JP2011076151A - Data display method for ic card and ic card - Google Patents

Abstract

The present invention relates to an IC card data display method and an IC card, and it is possible to display data held by an owner on an IC card without changing a reader / writer mechanism using an existing high security IC chip.
In response to a holding data request from an information management device, a first control unit transmits transmission data on a storage unit via a first antenna unit, and the information management device receives information from the owner. Update holding data updated in response to a request for fluctuation of holding data is transmitted from the information management apparatus and received by the first antenna unit 22, and the first control unit 21 holds the holding data in the storage unit 23 based on the updating holding data. Update. The update holding data transmitted as display data separately from the update holding data for the first control unit 21 from the information management apparatus is received by the second antenna unit 26, and the second control unit 24 displays the display data on the display unit 27. The configuration is as follows.
[Selection] Figure 1

Description

  The present invention relates to an IC card data display method and an IC card for displaying data held by the owner stored in an IC card owned for each individual.

  In recent years, for example, contactless IC cards that store prepaid and electronic money holding data have been desired to allow the owner to see how much the holding data is. In order to prevent the use, an IC chip that secures high security with a single function of only data exchange by performing communication conforming to ISO18092 to a reader / writer is often used. It is desirable to enable display on the IC card to be used without changing the mechanism of the reader / writer.

  Conventionally, a non-contact IC card storing prepaid or electronic money holding data is composed of an antenna unit and a control unit (IC chip), and an information management device communicates with the IC card. The holding data stored in the IC card is calculated in response to the owner's request for data fluctuation (payment etc.), and the holding data stored in the IC card is updated. This information management apparatus corresponds to the antenna unit of the IC card and performs communication using radio waves of a predetermined frequency, and is provided with one antenna unit corresponding to the frequency for the communication.

  Incidentally, some non-contact IC cards have been proposed in the following patent documents. In Patent Document 1, two functional unit ICs each including a set of a first chip and a first HF coil and a set of a second chip and a second LF coil and incorporating two different sets of frequency antenna coils and an IC chip are disclosed. A card has been proposed.

  In Patent Document 2, an IC chip connected to an antenna coil and an organic EL control chip connected to a different antenna coil are connected, and an output port of the IC chip and an input port of the organic EL control chip are connected. An IC card is proposed in which an organic EL panel is connected to the output port of the organic EL control chip, and information on the memory of the IC chip is displayed on the organic EL panel by the organic EL control chip.

Japanese Patent No. 4016762 JP 2008-217215 A

  When the IC card proposed in Patent Document 1 is provided with a display function, the information management device must include an antenna unit corresponding to different frequencies of the first HF coil and the second LF coil of the IC card. However, there is a problem in that the cost increases due to a change in the device configuration.

  Further, although the IC card proposed in Patent Document 2 has a display function, there is a problem in that it is not possible to use an existing IC chip that ensures high security with a single function only for data exchange by communication. is there. That is, in order to ensure security with the IC card in Patent Document 2, the operation of the organic EL control chip is stopped when the IC chip is in communication, and the IC chip is operated when the organic EL control chip is operated. The communication operation must be stopped, and a program for this needs to be included in the IC chip, which must be commercialized separately.

  Therefore, the present invention has been made in view of the above-described problems, and an IC card that can hold data held by an owner on an IC card without changing the reader / writer mechanism using an existing high-security IC chip. An object is to provide a data display method and an IC card.

  In order to solve the above-described problem, in the first aspect of the invention, the owner-updatable retained data is stored in the storage unit, and the first control is connected to the first antenna unit and can communicate at a predetermined frequency. , A second control unit connected to the second antenna unit and capable of communicating at the above frequency, an IC card including a predetermined number of display units controlled by the second control unit, and a first antenna of the IC card And a second antenna unit that can communicate with the second antenna unit, and an information management device that updates data held in the storage unit of the IC card. An IC card data display method for displaying held data stored in the storage unit, wherein a request for at least held data from the information management device is received by the first antenna unit of the IC card. In response to a request from the information management device, the first control unit of the IC card transmits holding data stored in the storage unit via the first antenna unit, and the information The update holding data updated in response to a request for fluctuation of the holding data acquired from the owner to the management device is transmitted from the information management device and received by the first antenna unit of the IC card; Updating the holding data stored in the storage unit based on the update holding data received by the first antenna unit by the first control unit of the IC card, and updating holding from the information management device to the first control unit Receiving update holding data transmitted as display data separately from data by the second antenna unit of the IC card; and a second control unit of the IC card A structure comprising the steps of displaying the display data received by the second antenna unit to the display unit.

