JP2007087168A - Composite portable electronic device and composite ic card - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a composite portable electronic device normally operable by both of communication via a contact interface and communication via a non-contact interface. <P>SOLUTION: In this composite IC card having the contact interface and the non-contact interface, it is detected to which of the contact interface and the non-contact interface a signal has been input, and if the signal is detected, it is determined whether a communication carried out via either of the interfaces is just started or data transmission is already carried out in the communication. When the communication is just started, it is determined whether the interface inputting the signal corresponds to an interface at a high priority order level or not. When it is determined that the data transmission is already carried out or when the interface inputting the signal is different from the interface at the high priority level, communication via the already established interface is maintained. A switch to the interface at the high priority level is carried out when it is determined that the interface inputting the signal corresponds to the interface at the high priority level. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention has, for example, a contact IC and a contactless interface, and a composite IC that selectively communicates with an external device (card reader / writer) by using the contact interface or the contactless interface. The present invention relates to a composite portable electronic device called a card (so-called combination card) and a composite IC card.

  This type of composite IC card has a memory and a CPU (Central Processing Unit), and an IC chip that generates a signal in response to an input from an external device. An apparatus having an electrical contact mechanism (contact type interface) and an antenna mechanism (non-contact type interface) for responding wirelessly without contact with an external device is known (for example, see Patent Document 1). ).

  This IC card can be written and rewritten to the memory by an external device connected to the electrical contact mechanism. When responding by wireless communication without contact with the external device, specific information in the memory is modulated. Thus, the antenna mechanism is configured to output to an external device.

As a known technique related to communication control with an external device (reader / writer) in such a composite IC card, communication is started by a communication method (interface) that operates first, and then another communication method (the other interface). ) Is not permitted (see, for example, Patent Document 2).
Japanese Examined Patent Publication No. 4-16831 Japanese Patent Laid-Open No. 11-272824

  However, for example, when a composite IC card is processed by a dual-purpose reader / writer equipped with a contact interface and a non-contact interface, the composite IC card disclosed in Patent Document 2 is close to the reader / writer. At this point, communication by the non-contact interface that starts operation takes priority, and communication by the contact interface may not operate normally.

  Therefore, the present invention is normal in both communication using a contact interface and communication using a non-contact interface, even if the reader / writer is a dual-purpose reader / writer equipped with a contact interface and a non-contact interface, respectively. It is an object of the present invention to provide a composite portable electronic device and a composite IC card which can be operated in a simple manner.

  The composite portable electronic device of the present invention has a contact interface and a non-contact interface, respectively, and selectively communicates with an external device through these contact interface or non-contact interface. In a device, when a signal is input from an external device to priority order specifying means for specifying the priority order of the contact type interface and the non-contact type interface, and to either the contact type interface or the non-contact type interface Immediately after the start of the start of the composite portable electronic device, the detection means for detecting which interface the signal is input to and the communication performed using either the contact interface or the non-contact interface Or is already in the state of data transmission / reception with an external device. A first determination unit for determining whether or not the first determination unit determines that the start is immediately after start-up, and the priority order is determined by the interface to which the signal detected by the detection unit is input and the priority order designation unit. Is determined to be in a state in which data transmission / reception has already been performed between the second determination means for determining whether or not the interface designated at the high level matches with the external device and the first determination means. Or the interface to which the signal detected by the detection means is input by the second determination means does not match the interface whose priority is designated high by the priority designation means. In the case where the signal is detected, the communication with the already established interface is maintained, and the interface to which the signal detected by the detection means is input by the second determination means and the interface Control that switches the interface to a higher-priority interface and prohibits signal input for non-priority interfaces when it is determined that the interface with the higher-priority specified by the priority specification means matches. Means.

  The composite IC card of the present invention includes a contact type interface and a non-contact type interface, respectively. In the composite IC card that selectively communicates with an external device using the contact type interface or the non-contact type interface. Priority specifying means for specifying the priority order of the contact type interface and the non-contact type interface, and when a signal is input from an external device to either the contact type interface or the non-contact type interface The detection means for detecting whether a signal is input to the interface of the communication interface and the communication performed using either the contact type interface or the non-contact type interface is immediately after the start of the activation of the composite IC card, or Determine if data is already being sent to or received from an external device When the first determination unit and the first determination unit determine that the start has just started, the interface in which the signal detected by the detection unit is input and the priority specification unit specifies a high priority. A second determination unit that determines whether or not the received interface matches, and when the first determination unit determines that data transmission / reception has already been performed with an external device, Alternatively, when it is determined by the second determination means that the interface to which the signal detected by the detection means is input does not match the interface whose priority is designated high by the priority designation means The communication with the already established interface is maintained, and the interface to which the signal detected by the detection means is input by the second determination means and the priority designation Control means for switching to an interface with a higher priority and prohibiting signal input of an interface with a lower priority when it is determined that the interface with the higher priority specified at the stage matches. And an IC card body containing the IC module.

