JP5085254B2 - Portable electronic device, IC card, and command processing method in portable electronic device - Google Patents

Description

  The present invention relates to a portable electronic device such as an IC card having a plurality of external interfaces for performing data communication with an external device by various communication methods and a control element such as a CPU, and command processing in the portable electronic device. Regarding the method.

  In recent years, an IC card having a plurality of external interfaces has been proposed. For example, some contact-type IC cards that perform data communication by physically contacting an external device can perform a plurality of types of communication using a plurality of I / O terminals. As a specific example, the ISO / IEC7816 series defines three types of I / O terminals: C7 (I / O), C6 (SPU I / O), and C4 + C8 (AUX1 + AUX2). In such a case, simultaneous connection with an external device through a plurality of I / O terminals is assumed.

However, at present, it is not defined how each process for a plurality of commands received at a plurality of I / O terminals at the same time should be executed. In other words, if a second command is received at another I / O terminal while processing for the first command received at one I / O terminal is being executed, how should the second command be processed? There is no clear provision. For this reason, an IC card having a plurality of I / O terminals that can communicate with different communication methods is required to realize optimum processing for each command received separately at a plurality of I / O terminals at the same time. Has been.
ISO / IEC7816

  In one aspect of the present invention, the above-described problems are solved, and even when a plurality of external interfaces are provided, processing for a plurality of commands received by each external interface is efficiently performed. An object of the present invention is to provide a portable electronic device capable of performing the above and a command processing method in the portable electronic device.

  A portable electronic device according to an aspect of the present invention includes: a plurality of communication units that communicate with an external device; and the first command received by the first communication unit among the plurality of communication units during the processing When a second command is received by a second communication unit different from the first communication unit among a plurality of communication units, a processing method for the second command is determined based on the content of the first command Determination means, and processing means for processing the second command based on the processing method determined by the determination means.

  A portable electronic device according to an aspect of the present invention includes: a plurality of communication units that communicate with an external device; and the first command received by the first communication unit among the plurality of communication units during the processing When the second command is received by a second communication unit different from the first communication unit among the plurality of communication units, the second command is based on the content of the first command and the type of the second command. Determining means for determining the processing method for the command, and processing means for processing the second command based on the processing method determined by the determining means.

  A command processing method in a portable electronic device as one aspect of the present invention has a plurality of communication means for communicating with an external device, and performs processing according to a command received from the external device by the communication means The first communication means of the plurality of communication means during processing of the first command received by the first communication means of the plurality of communication means. When a second command is received by a different second communication means, and the second command is received by the second communication means during processing of the first command received by the first communication means, the first command The processing method for the second command is determined based on the contents of the command, and the second command is processed based on the determined processing method.

  A command processing method in a portable electronic device according to an aspect of the present invention includes a plurality of communication means for communicating with an external device, and the communication means performs processing according to a command received from the external device. A method used for a possible electronic device, wherein a first command out of the plurality of communication means is different from the first communication means during processing of a first command received by the first communication means among the plurality of communication means. If the second command is received by the second communication means while the second command is received by the second communication means and the first command received by the first communication means is being processed, the first command The processing method for the second command is determined based on the content of the second command and the content of the second command, and the second command is processed based on the determined processing method

  According to one aspect of the present invention, it is possible to provide a portable electronic device and a method for controlling the portable electronic device that can efficiently perform processing on a plurality of commands received by a plurality of external interfaces.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 schematically shows a configuration example of an IC card system and an IC card according to the present embodiment.
The IC card system shown in FIG. 1 includes an external device 1 and an IC card 2. The IC card 2 performs various processes in response to processing requests (commands) from the external device 1. Further, it is assumed that the IC card 2 and the external device 1 each have an interface for performing data communication by a plurality of communication methods. In the example shown in FIG. 1, the IC card 2 is a contact type IC card having a contact portion composed of a plurality of input / output terminals (I / O terminals). It is assumed that these terminals can communicate with external devices by various communication methods.

