JP5211826B2 - Information processing apparatus, information processing system, information processing method, and computer program - Google Patents

Description

  The present invention relates to an information processing apparatus, an information processing system, an information processing method, and a computer program. More specifically, the present invention relates to an information processing apparatus, an information processing system, an information processing method, and a computer program that execute communication processing and data processing associated with the communication processing.

  An IC card having an IC circuit and an antenna and capable of non-contact communication and a portable terminal having an IC card function are used in various fields. The IC card performs wireless communication with or without contact with the reader / writer. For example, data is transferred by wireless communication between the IC card and the reader / writer, and data writing and reading are performed in each device. The processing between the IC card and the reader / writer is described in, for example, Japanese Patent Application Laid-Open No. 2006-108886.

In the communication between the IC card and the reader / writer, for example, the following processing is performed.
The reader / writer outputs a command (processing request) packet to the IC card.
The IC card that has received the command packet performs processing according to the command.
The IC card returns a response packet after executing the process.
Such processing is performed. However, in this processing sequence, there is a possibility that a command packet or a response packet may be lost due to power interruption or noise.

  For this reason, the reader / writer performs a command retransmission (retry) process when a response packet to the command packet sent by itself cannot be received for a certain period of time. Here, the fixed time is a time in which a margin is added to the time required for the card to receive a response after receiving the command packet, and is called a maximum response time [Tmax]. The maximum response time [Tmax] is calculated by the reader / writer based on the processing contents specified by the reader / writer in the command packet and parameters determined based on the performance of the IC card received from the IC card.

  If the response packet from the IC card cannot be received even after the maximum response time [Tmax] has elapsed, the reader / writer determines that a processing error has occurred and starts error handling processing. For example, the command packet is retransmitted until a correct response packet is obtained. By performing such processing, the processing can be completed correctly.

  In such a system, when the processing time on the IC card side can be calculated as a fixed time, there is no problem in setting the predetermined maximum response time [Tmax] as the standby time. However, when the processing time dynamically changes depending on the internal state of the IC card, a problem may occur when the reader / writer sets a predetermined maximum response time [Tmax] as the standby time.

  For example, when executing processing using a device that performs data communication processing with a reader / writer and a device in which a module that executes data processing is set as a separate module, data transfer processing between the modules is required. Become. In such a configuration, the processing time becomes long, and even if the maximum response time [Tmax] is set as the standby time, the processing may not be completed within the maximum response time. In such a case, the reader / writer determines that a processing error has occurred and starts error handling processing.

If the reader / writer transmits a command packet and then loses the command packet in the communication path, the IC card cannot receive the command packet, and the IC card cannot start any processing. Also in this case, the reader / writer simply waits without executing any processing until the maximum response time [Tmax] has elapsed. In such a case, since no processing is executed on the IC card side, the error handling process is delayed even though an error always occurs as a result, thereby prolonging the time until the process is completed. Become.
JP 2006-108886 A

  The present invention has been made in view of the above problems, for example, in a data processing configuration involving data communication between an information processing device such as a reader / writer and an IC card, when the processing time on the command receiving side is prolonged or To provide an information processing apparatus, an information processing system, an information processing method, and a computer program capable of efficiently completing processing in accordance with a normal processing sequence even when packet loss occurs And

The first aspect of the present invention is:
A communication module that executes communication processing with an external communication device;
A data processing module for executing data processing by performing communication via the data transfer path with the communication module;
The communication module includes:
Message data storing a time determination parameter that does not include the data processing time in the data processing module as a parameter for determining the maximum response time that is an allowable waiting time from the command output in the communication device to the reception of the response of the communication module. Outputting to the communication device;
The information processing apparatus is configured to output a response message to the communication device after the command input from the communication device and before the end of the data processing in the data processing module.

  Furthermore, in one embodiment of the information processing apparatus of the present invention, the information processing apparatus further includes a power supply for supplying power to the communication module and the data processing module, and the communication module and the data processing module are The operation is performed by supplying power from the power source.

  Furthermore, in an embodiment of the information processing apparatus of the present invention, the communication module outputs a response message to the communication device after inputting a command from the communication device and before starting data processing in the data processing module. is there.

  Furthermore, in one embodiment of the information processing apparatus of the present invention, the message data output from the communication module is a polling response to the communication device.

  Furthermore, in one embodiment of the information processing apparatus of the present invention, the data processing executed by the data processing module is a data recording process for a storage unit or a data reading process from the recording unit, and the communication module A configuration in which a parameter for determining a maximum response time not including a processing time of a data recording process or a data reading process from the recording unit to be executed in the processing module is stored in the message data and output to the communication device It is.

  Furthermore, in one embodiment of the information processing apparatus of the present invention, the communication module receives a command from the communication device after outputting the data storing the parameter to the communication device, and the data processing module includes: The data processing according to the command is executed.

  Furthermore, in one embodiment of the information processing apparatus of the present invention, the communication module receives a processing result request from the communication device after receiving a data processing completion notification from the data processing module, and responds to the processing result request. As a response, the processing result input from the data processing module to the buffer of the communication module is output to the communication device.

  Furthermore, in one embodiment of the information processing apparatus of the present invention, the data output from the communication module to the communication device as a response to the processing result request from the communication device is transmitted from the data processing module to the communication module. Is the processing result flag input to the buffer.

  Furthermore, in one embodiment of the information processing apparatus of the present invention, the data output from the communication module to the communication device as a response to the processing result request from the communication device is transmitted from the data processing module to the communication module. The data read from the recording unit on the data processing module side is input to the buffer.

  Furthermore, in an embodiment of the information processing apparatus of the present invention, the communication device is a reader / writer, and the communication module stores data storing the parameters as a polling response in response to a polling request from the reader / writer. The data processing module outputs data to the writer, receives a command from the reader / writer, and the data processing module executes data processing according to the command.

Furthermore, the second aspect of the present invention provides
A communication device for performing wireless communication and an information processing apparatus;
The information processing apparatus includes:
A communication module that executes communication processing with an external communication device;
A data processing module for executing data processing by performing communication via the data transfer path with the communication module;
The communication module includes:
Message data storing a time determination parameter that does not include the data processing time in the data processing module as a parameter for determining the maximum response time that is an allowable waiting time from the command output in the communication device to the reception of the response of the communication module. Outputting to the communication device;
After the command input from the communication device, the response message is output to the communication device before the end of the data processing in the data processing module,
The communication device is:
The information processing system is configured to determine the maximum response time based on the parameter, set the maximum response time, and output a command to the information processing apparatus.

  Furthermore, in one embodiment of the information processing system of the present invention, the communication module is configured to output a response message to the communication device after inputting a command from the communication device and before starting data processing in the data processing module. is there.

  Furthermore, in one embodiment of the information processing system of the present invention, the message data output from the communication module is a polling response to the communication device.

