JP7192240B2 - MOBILE TERMINAL DEVICE, MOBILE TERMINAL CONTROL PROGRAM, AND MOBILE TERMINAL CONTROL METHOD - Google Patents

Description

The present invention relates to a mobile terminal device, a mobile terminal device control program, and a mobile terminal device control method.

Conventionally, when sending and receiving data between a reader/writer and a contactless IC card, if the reader/writer does not receive a response from the contactless IC card within FWT (Frame Waiting Time) from the time of command transmission, It is determined that the contactless IC card does not respond.
Also, the contactless IC card determines whether the processing specified by the command can be completed within the FWT, and if it determines that it cannot be completed, it transmits S (WTX) to the reader/writer and extends the FWT to the reader/writer. (For example, see Non-Patent Documents 1, 2, and 3.). As a result, it is possible to prevent the non-contact IC card from being determined to be non-responsive during time-consuming command processing.

By the way, it is conceivable to use a mobile terminal device capable of short-distance wireless communication instead of the reader/writer, and transmit and receive data between the mobile terminal device and the non-contact IC card. In this case, in addition to the determination of the FWT described above, the mobile terminal device also determines whether or not a response has been transmitted from the non-contact IC card within the time-out period from when the command was transmitted. If it is determined that no response has been sent from the non-contact IC card within the timeout time, it is determined that the non-contact IC card has not responded. Here, the timeout period may generally be set to a short period of time assuming applications such as confirmation of the balance of an electronic money card, etc., in which processing is completed instantaneously. Therefore, for example, when a time-consuming command such as a command to write card information to a contactless IC card is processed and the transmission of a response from the contactless IC card is delayed, the contactless IC card does not respond. could have been misjudged.

Nippon Telegraph and Telephone Corporation, "Technical Basic Course Non-Contact IC Card Technology", [online], [searched March 24, 2018], Internet (URL: http://www.ntt.co.jp/journal/ 0801/files/jn200801071.pdf) International Organization for Standardization/International Electrotechnical Commission, ISO/IEC 14443-3 "Identification cards - Contactless integrated circuit(s) cards - Proximity cards -Part 3: Initialization and anticollision" Japanese Industrial Standards, JIS X6322-3 "Identification card-Non-contact (without external terminals) IC card-Proximity type-Part 3: Initialization and anti-collision"

The present invention focuses on the above points and provides a mobile terminal device, a control program for the mobile terminal device, and a control method for the mobile terminal device that can more appropriately determine whether or not the contactless IC medium is not responding. intended to

One aspect of the present invention includes (a) a command transmission unit that transmits a command to a non-contact IC medium via short-range wireless communication; and (c) a non-contact IC medium judging that the non-contact IC medium has not responded if no response to the command is received within the timeout time from the command transmission time. and (d) information associated with each of a plurality of predetermined commands and indicating a time longer than the expected processing time required when the corresponding command is processed by the non-contact IC medium. as information indicating candidates for the timeout period; and a timeout time setting unit that reads information indicating candidates associated with a command to be transmitted from the mobile terminal device and sets a timeout time based on the read information.

Another aspect of the present invention includes (a) a command transmission unit that transmits a command to a non-contact IC medium via short-range wireless communication; and (c) determining that the non-contact IC medium has not responded if a response to the command is not received within the time-out period from the time the command was sent. and (d) information indicating a time longer than the longest processing time of the command that is expected to take the longest processing time when processed by a non-contact IC medium, as information indicating a candidate for the timeout time. (e) after the communication path between the mobile terminal device and the non-contact IC medium is set, the information indicating the candidate is read from the storage device immediately before the first command is sent, and the read information The gist of the invention is that the mobile terminal device includes a timeout time setting unit that sets a timeout time based on the above.