Next, the configuration of the IC card 2 will be described.
In the configuration example shown in FIG. 1, the IC card 2 includes a control element 21, a program memory 22, a working memory 23, a data memory 24, a contact portion 25, and the like. The IC card 2 includes a module 2b having a control element 21, a program memory 22, a working memory 23, a data memory 24, and a contact portion 25 in a card-like main body 2a. The module 2b is composed of one or a plurality of IC chips. The module 2b is embedded in the main body 2a so that the contact portion 25 is exposed on the surface of the main body 2a.

  The control element 21 controls the entire IC card 2. The control element 21 is constituted by a CPU or the like. The control element 21 realizes various functions by executing programs stored in the program memory 22 or the data memory 24.

  The program memory 22 is composed of a non-rewritable fixed memory such as a mask ROM (read only memory). The program memory 22 stores a control program, control data, and the like including subroutines for causing the control element to execute various basic processes as an IC card. For example, the program memory 22 stores a program for realizing processing according to a command given from the external device 1. The program memory 22 includes a processing determination table 22a for determining a processing method for a command received at another I / O terminal while executing processing of a command received at a certain I / O terminal. Yes. The processing determination table 22a may be provided in the data memory 24.

  The working memory 23 is a working memory for temporarily storing processing data when the control element 21 performs processing. The working memory 23 is composed of a volatile memory such as a RAM (Random Access Memory).

  The data memory 24 is composed of a rewritable nonvolatile memory. For example, the data memory 24 is composed of a rewritable nonvolatile memory such as an EEPROM (Electrical Eraseable and Programmable Read Only Memory) or a flash ROM. Various data are stored in the data memory 24. For example, the data memory 24 stores data corresponding to the operation mode of the IC card 2.

  The contact unit 25 is an interface unit for performing data communication by physically contacting the external device 1. The contact section 25 has a plurality of I / O terminals for performing data communication (data input / output) with the outside using different communication methods. For example, in the example shown in FIG. 1, the I / O terminal C6 is used as an interface for performing communication by a communication method called SWP (Single Wire Protocol). The I / O terminal C7 is used as an interface for performing serial communication. The I / O terminals C4 and C8 are used as interfaces for performing communication by a connection method called USB (Universal Serial Bus). For example, an antenna for performing communication as a non-contact type IC card may be connected to the I / O terminals C2 and C3. In this case, the I / O terminals C2 and C3 are used as an interface for performing communication as a non-contact type IC card.

Next, a format example of a command given from the external device 1 to the IC card 2 will be described.
FIG. 2 shows a configuration example of a command for requesting data writing as an example of the command format. Note that the command format shown in FIG. 2 is defined by ISO / IEC7816.

  In the example shown in FIG. 2, the command given to the IC card 2 includes a “CLA” portion, an “INS” portion, a “P1” portion, a “P2” portion, an “Lc” portion, a “Data” portion, and the like. . The “CLA” part and the “INS” part store code information (CLA / INS code) indicating the type (processing content) of the command. The “CLA” code is code information that specifies a compliant standard or the like. The “INS” code is code information for designating the type (processing content) to be executed. For example, when the INS code as shown in FIG. 2 is “DC”, it indicates that the command is a command for requesting data writing.

  In the “P1” part and “P2” part, information indicating parameters related to processing is set. For example, in “P1” and “P2”, information for specifying information to be accessed such as a record to be accessed or an offset value is set. That is, for the command in the format shown in FIG. 2, the process specified by the CLA / INS code is executed according to the parameters specified by “P1” and “P2”. In the “Lc” portion, information indicating the length of the “Data” portion is set. In the “Data” portion, write data or rewrite data is stored. Therefore, the command shown in FIG. 2 requests a process of writing data stored in the “Data” portion for the areas specified by the “P1” portion and the “P2” portion. For example, “Data” is omitted in a command that does not require “Data” such as a read command.

Next, the process determination table 22a will be described.
The processing determination table 22a specifies a processing method when a command is received at an I / O terminal of another communication method while a command received at an I / O terminal of a certain communication method is being executed. For example, when the second command is received by SWP (C6: SPU I / O) while the first command received by serial I / O (C7) is being executed, the processing for the second command is performed in the process determination table. It is executed based on the processing method defined in 22a. Therefore, in the process determination table 22a, information indicating the process contents is stored in association with the contents of the first command, the contents of the second command, or the combination of the first command and the second command. Is done.