  Furthermore, in an embodiment of the information processing system of the present invention, the data processing executed by the data processing module is a data recording process with respect to a storage unit or a data reading process from the recording unit, and the communication module includes the data A configuration in which a parameter for determining a maximum response time not including a processing time of a data recording process or a data reading process from the recording unit to be executed in the processing module is stored in the message data and output to the communication device It is.

Furthermore, the third aspect of the present invention provides
An information processing method executed in an information processing apparatus,
The information processing apparatus includes:
A communication module that executes communication processing with an external communication device;
A data processing module for executing data processing by performing communication via the data transfer path with the communication module;
A parameter for determining a time that does not include a data processing time in the data processing module as a parameter for determining a maximum response time that is an allowable waiting time from a command output in the communication device to a response reception of the communication module in the communication module. Outputting the stored message data to the communication device;
The communication module, after inputting a command from the communication device, outputting a response message to the communication device before finishing the data processing in the data processing module;
There is an information processing method.

Furthermore, the fourth aspect of the present invention provides
A computer program for executing information processing in an information processing apparatus;
The information processing apparatus includes:
A communication module that executes communication processing with an external communication device;
A data processing module for executing data processing by performing communication via the data transfer path with the communication module;
A parameter for determining a time that does not include the data processing time in the data processing module as a parameter for determining a maximum response time that is an allowable waiting time from a command output in the communication device to reception of a response of the communication module in the communication module. Outputting the stored message data to the communication device;
Causing the communication module to output a response message to the communication device after the command input from the communication device and before the end of the data processing in the data processing module;
There is a computer program with

  The program of the present invention is, for example, a computer program that can be provided by a storage medium or a communication medium provided in a computer-readable format to a general-purpose computer system that can execute various program codes. By providing such a program in a computer-readable format, processing corresponding to the program is realized on the computer system.

  Other objects, features, and advantages of the present invention will become apparent from a more detailed description based on embodiments of the present invention described later and the accompanying drawings. In this specification, the system is a logical set configuration of a plurality of devices, and is not limited to one in which the devices of each configuration are in the same casing.

  According to the configuration of one embodiment of the present invention, a communication module that executes communication processing with a communication device such as a reader / writer, and a data processing module that executes communication via the data transfer path with the communication module. A communication module sets a parameter for determining a maximum response time, which is a maximum waiting time for a response to a command of a communication device, as a parameter for determining a time that does not include the data processing time in the data processing module. Notify the device. Furthermore, after a command is input from the communication device, a response message is output to the communication device before the start of data processing in the data processing module or before the end of processing. With this configuration, it is possible to set the maximum standby time short, and it is possible to quickly deal with errors when an error such as a packet loss occurs, thereby improving processing efficiency.

  Details of the information processing apparatus, information processing system, information processing method, and computer program of the present invention will be described below.

  In the configuration in which an information processing apparatus such as an IC card executes communication with a reader / writer to perform processing for a command such as a data write request or a data read request from the reader / writer, The present invention provides a configuration capable of efficiently completing processing according to a normal processing sequence even when packet loss or the like occurs.

  First, prior to the description of the configuration of the present invention, a specific example of data communication between a general IC card and a reader / writer, a data processing sequence, and the aforementioned maximum response time [Tmax] setting process will be described with reference to FIG. I will explain.

  For example, the reader / writer executes polling request processing by continuous or intermittent radio wave transmission, and detects the IC card by receiving a polling response from the IC card. Further, a command (processing request) such as a data write request or a data read request is output to the detected IC card. The IC card executes processing according to a command from the reader / writer. For example, a process of writing data received from the reader / writer into the memory in the IC card, or a process of reading data recorded in the memory of the IC card and outputting it to the reader / writer is executed.

  A general communication sequence between the reader / writer and the IC card will be described with reference to FIG. The reader / writer performs polling request processing by continuous or intermittent radio wave transmission. This is a polling request (Polling_Req) in step S11. When the IC card approaches the communicable area of the reader / writer, in step S12, the IC card returns a polling response (Polling_Res) to notify the reader / writer of the presence.

  The polling response includes, for example, a card ID (IDm) that is its own identifier and a maximum response time calculation parameter for calculating the maximum response time [Tmax]. The maximum response time [Tmax] and the maximum response time calculation parameter will be described in detail later.

  Subsequently, in step S13, the reader / writer issues a processing request including a command such as a data write request, and the IC card that receives the processing executes processing corresponding to the command in step S14. Next, in step S15, the success / failure information of the processing result is output to the reader / writer as a processing response.

A command (processing request) output by the reader / writer in step S13;
A packet configuration example of the processing response output from the IC card in step S15 is shown in FIG.

In FIG.
(A1) Command output by reader / writer = write request (Write_Req)
(A2) Response to a write request output from the IC card (Write_Res)
(B1) Command output by reader / writer = read request (Read_Req)
(B2) Response to the read request output from the IC card (Read_Res)

  (A1) The write request (Write_Req) is a command for writing output data from the reader / writer to the memory in the IC card. This command includes a request identifier, a communication ID (IDm) corresponding to an IC card ID, the number of services to be executed (NOS), a service code list (SLST) that is a list of service codes corresponding to execution services, and each service code The number of data blocks (NOB) used for processing corresponding to the above, a block list (BLST) indicating the memory address of each block, and write target data (DATA) that is data to be written are included.

  The IC card that has received the write request bucket (Write_Req) executes packet analysis, and writes write target data (DATA) in the instruction area of the IC card memory according to the packet analysis information. After this process is completed, a write response (Write_Res) shown in (a2) of FIG. 2 is output to the reader / writer. The write response (Write_Res) includes a response identifier, a communication ID (IDm), and a result code (SF) indicating success or failure of the processing result.

  The (b1) read request (Read_Req) is a command used when the reader / writer reads data recorded in the memory of the IC card. This command includes a request identifier, a communication ID (IDm) corresponding to an IC card ID, the number of services to be executed (NOS), a service code list (SLST) that is a list of service codes corresponding to execution services, and each service code A block list (BLST) indicating the number of data blocks (NOB) used for the processing corresponding to and the memory address of each block is included.

  The IC card that has received this read request bucket (Read_Req) executes packet analysis, and reads data from the instruction area of the IC card memory according to the packet analysis information. After the read process, a read response (Read_Res) shown in (b2) of FIG. 2 is output to the reader / writer. The read response (Read_Res) includes a response identifier, a communication ID (IDm), a result code (SF) indicating success / failure of the processing result, a number of blocks (NOB) corresponding to the read data, and read target data (DATA). It is.

  FIG. 3 shows a directory structure example of data recorded in the memory in the IC card. As shown in FIG. 3, a service code unit directory is set as a subdirectory with respect to an area code directory previously set for the IC card.

  Each service code directory stores one or more block data (fixed length data unit) set corresponding to an identifier assigned according to data access attributes called service codes.

  In the example shown in FIG. 3, three block data of block numbers 0 to 2 are stored for the service of the service code S1, and two block data of block numbers 0 to 1 are stored for the service of the service code S2. It is a stored example.