  According to the second aspect of the present invention, there is provided an IC card that includes one reader / writer antenna unit that can communicate at one frequency and can communicate with an information management device capable of transmitting display data in a contactless manner. A storage unit for storing retained data is provided to control communication with the information management apparatus. When a request for retained data is received from the information management apparatus, the retained data stored in the storage unit is stored in the storage unit. When the update holding data that is transmitted to the information management device and updated in response to a request for fluctuation of the holding data acquired from the owner to the information management device is received from the information management device A first control unit that updates the retained data stored in the storage unit based on the updated retained data, and a first communication that communicates data to the information management device for performing the process of the first control unit. An antenna unit, a second antenna unit that receives update holding data transmitted as display data separately from update holding data for the first control unit from the information management device, and display data received by the second antenna unit. A second control unit that performs display control based on the display unit and a predetermined number of display units that are display-controlled by the second control unit and display the display data.

  According to the present invention, the first antenna unit receives a request for holding data from the information management device, and the first antenna unit receives the holding data stored in the storage unit by the first control unit. Updated holding data updated in response to a request for fluctuation of holding data acquired from the owner to the information management device is transmitted from the information management device and received by the first antenna unit, The first control unit updates the holding data stored in the storage unit based on the update holding data received by the first antenna unit, and is transmitted as display data separately from the update holding data for the first control unit from the information management device. Update holding data is received by the second antenna unit, and the second control unit displays the display data on a predetermined number of display units, whereby the first control unit is an existing high security IC chip. The first control unit and the second control unit on the IC card can communicate with the information management device without changing the mechanism of the reader / writer only by changing the program of the control unit of the information management device. The data held by the owner can be displayed on the display unit of the card.

It is a block diagram of the IC card based on this invention of FIG. It is a structure explanatory view of an information management device. It is a process flowchart (1) of the card | curd display of the holding | maintenance data based on this invention. It is a process flowchart (2) of the card | curd display of the holding | maintenance data based on this invention.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. The present invention is generally applicable to the case where the retained data of the owner is displayed on an IC card owned for each individual. In this embodiment, the retained data of the owner is stored in prepaid or electronic money. This is explained as data.

  FIG. 1 shows a configuration diagram of an IC card according to the present invention shown in FIG. FIG. 1A shows the inside, and at least a display portion is exposed as an IC card, and a surface mount portion is provided. FIG. 1B shows a block configuration diagram. In FIG. 1, an IC card 11 can communicate with an information management device without contact. The information management apparatus will be described with reference to FIG.

  1A and 1B, the IC card 11 is provided with a first antenna unit 22 corresponding to the position of one reader / writer antenna unit when inserted into an information management apparatus described later. A first control unit 21 is electrically connected to one antenna unit 22. The first antenna unit 22 is formed by, for example, a circular spiral antenna coil made of, for example, a known conductive printing ink, and the first control unit 21 is connected to both ends thereof.

  The first antenna unit 22 transmits and receives data for processing by the first control unit 21 to an information management apparatus described later. The first control unit 21 holds individual ID codes and controls communication with the information management apparatus, and stores prepaid and electronic money holding data in the storage unit 23. The first control unit 21 stores the ID code and the stored data request received from the information management apparatus 22 received by the first antenna unit 22 in the storage unit 23 in the stored ID code. It is an IC chip (first IC chip) that transmits data to the information management apparatus via the first antenna unit 22 as ancillary data.

  The first IC chip is an existing chip that ensures high security with a single function only for exchanging data by communication. For example, the first IC chip corresponds to the ISO18092 standard. Specifically, the first IC chip includes a control circuit, a ROM in which an ID code and a control program are stored, a memory for program execution, a detection circuit, a modulation / demodulation circuit, a power supply circuit, and a storage unit 23 for storing retained data. It has.