Another aspect of the present invention includes (a) a processor of a mobile terminal device capable of short-range wireless communication, (b) a transmission function for sending a command to a non-contact IC medium via short-range wireless communication, (c) ) Receiving function to receive the response to the transmitted command from the non-contact IC medium via short-range wireless communication; , no-response judgment function for judging that the non-contact IC medium is non-response, and (e) a pre-programmed function immediately before each command transmission after the communication path between the mobile terminal device and the non-contact IC medium is set. Information indicating a time longer than the processing time expected to be required when the corresponding command is processed by a non-contact IC medium in association with each of the plurality of predetermined commands, and information indicating candidates for the timeout time. A control program for a mobile terminal device that realizes a timeout time setting function that reads information indicating candidates associated with a command to be transmitted from a storage device stored as a command and sets a timeout time based on the read information. The gist is that

Another aspect of the present invention includes (a) a processor of a mobile terminal device capable of short-range wireless communication, (b) a transmission function for sending a command to a non-contact IC medium via short-range wireless communication, (c) ) Receiving function to receive the response to the transmitted command from the non-contact IC medium via short-range wireless communication; , a no-response judgment function for judging that the non-contact IC medium is non-response; A candidate is selected from a storage device that stores information indicating a time longer than the longest processing time of a command that is expected to take the longest processing time when processed by a contact IC medium as information indicating a timeout time candidate. The gist of the present invention is a control program for a mobile terminal device that reads information indicating a timeout and implements a timeout time setting function for setting a timeout time based on the read information.

Another aspect of the present invention includes steps of (a) transmitting a command to a non-contact IC medium via short-range wireless communication; (b) transmitting a response to the transmitted command via short-range wireless communication; a step of receiving from the non-contact IC medium; d) After the communication path between the mobile terminal device and the non-contact IC medium is set, immediately before each command transmission, each of a plurality of predetermined commands is associated with each command, and the corresponding command is sent to the non-contact IC. Candidates associated with a command to be transmitted from a storage device that stores information indicating a processing time longer than a processing time expected to be required when the medium is processed as information indicating candidates for the timeout time. and setting a timeout period based on the read information.

Another aspect of the present invention includes steps of (a) transmitting a command to a non-contact IC medium via short-range wireless communication; (b) transmitting a response to the transmitted command via short-range wireless communication; a step of receiving from the non-contact IC medium; d) Immediately before sending the first command after the communication path between the mobile terminal device and the non-contact IC medium is set, the command that is expected to take the longest processing time if processed by the non-contact IC medium and reading information indicating a candidate for a timeout period from a storage device storing information indicating a period longer than the long processing period as information indicating a candidate for the timeout period, and setting the timeout period based on the read information. The gist of the present invention is a control method for a mobile terminal device.

According to the present invention, for example, when a command that takes a long time to process is transmitted, the time-out period can be lengthened. It can be prevented from being erroneously determined to be a response. Therefore, it is possible to provide a mobile terminal device, a control program for a mobile terminal device, and a control method for a mobile terminal device, which can more appropriately determine whether the contactless IC medium is non-responsive.

1 is a conceptual diagram showing an IC card issuing system according to an embodiment of the present invention; FIG. FIG. 10 is an explanatory diagram for explaining a timeout period; FIG. FIG. 10 is a diagram showing a table that associates commands with weighting coefficients; 4 is a flowchart showing IC card issuing processing; 4 is a sequence diagram showing the operation of the IC card issuing system; FIG. It is a figure which shows the table which concerns on a modification. FIG. 11 is a sequence diagram showing the operation of the IC card issuing system according to the modified example; It is a flow chart which shows IC card issue processing concerning a modification. It is a figure which shows the table which concerns on a modification.

Hereinafter, a mobile terminal device, a mobile terminal device control program, and a mobile terminal device control method according to embodiments of the present invention will be described with reference to the drawings. As will be described later, the mobile terminal device according to the embodiment of the present invention acquires card information from an SP (Service Provider) server, and stores the acquired card information in a non-contact IC card (broadly speaking, "non-contact IC medium"). ) to configure an IC card issuing system. The embodiments shown below are examples of methods and apparatuses for embodying the technical idea of the present invention. It is not specific to the following. Various modifications can be made to the technical idea of the present invention within the technical scope defined by the claims.

(composition)
As shown in FIG. 1, the IC card issuing system 1 includes a mobile terminal device 2, a contactless IC card 3, and an SP server 4. The mobile terminal device 2 and the SP server 4 establish a communication path through which information can be transmitted and received between them using a mobile phone communication network, the Internet, or the like.