  When specifying certain data, it is specified in the form of a certain block number for a certain service code. The target data block to be read / written is specified by the service code list and the block list. The service code list is an enumeration of service codes, and these data are included in the write request (Write_Req) and the read request (Read_Req) which are the commands described above with reference to FIG. .

  FIG. 4 is a diagram illustrating a configuration example of a block list. The block list is defined as an enumeration of a plurality of block list elements. In each block list element, a Ver identifier (Ver) for identifying the version of the block list itself, an access mode (ACM) for specifying an access method, a service code list order (SLSTOR) for designating an enumeration order of service code lists, and a block It consists of a number (BNO).

  As described above with reference to FIG. 2, the write target data (DATA) requested to be written to the IC card in the write request (Write_Req) is equal to the number of block list elements in the write request (Write_Req) packet. It is enumerated at the end and stored.

  FIG. 5 is a flowchart showing a process flow on the IC card side when a write request process from the reader / writer to the IC card is performed.

In step S21, the write request (Write_Req) issued by the reader / writer is received.
Next, in step S22, the IC card extracts parameters of the received command and confirms the validity. If the validity is confirmed (Yes in S23), the process proceeds to step S24. If the validity is not confirmed (No in S23), the process proceeds to step S26, and an error response is transmitted to the reader / writer.

If the validity is confirmed (Yes in S23), the process proceeds to step S24, and the block data (DATA) is written to the memory address specified by the service code list and block list of the command parameter, and the write is performed in step S25. A response (Write_Res) (see (a2) in FIG. 2) is returned to the reader / writer.
In such a sequence, processing corresponding to the command from the reader / writer is performed.

  Next, parameters for calculating the maximum response time [Tmax] included in the polling response output from the IC card will be described. In step S12 described above with reference to FIG. 1, the IC card outputs a polling response to the reader / writer.

  The IC card stores and outputs the maximum response time [Tmax] calculation parameter stored in the memory of the IC card in the polling response. The maximum response time [Tmax] is the maximum allowable waiting time from when the command (processing request) is output from the reader / writer until the IC card returns a response.

  When the IC card receives a processing request from the reader / writer in step S13, the IC card performs processing according to the request in step S14, and returns in step S15 whether the processing result is acceptable or not.

  The maximum time for which the reader / writer waits for a processing response from the IC card after transmitting the processing request to the IC card in step S13 is the maximum response time [Tmax]. If no response is obtained within the maximum response time [Tmax], it is determined that the process has failed, and an error handling process, for example, a process of outputting a process request again, is performed.

For example, the maximum response time [Tmax] is
The processing request transmission time from the reader / writer (S13);
Processing time in the IC card (S14),
A value obtained by adding a predetermined margin time to the total time with the response transmission time (S15) from the IC card is set.

  Parameters for calculating the maximum response time [Tmax] are recorded in advance in a memory in the IC card. The IC card includes the parameter for calculating the maximum response time [Tmax] recorded in the memory of the IC card in the polling response (Polling_Res) and outputs it to the reader / writer. The reader / writer calculates the maximum response time [Tmax] according to a predetermined calculation formula based on the parameters included in the polling response from the IC card, and performs the processing using the calculated time as the maximum standby time.

  However, as described above, the parameters recorded in the memory in the IC card are basically determined in consideration of the access processing time for the memory in the IC card. That is, as shown in FIG. 6A, the parameters are set in consideration of the processing time of data writing processing and data reading processing with respect to the internal memory 13 in the IC card 12 that performs communication with the reader / writer 11.

  Therefore, for example, as shown in FIG. 6B, this parameter cannot be used when the IC card or a communication module equivalent to the IC card is provided in the information processing apparatus 30 such as a camera or a PC. Alternatively, it is necessary to newly set a parameter for calculating a long maximum response time considering the processing time in the information processing apparatus 30 by changing the parameter. However, if the maximum response time is set to be long, problems such as the start of error handling processing are delayed and processing efficiency is reduced when an error occurs due to packet loss or the like. This problem will be described later.

  The information processing apparatus 30 illustrated in FIG. 6B includes a communication module 31 having a function equivalent to an IC card that performs communication with the reader / writer 21 and an apparatus LSI 33. The communication module 31 and the device LSI 33 are connected via a data transfer path 32 such as an interface or a bus.

  The communication module 31 executes a polling response to the polling request from the reader / writer 21. The reader / writer 21 sets a maximum response time based on parameters included in the polling response, and executes a data write request or a data read request.

  For example, the reader / writer 21 issues a data write request to the communication module 31 of the information processing apparatus 30. The communication module 31 outputs the data received from the reader / writer 21 to the device LSI 33 via the data transfer path 32, and the device LDI 33 records the data in the device memory 34.

  When such a process is executed, it is inevitable that the processing time becomes longer than the process of storing data in the internal memory 13 in the IC card 12 as shown in FIG.

  As a result, in the processing sequence described above with reference to FIG. 1, the processing in step S14 is prolonged as shown in FIG. As a result, the processing response in step S15 is not in time for the maximum response time [Tmax] set by the reader / writer, and the reader / writer determines that the processing has failed and performs error handling processing, for example, processing for outputting a processing request again. And so on.

  As described above, when the reader / writer sets the maximum response time by applying the parameters included in the polling response of the IC card, processing within the maximum response time may not be possible depending on the processing configuration on the IC card side. is there. In this case, the reader / writer inevitably performs error determination, and executes unnecessary retransmission processing.

  If the parameter is changed to set a parameter for calculating a long maximum response time in consideration of the processing time in the information processing apparatus 30, it is possible to avoid erroneous error handling. However, as described above, if the maximum response time is set long, when an error occurs due to a packet loss or the like, problems such as a slow start of error handling processing and a reduction in processing efficiency occur. This problem will be described later.

Next, a setting example of a general maximum response time [Tmax] will be described.
In FIG.
(A) Polling request output from the reader / writer (Polling_Req)
(B) Polling response output from the IC card (Polling_Res)
Examples of these data structures will be shown. As shown in FIG. 8, the polling request includes a request identifier as request identification information, a system code that is system information, a request code that is request information, and a time slot value that specifies the number of slots in the time slot method. . The polling response includes a response identifier as response identification information, a communication ID as card identification information, an IC code including IC card version information, and a maximum response time parameter as maximum response time [Tmax] calculation information. included.

  In the example illustrated in FIG. 8, the maximum response time parameter includes six types of parameters [Da to Df]. This is six types of parameter information for calculating the maximum response time defined for each type of command output by the reader / writer. Specifically, for example, as shown in FIG. 9, the commands output by the reader / writer are classified into six types, and parameters [Da to Df] for calculating the maximum response time [Tmax] are defined according to each of the commands. Will be.

  Each of Da to Df is 1 byte (8 bits) data and has a data configuration as shown in FIG. FIG. 10 illustrates an 8-bit data configuration corresponding to [Da] of one command category, but other Db to Df have the same correspondence.