  The power supply circuit detects radio waves of a predetermined frequency received by the first antenna unit 22 with a detection circuit, and appropriately boosts the induced electromotive force generated by the antenna coil to generate power for other circuits. As the frequency, for example, 13.56 MHz is adopted. In addition, a data signal is superimposed on a carrier wave of the frequency in the received radio wave. When the data signal is demodulated by the modulation / demodulation circuit and transmitted from the first control unit 21, the control circuit Then, a transmission data signal (in the case of the present invention, an ID code or retained data stored in the storage unit 23) is superimposed on the carrier wave of the frequency, modulated, and transmitted from the first antenna unit 22.

  For example, a second antenna unit 26 is provided outside the first control unit 21 and the first antenna unit 22, and the second control unit 24 is electrically connected to the second antenna unit 26. The second antenna unit 26 is formed, for example, by forming a rectangular spiral antenna coil with conductive printing ink in the same manner as the first antenna unit 22, and the second control unit 24 is connected to both ends thereof.

  The second antenna unit 26 receives display data (described later) from an information management device (described later). The second control unit 24 controls communication with the information management apparatus, and is an IC chip (second IC chip) that controls display of display data received by the second antenna unit 26 from the information management apparatus. .

  Specifically, the second IC chip includes a control circuit, a ROM in which a control program is stored, a memory for program execution and temporary storage of display data, a detection circuit, a modem circuit, a power supply circuit, and a display control unit 25. Display control circuit.

  The power supply circuit detects a radio wave of a predetermined frequency received by the second antenna unit 26 by a detection circuit, and uses the induced electromotive force generated by the antenna coil as the power of the second IC chip, and displays it on the display unit 27 described later. The voltage is boosted to a necessary voltage for generating electric power. The frequency is 13.56 MHz as described above. In addition, display data is superimposed on the carrier wave of the frequency in the received radio wave. When the display data is demodulated by the modulation / demodulation circuit and a display end signal is transmitted from the second control unit 24, the control circuit However, the modulation / demodulation circuit modulates the display end signal superimposed on the carrier wave of the frequency, and transmits it from the second antenna unit 26.

  The display unit 27 is display-controlled by the second control unit 24 (display control circuit 25), and the power is generated by the power supply circuit as described above. The display unit 27 is, for example, a known electrophoretic method, and even if power supply is stopped, the displayed image remains in a remaining state, and can be visually recognized at any time. For example, it is displayed on the display unit 27 for the balance of prepaid or electronic money.

  Next, FIG. 2 shows a configuration explanatory diagram of the information management apparatus. In FIG. 2A, the information management apparatus 12 appropriately includes an insertion unit 31, one reader / writer antenna unit 32, a control unit 33, a display unit 34, and an operation unit 35 as corresponding to the IC card 11.

  The insertion part 31 is a part into which the IC card 11 is inserted. In the case of a complete insertion type, a discharge mechanism is also provided. The reader / writer antenna unit 32 can communicate with the IC card 11 via the first antenna unit 22 and the second antenna unit 26 at the frequency (13.56 MHz). When inserted into the portion 31, the first antenna portion 22 and the second antenna portion 26 are disposed at positions facing each other. That is, the reader / writer antenna unit 32 is a single unit and serves to communicate with both the first antenna unit 22 and the second antenna unit 26 of the IC card 11.

  The control unit 33 controls the apparatus as a whole. Specifically, a control circuit, a memory that performs control by developing and executing a program stored in a ROM (not shown) on the memory , An IC chip appropriately including a power supply circuit, a transmission circuit, a modulation / demodulation circuit, a power amplification circuit, and a detection circuit. The insertion unit 31, the reader / writer antenna unit 32, and the control unit 33 constitute a broad reader / writer.

  That is, the control unit 33 requests and acquires an ID code and holding data from the first control unit 21 of the IC card 11 inserted into the insertion unit 31. Then, calculation is performed in response to a request for fluctuation (for example, payment) of holding data acquired from the owner to the information management device 12, and the result is updated as updated holding data. Transmit to the control unit 21.

  The control unit 33 transmits the update holding data as display data to the second control unit 24 of the IC card 11, and in this case, what is transmission of update holding data to the first control unit 21? As another example, for example, communication is performed with respect to the second control unit 24 using a protocol different from the communication protocol with respect to the first control unit 21.