(Mobile terminal device)
The mobile terminal device 2 is owned by a card issuer who issues the contactless IC card 3 . As the mobile terminal device 2, for example, a smart phone capable of executing an application, mobile communication, short-range wireless communication based on the NFC (Near Field Communication) standard, and the like can be adopted. The mobile terminal device 2 includes hardware resources such as an NFC antenna 5, an NFC controller 6, a storage device 7 and a processor 8.
The NFC antenna 5 generates a current from the electromagnetic field output by the non-contact IC card 3 and outputs the generated current, that is, the current modulated with data or the like to the NFC controller 6 . Also, the NFC antenna 5 generates an electromagnetic field from the current output by the NFC controller 6, that is, the current modulated with data and the like, and transmits data and the like to the non-contact IC card 3 with the generated electromagnetic field.

The NFC controller 6 transmits to the processor 8 data and the like modulated by the current output by the NFC antenna 5 . The NFC controller 6 also outputs to the NFC antenna 5 a current obtained by modulating the data output by the processor 8 . As a result, commands, responses, and the like can be transmitted and received to and from the non-contact IC card 3 via short-range wireless communication using electromagnetic fields.
Further, the NFC controller 6 determines whether the FWT extension request is modulated in the current output by the NFC antenna 5, and if it determines that the FWT extension request is modulated, the current obtained by modulating the FWT extension response. Output to the NFC antenna 5 . As a result, the FWT extension response can be transmitted to the non-contact IC card 3 via short-range wireless communication using an electromagnetic field.

The storage device 7 stores data written by the processor 8 and the like. Further, the storage device 7 stores a prescribed value (default value) of a predetermined timeout period Tout. The timeout time Tout, as shown in FIG. 2, is the maximum time to wait for a response to a command after transmission of the command. As a result, if no response is received from the non-contact IC card 3 within the timeout time Tout from when the command was sent, it can be determined that the non-contact IC card 3 has not responded. For example, 300 ms can be used as the specified value of the timeout time Tout.

Further, as shown in FIG. 3, the storage device 7 stores a table 9 in which a plurality of predetermined commands and information indicating candidates for the timeout period Tout associated with each of the plurality of commands are registered. ing. Information indicating a candidate for the timeout time Tout may be information indicating a time longer than the processing time expected to be required when the corresponding command is processed by the non-contact IC card 3 . For example, as shown in the following formula (1), a weighting factor (0.5, 1, 2, 3, etc.) that can calculate the timeout time Tout by multiplying the specified value (300 ms) of the timeout time Tout can be adopted.
Timeout time Tout=Specified value of timeout time Tout×Weighting factor (1)

In Table 9 of FIG. 3, the weighting coefficients of READ commands such as "READ BINARY", "READ RECORD(S)", and "GET CHALLENGE" are set to "1". Also, the weighting factor of the authentication system commands such as "INTERNAL AUTHENTICATE" and "EXTERNAL AUTHENTICATE" is set to "2". Also, the weighting coefficient of WRITE commands such as "WRITE BINARY", "UPDATE BINARY", "WRITE RECORD", "APPEND RECORD", and "UPDATE RECORD" is set to "3". Also, the weighting coefficient of SELECT commands such as "SELECT FILE" and "VERIFY" is set to "0.5". That is, as a command expected to take the longest processing time when processed by the contactless IC card 3, the WRITE command is associated with the maximum weighting coefficient "3". Also, as a command for which the shortest processing time is expected when processed by the non-contact IC card 3, the SELECT command is associated with the minimum weighting coefficient "0.5" smaller than "1".

Further, the storage device 7 stores a control program for the mobile terminal device 2 executed by the processor 8 . Further, the storage device 7 stores various data necessary for executing the control program.
When the card issuer's activation operation of the UI application for card issuance to the mobile terminal device 2 is detected, the processor 8 reads out the control program for the UI application for card issuance from the storage device 7 and executes it to obtain the card information. Acquisition unit 10, request transmission unit 11, FWT value acquisition unit 12, timeout time setting unit 13, command transmission unit 14, response reception unit 15, non-response determination unit 16, command determination unit 17, etc. are implemented. The card information acquisition unit 10, the request transmission unit 11, the FWT value acquisition unit 12, the timeout time setting unit 13, the command transmission unit 14, the response reception unit 15, the no-response determination unit 16, the command determination unit 17, etc. perform IC card issuance processing. to control hardware resources such as the NFC antenna 5 , the NFC controller 6 and the storage device 7 . The details of the IC card issuing process will be described later.