FIG. 3 is a diagram illustrating a first configuration example of the processing determination table 22a.
In the processing determination table 22a shown in FIG. 3, information indicating the processing method for the second command is stored in association with the content of the second command. That is, in the processing determination table 22a shown in FIG. 3, when a command (second command) is received at another I / O terminal while executing a command (first command) received at a certain I / O terminal. Information for determining the processing method for the second command based on the content of the second command is stored. For example, when a command (second command) is received by SWP (C6) while executing a command (first command) received by serial I / O (C7), the processing method for the second command is A processing method stored in the processing determination table 22a in association with the content of the second command is employed.

  In the example shown in FIG. 3, the information indicating the content of the second command is a CLA / INS code (information indicating the processing content). However, in the processing determination table 22a, the information indicating the content of the received second command may be data (processing parameters) of the “P1” and “P2” sections, or the CLA / INS code and “P1”. In addition, it may be a combination with the parameter of “P2”, may be data to be accessed by the second command, or may be the data to be accessed by the second command and the processing content for the data. A combination may be used. In the example shown in FIG. 3, the processing determination table 22a stores information indicating the processing method of the second command in association with the CLA / INS code (information indicating the processing content) of the second command. Yes.

  Further, as the setting example of the processing method for the second command according to the content of the second command, the following settings (1-1), (1-2), and (1-3) are considered. It is done.

(1-1) A command that can be processed at any time is assumed as an example of the second command that is set to be unacceptable for processing the second command. That is, a command that does not have an access condition and that does not affect the subsequent command processing can be considered.

(1-2) As an example of the second command that is set when the second command is added to the execution queue, the command processing does not have to be executed immediately, but the command processing affects the subsequent command processing. Command is considered.

(1-3) As an example of the second command that is set when the command processing being executed is interrupted and the second command is executed immediately, a command that should immediately execute command processing can be considered. For example, a command that allows a user of a financial application to execute a transaction is assumed.

FIG. 4 is a diagram illustrating a second configuration example of the process determination table 22a.
In the processing determination table 22a shown in FIG. 4, information indicating the processing method for the second command is stored in association with the information indicating the command being executed (first command). That is, in the processing determination table 22a shown in FIG. 4, when a command (second command) is received at another I / O terminal while a command (first command) received at a certain I / O terminal is being executed. Information for determining the processing method for the second command based on the content of the first command is stored. For example, when a command (second command) is received by SWP (C6) while a command (first command) received by serial I / O (C7) is being executed, the processing method for the second command is executed. A processing method stored in the processing determination table 22a in association with the content of the first command is adopted.

  Further, in the processing determination table 22a shown in FIG. 4, the information indicating the content of the first command may be a CLA / INS code (information indicating the processing content), or the “P1” and “P2” portions. It may be data (processing parameters), may be a combination of CLA / INS code and “P1” and “P2” parameters, or may be data to be accessed by the first command. However, it may be a combination of data to be accessed by the first command and information indicating the processing content for the data.

  In addition, as the setting example of the processing method for the second command according to the contents of the first command, the following settings (2-1), (2-2), and (2-3) are considered. It is done.

(2-1) As an example of the first command that is set when the second command cannot be accepted, a command whose command processing time is indefinite, a command that changes the state of the nonvolatile memory, and the like can be considered. This is because the command processing time is indefinite, and the first command processing time is indefinite, so the second command waiting time is indefinite. In addition, a command for changing the state of the nonvolatile memory may cause the data in the memory to be in an intermediate state when the process is stopped. For example, if a write command or the like is interrupted, the data string writing becomes a half-finished state. For this reason, the first command that changes the state of the nonvolatile memory such as the write command cannot accept the processing of the second command.

(2-2) As an example of the first command that is set when the second command is added to the execution queue, the command processing time is constant (the range in which the waiting time is not affected by communication of the second command). Thus, commands in which command processing affects subsequent command processing can be considered. This is because if the processing time of the first command is constant, the waiting time of the second command is fixed and safe processing is possible.