The maximum response time [Tmax] is calculated by the following calculation formula, for example.
Maximum response time Tmax (ms) = 0.302 × [(B + 1) × n + (A + 1)] × 4 ^E

Data defining the parameters A, B, and E included in the above maximum response time [Tmax] calculation formula is data included in the polling response as 8-bit data (b7 to b0) as shown in FIG.
The lower 3 bits (b2 to b0) are the values of A in the above formula,
The next 3 bits (b5 to b3) are the values of B in the above formula,
The upper 2 bits (b7 to b6) are the values of E in the above formula,
It corresponds to these.

  [N] included in the above equation is data corresponding to the number of blocks (for example, 1 block = 16 bytes) that need to be processed by a reader / writer command. For example, when the reader / writer makes a data write request, it is determined according to the write data length. In a typical process, for example, in the case of the issue command shown at the bottom of the table shown in FIG. 9, n = 0 is fixed.

  The reader / writer calculates the maximum response time [Tmax] according to the above equation using the maximum response time parameters A, B, and E included in the polling response and the parameter [n] determined according to the output command of the reader / writer. To do. The calculated maximum response time [Tmax] is set as a standby time after the command (processing request (step S13 shown in FIG. 1)) to the IC card is output.

If a processing response from the IC card cannot be received even after the maximum response time [Tmax] has elapsed, an error handling process, for example, a command retry (retransmission) process is performed. For example, there are the following factors as the cause of such an error.
(A) The IC card is not already in the communication range,
(B) In wireless communication, packet loss due to noise contamination,
(C) In the case of an IC card that generates electricity from an external magnetic field, the processing is interrupted due to power loss due to gain loss
For example, these causes can be considered.

  FIGS. 11 to 13 show a plurality of processing sequence examples when the reader / writer determines that a processing error has occurred. 11 to 13, the process after the reader / writer receives the polling response from the IC card and calculates the maximum response time [Tmax] using the parameters included in the polling response, that is, the processing request command The sequence after output is shown.

  FIG. 11 shows a case where the reader / writer outputs a processing request to the IC card in step S51, but the transmission packet does not reach the IC card and a packet loss occurs in step S52.

  In this case, the reader / writer cannot know the occurrence of the packet loss and waits for the maximum response time [Tmax] to elapse. In step S53, it is determined that a processing error has occurred when the maximum response time [Tmax] has elapsed, and in step S54, the processing request is retransmitted. Thereafter, in step S55, a processing response is output from the IC card.

  As described above, when an error due to packet loss occurs, the reader / writer waits for the maximum response time [Tmax] to elapse, and then proceeds to error handling processing. Therefore, the longer the maximum response time [Tmax] is set, the more wasteful waiting time is generated and the processing is delayed. Therefore, setting a long maximum response time [Tmax] is not preferable because it reduces processing efficiency.

  FIG. 12 is a sequence in the case where the request signal is correctly transmitted from the reader / writer to the IC card, but the power is cut off during the processing of the IC card. In step S61, the reader / writer outputs a processing request to the IC card, which is received by the IC card.

  Although the IC card has started processing according to the processing request, for example, received data writing processing, the power supply to the IC card is interrupted in step S62, and the processing cannot be completed. In many cases, an IC card operates by receiving power supply by electromagnetic waves from a reader / writer. In such a configuration, if the distance between the IC card and the reader / writer increases, the IC card cannot receive power from the reader / writer, and the processing by the power supply means may not be continued as in step S62.

  Also in this case, the reader / writer cannot know the processing status on the IC card side and waits for the maximum response time [Tmax] to elapse. Thereafter, in step S63, it is determined that a processing error has occurred when the maximum response time [Tmax] has elapsed, and in step S64, the processing request is retransmitted. Thereafter, in step S65, a processing response is output from the IC card.

  As described above, when an error occurs due to the power failure on the IC card side, the reader / writer waits for the maximum response time [Tmax] to elapse, and then proceeds to error handling processing. Therefore, the longer the maximum response time [Tmax] is set, the more wasteful waiting time is generated and the processing is delayed. Therefore, setting a long maximum response time [Tmax] is not preferable because it reduces processing efficiency.

  FIG. 13 is a sequence when the processing response from the IC card results in packet loss and the reader / writer cannot receive the packet. In step S71, the reader / writer outputs a processing request to the IC card, and the IC card receives it.

  After completing the processing according to the processing request, for example, the received data writing processing, the IC card outputs a processing response from the IC card in step S72. However, this response packet becomes a packet loss in step S73, and the reader / writer cannot receive it.

  Also in this case, the reader / writer cannot know the processing status on the IC card side and waits for the maximum response time [Tmax] to elapse. Thereafter, in step S74, it is determined that a processing error has occurred when the maximum response time [Tmax] has elapsed, and in step S75, the processing request is retransmitted. Thereafter, in step S76, a processing response is output from the IC card.

  As described above, when an error occurs in various situations, the reader / writer waits for the maximum response time [Tmax] to elapse, and then proceeds to error handling processing. Therefore, the longer the maximum response time [Tmax] is set, the more wasteful waiting time is generated and the processing is delayed.

  In the configuration of the present invention, such a wasteful waiting time is shortened to realize processing efficiency. An embodiment of the present invention will be described with reference to FIG. FIG. 14 is a diagram showing a configuration of an information processing system according to an embodiment of the present invention.

FIG. 14 illustrates a reader / writer 100 that is a communication device that performs wireless communication, and an information processing apparatus 200 that performs communication between the reader / writer 100.
The reader / writer 100 includes a control LSI 110, a drive 120 corresponding to a medium such as a hard disk, and an antenna 130.
The information processing apparatus 200 includes a communication module 210, an antenna 220, a data processing module 250, a data transfer path 230 that performs data transfer between the communication module 210 and the data processing module 250, and a power supply 260. The data processing module 250 includes a recording unit 251 as a memory.

  The information processing apparatus 200 is various information processing apparatuses such as electronic devices such as PCs, televisions, and cameras, portable terminals, and electronic toys. The communication module (communication processing LSI) 210 is a communication processing LSI having the same function as the IC card described above, and executes communication with the reader / writer 100 via the antenna 220. The data processing module (data processing LSI) 250 is a data processing LSI that executes the main functions of the apparatus, and performs data processing according to the functions of the apparatus.

  The communication module 210 and the data processing module 250 are connected by a data transfer path 230 so that data can be transferred between the two modules. For example, data received from the reader / writer 100 by the communication module 210 is output to the data processing module 250 via the data transfer path 230 and stored in the recording unit 251 in the data processing module 250.

  Alternatively, after the data acquired from the recording unit 251 in the data processing module 250 is transferred to the communication module 210 via the data transfer path 230, the data is output from the communication module 210 to the reader / writer 100 via the antenna 220. .