(contactless IC card)
The contactless IC card 3 is an IC card to be issued. For example, an IC card capable of short-range wireless communication using an electromagnetic field can be used. The contactless IC card 3 has an NFC antenna 18 , an NFC controller 19 , a storage device 20 and a processor 21 .
The NFC antenna 18 generates current from the electromagnetic field output by the mobile terminal device 2 and outputs the generated current, that is, current modulated with data or the like to the NFC controller 19 . Further, the NFC antenna 18 generates an electromagnetic field from the current output by the NFC controller 19, that is, the current modulated with data and the like, and transmits data and the like to the mobile terminal device 2 with the generated electromagnetic field.

The NFC controller 19 outputs to the processor 21 data or the like modulated by the current output by the NFC antenna 18 . Also, the NFC controller 19 outputs to the NFC antenna 18 a current obtained by modulating data output from the processor 21 . As a result, it is possible to transmit and receive commands, responses, and the like to and from the mobile terminal device 2 via short-range wireless communication.
The storage device 20 stores data written by the processor 21 and the like.
The processor 21 physically includes hardware resources such as an FWT value transmission unit 22 and a command processing unit 23 . In FIG. 1, the FWT value transmission unit 22, the command processing unit 23, and the like formally express hardware resources focused on logical functions. The representation in FIG. 1 does not necessarily imply functional blocks that exist as physical areas on a semiconductor chip.

When a request is transmitted from the mobile terminal device 2 , the FWT value transmission unit 22 receives the transmitted request and transmits a predetermined FWT value to the mobile terminal device 2 .
When a command is transmitted from the mobile terminal device 2, the command processing unit 23 receives the transmitted command and determines whether the command processing indicated by the received command can be completed within the specified FWT value. Then, when it is determined that the FWT value can be completed within the specified value, the command processing is executed. On the other hand, if it is determined that the FWT value cannot be completed within the specified value, an FWT extension request is transmitted to the mobile terminal device 2, and an FWT extension response is returned from the mobile terminal device 2 in response to the transmitted FWT extension request. and execute command processing. When command processing is completed, command processing unit 23 transmits a response to mobile terminal device 2 .

(SP server)
The SP server 4 is a server operated by a service provider (SP). The SP server 4 has a card information storage device 24 and a processor 25 .
The card information storage device 24 stores card information. As the card information, various information necessary for issuing the contactless IC card 3, such as an ID assigned to the card holder, can be adopted.
The processor 25 transmits the card information (ID etc.) stored in the card information storage device 24 to the mobile terminal device 2 when the mobile terminal device 2 transmits a request for transmission of the card information.

(IC card issuing process)
Next, the IC card issuing process executed by the card information acquisition unit 10, the request transmission unit 11, the FWT value acquisition unit 12, the timeout time setting unit 13, the command transmission unit 14, the no-response determination unit 16, the command determination unit 17, etc. explain. The IC card issuance process is executed when the card issuer operates the mobile terminal device 2 to activate the UI application for card issuance.
As shown in FIG. 4, in step S101, the card information acquisition unit 10 transmits a request for transmission of card information to the SP server 4. FIG. This causes the SP server 4 to transmit the card information.

Subsequently, in step S102, the card information acquisition unit 10 receives the card information transmitted by the SP server 4 and writes the received card information into the storage device 7. FIG.
Subsequently, in step S103, the request transmission unit 11 transmits a request command to the non-contact IC card 3 via the NFC antenna 5 and the NFC controller 6 by short-range wireless communication. A request command is an initial response command for setting a communication path between the mobile terminal device 2 and the non-contact IC card 3 . This initiates an initial response.
Subsequently, in step S104, the FWT value acquisition unit 12 receives the default FWT value transmitted from the non-contact IC card 3 via the NFC antenna 5 and the NFC controller 6 by short-range wireless communication. , writes the received FWT value to the storage device 7 .

Subsequently, in step S105, the timeout time setting unit 13 reads the specified value of the timeout time Tout from the storage device 7. FIG. Subsequently, the rest of the initial response processing conforming to ISO14443-3 is performed. Upon completion of the initial response processing, a communication path between the mobile terminal device 2 and the non-contact IC card 3 is set, the initial response processing ends, and the communication between the mobile terminal device 2 and the non-contact IC card 3 is completed. to start an active state for exchanging commands and responses.
Subsequently, in step S106, the timeout time setting unit 13 reads the weighting factor associated with the command to be transmitted next from the table 9 shown in FIG. Subsequently, according to the above equation (1), the read weighting coefficient is multiplied by the specified value of the timeout time Tout read in step S105, and the multiplication result is written in the storage device 7 as the timeout time Tout. That is, step S106 of the IC card issuing process causes the processor 8 to realize the timeout time setting function. If the timeout period Tout has been set once or more after the start of the IC card issuing process, the already written timeout period Tout is overwritten with a new timeout period Tout.