  The display unit 34 is, for example, an LED display unit that displays the held data of the IC card 11 acquired by the control unit 33 and displays the updated held data due to the fluctuation of the held data. The display unit 34 is not limited to visual display and may include audio display. The operation unit 35 includes at least an operation button for performing a deposit operation and a deposit mechanism for determining authenticity. The operation button in the operation unit 35 may be a button mechanism or a touch panel type.

  That is, the information management device 12 is capable of communicating with the first antenna unit 22 and the second antenna unit 26 of the IC card 11 and performs an operation in response to a request for variation in retained data acquired from the owner. The update holding data with the updated result is transmitted to the first control unit 21 of the IC card 11 and at least a process of transmitting it as display data to the second control unit 24 of the IC card 11 is performed. The change in the retained data is, for example, addition due to payment by the cardholder, and when the information management device 12 is mounted on a vending machine, it is subtraction due to use in addition to addition due to payment.

  FIG. 3 and FIG. 4 show processing flowcharts of the stored data card display according to the present invention. First, in FIG. 3, the control unit 33 of the information management device 12 sends an ID code request command and a hold data request command superimposed on a carrier wave having a frequency F (13.56 MHz) from the reader / writer antenna unit 32 to the IC card 11. 1 The transmission state is set by the communication protocol for the control unit 21 (step (S) 1). When the IC card 11 is inserted into the insertion unit 31, the first antenna unit 22 receives the ID code request and retention data request commands (S2).

  In the first control unit 21 of the IC card 11, the first IC chip is activated by the induced electromotive force generated by the carrier wave received by the first antenna unit 22, and the stored ID code and the stored data stored in the storage unit 23 are information. The data is transmitted to the management apparatus 12 side using the communication protocol (S3). The information management apparatus 12 displays the acquired retained data on the display unit 34 (S4).

  Subsequently, when the owner operates, for example, a deposit operation button by the operation unit 35 and deposit is performed, the control unit 33 acquires deposit data (remaining amount fluctuation data) (S5), and holds the acquired data. An addition operation with the data is performed to obtain update holding data (S6). The control unit 33 displays the update holding data of the calculated value on the display unit 35 and attaches a parity check flag to the update holding data, and the carrier wave having the frequency F from the reader / writer antenna unit 32 to the IC card. A command to update the data held in the storage unit by using the update holding data superimposed on is transmitted (S7).

  In the IC card 11, power is generated from the carrier wave received by the first antenna unit 22, the first control unit 21 is activated, the received update holding data is parity checked, and the result is communicated to the information management apparatus 12 side. It transmits with the protocol (S8). As a result of the parity check (S9), if they do not match, a negative response (NAK) is transmitted to the information management apparatus 12 side, so that the display data is retransmitted from the information management apparatus 12, and the first control unit 21 responds to this. In contrast, a parity check is performed and the result is transmitted to the information management apparatus 12 side (S7, S8).

  As a result of the parity check (S9), if they match, a response (ACK) is transmitted to the information management apparatus 12 side, and the retained data in the storage unit 23 is updated based on the acquired updated retained data (S10). .

  As shown in FIG. 5, when the control unit 33 of the information management device 12 receives a parity check response (ACK) (S <b> 11), the calculated update holding data is displayed separately from the update holding data for the first control unit 21. A parity check flag is attached to the display data for the inserted IC card 11 and is superimposed on a carrier wave having a frequency F (13.56 MHz), and is different from the communication protocol for the first control unit 21. Transmit (S12).

  The second antenna unit 26 of the IC card 11 receives display data transmitted with a different protocol, generates an induced electromotive force by the received carrier wave, and activates the second control unit 24 of the second control unit 24. Then, the received display data is subjected to a parity check using an attached parity check flag, and the result is transmitted to the information management apparatus 12 side (S13).

  As a result of the parity check (S14), if they do not match, a negative response (NAK) is transmitted to the information management apparatus 12 side, so that the display data is retransmitted from the information management apparatus 12, and the second control unit 24 responds to this. Also for parity check, the result is transmitted to the information management apparatus 12 side (S12, S13).