  The data transfer path 230 is set as a wired connection path, and is set as a data transfer path to which, for example, SPI (Serial Peripheral Interface) is applied. In the SPI, the data processing module (data processing LSI) 250 serves as a master IC, and the communication module (communication processing LSI) 210 serves as a slave IC. A communication module (communication processing LSI) 210 as a slave IC operates by a clock generated by a data processing module (data processing LSI) 250 as a master IC.

  The communication module (communication processing LSI) 210 incorporates a RAM area used as a communication buffer, and transmits / receives wireless commands and cuts out packet data. On the other hand, it does not have a data management function, and when it receives a data read / write request, it requests the data processing module (data processing LSI) 250 to perform data processing.

  Furthermore, the information processing apparatus 200 has a power supply 260, and power is supplied from the power supply 260 to the communication module 210 and the data processing module 250. Therefore, the communication module 210 has a configuration that does not require the supply of electric power from the reader / writer 100 using electromagnetic waves.

  Detailed configuration examples of the reader / writer 100 and the information processing apparatus 200 will be described with reference to FIGS. 15 and 16.

  First, a configuration example of the reader / writer 100 will be described with reference to FIG. The reader / writer 100 includes a control LSI 110, a drive 120, and an antenna 130. The control LSI 110 includes a control unit 111, a recording unit 112, an SPU (Signal Processing Unit) 113, a modulation unit 114, an oscillation circuit 115, and a demodulation unit 116.

  The control unit 111 generates a command such as a data write request or a read request for the information processing apparatus 200, a process of writing data received from the information processing apparatus 200 to the media 121 to 124 via the recording unit 112 or the drive 120, and the like. Execute the control.

  Output data such as a generation command of the control unit 111 is supplied to the SPU 113, encoded in the SPU 113, and the encoded data is supplied to the modulation unit 114. The modulation unit 114 generates a carrier wave based on a clock signal having a predetermined frequency supplied from the oscillation circuit 115. Based on the carrier wave, the modulation unit 114 modulates the data supplied from the SPU 113 by a predetermined method, supplies the modulated signal to the antenna 130, and outputs the signal to the outside via the antenna 130.

  More specifically, for example, the modulation unit 114 generates the ASK (Amplitude Shift Keying) modulation of the data supplied from the SPU 113 using the 13.56 MHz frequency clock signal supplied from the oscillation circuit 115 as a carrier wave. The modulated wave is output from the antenna 130 as an electromagnetic wave.

  In addition, the signal received from the antenna 130 is demodulated by the demodulation unit 116, and the demodulated signal is supplied to the SPU 113. For example, the demodulation unit 116 demodulates a modulated wave (ASK modulated wave) acquired via the antenna 130 and outputs a demodulated signal to the SPU 113.

  The drive 120 mounts and drives a medium such as the magnetic disk 121, the optical disk 122, the magneto-optical disk 123, or the semiconductor memory 124. Programs and data used by the control unit 111 are acquired from the media. Data is written to each medium from the control unit 111 via the drive 120.

  Next, a configuration example of the information processing apparatus 200 will be described with reference to FIG. As described above with reference to FIG. 14, the information processing apparatus 200 includes a communication module (communication processing LSI) 210, an antenna 220, a data processing module (data processing LSI) 250, a power supply 260, and a communication module. It has a data transfer path 230 that connects between the (communication processing LSI) 210 and the data processing module (data processing LSI) 250.

  The communication module (communication processing LSI) 210 includes a control unit 211, an SPU 212, a demodulation unit 213, a modulation unit 214, an oscillation circuit 215, and a buffer memory (RAM) 216.

  The data processing module (data processing LSI) 250 includes a recording unit 251 and a control unit 252 as memories.

  The antenna 220 receives a signal transmitted from the reader / writer 100 and supplies the received signal to the demodulation unit 213. Further, the antenna 220 transmits the signal supplied from the modulation unit 214 to the reader / writer 100 by wireless communication.

  The demodulator 213 demodulates the signal supplied from the antenna 220 and supplies the demodulated signal to the SPU 212. For example, the demodulation unit 213 performs envelope detection on the request signal that is an ASK modulated wave received via the antenna 220 and demodulates the request signal, and outputs the demodulated signal to the SPU 212.

  The SPU 212 decodes the signal supplied from the demodulator 213 by a predetermined method, and supplies the decoded data to the controller 211. This data is, for example, a command output from the reader / writer or write data corresponding to the command. The control unit 211 temporarily stores the demodulated data in the buffer memory 217 as necessary, and outputs the demodulated data to the data processing module (data processing LSI) 250 via the data transfer path 230.

  The control unit 252 of the data processing module (data processing LSI) 250 receives data (command or write data) from the communication module (communication processing LSI) 210 and executes processing according to the command. For example, a data writing process for the recording unit 251 is executed.

  The control unit 252 of the data processing module (data processing LSI) 250 notifies the control unit 211 of the communication module (communication processing LSI) 210 via the data transfer path 230 of the progress of processing according to the command. To do.

  When data is transmitted from the communication module (communication processing LSI) 210 to the reader / writer 100, the SPU 212 encodes the signal supplied from the control unit 211 using a predetermined encoding method, and modulates the encoded signal. Supplied to the unit 214. The oscillation circuit 215 generates a clock signal having the same frequency as the request signal received by the antenna 220, and supplies the generated clock signal to the modulation unit 214.

  The modulation unit 214 generates a carrier wave based on a clock signal having a predetermined frequency supplied from the oscillation circuit 215. The modulation unit 214 generates a signal by modulating the signal supplied from the SPU 212 by a predetermined method based on the carrier wave, supplies the modulated signal to the antenna 220, and the reader / writer 100 via the antenna 220. Send to.

  Note that the communication module 210 performs wireless communication processing with the reader / writer 100 via the antenna 220 and wired communication processing with the data processing module 250 via the data transfer path 230. These processes are executed by switching each communication process without performing them in parallel.

  In the information processing apparatus 200 illustrated in FIG. 14, a communication module 210 and a data processing module 250 are connected via a data transfer path 230, and data received from the reader / writer 100 by the communication module 210 is transferred from the communication module 210. After being transferred to the data processing module 250 via the path 230, the data processing module 250 executes a writing process on the recording unit 251 in the data processing module 250.

  When such data transfer is involved, processing time is required as described above with reference to FIG. 6, and processing within the maximum response time based on the parameters generated by the IC card described above is not possible. It may be possible. In the configuration shown in FIG. 14, the communication module 210 includes processing equivalent to an IC card, that is, the parameter for calculating the maximum response time (the parameter described with reference to FIGS. 8 to 10) in the polling response. Output to 100.

The parameter for calculating the maximum response time output from the communication module 210 to the reader / writer 100 is the parameter described above with reference to FIG. 10, for example, a parameter included in the following calculation formula.
Maximum response time Tmax (ms) = 0.302 × [(B + 1) × n + (A + 1)] × 4 ^E

Data defining parameters A, B, and E included in the above maximum response time [Tmax] calculation formula,
Lower 3 bits (b2 to b0) = value of A in the above formula,
Next 3 bits (b5 to b3) = value of B in the above formula,
Upper 2 bits (b7 to b6) = value of E in the above formula,
Each of these parameters is output as included in the polling response as 8-bit data (b7 to b0) as shown in FIG.