  According to the present invention, for example, by using a dual-purpose reader / writer equipped with a contact interface and a non-contact interface to prevent malfunction even when driven from either interface, Therefore, it is possible to provide a composite portable electronic device and a composite IC card that can sufficiently ensure the reliability of the device and can operate normally in both communication using a contact interface and communication using a non-contact interface.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 shows a configuration of a composite IC card system that handles a composite IC card (so-called combination card) as a composite portable electronic device according to an embodiment of the present invention. This composite IC card system is largely divided into a dual-purpose card reader / writer 10 having a contact interface and a non-contact interface, and a composite IC card 30 having a contact interface and a non-contact interface, respectively. Separated.

  The card reader / writer 10 performs data reading, writing (memory) command transmission, read data processing, write data transmission, etc. to the composite IC card 30, and includes a transmission antenna 11, a transmission driver 12, and modulation. Circuit 13, receiving antenna 14, receiving amplifier 15, demodulating circuit 16, contact unit 17 as a contact interface connected to composite IC card 30, interface unit 18 connected to a host device (not shown), display unit 19, an operation unit 20 such as a keyboard, a control unit 21 that controls these components, and a power supply unit 22 that supplies operation power to these units.

  The composite IC card 30 decodes commands from the card reader / writer 10, writes data (stores), transmits data, and the like. A loop antenna coil (not shown) as a transmission / reception antenna and a tuning capacitor (not shown) A parallel tuning circuit 31, a power generation unit 32, a demodulation circuit 33, a modulation circuit 34, a nonvolatile memory 35 including an EEPROM as a storage means, a clock generation circuit 36, and a card reader / writer 10. The contact portion 37 is connected to the contact portion 17 as a contact type interface, and a control logic circuit (CPU) 38 that controls the whole of the contact portion 37 and the like.

  The contact portion 37 of the composite IC card 30 is used when a contact-type communication function is executed. As shown in FIG. 2, the contact portion 37 contacts the contact portion 17 of the card reader / writer 10 to respond. Eight contact terminals C1 to C8 serving as a central contact mechanism are provided, and these contact terminals C1 to C8 are formed exposed on the surface of the IC card main body 30a.

Hereinafter, the card reader / writer 10 and the composite IC card 30 will be described in more detail.
First, reading of data by the non-contact type interface to the composite IC card 30 in the card reader / writer 10 will be described.

  The controller 21 of the card reader / writer 10 generates a read command and sends it to the modulation circuit 13. The modulation circuit 13 modulates the command by an arbitrary modulation method and sends it to the transmission driver 12. The driver 12 amplifies the modulated signal to an intensity sufficient to radiate, and supplies the amplified signal to the transmission antenna 11.

  The signal supplied to the transmission antenna 11 is radiated to the space and received by the parallel tuning circuit 31 of the composite IC card 30. This received signal is demodulated by the demodulation circuit 33 and sent to the control logic circuit 38 where command analysis is performed. As a result, when it is decoded that the content of the command is read, the control logic circuit 38 reads predetermined data from the non-volatile memory 35 in which card data is stored and sends it to the modulation circuit 34. The modulation circuit 34 modulates the card data and supplies it to the parallel tuning circuit 31.

  The signal supplied to the parallel tuning circuit 31 is radiated from the antenna coil to the space and received by the receiving antenna 14 of the card reader / writer 10. This received signal is sent to the receiving amplifier 15. The amplifier 15 amplifies the received signal and then sends it to the demodulating circuit 16 where it is demodulated. The demodulated signal is sent to the control unit 21 where predetermined data processing is performed.

  If necessary, data can be displayed on the display unit 19 and data can be input on the operation unit 20.

Next, data writing by the non-contact type interface to the composite IC card 30 in the card reader / writer 10 will be described.
The controller 21 of the card reader / writer 10 generates a write command and write data and sends them to the modulation circuit 13. The modulation circuit 13 modulates a command and data by an arbitrary modulation method and sends the modulated command and data to the transmission driver 12. The driver 12 amplifies the modulated signal to an intensity sufficient to radiate, and supplies the amplified signal to the transmission antenna 11.

  The signal supplied to the transmission antenna 11 is radiated to the space and received by the parallel tuning circuit 31 of the composite IC card 30. This received signal is demodulated by the demodulation circuit 33 and sent to the control logic circuit 38 where command analysis is performed. As a result, when it is decoded that the content of the command is a write, the control logic circuit 38 writes the write data sent after the write command to a predetermined address in the nonvolatile memory 35.

  After the writing is completed, the control logic circuit 38 generates a processing completion response indicating that the writing is successful and sends it to the modulation circuit 34. The modulation circuit 34 modulates the processing completion response and supplies it to the parallel tuning circuit 31.

