CN112906408B - Contactless smart card and method of operating the same - Google Patents
Contactless smart card and method of operating the same Download PDFInfo
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- CN112906408B CN112906408B CN201911135645.5A CN201911135645A CN112906408B CN 112906408 B CN112906408 B CN 112906408B CN 201911135645 A CN201911135645 A CN 201911135645A CN 112906408 B CN112906408 B CN 112906408B
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
- G06K7/10—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation
- G06K7/10009—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves
- G06K7/10019—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves resolving collision on the communication channels between simultaneously or concurrently interrogated record carriers.
- G06K7/10029—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves resolving collision on the communication channels between simultaneously or concurrently interrogated record carriers. the collision being resolved in the time domain, e.g. using binary tree search or RFID responses allocated to a random time slot
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
- G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
- G06K19/067—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components
- G06K19/07—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips
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Abstract
The invention provides a non-contact smart card, which comprises a card body, a first integrated circuit, a second integrated circuit and a display element. The first integrated circuit is arranged on the card body. The first integrated circuit is used for receiving a request command from the reader and outputting a first response command to the reader. The second integrated circuit is arranged on the card body. The second integrated circuit is used for receiving the request command from the reader and delaying to output a second response command to the reader. The display element is arranged on the card body. The second integrated circuit delivers information to be displayed to the display element. The display element displays a picture according to information to be displayed. In addition, an operation method of the contactless smart card is also provided.
Description
Technical Field
The present invention relates to a smart card and an operating method thereof, and more particularly, to a proximity smart card (proximity smart card) and an operating method thereof.
Background
Nowadays, near-field communication integrated circuit (NFC IC) cards are rarely designed as dual NFC IC architectures, mainly because the trouble of communication is still avoided. If a dual NFC IC architecture is used in a card, an anti-collision mechanism is required to be used in the reader, so as to prevent the two NFC ICs from interfering with each other. Therefore, most users mostly use only a single NFC IC on their smart cards to avoid the complicated anti-collision mechanism and the problem that two NFC ICs will interfere with each other.
Disclosure of Invention
The invention provides a non-contact smart card and an operation method thereof. The non-contact type intelligent card has more than two NFC IC architectures and can avoid mutual interference among the NFC ICs.
The non-contact intelligent card comprises a card body, a first integrated circuit, a second integrated circuit and a display element. The first integrated circuit is arranged on the card body. The first integrated circuit is used for receiving a request command from the card reader and outputting a first response command to the card reader. The second integrated circuit is arranged on the card body. The second integrated circuit is used for receiving the request command from the reader and delaying to output a second response command to the reader. The display element is arranged on the card body. The second integrated circuit delivers information to be displayed to the display element. The display element displays a picture according to information to be displayed.
In an embodiment of the invention, the first integrated circuit outputs the first response command to the card reader after a first time, the second integrated circuit outputs the second response command to the card reader after a second time, and a duration of the second time is longer than a duration of the first time.
In an embodiment of the invention, the first ic is an ic to be read by a card reader, and the card reader communicates with the first ic after receiving the first response command.
In an embodiment of the invention, the second ic is an ic to be read by the card reader, and the card reader outputs a stop command to the first ic after receiving the second response command and communicates with the second ic.
In an embodiment of the invention, the second ic transmits information to be displayed to the display element in a wireless communication manner.
In an embodiment of the invention, the first integrated circuit and the second integrated circuit conform to the same contactless smart card standard.
In an embodiment of the invention, the first integrated circuit and the second integrated circuit conform to different contactless smart card standards.
In an embodiment of the invention, the contactless smart card further includes a third integrated circuit. The third integrated circuit is arranged on the card body. The third integrated circuit is used for receiving the request command from the card reader and delaying to output a third response command to the card reader.
In an embodiment of the invention, the second ic outputs a second response command to the card reader after the second time. The third integrated circuit outputs a third response command to the card reader after a third time. The time length of the second time is greater than or less than the time length of the third time.