As explained earlier, the conventional typical maximum response time is
The processing request transmission time from the reader / writer,
Processing time in the IC card (communication module);
A value obtained by adding a predetermined margin time to the total time with the response transmission time from the IC card (communication module) is set and calculated.

  For example, as shown in FIG. 14, when the maximum response time is determined in consideration of the fact that data transfer is executed between different LSIs in the information processing apparatus 200, the maximum response time becomes a very long time. .

  An example of a processing sequence in which such a long maximum response time is set will be described with reference to FIG. FIG. 17 shows each device corresponding to the configuration shown in FIG. 14, that is, the reader / writer 100, the communication module 210, and the data processing module 250 from the left, and shows a communication sequence between these devices.

  Note that data communication between the reader / writer 100 and the communication module 210 is executed as wireless communication. Data communication between the communication module 210 and the data processing module 250 is executed as wired communication. These wireless communication and wired communication are not executed in parallel at the same time, and the other communication is executed after the end of one communication.

  FIG. 17 shows processing after the reader / writer 100 receives a polling response from the communication module 210 and calculates the maximum response time [Tmax] using parameters included in the polling response, that is, outputs a processing request command. Shows the sequence after.

  In this example, the maximum response time [Tmax] is set as a period in consideration of data communication processing between the communication module 210 and the data processing module 250, data recording processing of the data processing module 250, and the like. In other words, the time is considered in consideration of the processing of all the processing steps described below.

  First, in step S <b> 101, a data processing request, for example, a data write request (Write_Req) is output from the reader / writer 100 to the communication module 210. The communication module 210 writes the received packet at a prescribed address of the buffer memory (RAM) 216 in the communication module 210.

  In step S <b> 102, the communication module 210 transmits a data reception notification to the data processing module 250.

  Subsequently, in step S103, the data processing module 250 that has received the data reception notification functions as an SPI master IC, and sequentially reads data stored in the buffer memory (RAM) 216 of the communication module 210 using the SPI. .

  In step S104, the data processing module 250 specifies the address of the recording unit 251 in the data processing module 250 as a writing destination according to the read data from the buffer memory (RAM) 216 of the communication module 210, and performs the data writing process. Do.

  Further, in step S105, the data processing module 250 writes a status flag indicating the success or failure of the result of the data writing process to the buffer memory (RAM) 216 of the communication module 210 via the SPI.

  The data processing module 250 finishes writing all data to the recording unit 251, and after the completion of writing the status flag to the buffer memory (RAM) 216 of the communication module 210, the data processing module 250 sends a data processing completion notification to the communication module 210 in step S106. Output to.

  The communication module 210 confirms that the data processing completion notification has been received from the data processing module 250. After this confirmation, the communication module 210 includes the status flag written in the buffer memory (RAM) 216 in the parameter of the processing response (Write_Res) and returns it to the reader / writer 100 in step S107.

  The reader / writer 100 can recognize that the communication process has been normally performed by receiving the process response (Write_Res).

  In such a processing configuration, the processing time in the information processing apparatus 200 depends on the SPI communication speed and the implementation of the data processing module (data processing LSI) 250 that is a master IC. Therefore, the communication module 210 cannot set the maximum response time of each command to a constant value.

  Further, depending on the processing capability and processing contents of the data processing module (data processing LSI) 250, it is necessary to assume a case where a waiting time of a very long time is required as compared with the conventional IC card.

Specifically, the processing time of each of the following processes, that is,
(A) Processing request transfer time from reader / writer to communication module (S101),
(B) Data reception notification processing time from the communication module to the data processing module (S102),
(C) Data transfer processing time from the communication module to the data processing module (S103),
(D) Data processing time in the data processing module (S104),
(E) Status flag write processing time for the buffer in the communication module by the data processing module (S105),
(F) Processing completion notification time from the data processing module to the communication module (S106),
(G) Processing response transfer processing time from the communication module to the reader / writer (S107),
The maximum response time is set by adding a predetermined margin to the total of all the processing times (a) to (g).

  When processing with such a long maximum response time is performed, as a result, when a processing error such as a packet loss as described above with reference to FIGS. In spite of the absence, the reader / writer waits for the set maximum response time to elapse.

Such processing significantly reduces processing efficiency. Therefore, in the present invention, the maximum response time is considered without considering the processing times (a) to (g) as described above.
(1) Processing request transfer time from the reader / writer to the communication module,
(2) Data reception notification processing time from the communication module to the data processing module (3) Processing response transmission time from the communication module to the reader / writer,
A maximum response time is set by adding a predetermined margin to the processing times of (1) to (3).

  That is, in the configuration of the present invention, the maximum response time is set without including data processing time such as recording of received data in the data processing module. The communication module transmits a parameter for calculating the maximum response time based on such settings to the reader / writer as a polling response.

  The communication module 210 includes, in the polling response (see FIG. 8), a parameter for calculating a time obtained by adding a predetermined margin to the processing times (1) to (3) as a maximum response time, and transmits the parameter to the reader / writer 100. Then, the reader / writer 100 calculates the maximum response time based on this parameter using the calculation formula described above.

That is, the reader / writer 100
Maximum response time Tmax (ms) = 0.302 × [(B + 1) × n + (A + 1)] × 4 ^E
The maximum response time is set according to the above formula.
The communication module 210 includes parameters A, B, and E for calculating a time obtained by adding a predetermined margin to the processing times (1) to (3) as the maximum response time in the polling response (see FIG. 8). The data is transmitted to the reader / writer 100.

  The maximum response time [Tmax] set in this processing example is set to an extremely short time compared to the maximum response time [Tmax] set in the sequence described with reference to FIG.

  A processing sequence when the maximum response time [Tmax] is set according to the present invention will be described with reference to FIG. 18 also shows each device corresponding to the configuration shown in FIG. 14, that is, the reader / writer 100, the communication module 210, and the data processing module 250 from the left, and shows the communication sequence between these devices, as in FIG. Yes.

  Note that data communication between the reader / writer 100 and the communication module 210 is executed as wireless communication. Data communication between the communication module 210 and the data processing module 250 is executed as wired communication. These wireless communication and wired communication are not executed in parallel at the same time, and the other communication is executed after the end of one communication.

  FIG. 18 shows a process after the reader / writer 100 receives a polling response from the communication module 210 and calculates a maximum response time [Tmax] using parameters included in the polling response, that is, outputs a process request command. Shows the sequence after.