  The signal supplied to the parallel tuning circuit 31 is radiated from the antenna coil to the space and received by the receiving antenna 14 of the card reader / writer 10. This received signal is sent to the receiving amplifier 15. The amplifier 15 amplifies the received signal and then sends it to the demodulation circuit 16 where it is demodulated. The demodulated signal is sent to the control unit 21, the processing completion response is decoded, and it is recognized that the data writing is completed.

Next, data reading by the contact type interface with respect to the composite IC card 30 in the card reader / writer 10 will be described.
The control unit 21 of the card reader / writer 10 generates a read command and supplies it to the contact unit 17. The read command is received by the contact portion 37 of the composite IC card 30 that is in contact with the contact portion 17. The received read command is sent to the control logic circuit 38 where the command analysis is performed. As a result, when the command content is decoded as read, the control logic circuit 38 reads predetermined data from the non-volatile memory 35 in which card data is stored and supplies it to the contact unit 37.
The data supplied to the contact unit 37 is transmitted to the contact unit 17 of the card reader / writer 10 and sent to the control unit 21 where predetermined data processing is performed.

  If necessary, data can be displayed on the display unit 19 and data can be input on the operation unit 20.

Next, data writing by the contact type interface to the composite IC card 30 in the card reader / writer 10 will be described.
The control unit 21 of the card reader / writer 10 generates a write command and supplies it to the contact unit 17. The write command is received by the contact portion 37 of the composite IC card 30 that is in contact with the contact portion 17. The received write command is sent to the control logic circuit 38 where the command analysis is performed. As a result, if the command content is decoded as write, the control logic circuit 38 writes the write data sent after the write command to a predetermined address in the nonvolatile memory 35.

  After the writing is completed, the control logic circuit 38 generates a processing completion response indicating that the writing is successful and supplies the processing completion response to the contact unit 37. The processing completion response supplied to the contact unit 37 is transmitted to the contact unit 17 of the card reader / writer 10 and is sent to the control unit 21. The processing completion response is decoded and it is recognized that the data writing is completed.

The power generation unit 32 in the composite IC card 30 generates a power supply for operation used in the composite IC card 30 by branching and rectifying the received signal from the parallel tuning circuit 31.
The clock generation circuit 36 in the composite IC card 30 generates clock pulses necessary for operating each circuit based on the received signal from the parallel tuning circuit 31. The clock pulse generated by the clock generation circuit 36 is output to the demodulation circuit 33, the modulation circuit 34, and the control logic circuit 38.

Next, a detailed configuration of the composite IC card 30 will be described with reference to FIGS.
The composite IC card 30 has contact terminals C1 (VCC (power supply potential) terminal), C2 (RST (reset) terminal), C3 (CLK (clock) terminal), C4 (on the surface of the IC card main body 30a, as contact parts 37. Spare terminal: RFU), C5 (GND (ground potential) terminal), C6 (VPP: unused), C7 (I / O (input / output) terminal), C8 (spare terminal: RFU) are arranged as contact type interfaces. Has been.

  A one-chip microprocessor 39 is embedded in the composite IC card 30. The one-chip microprocessor 39 includes a control CPU (central processing unit) 40 corresponding to the control logic circuit 38, a ROM (read only memory) 41 for storing control programs, and the like for temporary storage of data. A RAM (Random Access Memory) 42, a data memory 43 composed of a non-volatile memory such as an EEPROM in which a password (for example, four digits) and data are stored, an encryption circuit 44, a UART, etc. It has an interface circuit 45 and the like.

  When data is exchanged by the contact type interface using such a composite IC card 30, the contact portion 17 of the card reader / writer 10 into which the composite IC card 30 is inserted and set is connected to the contact terminal C1 (VCC terminal). Voltage (usually DC5V) is supplied, and signals are input to the contact terminals C3 (CLK terminal), C2 (RST terminal), and C5 (GND terminal), and at the same time, the contact terminal C7 (I / O terminal) is connected. Data communication.

  Each of the above parts is composed of an IC chip and is provided on one substrate. The terminals C1 to C8 are connected to each other by wiring, and the terminals C1 to C8 and the substrate on which the IC chip is mounted are integrated and handled as an IC module M, which is shown in FIG. As described above, the terminals C1 to C8 are embedded in the IC card body 30a so that the terminals C1 to C8 are exposed on the surface of the IC card body 30a.

  A parallel tuning circuit 31 is provided in the composite IC card 30 for non-contact data exchange. That is, the parallel tuning circuit 31 receives a two-phase phase modulation wave signal (first two-phase phase modulation wave signal) from the transmission antenna 11 of the card reader / writer 10 and also has two phases of a carrier frequency of f0 / 2. Transmission is also performed using a phase-modulated wave signal (second two-phase phase-modulated wave signal), and is composed of a loop-shaped antenna coil 31a and a tuning capacitor 31b.