In an embodiment of the invention, the third integrated circuit is an integrated circuit to be read by a card reader. The card reader communicates with the third integrated circuit after receiving the third response command.
In an embodiment of the invention, the second ic is an ic to be read by a card reader. The card reader outputs a stop command to the third integrated circuit after receiving the second response command, and communicates with the second integrated circuit.
In an embodiment of the invention, the display device is an electronic paper display device.
The operation method of the non-contact intelligent card comprises the following steps: receiving a request instruction from a card reader through a first integrated circuit and a second integrated circuit; outputting a first response instruction to the card reader through the first integrated circuit; delaying to output a second response command to the card reader through the second integrated circuit; and transmitting information to be displayed to the display element through the second integrated circuit to display a picture according to the information to be displayed through the display element.
In an embodiment of the invention, the first integrated circuit is an integrated circuit to be read by a card reader. The operating method further comprises: after outputting the first response command, the first integrated circuit communicates with the card reader.
In an embodiment of the invention, the second ic is an ic to be read by a card reader. The operating method further comprises: after the second response command is output, the second integrated circuit communicates with the card reader and transmits information to be displayed to the display element.
In an embodiment of the invention, the operating method further includes: receiving, by the third integrated circuit, a request instruction from the card reader; and delaying, by the third integrated circuit, output of the third response command to the card reader.
In an embodiment of the invention, the third integrated circuit is an integrated circuit to be read by a card reader, and the operating method further includes: after outputting the third response command, the third integrated circuit communicates with the card reader.
In an embodiment of the invention, the display device is an electronic paper display device.
Based on the above, in the embodiment of the invention, the second ic delays outputting the second response command to the card reader to avoid interference with the first ic.
In order to make the aforementioned and other features and advantages of the invention more comprehensible, embodiments accompanied with figures are described in detail below.
Drawings
Fig. 1 shows a schematic overview of a contactless smart card reading system according to an embodiment of the present invention;
FIG. 2 shows a schematic diagram of the contactless smart card of the embodiment of FIG. 1;
FIG. 3 is a schematic diagram illustrating a request command and a response command of the embodiment shown in FIGS. 1 and 2;
FIG. 4 is a flow chart illustrating steps in a method of operating a contactless smart card according to one embodiment of the invention;
FIG. 5 shows a schematic overview of a contactless smart card according to another embodiment of the invention;
FIG. 6 is a schematic diagram illustrating the request command and the response command in the embodiment of FIG. 5;
FIG. 7 is a flow chart illustrating steps in a method of operating a contactless smart card according to another embodiment of the invention;
fig. 8 shows a flow chart of steps of a method of operating a contactless smart card according to another embodiment of the invention.
The reference numbers indicate:
100: non-contact smart card
101: card body
102: first integrated circuit
103: second integrated circuit
105: third integrated circuit
104: electronic paper display element
200: card reader
300: reading system
ATR1, ATR2, ATR3: responding to the instruction
HALT: stop instruction
REQ: request instruction
S100, S110, S120, S130, S140, S150: method step
T1, T2, T3: time of day
Detailed Description
In the following, a number of embodiments are presented to illustrate the invention, however, the invention is not limited to the illustrated embodiments. Suitable combinations between the embodiments are also allowed. The term "coupled" as used throughout this specification, including the claims, may refer to any direct or indirect connection means. For example, if a first device couples to a second device, that connection may be through a direct connection, or through an indirect connection via other devices and some means of connection. Furthermore, the term "signal" may refer to at least one current, voltage, charge, temperature, data, electromagnetic wave, or any other signal or signals.
Fig. 1 is a schematic diagram of a contactless smart card reading system according to an embodiment of the present invention. Fig. 2 shows a schematic overview of the contactless smart card of the embodiment of fig. 1. Please refer to fig. 1 and fig. 2. The reading system 300 of the present embodiment includes a contactless smart card 100 and a card reader 200. The contactless smart card 100 is, for example, a Proximity Integrated Circuit Card (PICC), and the card reader 200 is, for example, a proximity coupling device (proximity coupling device). The contactless smart card 100 and the card reader 200 communicate with each other by a short-range wireless communication technology.