(2-3) As an example of the first command that is set when the command processing being executed is interrupted and the second command is executed immediately, a command that can be processed at any time can be considered. That is, it is assumed that there is no access condition and the command processing does not affect the subsequent command processing. For example, a command that does not change the data in the nonvolatile memory, such as a read command, can be executed again even after interruption. Therefore, the first command that does not change the data in the nonvolatile memory can be operated so that the second command is executed with priority.

FIG. 5 is a diagram illustrating a third configuration example of the processing determination table 22a.
The processing determination table 22a shown in FIG. 5 shows a processing method for the second command in association with information indicating the command being executed (first command) and information indicating the received command (second command). Information is stored. That is, in the processing determination table 22a shown in FIG. 5, when a command (second command) is received at another I / O terminal while a command (first command) received at a certain I / O terminal is being executed. The information for determining the processing method for the second command based on the contents of the first command and the second command is stored. For example, when a command (second command) is received by SWP (C6) while a command (first command) received by serial I / O (C7) is being executed, the processing method for the second command is: A processing method stored in the processing determination table 22a in association with the contents of the first command and the second command is employed.

  In the processing determination table 22a shown in FIG. 5, the information indicating the content of the first command includes CLA / INS code (information indicating the processing content), data of “P1” and “P2” parts (processing parameters), A combination of a CLA / INS code and “P1” and “P2”, data to be accessed, or a combination of data to be accessed and information indicating processing contents for the data is assumed. Similarly, in the processing determination table 22a shown in FIG. 5, the information indicating the content of the second command includes the CLA / INS code (information indicating the processing content), data of the “P1” and “P2” portions (processing parameters). A combination of a CLA / INS code and parameters of “P1” and “P2”, data to be accessed, or a combination of data to be accessed and information indicating processing contents for the data is assumed. With the combination of these pieces of information, information for specifying the contents of the first command and the contents of the second command is stored in the processing determination table 22a as shown in FIG. Information indicating a processing method for the second command is stored.

  As examples of setting the processing method for the second command according to the combination of the first command and the second command, the above-described (1-1), (1-2), and (1-3) Combinations of commands and the commands (2-1), (2-2), and (2-3) are conceivable. The combination of the first command and the second command can be set according to the processing characteristics or operation mode of each command.

  The processing determination table 22a as shown in FIG. 3, FIG. 4, or FIG. 5 can be designed as follows depending on the number or type of communication methods supported by the IC card 2.

  First, the process determination table 22a can be set for each I / O terminal of each communication method. For example, in an IC card having serial I / O and SWP, a SWP processing determination table for determining processing for a command received by SWP during execution of a command received by serial I / O, and reception by SWP A serial I / O processing determination table for determining a processing method for a command received by the serial I / O during execution of the command may be provided. Further, in an IC card that supports three or more communication methods, a process determination table for each communication method may be provided.

  Further, in an IC card that is serving three or more communication methods, a process determination table corresponding to another communication method may be set as the process determination table for each communication method. For example, when the first, second, and third communication methods are supported, the first communication method table for the second communication method and the third communication processing table for the first communication method are used. A table for the first communication method for the communication method may be provided. Here, the table for the first communication method for the second (third) communication method is a command received by the first communication method while executing a command received by the second (third) communication method. This means that the table is used for determining the processing method. As described above, when three or more communication methods are supported, by providing a processing determination table for each communication method according to the mutual relationship of each communication method, an optimum according to the priority for each communication method is provided. The processing method can be set.

Next, the flow of command processing in the IC card 2 as described above will be described.
In the IC card 2 having a plurality of I / O terminals capable of communication by a plurality of communication methods as described above, commands can be received by each communication method. For example, the IC card 2 can receive a command with another communication method even when processing a command received with one communication method is being executed. Further, it is assumed that the IC card 2 does not receive the next command at the I / O terminal until the processing for the command received at the I / O terminal of a certain communication method is completed.