  In the parallel tuning circuit 31, the antenna coil 31a transmits at the same time as the reception at the carrier frequency of f0 / 2. However, it is necessary to efficiently secure the power for generating the power from the received radio wave. Therefore, it is tuned to the carrier frequency f0 of the received two-phase phase modulated wave signal.

Note that the carrier frequency for the transmission may be 1 / integer instead of ½ the carrier frequency of the received two-phase modulated signal.
Further, the antenna coil 31a is merely for signal transmission and reception, and these coils may be provided for both transmission and reception, but may be separately used for transmission and reception.

  In the one-chip microprocessor 39, a non-contact type interface 46 for exchanging data via the parallel tuning circuit 31 is provided for non-contact type data exchange. The non-contact type interface 46 includes the parallel tuning circuit 31, a power generation unit 32 that generates power to be supplied to each unit by a two-phase modulated wave signal from the parallel tuning circuit 31, and the parallel tuning circuit 31. From the clock generation circuit 36 that generates an operation clock pulse from the analog signal received via the demodulator 33, the demodulator circuit 33 that converts the analog signal received via the parallel tuning circuit 31 into a digital signal to be read by the CPU 40, and the CPU 40 A reset signal generation circuit that generates a reset signal based on a clock pulse generated by a modulation circuit 34 and a clock generation circuit 36 for modulating the oscillation circuit output with a signal to be transmitted and transmitting it from the antenna coil 31a of the parallel tuning circuit 31 47 or the like.

  In the one-chip microprocessor 39, a switch (SW1) 48 for turning on / off the conduction between the non-contact type interface 46 and the parallel tuning circuit 31 is provided. The switch (SW1) 48 is normally turned on (connected) under the control of the CPU 40, but a power supply voltage (usually DC5V) is applied from the contact terminal C1 of the contact portion 37 which is a contact type interface. In this case, it is configured to be turned off under the control of the CPU 40.

  Furthermore, in addition to the switch (SW1) 48, switches (SW2, SW3, SW4, SW5) 49, 50, 51, 52 are provided corresponding to the contact terminals C1, C2, C3, C7, respectively. Yes. One input terminal of each of these switches (SW2, SW3, SW4, SW5) 49 to 52 is connected corresponding to each of the contact terminals C1, C2, C3, C7.

The other input terminal of the switch (SW2) 49 is connected to the output terminal of the power generation unit 32 so that the power supply voltage generated by the power generation unit 32 of the non-contact interface 46 is input. Yes. One of the input terminals of the switch (SW2) 49 is selected to be enabled by the output of the selection circuit (sel) 53 controlled by the CPU 40.
Note that the other input terminal of the switch (SW2) 49 is selected so that the power supply voltage generated by the power supply generation unit 32 is input in the initial state under the control of the CPU 40.

The other input terminal of the switch (SW3) 50 is connected to the output terminal of the reset signal generation circuit 47 so that the reset signal generated by the reset signal generation circuit 47 of the non-contact type interface 46 is input. Yes. One of the input ends of the switch (SW3) 50 is selected to be enabled by the output of the selection circuit (sel) 53 controlled by the CPU 40.
Note that the other input terminal of the switch (SW3) 50 is selected so that the reset signal generated by the reset signal generation circuit 47 is input in the initial state under the control of the CPU 40.

The other input terminal of the switch (SW4) 51 is connected to the output terminal of the clock generation circuit 36 so that the clock pulse generated by the clock generation circuit 36 of the non-contact interface 46 is input. One of the input ends of the switch (SW4) 51 is selected to be enabled by the output of the selection circuit (sel) 53 controlled by the CPU 40.
Note that the other input terminal of the switch (SW4) 51 is selected by the control of the CPU 40 so that the clock pulse generated by the clock generation circuit 36 is input in the initial state.

  The other input terminal of the switch (SW 5) 52 is connected to the output terminal of the demodulation circuit 33 of the non-contact interface 46. One output terminal of the switch (SW5) 52 is connected to the input terminal of the modulation circuit 34 of the non-contact interface 46.

The switch (SW5) 52 is selectively connected to the output terminal of the demodulation circuit 33, the input terminal of the modulation circuit 34, or the contact terminal C7 according to the output of the selection circuit (sel) 53 controlled by the CPU 40. One of the input terminals or the output terminals is selected to be enabled.
In the initial state of the switch (SW5) 52, the output end of the demodulation circuit 33 and the input end of the modulation circuit 34 are selected under the control of the CPU 40.

The contact terminal C1 of the contact section 37 and the output of the power generation section 32, which are contact interfaces, are respectively input to the input terminals A and B of the CPU 40, and the composite IC card 30 is activated to perform the initialization operation. When performing, it is discriminated whether the CPU 40 is driven by the contact type interface (contact part 37) or the non-contact type interface 46.
The CPU 40 is configured to read the program for performing the initialization operation stored in the ROM 41 and perform the initialization operation.