  As a result of the parity check (S14), if they match, a response (ACK) is transmitted to the information management device 12 side, and the same as the update holding data stored in the storage unit 23 for the display unit 27 by the display control unit 25 The display of the content (remaining balance) of the update holding data is rewritten (S15). And the 2nd control part 24 transmits the completion | finish signal of the display rewriting by timing etc. to the information management apparatus 12 side (S16).

  The control unit 33 of the information management apparatus 12 receives the display rewriting end signal, and displays on the display unit 34 permission to remove the IC card 11 from the insertion unit 31 (S17). In this case, the permission to take out may be displayed by voice. Moreover, when the insertion part 31 is a complete insertion type, it is good also as discharging automatically.

  As described above, the first IC chip of the first control unit 21 is used as an existing high-security IC chip compatible with ISO18092 as described above, and a reader such as an antenna unit is changed only by changing the program of the control unit 33 of the information management apparatus 12. The first control unit 21 and the second control unit 24 can communicate with the information management device 12 without changing the mechanism of the writer part, and the stored data stored in the storage unit 23 of the IC card 11 Can be displayed on the display unit 27.

  By the way, when the insertion part 31 of the information management apparatus 12 is a complete insertion type, an eject button may be provided in the operation part 35 for canceling the process. In this case, when the eject button is operated, the control part 33 is provided. If the acquired retained data is not updated, the retrieval permission is displayed as it is, and if it is updated, the processes of S7 to S10 of FIG. 3 and the process of FIG. 4 are performed. The same applies to the case where the insertion unit 31 is not a complete insertion type but is simply inserted and the operation unit 35 is provided with an operation button for canceling processing.

  The IC card data display method and IC card according to the present invention can be used in the IC card industry in which data held by the owner is displayed on an IC card owned for each individual.

DESCRIPTION OF SYMBOLS 11 IC card 12 Information management apparatus 21 1st control part 22 1st antenna part 23 Storage part 24 2nd control part 25 Display control part 26 2nd antenna part 27 Display part 31 Insertion part 32 Reader / writer antenna part

Claims (2)

The owner's updatable holding data is stored in the storage unit. The first control unit is connected to the first antenna unit and can communicate at a predetermined frequency, and is connected to the second antenna unit and can communicate at the above frequency. A second control unit, an IC card having a predetermined number of display units controlled by the second control unit, and a reader / writer that can communicate with the first antenna unit and the second antenna unit of the IC card An IC card that includes an antenna unit and causes the display unit of the IC card to display the stored data stored in the storage unit by an information management device that updates the stored data stored in the storage unit of the IC card Data display method,
Receiving at least a request for retained data from the information management device at the first antenna unit of the IC card;
In response to a request from the information management device, the first control unit of the IC card transmits the holding data stored in the storage unit via the first antenna unit;
The update holding data updated in response to the change request of the holding data acquired from the owner to the information management device is transmitted from the information management device and received by the first antenna unit of the IC card When,
Updating the holding data stored in the storage unit based on the update holding data received by the first antenna unit by the first control unit of the IC card;
Receiving update holding data transmitted as display data separately from update holding data for the first control unit from the information management device at the second antenna unit of the IC card;
Displaying the display data received by the second antenna unit by the second control unit of the IC card on the display unit;
A data display method for an IC card, comprising: An IC card that is equipped with one reader / writer antenna unit that can communicate at one frequency and can communicate with an information management device capable of transmitting display data in a non-contact manner,
A storage unit that stores data held by the owner is provided to control communication with the information management apparatus, and is stored in the storage unit when a request for data held from the information management apparatus is received. The holding data is transmitted to the information management device, and the updated holding data updated in response to the request for fluctuation of the holding data acquired from the owner to the information management device is received from the information management device. A first control unit that updates the stored data stored in the storage unit based on the updated stored data,
A first antenna unit that performs communication of data exchange for performing processing of the first control unit to the information management device;
A second antenna unit that receives update holding data transmitted as display data separately from update holding data for the first control unit from the information management device;
A second control unit that performs display control based on display data received by the second antenna unit;
A predetermined number of display units that are display-controlled by the second control unit and display the display data;
An IC card characterized by comprising:

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