The contactless smart card 100 includes a card body 101, a first integrated circuit 102, a second integrated circuit 103, and an electronic paper display element 104. The first integrated circuit 102, the second integrated circuit 103, and the electronic paper display element 104 are provided on the card body 101. The first integrated circuit 102 is a commonly used NFC IC in the market, for example, an NFC IC conforming to contactless smart card standards such as EMV, mifare, and ISO 14443A/B. The first integrated circuit 102 is used for financial, transportation, and other stored value cards in general. The second integrated circuit 103 is an NFC IC in communication with the electronic paper display element 104. The NFC IC can be an NFC IC which conforms to the standards of contactless smart cards such as ISO 14443A/B and FeliCa. Therefore, the first integrated circuit 102 and the second integrated circuit 103 may conform to the same or different contactless smart card standards. The second integrated circuit 103 transmits information to be displayed to the electronic paper display element 104 mainly in a wireless communication manner. The electronic paper display element 104 displays a screen according to information to be displayed, for example, information received from the second integrated circuit 103.
In the present embodiment, the first integrated circuit 102 and the second integrated circuit 103 are configured to receive the request command REQ from the card reader 200. Upon receiving the request REQ, the first integrated circuit 102 outputs a first response command ATR1 to the card reader 200, and the second integrated circuit 103 delays outputting a second response command ATR2 to the card reader 200. In the present embodiment, an example of a manner of delaying the output of the second response command ATR2 by the second integrated circuit 103 is to provide a delay circuit in the second integrated circuit 103, and the delay circuit can be implemented by any delay circuit structure in the technical field, and the present invention is not limited thereto. Embodiments thereof are capable of giving full cognizance to teaching, suggestions, and descriptions of implementations that fall within the ordinary skill of the art.
Specifically, fig. 3 is a schematic diagram illustrating a request command and a response command of the embodiment shown in fig. 1 and 2. Referring to FIG. 3, the card reader 200 outputs a request REQ to the first integrated circuit 102 and the second integrated circuit 103. The first integrated circuit 102 outputs a first response command ATR1 to the card reader 200 after a first time T1 when receiving the request command REQ. If the first IC 102 is an IC to be read by the card reader 200, the card reader 200 directly communicates with the first IC 102 after receiving the first response command ATR 1.
On the other hand, if data is to be transmitted to the electronic paper display device 104, the first integrated circuit 102 receives the request command REQ and then returns the first response command ATR1, and the card reader 200 outputs the stop command HALT to the first integrated circuit 102 to stop the operation. The card reader 200 receives the delayed output second response command ATR2 and communicates with the second integrated circuit 103. Since the second IC 103 must delay outputting the second response command ATR2 to the card reader 200 to avoid collision, the second time T2 is longer than the first time T1.
Fig. 4 is a flow chart illustrating steps of a method of operating a contactless smart card according to an embodiment of the present invention. Referring to fig. 1 and fig. 4, the operation method of the present embodiment is at least applicable to the contactless smart card 100 of fig. 2, and the present invention is not limited thereto. Taking the contactless smart card 100 of fig. 2 as an example, in step S100, the contactless smart card 100 receives the request command REQ from the card reader 200 via the first integrated circuit 102 and the second integrated circuit 103. In step S110, the contactless smart card 100 outputs a first response command ATR1 to the card reader 200 via the first integrated circuit 102. In step S120, the contactless smart card 100 delays outputting the second response command ATR2 to the card reader 200 through the second integrated circuit 103. In step S130, the contactless smart card 100 transfers information to be displayed to the electronic paper display element 104 through the second integrated circuit 103 to display the information received from the second integrated circuit 103 through the electronic paper display element 104. In addition, the operation method of the contactless smart card according to the embodiment of the present invention can be obtained from the description of the embodiments of fig. 1 to 3 sufficiently to teach, suggest and implement the description.