If the timeout time setting unit 13 determines that there is no weighting factor associated with the command to be transmitted next in the table 9 shown in FIG. 3 stored in the storage device 7, The timeout time Tout is set based on the information indicating the candidate for the longest timeout time Tout stored in the storage device 7, that is, based on the weighting factor "3".
Subsequently, in step S107, the command transmission unit 14 transmits a command to the non-contact IC card 3 existing within the communication range of the NFC antenna 5 via the NFC antenna 5 and the NFC controller 6 by short-range wireless communication. Send. That is, step S107 of the IC card issuing process causes the processor 8 to realize the transmission function. As a result, the non-contact IC card 3 is caused to perform the processing specified by the command, and the non-contact IC card 3 is caused to return a response.
This step S107 is repeatedly executed during the IC card issuing process, and the card information written in the storage device 7 in step S102 is written in the storage device 20 of the non-contact IC card 3 to issue the non-contact IC card 3. Commands are output sequentially.

Subsequently, the process proceeds to step S108, and the response receiving section 15 receives the response transmitted by the non-contact IC card 3. FIG. During execution of this step S108, the no-response determination unit 16 determines whether a response has been received within the timeout period written in the storage device 7 in step S106 from the time when the command transmission unit 14 transmitted the command. When it is determined that no response has been received within the time-out period, it is determined that the non-contact IC card 3 has not responded, and time-out processing is performed. As the timeout process, for example, a process for making the mobile terminal device 2 and the non-contact IC card 3 in an inactive state in which commands and responses are not exchanged can be adopted. That is, step S108 of the IC card issuing process causes the processor 8 to implement the reception function and the no-response determination function.
In step S109, the command determination unit 17 determines whether there is a command to be transmitted next. If it is determined that there is a command (Yes), the process returns to step S106. On the other hand, if it is determined that there is no command (No), the IC card issuing process is terminated.

(Other operations)
Next, the operation of the IC card issuing system 1 of this embodiment will be described.
First, it is assumed that the card issuer operates the mobile terminal device 2 and the mobile terminal device 2 transmits a card information transmission request to the SP server 4 as shown in FIG. 5 (step S201). Then, the SP server 4 receives the transmitted transmission request (step S202), and sends the mobile terminal device 2 of the transmission source the card information to be stored in the non-contact IC card 3 in the non-contact IC card 3 issuing procedure. is transmitted (step S203). Subsequently, the mobile terminal device 2 receives the transmitted card information and stores it in the storage device 7 (step S204).

Subsequently, the mobile terminal device 2 transmits a request command to the non-contact IC card 3 within the communication range of the NFC antenna 5 of the mobile terminal device 2 via near field communication (step S205). This initiates an initial response conforming to ISO14443-3. Subsequently, the non-contact IC card 3 receives the transmitted request (step S206), and transmits the FWT specified value to the mobile terminal device 2 of the transmission source (step S207). Subsequently, the mobile terminal device 2 receives the transmitted FWT specified value (step S208), and reads out the specified value of the timeout time Tout from the storage device 7 (step S209). Subsequently, after completing the rest of the initial response processing and setting a communication path between the mobile terminal device 2 and the non-contact IC card 3, commands and the like are exchanged between the mobile terminal device 2 and the non-contact IC card 3. Start active state.

Subsequently, the mobile terminal device 2 reads the weighting coefficient associated with the command to be transmitted next from the table 9 shown in FIG. The predetermined value of the timeout time Tout is multiplied by the weighting coefficient obtained, and the multiplication result is stored in the storage device 7 as the timeout time Tout (step S210). When the storage of the timeout time Tout is completed, the mobile terminal device 2 transmits a command to the non-contact IC card 3 via short-range wireless communication (step S211). Subsequently, the non-contact IC card 3 receives the transmitted command (step S212), and executes the processing specified by the received command, that is, the command processing (step S213). When the command processing is completed, the mobile terminal device 2 transmits a response to the mobile terminal device 2 (step S214), and the mobile terminal device 2 receives the transmitted response (step S215). Since the timeout time Tout has an appropriate value, the response is received within the timeout time Tout from the time the command is sent, and the non-contact IC card 3 is not erroneously determined to be non-responsive.