  That is, the IC card 2 does not receive another command with the same communication method while executing a command received with a certain communication method, but with another communication method while executing a command received with a certain communication method. It is also possible to receive another command. For example, it is assumed that the IC card 2 supports a serial I / O communication function at the I / O terminal (C7) and a SWP communication function at the I / O terminal (C6). In such a case, the IC card 2 can receive the command with the SWP (C6) even when the command received with the serial I / O (C7) is being executed.

In the following description, in order to simplify the description, the IC card 2 has a serial I / O (C7) as a first communication means and a SWP (C6) as a second communication means. To do. In addition, here, it is assumed that the IC card 2 performs processing for a command received by the SWP (C6).
The processing example described below can be applied to an IC card that can receive commands using a plurality of communication methods at the same time. For example, even if the IC card 2 further includes another communication means such as USB (C4 + C8), the processing as shown in FIG. 6 can be realized. Similar processing can be realized by replacing the serial I / O (C7) and SWP (C6) in the following description.

FIG. 6 is a flowchart for explaining the flow of command processing in the IC card 2.
First, it is assumed that one of the I / O terminals (here, SWP (C6)) is waiting for command reception in the contact portion 25 of the IC card 2 (step S10). In this state, when the SWP (C6) receives a command (second command) from the external device 1 (step S11), the control element 21 receives an I / O terminal (in this case, a serial I / O) of another communication method. It is determined whether or not the process for the command received in (C7) is being executed (step S12).

  If it is determined by this determination that processing for the command received at the serial I / O (C7) is not being executed (step S12, NO), the control element 21 receives the command received at SWP (C6) as normal command processing. (Step S20), and response data indicating the processing result is transmitted to the external device 1 that is the transmission source of the command (step S21).

  If it is determined that the process for the command (first command) received by the serial I / O (C7) is being executed (YES in step S12), the control element 21 determines that the second command is being processed. Processing for determining the processing method is performed. The determination process of this processing method is executed according to the contents stored in the process determination table 22a.

  For example, when the processing method is defined in association with the content of the received second command as in the processing determination table 22a shown in FIG. 3, the control element 21 refers to the content of the second command. (Step S13), the processing method associated with the content of the second command is determined based on the processing determination table 22a (step S14). That is, in this case, the control element 21 determines the processing method for the second command based on the content of the second command.

  When the processing method is defined in association with the contents of the first command being executed as in the processing determination table 22a shown in FIG. 4, the control element 21 determines the first command being executed. The content is referred to (step S13), and the processing method associated with the content of the first command is determined based on the processing determination table 22a (step S14). That is, in this case, the control element 21 determines a processing method for the second command based on the content of the first command.

  If the processing method is defined in association with the combination of the content of the first command being executed and the content of the received second command, as in the processing determination table 22a shown in FIG. The element 21 refers to the contents of the first command and the second command (step S13), and determines the processing method for the second command associated with the combination of the first command and the second command. A determination is made based on the table 22a (step S14). That is, in this case, the control element 21 determines the processing method for the second command based on the combination of the first command and the second command.

  When it is determined that the second command cannot be accepted (executable) as a processing method for the second command based on the above determination (step S15, YES), the control element 21 uses the serial I as another communication method. Since the processing of the command received at / O is being executed, information indicating that the second command cannot be accepted is transmitted to the external device 1 that is the transmission source of the second command (step S16). The process for the command is terminated.

  If it is determined that the second command is in the execution waiting state as a processing method for the second command (step S17, YES), the control element 21 uses the command data of the second command as an execution waiting example. An additional note is made (step S18). The execution queue is a storage area provided in the working memory 23, for example. Command data is sequentially accumulated (added) in this execution queue. For example, if multiple commands that should be waiting to be executed in multiple communication methods other than the communication method that received the command being executed are received during command execution, those command data are stored in order in the execution queue example. Is done. When the IC card 2 supports only two communication methods, the control element 21 of the IC card 2 immediately executes the second command waiting for execution when the first command being executed is completed. Is possible.

  Further, each command data accumulated in the execution waiting example is sequentially processed after the command processing being executed is completed. That is, when command data is accumulated in the execution waiting example, the control element 21 waits for the end of the first command being executed as a process for the second command (step S19). When the processing of the first command is completed in this state, the control element 21 executes processing for the command data as the second command accumulated in the execution waiting example (step S20). However, if another command data is accumulated before the command data of the second command in the execution queue, the processing for the second command is executed after the processing for the command data. .