In addition, the present invention can also be applied to a card body 101 having three or more integrated circuits.
Fig. 5 is a schematic diagram of a contactless smart card according to another embodiment of the present invention. The card body 101 of the present embodiment has a third integrated circuit 105. When the integrated circuit receives the request REQ from the card reader 200, the first integrated circuit 102 outputs a first response command ATR1 to the card reader 200, the second integrated circuit 103 delays outputting a second response command ATR2 to the card reader 200, and the third integrated circuit 105 delays outputting a third response command ATR3 to the card reader 200. If the third IC 105 is an IC to be read by the card reader 200, the card reader 200 receives the third response command ATR3 and then directly communicates with the third IC 102, and outputs a HALT command HALT to the first IC 102 to HALT the operation of the first IC. If data is to be transmitted to the electronic paper display device 104, the card reader 200 outputs a stop command HALT to the first integrated circuit 102 and/or the third integrated circuit 105 to stop the operation. The method for delaying the output of the response command of the integrated circuit includes: a delay circuit is provided in each of the second integrated circuit 103 and the third integrated circuit 105.
FIG. 6 is a schematic diagram illustrating a request command and a response command in the embodiment of FIG. 5. The third integrated circuit 105 outputs the third response command ATR3 to the card reader 200 after receiving the request command REQ for a third time T3, wherein the third time T3 may be longer than the first time T1 and shorter than the second time T2. Or the time length of the third time T3 may be greater than the time length of the second time T2. The range of the time length of the third time T3 may be set differently according to the function of the third integrated circuit 105.
Fig. 7 shows a flow chart of steps of a method of operating a contactless smart card according to another embodiment of the present invention. When the card body 101 has the third ic 105, in the embodiment of fig. 7, between step S110 and step S120, there is another step S140 that the contactless smart card 100 delays outputting the third response command ATR3 to the card reader 200 through the third ic 105.
Fig. 8 shows a flow chart of steps of a method of operating a contactless smart card according to another embodiment of the present invention. When the card body 101 has the third integrated circuit 105, in the embodiment of fig. 8, after the step S130, there is another step S150 in which the contactless smart card 100 delays outputting the third response command ATR3 to the card reader 200 through the third integrated circuit 105.
In summary, in the embodiment of the invention, the contactless smart card combines the electronic paper display device with the two NFC ICs, so that the trouble of parallel dual cards can be avoided. The dual NFC IC architecture utilizes the same or different communication protocols, one is an NFC IC for communicating with the electronic paper display device, and the other is an NFC IC commonly used in the market. The non-contact intelligent card can immediately confirm which integrated circuit the double NFC ICs act on, and can avoid complicated judgment and processing on an anti-collision mechanism.
In addition, the invention also provides an example of combining the electronic paper display element with more than three NFC ICs by the non-contact type smart card, wherein one is the NFC IC communicated with the electronic paper display element, and the other multiple are the NFC ICs commonly used in the market. The invention can be used for increasing the communication efficiency of the NFC IC and avoiding the complicated judgment and processing on an anti-collision mechanism in a non-contact type intelligent card with more than two NFC ICs.
Although the present invention has been described with reference to the above embodiments, it should be understood that various changes and modifications can be made therein by those skilled in the art without departing from the spirit and scope of the invention.
Claims (18)
1. A contactless smart card comprising:
a card body;
the first integrated circuit is arranged on the card body and used for receiving a request instruction from the card reader and outputting a first response instruction to the card reader;
the second integrated circuit is arranged on the card body and used for receiving the request command from the card reader and delaying to output a second response command to the card reader; and
and the display element is arranged on the card body, wherein the second integrated circuit transmits information to be displayed to the display element, and the display element displays pictures according to the information to be displayed.