Subsequently, the mobile terminal device 2 reads out the weighting factor associated with the next command to be transmitted from the table 9 shown in FIG. The memory device 7 is overwritten as Tout (step S216). Here, it is assumed that the command to be transmitted next is a WRITE command that is expected to take the longest processing time when processed by the non-contact IC card 3 . Then, 900 ms, which is the longest timeout time Tout, is stored in the storage device 7 . When the storage of the timeout time Tout is completed, the mobile terminal device 2 transmits a command to the non-contact IC card 3 via short-range wireless communication (step S217). Subsequently, when the contactless IC card 3 receives the transmitted command (step S218) and determines that the time required to execute the command processing indicated by the received command is longer than the FWT specified value, the mobile terminal device 2 (step S219). Subsequently, the mobile terminal device 2 receives the transmitted FWT extension request transmission (step S220), and transmits an FWT extension response to the non-contact IC card 3 (step S221). Subsequently, the non-contact IC card 3 executes the processing specified by the received command, that is, the command processing (step S222). When the command processing is completed, the mobile terminal device 2 transmits a response to the mobile terminal device 2 (step S223), and the mobile terminal device 2 receives the transmitted response (step S224). Since the timeout time Tout is the longest value of 900 ms, even if the transmission of the response from the contactless IC card 3 is delayed, the response is received within the timeout time Tout from the point of transmission of the command, and the contactless IC card 3 is not erroneously determined to be non-response.

By repeating such a flow and repeating transmission and reception of commands, responses, etc. between the mobile terminal device 2 and the non-contact IC card 3, the card information received by the mobile terminal device 2 is stored in the non-contact IC card 3. The information is written in the device 20 and the non-contact IC card 3 is issued.

As described above, the mobile terminal device 2 according to the embodiment of the present invention includes the command transmission unit 14 that transmits a command to the non-contact IC card 3 via short-range wireless communication, and the response to the transmitted command. , a response receiving unit 15 that receives a response from the non-contact IC card 3 via short-range wireless communication; and a no-response determination unit 16 for determining that the is no response. Also, information indicating a time longer than the processing time expected to be required when the non-contact IC card 3 processes the corresponding command is associated with each of a plurality of predetermined commands, and is set as the timeout time Tout. A storage device 7 is provided for storing information indicating candidates for . Furthermore, after the communication path between the mobile terminal device 2 and the non-contact IC card 3 has been established, immediately before each command transmission, information indicating candidates associated with the command to be transmitted is stored from the storage device 7. and a timeout time setting unit 13 for setting the timeout time Tout based on the read information. Therefore, for example, when transmitting a command that takes a long time to process, the timeout period Tout can be lengthened. It can be prevented from being erroneously determined to be a response. Therefore, it is possible to provide the mobile terminal device 2 that can more appropriately determine whether the contactless IC card 3 is not responding.

Similarly, it is possible to provide a control program for the mobile terminal device 2 and a control method for the mobile terminal device 2 that can more appropriately determine whether the contactless IC card 3 is not responding.
Further, according to the mobile terminal device 2 according to the embodiment of the present invention, for example, when transmitting a command that takes a short time to process, the timeout time Tout can be shortened, and the non-contact IC card 3 is not responding. In this case, it is possible to immediately obtain a determination result indicating that fact.
Also, since the specified value of the timeout time Tout is maintained, another application using the timeout time Tout (for example, if the non-contact IC card 3 is an electronic money card, the balance of the electronic money card can be checked). without affecting the behavior of the app).

Further, in the mobile terminal device 2 according to the embodiment of the present invention, the timeout time setting unit 13 stores the information indicating the candidates for the timeout time Tout stored in the storage device 7 in correspondence with the command to be transmitted. If it is determined that there is no information indicating a candidate for the timeout period Tout, the information indicating the candidate for the longest timeout period Tout stored in the storage apparatus 7 is read from the storage apparatus 7, and based on the read information, Timeout time Tout is set. Therefore, unexpected commands not registered in the table 9 can be dealt with, and it is possible to more appropriately determine whether the contactless IC card 3 is not responding.