  When the process for the command data of the second command accumulated in the execution queue is executed, the control element 21 sends response data indicating the processing result for the second command to the external device 1 that is the transmission source of the second command. Transmit (step S21), and the process for the second command is terminated.

  In addition, when it is determined that the processing for the first command being executed is interrupted as the processing method for the second command and the second command is immediately executed (step S22, YES), the control element 21 is executing The process for interrupting the process for the first command is performed (step S23). The process of interrupting the first command being executed is, for example, interrupting the process for the first command being executed and notifying the external device 1 that is the transmission source of the first command that the process has been interrupted. To do. For the interrupted first command, command data may be accumulated in the execution queue, and the processing may be resumed (re-executed) after the second command ends.

  When the process for the first command is interrupted, the control element 21 executes the process for the second command (step S20). The control element 21 transmits response data including the processing result for the second command to the external device 1 that is the transmission source of the second command (step S21), and ends the processing for the second command.

As described above, in the IC card 2 according to the present embodiment, the second communication is in progress while processing the first command received by the first communication method (for example, the serial I / O I / O terminal (C7)). When a second command is received by a method (for example, SWP I / O terminal (C6)), the content of the received second command, the content of the first command being executed, or the first command The processing method for the received second command is determined based on the processing determination table 22a in which the processing method is defined in association with the combination of the command and the second command.
Thereby, the IC card 2 can process the command received at the I / O terminal of the SWP while executing the command received at the I / O terminal of the serial I / O by the optimum processing method.
[1]
A plurality of communication means for communicating with an external device;
During processing of the first command received by the first communication means of the plurality of communication means, the second command is received by the second communication means different from the first communication means among the plurality of communication means. A determination means for determining a processing method for the second command based on a content of the second command;
Processing means for processing the second command based on the processing method determined by the determination means;
A portable electronic device comprising:
[2]
The determination means determines a processing method for the second command based on a type of the second command or a designated parameter of the second command as the content of the second command.
The portable electronic device according to [1], characterized in that
[3]
A plurality of communication means for communicating with an external device;
During processing of the first command received by the first communication means of the plurality of communication means, the second command is received by the second communication means different from the first communication means among the plurality of communication means. A determination means for determining a processing method for the second command based on the content of the first command;
Processing means for processing the second command based on the processing method determined by the determination means;
A portable electronic device comprising:
[4]
The determination means determines a processing method for the second command based on a type of the first command or a designated parameter of the first command as the content of the first command.
The portable electronic device according to the above [3], which is characterized in that
[5]
A plurality of communication means for communicating with an external device;
During processing of the first command received by the first communication means of the plurality of communication means, the second command is received by the second communication means different from the first communication means among the plurality of communication means. A determination means for determining a processing method for the second command based on a content of the first command and a type of the second command;
Processing means for processing the second command based on the processing method determined by the determination means;
A portable electronic device comprising:
[6]
The determination means includes a combination of the first command and the second command as a type of the first command or a designated parameter of the first command, a type of the second command, or the second command. A processing method for the second command is determined based on a designated parameter of the command of
The portable electronic device according to [5] above, wherein
[7]
The determination means determines whether to accept the second command as one of processing methods,
When the determination unit determines that the second command cannot be accepted, the processing unit processes the second command with respect to a transmission source of the second command by the second communication unit. Send a message that it is not possible,
The portable electronic device according to any one of [1] to [6], wherein:
[8]
The determination means determines whether to execute the second command by interrupting the processing of the first command as one of the processing methods,
The processing means interrupts the processing for the first command when the determination means determines that the processing of the first command is interrupted and executes the second command, and the processing for the second command is interrupted. Execute the process,
The portable electronic device according to any one of the above [1] to [7].
[9]
The determination means determines, as one of processing methods, whether or not to put the second command into an execution waiting state,
The processing means executes the second command after the processing of the first command is completed when the determination means determines that the second command is in an execution waiting state.
The portable electronic device according to any one of [1] to [8], wherein:
[10]
A plurality of communication means for communicating with an external device;
During processing of the first command received by the first communication means of the plurality of communication means, the second command is received by the second communication means different from the first communication means among the plurality of communication means. A storage means for sequentially storing command data of the second command as command data waiting for execution;
Processing means for sequentially executing processing according to command data stored in the storage means when processing of the first command being executed is completed;
A portable electronic device comprising:
[11]
A command processing method used for a portable electronic device having a plurality of communication means for communicating with an external device and performing processing according to a command received from the external device by the communication means,