In the example shown in FIG. 18, the maximum response time [Tmax] is
(A) Processing request transfer time from reader / writer to communication module,
(B) Data reception notification processing time from the communication module to the data processing module (C) Processing response transmission time from the communication module to the reader / writer,
These are set as a time obtained by adding a predetermined margin to the processing times of (A) to (C), and are set to a very short time compared to the maximum response time [Tmax] set in the sequence diagram of FIG.

  First, in step S <b> 201, a data processing request, for example, a data write request (Write_Req) is output from the reader / writer 100 to the communication module 210. The communication module 210 writes the received packet at a prescribed address of the buffer memory (RAM) 216 in the communication module 210.

In step S <b> 202, the communication module 210 transmits a data reception notification to the data processing module 250.
Next, in step S203, a processing response is transmitted to the reader / writer 100.
The reader / writer 100 confirms that the reception of this processing response has been received within the maximum response time [Tmax], and confirms that at least the data transmission has been executed reliably.

  If no processing response is received within the maximum response time [Tmax], the process proceeds to error handling processing. That is, for example, processing request retransmission processing is started.

  In this processing example, since the maximum response time [Tmax] is set to be extremely shorter than the maximum response time [Tmax] set in the sequence diagram of FIG. 17, the transition to the error handling process can be started quickly. It becomes possible.

  Therefore, when a processing error such as packet loss as described above with reference to FIGS. 11 to 13 occurs, the reader / writer can start error handling processing quickly, and processing efficiency is improved. become.

  The processing after step S204 will be described. In step S204, the data processing module 250 that has received the data reception notification functions as an SPI master IC, and sequentially reads data stored in the buffer memory (RAM) 216 of the communication module 210 using the SPI.

  In step S205, the data processing module 250 specifies the address of the recording unit 251 in the data processing module 250 as the writing destination according to the read data from the buffer memory (RAM) 216 of the communication module 210, and performs the data writing process. Do.

  Further, in step S206, the data processing module 250 writes a status flag indicating the success or failure of the result of the data writing process to the buffer memory (RAM) 216 of the communication module 210 via the SPI.

  The data processing module 250 finishes writing all data to the recording unit 251, and after the completion of writing the status flag to the buffer memory (RAM) 216 of the communication module 210, the data processing module 250 sends a data processing completion notification to the communication module 210 in step S207. Output to.

  It is confirmed that the data processing completion notification has been received from the data processing module 250. After this confirmation, the communication module 210 cancels the communication setting with the data processing module 250 and switches to a setting that allows wireless communication. Thereafter, after confirming that the processing result request from the reader / writer 100 has been received in step S208, the communication module 210 reads the status flag written in the buffer memory (RAM) 216 as a processing result response in step S209. Reply to writer 100.

  The reader / writer 100 can confirm that the processing has been normally completed by receiving this processing result response.

  In addition, when executing the reading process of the data recorded in the recording unit 251 of the data processing module 250, the read data from the recording unit 251 of the data processing module 250 is transferred to the buffer memory (RAM) of the communication module 210 in step S206. Write to 216.

  Thereafter, after confirming that the processing result request from the reader / writer 100 has been received in step S208, the communication module 210 returns the data written in the buffer memory (RAM) 216 to the reader / writer 100 in step S209. .

  Thus, in the processing sequence according to the present invention, the maximum response time is set without including the processing execution time in the information processing apparatus that performs data writing and data reading by a command from the reader / writer.

  By setting such a maximum response time, when a substantial error such as packet loss occurs, it is possible to quickly shift to error handling processing.

  Note that the information processing apparatus of the present invention has a configuration in which both the communication module 210 and the data processing module 250 operate by receiving power supply from the power supply 260 as shown in FIG. The conventional IC card is not configured to operate with power supplied from a reader / writer. Therefore, after receiving a command or data from the reader / writer, it is possible to operate even if it is separated from the reader / writer, and subsequent data processing can be executed.

  In the processing example described with reference to FIG. 18 described above, the IC card is configured to provide the reader / writer with parameters for determining the maximum response time in the polling response. In addition to such a configuration, the IC card may be configured not to provide a parameter for determining the maximum response time to the reader / writer in the polling response. In the case of such a configuration, the reader / writer can perform processing such as using a preset maximum response time, for example.

  The present invention has been described in detail above with reference to specific embodiments. However, it is obvious that those skilled in the art can make modifications and substitutions of the embodiments without departing from the gist of the present invention. In other words, the present invention has been disclosed in the form of exemplification, and should not be interpreted in a limited manner. In order to determine the gist of the present invention, the claims should be taken into consideration.

  The series of processing described in the specification can be executed by hardware, software, or a combined configuration of both. When executing processing by software, the program recording the processing sequence is installed in a memory in a computer incorporated in dedicated hardware and executed, or the program is executed on a general-purpose computer capable of executing various processing. It can be installed and run. For example, the program can be recorded in advance on a recording medium. In addition to being installed on a computer from a recording medium, the program can be received via a network such as a LAN (Local Area Network) or the Internet and can be installed on a recording medium such as a built-in hard disk.

  Note that the various processes described in the specification are not only executed in time series according to the description, but may be executed in parallel or individually according to the processing capability of the apparatus that executes the processes or as necessary. Further, in this specification, the system is a logical set configuration of a plurality of devices, and the devices of each configuration are not limited to being in the same casing.

  As described above, according to the configuration of the embodiment of the present invention, the communication module that executes communication processing with a communication device such as a reader / writer, and the communication module that performs communication via the data transfer path and data In an information processing apparatus having a data processing module for executing processing, a communication module determines a time for not including a data processing time in the data processing module as a parameter for determining a maximum response time that is a maximum waiting time for a response to a command of a communication device Set as a parameter for use and notify the communication device. Furthermore, after a command is input from the communication device, a response message is output to the communication device before the start of data processing in the data processing module or before the end of processing. With this configuration, it is possible to set the maximum standby time short, and it is possible to quickly deal with errors when an error such as a packet loss occurs, thereby improving processing efficiency.

It is a figure explaining the general communication sequence between a reader / writer and an IC card. It is a figure explaining the packet structural example of the command (processing request) which a reader / writer outputs, and the processing response which an IC card outputs. It is a figure which shows the example of a directory structure of the data recorded on the memory in an IC card. It is a figure which shows the structural example of a block list. It is a figure which shows the flowchart explaining the flow of a process by the side of an IC card when the write request process with respect to an IC card is performed from the reader / writer. It is a figure explaining the structural example of the information processing apparatus provided with the IC card and communication module which communicate with a reader / writer. It is a figure explaining the example of a sequence when the processing time in the information processing apparatus provided with the communication module which communicates with a reader / writer becomes long. It is a figure which shows the example of a data structure of the polling response (Polling_Res) which an IC card outputs. It is a figure explaining the structural example of the parameter for the maximum response time calculation set according to the command which a reader / writer outputs. It is a figure explaining the data structural example of the maximum response time calculation parameter contained in the polling response (Polling_Res) which an IC card outputs. It is a figure explaining a processing sequence when a reader / writer outputs a processing request to an IC card, but a transmission packet becomes a packet loss without reaching the IC card. FIG. 5 is a diagram for explaining a processing sequence when a request signal is correctly transmitted from a reader / writer to an IC card, but a power interruption occurs during processing of the IC card. It is a figure explaining the sequence when the processing response from an IC card becomes a packet loss and the reader / writer cannot receive it. It is a figure which shows the structure of the information processing system which concerns on one Example of this invention. It is a figure explaining the detailed structural example of the reader / writer which comprises the information processing system which concerns on one Example of this invention. It is a figure explaining the detailed structural example of the information processing apparatus which comprises the information processing system which concerns on one Example of this invention. It is a figure explaining the processing sequence at the time of setting the maximum response time which considered the data processing time in an information processing apparatus in the information processing system which concerns on one Example of this invention. It is a figure explaining the processing sequence at the time of setting the maximum response time without including the data processing time in an information processing apparatus in the information processing system which concerns on one Example of this invention.