2. The contactless smart card of claim 1, wherein the first integrated circuit outputs the first response command to the card reader after a first time, the second integrated circuit outputs the second response command to the card reader after a second time, and a length of time of the second time is greater than a length of time of the first time.
3. The contactless smart card of claim 1, wherein the first integrated circuit is an integrated circuit to be read by the card reader, the card reader communicating with the first integrated circuit upon receiving the first response command.
4. The contactless smart card of claim 1, wherein the second ic is an ic to be read by the card reader, and the card reader outputs a stop command to the first ic after receiving the second response command, and communicates with the second ic.
5. The contactless smart card of claim 1, wherein the second integrated circuit communicates information to be displayed to the display element in a wireless manner.
6. The contactless smart card of claim 1, wherein the first integrated circuit and the second integrated circuit conform to the same contactless smart card standard.
7. The contactless smart card of claim 1, wherein the first integrated circuit and the second integrated circuit conform to different contactless smart card standards.
8. The contactless smart card of claim 1, further comprising:
and the third integrated circuit is arranged on the card body and used for receiving the request command from the card reader and delaying to output a third response command to the card reader.
9. The contactless smart card of claim 8, wherein the second ic outputs the second response command to the card reader after a second time, the third ic outputs the third response command to the card reader after a third time, and a length of time of the second time is greater than or less than a length of time of the third time.
10. The contactless smart card of claim 9, wherein the third ic is an ic to be read by the card reader, and the card reader communicates with the third ic after receiving the third response command.
11. The contactless smart card of claim 9, wherein the second ic is an ic to be read by the card reader, and the card reader outputs a stop command to the third ic after receiving the second response command, and communicates with the second ic.
12. The contactless smart card of claim 1, wherein the display element is an electronic paper display element.
13. A method of operating a contactless smart card, wherein the contactless smart card includes a first integrated circuit, a second integrated circuit, and a display element, the method comprising:
receiving a request instruction from a card reader through the first integrated circuit and the second integrated circuit;
outputting a first response instruction to the card reader through the first integrated circuit;
delaying outputting a second response command to the card reader through the second integrated circuit; and
information to be displayed is transferred to the display element via the second integrated circuit to display a picture according to the information to be displayed via the display element.
14. The method of operating a contactless smart card of claim 13, wherein the first integrated circuit is an integrated circuit to be read by the card reader, the method of operation further comprising:
and after the first response instruction is output, communicating with the card reader through the first integrated circuit.
15. The method of operating a contactless smart card of claim 13, wherein the second integrated circuit is an integrated circuit to be read by the card reader, the method of operation further comprising:
after the second response command is output, the card reader is communicated with the card reader through the second integrated circuit, and information to be displayed is transmitted to the display element through the second integrated circuit.
16. The method of operating a contactless smart card of claim 13, wherein the contactless smart card further comprises a third integrated circuit, the method of operation further comprising:
receiving, by the third integrated circuit, the request instruction from the reader; and
and delaying the output of a third response instruction to the card reader through the third integrated circuit.
17. The method of operating a contactless smart card of claim 16, wherein the third integrated circuit is an integrated circuit to be read by the card reader, the method of operation further comprising:
and after the third response instruction is output, the third integrated circuit is communicated with the card reader.
18. The method of operating a contactless smart card of claim 13 wherein the display element is an electronic paper display element.
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| CN201911135645.5A CN112906408B (en) | 2019-11-19 | 2019-11-19 | Contactless smart card and method of operating the same |
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| CN201911135645.5A CN112906408B (en) | 2019-11-19 | 2019-11-19 | Contactless smart card and method of operating the same |
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| CN112906408B true CN112906408B (en) | 2022-12-13 |
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| US9042823B2 (en) * | 2012-06-07 | 2015-05-26 | Nokia Corporation | Method, apparatus, and computer program product for wireless short-range communication disconnection |
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| CN202084066U (en) * | 2011-04-29 | 2011-12-21 | 北京凡达讯科技有限公司 | Electronic paper smart card |
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