The second command received by the second communication means different from the first communication means among the plurality of communication means during processing of the first command received by the first communication means among the plurality of communication means. ,
When the second command is received by the second communication means while the first command received by the first communication means is being processed, processing for the second command is performed based on the content of the second command Determine the method,
Processing the second command based on the determined processing method;
A command processing method in a portable electronic device.
[12]
A command processing method used for a portable electronic device having a plurality of communication means for communicating with an external device and performing processing according to a command received from the external device by the communication means,
The second command received by the second communication means different from the first communication means among the plurality of communication means during processing of the first command received by the first communication means among the plurality of communication means. ,
When the second command is received by the second communication unit while the first command received by the first communication unit is being processed, the process for the second command is performed based on the content of the first command Determine the method,
Processing the second command based on the determined processing method;
A command processing method in a portable electronic device.
[13]
A command processing method used for a portable electronic device having a plurality of communication means for communicating with an external device and performing processing according to a command received from the external device by the communication means,
The second command received by the second communication means different from the first communication means among the plurality of communication means during processing of the first command received by the first communication means among the plurality of communication means. ,
When the second command is received by the second communication unit while the first command received by the first communication unit is being processed, based on the content of the first command and the content of the second command To determine a processing method for the second command,
Processing the second command based on the determined processing method;
A command processing method in a portable electronic device.
[14]
A command processing method used for a portable electronic device having a plurality of communication means for communicating with an external device and performing processing according to a command received from the external device by the communication means,
The second command received by the second communication means different from the first communication means among the plurality of communication means during processing of the first command received by the first communication means among the plurality of communication means. ,
When the second command is received by the second communication means while the first command received by the first communication means is being processed, the command data of the second command is stored as command data waiting for execution. Sequentially memorize
When processing of the first command being executed is completed, processing corresponding to command data stored in the storage means is sequentially executed.
A command processing method in a portable electronic device.
[15]
A plurality of communication means for communicating with an external device, and a first communication means among the plurality of communication means during processing of a first command received by the first communication means among the plurality of communication means When a second command is received by a different second communication means, a determination means for determining a processing method for the second command based on the content of the second command, and a processing method determined by the determination means A module comprising processing means for processing the second command based on;
A main body comprising the module;
An IC card characterized by comprising:
[16]
A plurality of communication means for communicating with an external device, and a first communication means among the plurality of communication means during processing of a first command received by the first communication means among the plurality of communication means When a second command is received by a different second communication means, a determination means for determining a processing method for the second command based on the content of the first command, and a processing method determined by the determination means A module comprising processing means for processing the second command based on;
A main body comprising the module;
An IC card characterized by comprising:
[17]
A plurality of communication means for communicating with an external device, and a first communication means among the plurality of communication means during processing of a first command received by the first communication means among the plurality of communication means A determination unit that determines a processing method for the second command based on a content of the first command and a type of the second command when a second command is received by a different second communication unit; A module comprising processing means for processing the second command based on the processing method determined by the determination means;
A main body comprising the module;
An IC card characterized by comprising:
[18]
A plurality of communication means for communicating with an external device, and a first communication means among the plurality of communication means during processing of a first command received by the first communication means among the plurality of communication means When the second command is received by different second communication means, the storage means for sequentially storing the command data of the second command as command data waiting for execution and the processing of the first command being executed are completed A module having processing means for sequentially executing processing corresponding to the command data stored in the storage means,
A main body comprising the module;
An IC card characterized by comprising:

1 is a block diagram schematically showing a configuration example of an IC card system and an IC card according to an embodiment of the present invention. The figure which shows the example of a format of a command. The figure which shows the 1st structural example of a process determination table. The figure which shows the 2nd structural example of a process determination table. The figure which shows the 3rd structural example of a process determination table. The flowchart for demonstrating the flow of command processing.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 ... External device, 2 ... IC card (portable electronic device), 2a ... Main body, 2b ... Module, 21 ... Control element (determination means, processing means), 22 ... Program memory, 22a ... Process determination table, 23 ... Working Memory (storage means), 24... Data memory, 25... Contact part, C1, C2, C3, C4, C5, C6, C7, C8... I / O terminal (plural communication means).