  Next, a first example of communication control of the composite IC card 30 with the card reader / writer 10 in such a configuration will be described with reference to the flowchart shown in FIG. The following operations are mainly executed by control based on the control program of the CPU 40 (control logic circuit 38).

  First, it is detected whether a signal is input through either the contact interface (contact portion 37) or the non-contact interface 46 (step S1). This detection is performed as follows, for example. That is, the CPU 40 confirms the state of the input terminals A and B, and if the input terminal A is “1” and the input terminal B is “0”, a signal is input through the non-contact interface 46. If the input terminal A is “0” and the input terminal B is “1”, it is determined that a signal is input through the contact-type interface (contact portion 37).

  If no signal is detected in step S1, the communication system established at this time is maintained (step S2). If a signal is detected in step S1, the number of times the signal from the outside (card reader / writer 10) is detected is counted up (step S3).

  Next, it is determined whether or not the number of times counted up in step S3 is a predetermined value, for example, twice or more (step S4). As a result of this determination, if it is less than twice (one time), the communication method with the interface already established at this time is maintained (step S2).

As a result of the determination in step S4, in the case of two or more times, it is determined whether the communication already established is immediately after the start of activation of the composite IC card 30 or whether data transmission / reception has already been performed with the outside. Determine (step S5).
Here, immediately after the start of startup, for example, during the output of initial response information (ATR: Answer To Reset) described in ISO / IEC7816-3, which is an international standard, data reception from the outside immediately after the output of initial response information Waiting state, waiting state for receiving a collision prevention command (REQB: Request Command, TypeB), outputting an initialization request response (ATQB: Answer To Request, TypeB), or waiting for data reception immediately after outputting an initialization request response Either.

  Each of the above states is a state before generation of a read command or a write command supplied from the card reader / writer 10 to the composite IC card 30, and includes initial response information (ATR) and initialization request response (ATQ). Is information for presenting the communication speed between the card reader / writer 10 and the composite IC card 30.

  As a result of the determination in step S5, if it is not immediately after starting, that is, for example, if it is determined that data transmission / reception by the command-response described in ISO / IEC7816-4 has already been performed, it is already established at this time. The communication system at the existing interface is maintained (step S2).

  Here, the command described in ISO / IEC7816-4 corresponds to the read command or write command supplied from the card reader / writer 10 to the composite IC card 30, and the response described in ISO / IEC7816-4 Corresponds to card data or a processing completion response supplied from the composite IC card 30 to the card reader / writer 10.

  As a result of the determination in step S5, when it is determined immediately after the start of activation, the priority order of whether the communication method to be prioritized of the composite IC card 30 is a contact type interface or a non-contact type interface is confirmed (step S6). It is determined whether or not the confirmed result matches the communication method (contact type interface or non-contact type interface) in which the signal is detected in step S1 (step S7).

If the result of determination in step S <b> 7 is a mismatch, the communication method for the interface already established at this time is maintained (step S <b> 2).
If they match as a result of the determination in step S7, the communication system (interface) in which the signal is detected in step S1 has a higher priority in the composite IC card 30, so that the priority order is determined from the already established communication system. Is switched to a higher communication system (step S8). For example, if the already established communication method is a non-contact interface, the communication method is switched to a communication method of a contact interface with a higher priority.

  Next, a second example of communication control of the composite IC card 30 with the card reader / writer 10 will be described with reference to the flowchart shown in FIG. The following operations are mainly executed by control based on the control program of the CPU 40 (control logic circuit 38).

  First, it is detected whether a signal is input through either the contact interface (contact portion 37) or the non-contact interface 46 (step S11). This detection is the same as in the case of the second example described above.

  If no signal is detected in step S11, the communication method using the interface already established at this time is maintained (step S12). When a signal is detected in step S11, the number of times the signal from the external device (card reader / writer 10) is detected is counted up (step S13).

  Next, it is determined whether or not the number of times counted up in step S13 is a predetermined value, for example, twice or more (step S14). As a result of this determination, if it is less than twice (one time), the communication method with the interface already established at this time is maintained (step S12).

  If the result of determination in step S14 is two or more times, it is determined whether the communication already established is immediately after the start of activation of the composite IC card 30 or whether data transmission / reception has already been performed with the outside. Determination is made (step S15). Here, “immediately after start-up” is the same as in the case of the second example described above.

  If the result of determination in step S15 is not immediately after the start of startup, that is, for example, if it is determined that data transmission / reception by the command-response described in ISO / IEC7816-4 has already been performed, the data transmission / reception is predetermined. It is determined whether or not the processing has been completed, for example, whether or not the payment processing realized by a plurality of command-responses has been completed (step S16). The details of the determination processing of the progress status of the settlement processing in step S16 will be described later.