Explanation of symbols

11 Reader / Writer 12 IC Card 13 Internal Memory 21 Reader / Writer 30 Information Processing Device 31 Communication Processing LSI
32 Data transfer path 33 Device LSI
34 Device Memory 100 Reader / Writer 110 Control LSI
111 Control Unit 112 Recording Unit 113 SPU
114 Modulator 115 Oscillator circuit 116 Demodulator 121 Magnetic disk 122 Optical disk 123 Magneto-optical disk 124 Semiconductor memory 130 Antenna 200 Information processing device 210 Communication module 211 Controller 212 SPU
213 Demodulator 214 Modulator 215 Oscillator 216 Buffer memory 220 Antenna 230 Data transfer path 250 Data processing module 251 Recording unit 252 Control unit 260 Power supply

Claims (16)

A communication module that executes communication processing with an external communication device;
A data processing module for executing data processing by performing communication via the data transfer path with the communication module;
The communication module includes:
Message data storing a time determination parameter that does not include the data processing time in the data processing module as a parameter for determining the maximum response time that is an allowable waiting time from the command output in the communication device to the reception of the response of the communication module. Outputting to the communication device;
After a command input from the communication device, a response message is output to the communication device before completion of data processing in the data processing module ,
An information processing apparatus configured to output a processing result of the data processing module to the communication device as a response to a processing result request received from the communication device after outputting a response message within the maximum response time to the communication device . The information processing apparatus further includes:
A power supply for supplying power to the communication module and the data processing module;
The information processing apparatus according to claim 1, wherein the communication module and the data processing module are configured to operate by supplying power from the power source. The communication module includes:
The information processing apparatus according to claim 1, wherein a response message is output to the communication device after a command is input from the communication device and before data processing in the data processing module is started.   The information processing apparatus according to claim 1, wherein the message data output from the communication module is a polling response to the communication device. The data processing executed by the data processing module is data recording processing for the storage unit or data reading processing from the recording unit,
The communication module stores, in the message data, a parameter for determining a maximum response time that does not include a processing time of a data recording process or a data reading process from the recording unit to be executed in the data processing module. The information processing apparatus according to claim 1, wherein the information processing apparatus is configured to output to a device. The communication module receives data from the communication device after outputting the data storing the parameters to the communication device;
The information processing apparatus according to claim 1, wherein the data processing module is configured to execute data processing according to the command. The communication module includes:
After receiving the data processing completion notification from the data processing module, the processing result request is received from the communication device, and the processing result input from the data processing module to the buffer of the communication module as a response to the processing result request The information processing apparatus according to claim 6, wherein the information processing apparatus outputs the information to the communication device. The communication module is
8. The information processing according to claim 7, wherein data output to the communication device as a response to the processing result request from the communication device is a processing result flag input from the data processing module to a buffer of the communication module. apparatus. The communication module is
As a response to the processing result request from the communication device, the data output to the communication device is read data from the recording unit on the data processing module input from the data processing module to the buffer of the communication module. The information processing apparatus according to claim 7. The communication device is a reader / writer, and the communication module outputs data storing the parameters to the reader / writer as a polling response in response to a polling request from the reader / writer, and further receives a command from the reader / writer. Receive
The information processing apparatus according to claim 1, wherein the data processing module is configured to execute data processing according to the command. A communication device for performing wireless communication and an information processing apparatus;
The information processing apparatus includes:
A communication module that executes communication processing with an external communication device;
A data processing module for executing data processing by performing communication via the data transfer path with the communication module;
The communication module includes:
Message data storing a time determination parameter that does not include the data processing time in the data processing module as a parameter for determining the maximum response time that is an allowable waiting time from the command output in the communication device to the reception of the response of the communication module. Outputting to the communication device;
After a command input from the communication device, a response message is output to the communication device before completion of data processing in the data processing module ,
After outputting a response message within the maximum response time for the communication device, the processing result of the data processing module is output to the communication device as a response to the processing result request received from the communication device .
The communication device is:
An information processing system configured to determine the maximum response time based on the parameter, set the maximum response time, and output a command to the information processing apparatus. The communication module includes:
The information processing system according to claim 11, wherein a response message is output to the communication device after a command is input from the communication device and before data processing in the data processing module is started.   The information processing system according to claim 11, wherein the message data output by the communication module is a polling response to the communication device. The data processing executed by the data processing module is data recording processing for the storage unit or data reading processing from the recording unit,
The communication module stores, in the message data, a parameter for determining a maximum response time that does not include a processing time of a data recording process or a data reading process from the recording unit to be executed in the data processing module. The information processing system according to claim 11, wherein the information processing system is configured to output to a device. An information processing method executed in an information processing apparatus,
The information processing apparatus includes:
A communication module that executes communication processing with an external communication device;
A data processing module for executing data processing by performing communication via the data transfer path with the communication module;
A parameter for determining a time that does not include a data processing time in the data processing module as a parameter for determining a maximum response time that is an allowable waiting time from a command output in the communication device to a response reception of the communication module in the communication module. Outputting the stored message data to the communication device;
The communication module, after inputting a command from the communication device, outputting a response message to the communication device before finishing the data processing in the data processing module;
Outputting a processing result of the data processing module to the communication device as a response to a processing result request received from the communication device after outputting a response message within the maximum response time to the communication device;
An information processing method comprising: A computer program for executing information processing in an information processing apparatus;
The information processing apparatus includes:
A communication module that executes communication processing with an external communication device;
A data processing module for executing data processing by performing communication via the data transfer path with the communication module;
A parameter for determining a time that does not include the data processing time in the data processing module as a parameter for determining a maximum response time that is an allowable waiting time from a command output in the communication device to reception of a response of the communication module in the communication module. Outputting the stored message data to the communication device;
Causing the communication module to output a response message to the communication device after the command input from the communication device and before the end of the data processing in the data processing module;
Causing the communication module to output a processing result of the data processing module as a response to a processing result request received from the communication device after outputting a response message within the maximum response time to the communication device;
A computer program.

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