Claims (11)

A plurality of communication means for communicating with an external device;
During processing of the first command received by the first communication means of the plurality of communication means, the second command is received by the second communication means different from the first communication means among the plurality of communication means. A determination means for determining a processing method for the second command based on the content of the first command;
Processing means for processing the second command based on the processing method determined by the determination means;
A portable electronic device . The determination means determines a processing method for the second command based on a type of the first command or a designated parameter of the first command as the content of the first command.
The portable electronic device according to claim 1 . A plurality of communication means for communicating with an external device;
During processing of the first command received by the first communication means of the plurality of communication means, the second command is received by the second communication means different from the first communication means among the plurality of communication means. A determination means for determining a processing method for the second command based on a content of the first command and a type of the second command;
Processing means for processing the second command based on the processing method determined by the determination means;
A portable electronic device . The determination means includes a combination of the first command and the second command as a type of the first command or a designated parameter of the first command, a type of the second command, or the second command. A processing method for the second command is determined based on a designated parameter of the command of
The portable electronic device according to claim 3 . The determination means determines whether to accept the second command as one of processing methods,
When the determination unit determines that the second command cannot be accepted, the processing unit processes the second command with respect to a transmission source of the second command by the second communication unit. Send a message that it is not possible,
The portable electronic device according to any one of claims 1 to 4 . The determination means determines whether to execute the second command by interrupting the processing of the first command as one of the processing methods,
The processing means interrupts the processing for the first command when the determination means determines that the processing of the first command is interrupted and executes the second command, and the processing for the second command is interrupted. Execute the process,
The portable electronic device according to any one of claims 1 to 5 . The determination means determines, as one of processing methods, whether or not to put the second command into an execution waiting state,
The processing means executes the second command after the processing of the first command is completed when the determination means determines that the second command is in an execution waiting state.
The portable electronic device according to any one of claims 1 to 6 . A command processing method used for a portable electronic device having a plurality of communication means for communicating with an external device and performing processing according to a command received from the external device by the communication means,
The second command received by the second communication means different from the first communication means among the plurality of communication means during processing of the first command received by the first communication means among the plurality of communication means. ,
When the second command is received by the second communication unit while the first command received by the first communication unit is being processed, the process for the second command is performed based on the content of the first command Determine the method,
Processing the second command based on the determined processing method;
Command processing method in portable electronic device . A command processing method used for a portable electronic device having a plurality of communication means for communicating with an external device and performing processing according to a command received from the external device by the communication means,
The second command received by the second communication means different from the first communication means among the plurality of communication means during processing of the first command received by the first communication means among the plurality of communication means. ,
When the second command is received by the second communication unit while the first command received by the first communication unit is being processed, based on the content of the first command and the content of the second command To determine a processing method for the second command,
Processing the second command based on the determined processing method;
Command processing method in portable electronic device . A plurality of communication means for communicating with an external device, and a first communication means among the plurality of communication means during processing of a first command received by the first communication means among the plurality of communication means When a second command is received by a different second communication means, a determination means for determining a processing method for the second command based on the content of the first command, and a processing method determined by the determination means A module comprising processing means for processing the second command based on;
A main body comprising the module;
IC card having A plurality of communication means for communicating with an external device, and a first communication means among the plurality of communication means during processing of a first command received by the first communication means among the plurality of communication means A determination unit that determines a processing method for the second command based on a content of the first command and a type of the second command when a second command is received by a different second communication unit; A module comprising processing means for processing the second command based on the processing method determined by the determination means;
A main body comprising the module;
IC card having

Images