  As a result of the determination in step S15, if it is determined that the activation has just started, or if it is determined that the payment process has been completed as a result of the determination in step S16, the communication method to be prioritized by the composite IC card 30 is determined. The priority order between the contact type interface and the non-contact type interface is confirmed (step S17), and the result of this confirmation is the communication method (contact type interface or non-contact type interface) in which the signal is detected in step S11. ) Is determined (step S18).

  If the result of determination in step S14 is less than twice (one time), or if the result of determination in step S16 is that payment processing has not been completed, or the result of determination in step S18 is that there is a discrepancy In this case, the communication method using the interface already established at this time is maintained (step S12).

  If they match as a result of the determination in step S18, the communication system (interface) in which the signal is detected in step S11 has a higher priority in the composite IC card 30, so the priority order is determined from the already established communication system. Is switched to the higher communication system (step S19). For example, if the already established communication method is a non-contact interface, the communication method is switched to a communication method of a contact interface with a higher priority.

Next, an example of the operation related to the determination process of the progress status of the settlement process in step S16 will be described with reference to the flowchart shown in FIG.
The payment process in this case is, for example, a process executed by a plurality of command-responses from application selection to authentication process as described in EMV-CPS which is a credit card industry standardized specification. Since it is assumed that communication is newly started by a communication method other than the established communication method after the settlement process is completed, it can be considered to be in the same state as immediately after the start of communication.

Here, the settlement process executed by the command-response described in the EMV-CPS is realized by the following command.
・ Application selection (SELECT command)
・ Initialization and start of transaction processing (GET PROCESSINS OPTIONS)
command
-Reading card data (READ RECORD command)
-Confirm cardholder (VERIFY command)
・ Authentication processing (GENERATE AC command)
The transaction processing is completed when the above-mentioned plurality of commands are successful.

  First, command processing based on data received from an external device (card reader / writer 10) is executed (step S21). Next, it is determined whether or not the command processed in step S21 is a payment processing completion command (for example, GENERATE AC command described in EMV-CPS) (step S22).

As a result of this determination, if it is determined that the completion command has been executed, a payment completion flag that holds the state where the payment processing has been completed is set (for example, the 1-bit state is rewritten to “1”) (step 1) S23) If it is determined that a command other than the completion command has been executed, the settlement completion flag is erased (for example, the 1-bit state is rewritten to “0”) in order to maintain the state where the settlement process is not completed. (Step S24).
Next, in order to show the result of the command processing executed in step S21, response output is performed to the external device (step S25).
Therefore, in step S16, it is determined whether or not the settlement process is completed by referring to the state of the settlement completion flag.

  In the above-described embodiment, the case where the present invention is applied to a composite IC card has been described. However, the present invention is not limited to this, and for example, a portable information terminal device called PDA, a mobile phone, etc. The present invention can be applied to any composite portable electronic device having functions of both communication by an interface and communication by a non-contact interface.

1 is a block diagram schematically showing a configuration of a composite IC card system that handles a composite IC card according to an embodiment of the present invention. The schematic diagram which shows the structure of a composite IC card roughly. 1 is a block diagram schematically showing the configuration of a one-chip microprocessor. 9 is a flowchart for explaining a first example of communication control of a composite IC card with a card reader / writer. 9 is a flowchart for explaining a second example of communication control with a card reader / writer of a composite IC card. FIG. 6 is a flowchart for explaining an operation example related to a determination process of the progress status of the settlement process in FIG. 5.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 10 ... Card reader / writer (external device), 30 ... Composite IC card (composite portable electronic device), 11 ... Transmission antenna, 12 ... Transmission driver, 13 ... Modulation circuit, 14 ... Reception antenna, 16 ... Demodulation circuit , 17 ... contact part (contact type interface), 21 ... control part, 31 ... parallel tuning circuit, 31a ... antenna coil, 31b ... tuning capacitor, 32 ... power generation part, 33 ... demodulation circuit, 34 ... modulation circuit, 35 ... Non-volatile memory (EEPROM as storage means) 36 ... Clock generation circuit 37 ... Contact part (contact type interface) 38 ... Control logic circuit (CPU) M ... IC module 30a ... IC card body 46 ... non-contact interface.

