined that the voice data is not to be transferred, the series of processing is terminated. If the "*" key is operated and it is determined that the voice data is to be transferred, subsequently, the voice data stored in the voice memory 51 to which the corresponding ID code is attached is searched ( Step S12).

As a result of this search, it is determined whether or not there is voice data corresponding to voice memory 51 (step S1).
3) If this is not done, the transfer cannot be performed, so this series of processing is terminated. If there is, all the voice data of the message message with the corresponding ID code is added as needed. Read, memory card 2
The data is transferred to the voice data memory area VD of 5 '(step S14), and the processing of FIG. 9 is completed.

In this way, the child device B1 is registered simply by inserting and inserting the memory card 25 'of the child device B1 into the memory card slot 15 of the parent device A, and in response to an instruction by a simple key operation. Voice memory 51 of master A
Can be transferred to the memory card 25 '.

Therefore, for example, if it is assumed that the master unit A can reproduce only the audio data with the ID code "0000" corresponding to the master unit A in the voice memory 51, the audio data addressed to the slave unit B1 can be reproduced. Since the data is not reproduced by the master unit A, confidentiality of the voice data of the message message addressed to each of the slave units B1 to B4 can be ensured.

Although the first and second embodiments have been described as being merely applied to a cordless telephone system, the present invention is applicable to analog / digital signal formats of audio data transmitted over the telephone line L. Regardless, for example, P
It is needless to say that the present invention can be applied to an HS (personal handy phone system) or the like that includes a master unit as a general home base station and a plurality of slave units. In addition, the present invention can be implemented with various modifications without departing from the scope of the invention.

[0079]

As described above in detail, according to the present invention, the setting operation required for registration of a slave unit is easy, and the scalability is high, and a message addressed to only the slave unit is received using the registered slave unit. It is possible to provide a cordless telephone system which is excellent in usability.

[Brief description of the drawings]

FIG. 1 is a diagram showing a configuration of an entire system according to a first embodiment of the present invention.

FIG. 2 is a block diagram showing a circuit configuration of a master unit A according to the embodiment.

FIG. 3 is a diagram showing a memory area division in a RAM 37 of FIG. 2;

FIG. 4 is a view exemplifying a storage state of a child device telememo data memory area ITM in FIG. 3;

FIG. 5 is a diagram illustrating a storage state of a telememo data memory area MM (A) in FIG. 3;

FIG. 6 is a block diagram showing a circuit configuration of slave units B1 to B4 according to the embodiment.

FIG. 7 is a view showing a memory area division in the memory card 25 of FIG. 6;

8 is a telememo data memory area TM (B1) shown in FIG. 7;
The figure which illustrates the storage state of FIG.

FIG. 9 is a flowchart showing processing contents according to the embodiment;

FIG. 10 is a block diagram showing a circuit configuration of a parent device according to a second embodiment of the present invention.

11 is a view exemplifying a storage state of a voice memory 51 in FIG. 10;

FIG. 12 is a view showing a memory area division in a memory card 25 'according to the embodiment.

FIG. 13 is a flowchart showing processing contents according to the embodiment;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 11 ... Handset 12 ... Display part 13, 23 ... Dial key part 14, 24 ... Antenna 15, 26 ... Memory card slot 21 ... Transmission / reception part 22 ... Display part 25, 25 '... Memory card 31, 41 ... Control part 32 ... Communication network control units 33, 42 Radio circuits 34, 43 Base band unit 35 ROMs 36, 44 Detection units 37, 45 RAM 38 Collation units 39, 46 Power supply circuit 40 Power supply code 51 Voice memory A: master unit B1-B4: slave unit

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁷ , DB name) H04B ^7/ 24-7/26 102 H04Q ^7/ 00-7/38

Claims (5)

(57) [Claims] 1. A cordless telephone system comprising a master unit and a slave unit, wherein the master unit stores storage means for storing an identification code for identifying the slave unit, and a storage medium insertable into the slave unit. An insertion unit, which detects when the storage medium is inserted into the insertion unit, determines whether the identification code stored in the storage medium is stored in the storage unit, and stores the code. If not, a cordless telephone system wherein the identification code of the storage medium is stored in the storage means and the slave unit is registered. 2. When the identification code stored in the storage medium inserted in the master unit is stored in the storage means, data is transferred between the storage medium and the storage means. 2. The cordless telephone system according to claim 1, wherein data is shared. 3. The master unit includes a memory for storing data for each of the identification codes, reads data corresponding to the identification code of the storage medium inserted into the insertion section from the memory, and stores the data in the inserted storage medium. 2. The cordless telephone system according to claim 1, wherein the call is transferred. 4. The cordless telephone system according to claim 3, wherein the data is voice data converted into a digital signal. 5. The cordless telephone system according to claim 1, wherein said storage medium is an electrically rewritable nonvolatile memory.