Claims (11)

In a composite portable electronic device having a contact interface and a non-contact interface, and selectively communicating with an external device through the contact interface or the non-contact interface,
Priority designation means for designating priority of the contact type interface and the non-contact type interface;
Detecting means for detecting to which interface a signal is input when a signal is input from an external device to either the contact-type interface or the non-contact-type interface;
Communication using either the contact-type interface or the non-contact-type interface is immediately after the start of activation of the composite portable electronic device or a state in which data transmission / reception has already been performed with an external device First determination means for determining whether or not
If it is determined by the first determination means that the start has just started, the interface to which the signal detected by the detection means is input matches the interface whose priority is designated high by the priority designation means. Second determination means for determining whether or not to do;
When it is determined by the first determination means that data transmission / reception has already been performed with an external device, or the signal detected by the detection means is input by the second determination means When it is determined that the interface does not match the interface whose priority is designated high by the priority designation means, the communication by the already established interface is maintained, and the second judgment means When it is determined that the interface to which the signal detected by the detection means is input matches the interface whose priority is designated high by the priority designation means, the interface is switched to a higher priority interface, and , A control means for prohibiting signal input of an interface whose priority is not high,
A composite portable electronic device comprising: In a composite portable electronic device having a contact interface and a non-contact interface, and selectively communicating with an external device through the contact interface or the non-contact interface,
Priority designation means for designating priority of the contact type interface and the non-contact type interface;
Detecting means for detecting to which interface a signal is input when a signal is input from an external device to either the contact-type interface or the non-contact-type interface;
Counting means for counting the number of times detected by the detecting means;
First determination means for determining whether or not the count value of the counting means is greater than or equal to a predetermined value set in advance;
When the first determination means determines that the count value of the counting means is greater than or equal to a predetermined value, communication performed using either the contact-type interface or the non-contact-type interface is performed. A second determination means for determining whether the electronic device is immediately after the start of the start of the possible electronic device or whether the data transmission / reception with the external device has already been performed;
If it is determined by the second determination means that it has just started, the interface to which the signal detected by the detection means is input matches the interface whose priority is designated high by the priority designation means. Third determination means for determining whether or not to do;
When it is determined by the first determination means that the count value of the counting means is not equal to or greater than a predetermined value, or when the second determination means has already transmitted / received data to / from an external device. If determined, or if the interface to which the signal detected by the detecting means is input by the third determining means does not match the interface whose priority is designated high by the priority designation means If determined, the communication through the already established interface is maintained, and the priority is higher in the interface in which the signal detected by the detecting means is input by the third determining means and the priority specifying means. If it is determined that the specified interface matches, the interface is switched to an interface with a higher priority and the interface with a lower priority is not. And a control means for inhibiting signal inputs Eisu,
A composite portable electronic device comprising: In a composite portable electronic device having a contact interface and a non-contact interface, and selectively communicating with an external device through the contact interface or the non-contact interface,
Priority designation means for designating priority of the contact type interface and the non-contact type interface;
Detecting means for detecting to which interface a signal is input when a signal is input from an external device to either the contact-type interface or the non-contact-type interface;
Counting means for counting the number of times detected by the detecting means;
First determination means for determining whether or not the count value of the counting means is greater than or equal to a predetermined value set in advance;
When the first determination means determines that the count value of the counting means is greater than or equal to a predetermined value, communication performed using either the contact-type interface or the non-contact-type interface is performed. A second determination means for determining whether the electronic device is immediately after the start of the start of the possible electronic device or whether the data transmission / reception with the external device has already been performed;
Third determination for determining whether or not the data transmission / reception has been completed up to a predetermined process when it is determined by the second determination means that the data transmission / reception has already been performed with the external device. Means,
The signal detected by the detection means when it is determined by the second determination means that it is immediately after start-up or when the third determination means determines that data transmission / reception has been completed up to a predetermined process A fourth determination means for determining whether or not the interface to which the priority is designated and the interface whose priority is designated high by the priority designation means;
When it is determined by the first determination means that the count value of the counting means is not a predetermined value or more, or when it is determined by the third determination means that data transmission / reception has not been completed up to a predetermined process, Alternatively, when it is determined by the fourth determination means that the interface to which the signal detected by the detection means is input does not match the interface whose priority is designated high by the priority designation means The communication using the already established interface is maintained, and the interface in which the signal detected by the detection unit is input by the fourth determination unit and the interface in which the priority is designated high by the priority designation unit. If it is determined that the interface matches, the interface is switched to a higher priority interface, and the interface is not a higher priority signal. And control means for inhibiting force,
A composite portable electronic device comprising:   The contact type interface and the non-contact type interface are communication systems described in ISO / IEC7816-3 and ISO / IEC14443, which are international standardization standards, respectively. A composite portable electronic device according to claim 1.   Immediately after the start of startup, the initial response information (ATR: Answer To Reset) described in ISO / IEC7816-3, which is an international standard, is being output, or waiting for data reception from an external device immediately after the initial response information is output. The composite portable electronic device according to claim 1, wherein the composite portable electronic device is in a state.   3. The state immediately after the start of startup is a state of waiting for reception of a collision prevention command (REQB: Request Command, Type B) described in ISO / IEC144443-3 which is an international standard. A composite portable electronic device according to any one of the above.   Immediately after the start of the start, the initialization request response (ATQB: Answer To Request, Type B) described in ISO / IEC144443-3 which is an international standard is being output, or data reception is waited immediately after the initialization request response is output. The composite portable electronic device according to claim 1, wherein the composite portable electronic device is in a state.   4. The composite mobile phone according to claim 3, wherein the predetermined process of data transmission / reception determined by the third determination means is a settlement transaction described in EMV-CPS, which is a credit card industry standardized specification. Possible electronic device. In a composite IC card having a contact type interface and a non-contact type interface, and selectively communicating with an external device through these contact type interface or non-contact type interface,
Priority specifying means for specifying the priority order of the contact interface and the non-contact interface, and when either a signal is input from an external device to either the contact interface or the non-contact interface Detection means for detecting whether a signal is input to the interface and communication performed using either the contact type interface or the non-contact type interface is immediately after the start of activation of the composite IC card, or externally A first determination means for determining whether or not data transmission / reception with the apparatus has already been performed, and a signal detected by the detection means when the first determination means determines that it has just started Whether or not the interface to which the priority is designated and the interface whose priority is designated high by the priority designation means The second determining means to be determined and the first determining means to determine that the data is already being transmitted / received to / from an external device, or the detecting means is determined by the second determining means. If it is determined that the interface to which the signal detected in step 1 is not matched with the interface whose priority is designated as high by the priority designation means, communication using the already established interface is maintained. If it is determined by the second determination means that the interface to which the signal detected by the detection means is input matches the interface whose priority is designated high by the priority designation means, the priority order An IC module having a control means for switching to a higher-order interface and prohibiting signal input of an interface whose priority is not higher,
An IC card body containing the IC module;
A composite IC card characterized by comprising: In a composite IC card having a contact type interface and a non-contact type interface, and selectively communicating with an external device through these contact type interface or non-contact type interface,
Priority specifying means for specifying the priority order of the contact interface and the non-contact interface, and when either a signal is input from an external device to either the contact interface or the non-contact interface Detection means for detecting whether a signal is input to the interface, counting means for counting the number of times detected by the detection means, and determining whether the count value of the counting means is equal to or greater than a predetermined value set in advance When the first determination means and the first determination means determine that the count value of the counting means is equal to or greater than a predetermined value, the contact type interface or the non-contact type interface is used. Whether the communication to be performed is immediately after the start of activation of the composite IC card, or whether data transmission / reception has already been performed with an external device A second determination unit for determining, and when the second determination unit determines that the start immediately after the start of the activation, the interface in which the signal detected by the detection unit is input and the priority level specifying unit has a higher priority level. A third determination unit that determines whether or not the interface designated by the first determination unit and the first determination unit determine that the count value of the counting unit is not equal to or greater than a predetermined value, or When it is determined by the second determination means that the data transmission / reception has already been performed with the external device, or when the signal detected by the detection means is input by the third determination means. If it is judged that the interface does not match the interface whose priority is designated high by the priority designation means, the communication with the already established interface is maintained. When it is determined by the third determination means that the interface to which the signal detected by the detection means is input matches the interface whose priority is designated high by the priority designation means, the priority is given. An IC module having a control means for switching to a high-order interface and prohibiting signal input of a non-high-priority interface;
An IC card body containing the IC module;
A composite IC card characterized by comprising: In a composite IC card having a contact type interface and a non-contact type interface, and selectively communicating with an external device through these contact type interface or non-contact type interface,
Priority specifying means for specifying the priority order of the contact interface and the non-contact interface, and when either a signal is input from an external device to either the contact interface or the non-contact interface Detection means for detecting whether a signal is input to the interface, counting means for counting the number of times detected by the detection means, and determining whether the count value of the counting means is equal to or greater than a predetermined value set in advance When the first determination means and the first determination means determine that the count value of the counting means is equal to or greater than a predetermined value, the contact type interface or the non-contact type interface is used. Whether the communication to be performed is immediately after the start of activation of the composite IC card, or whether data transmission / reception has already been performed with an external device If it is determined by the second determination means to be in a state where data transmission / reception has already been performed between the second determination means and the external device, whether the data transmission / reception has been completed up to a predetermined process. A third determination unit that determines whether or not the second determination unit determines that the start has just started, or the third determination unit determines that data transmission / reception has been completed up to a predetermined process. If so, fourth determination means for determining whether or not the interface to which the signal detected by the detection means is input matches the interface whose priority is designated high by the priority designation means. When the first determination means determines that the count value of the counting means is not equal to or greater than a predetermined value, or the third determination means has completed data transmission and reception up to a predetermined process. Or the interface to which the signal detected by the detection means is input by the fourth determination means does not match the interface whose priority is designated high by the priority designation means. If it is determined that the communication is performed by the already established interface, the priority is determined by the interface in which the signal detected by the detection unit is input by the fourth determination unit and the priority designation unit. An IC module having control means for switching to an interface with a higher priority when it is determined that the interface designated as a higher level matches, and prohibiting signal input of an interface with a higher priority level; ,
An IC card body containing the IC module;
A composite IC card characterized by comprising:

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