(Modification)
(1) In the above-described embodiment, the timeout period setting unit 13 reads information indicating candidates for the timeout period Tout associated with the command to be transmitted from the storage device 7, and based on the read information, sets the timeout period. Although an example of setting the time Tout has been shown, other configurations can also be adopted. For example, when the command is transmitted, the longest processing time (eg, 700 ms) is expected to be processed by the non-contact IC card 3, and the longest processing time is longer than the longest processing time (eg, 900 ms). may be set as the timeout time Tout. Specifically, as shown in FIG. 6, a table 9 that stores weighting coefficients "3" in association with all commands is used. Therefore, the storage device 7 stores information (weighting coefficient "3") indicating a time longer than the longest processing time of the command expected to be processed by the non-contact IC card 3 as the longest processing time. It is stored as information indicating candidates for the timeout period. As a result, the timeout time setting unit 13 multiplies the weighting factor "3" and the specified value "300 ms" of the timeout time Tout, and sets the result "900 ms" as the timeout time Tout.

In this case, as shown in FIG. 7, the timeout period Tout may be set only immediately before the first command is transmitted after the active state. Specifically, as shown in FIG. 8, when it is determined in step S109 that there is a command to be transmitted next (Yes), the process returns to step S107. As a result, the timeout period setting unit 13 sets the weighting coefficient "3" from the storage device 7 to the timeout period immediately before sending the first command after the communication path between the mobile terminal device 2 and the non-contact IC card 3 is set. Information indicating a candidate for Tout is read, and a timeout time Tout (900 ms) is set based on the read weighting coefficient "3" (information indicating a candidate for timeout time Tout). Therefore, the total time required for setting the timeout time Tout is reduced compared to the case where the timeout time Tout is set immediately before each command transmission after the communication path between the mobile terminal device 2 and the non-contact IC card 3 is set. can be shortened. In the sequence diagram of FIG. 7, step S216 of FIG. 5 is omitted.

(2) In addition, in the above embodiment, an example of using the non-contact IC card 3 as the non-contact IC medium is shown, but other configurations can also be adopted, such as transmission and reception of data, etc., by short-range wireless communication, and various Any medium may be used as long as it has a function to perform processing. For example, electronic paper that receives data from the mobile terminal device 2 by short-range wireless communication and writes the received data on a memory display may be used. Alternatively, for example, a contactless memory card that receives commands from the mobile terminal device 2 by short-range wireless communication and transmits information on stored data to the mobile terminal device 2 may be used.

(3) In addition, in the above embodiment, an example of using weighting coefficients as information indicating candidates for the timeout period Tout was shown, but other configurations can also be adopted. For example, as shown in FIG. 9, the result of multiplication of the weighting coefficient and the prescribed value of the timeout time Tout may be used.

DESCRIPTION OF SYMBOLS 1... IC card issuing system, 2... Mobile terminal device, 3... Contactless IC card, 4... SP server, 5... NFC antenna, 6... NFC controller, 7... Storage device, 8... Processor, 9... Table, 10... Card information acquisition unit 11 Request transmission unit 12 FWT value acquisition unit 13 Timeout time setting unit 14 Command transmission unit 15 Response reception unit 16 No response determination unit 17 Command determination unit 18 NFC antenna 19 NFC controller 20 storage device 21 processor 22 FWT value transmission unit 23 command processing unit 24 card information storage device 25 processor

Claims (7)

Receiving an FWT (Frame Waiting Time) value transmitted from a non-contact IC medium and receiving an FWT value extension request transmitted from the non-contact IC medium via near field communication (NFC) standard short-range wireless communication; and an NFC controller that transmits an FWT extension response to the non-contact IC medium that transmitted the FWT value extension request;
a command transmission unit that transmits a command to the non-contact IC medium via the near field communication by the NFC controller;
a response receiving unit that receives a response to the transmitted command from the non-contact IC medium via the short-range wireless communication by the NFC controller;
A response to the command is received within the time-out time , which is the time from the time the command is sent until the time-out processing is executed to make the non-contact IC medium in an inactive state where commands and responses are not exchanged. a no-response determining unit that determines that the non-contact IC medium is not responding when the non-contact IC medium is not responding, and executes the timeout process ;
Information indicating a time longer than a processing time expected to be required when the corresponding command is processed by the non-contact IC medium is associated with each of a plurality of predetermined commands as the timeout time candidate. a storage device that stores candidate information that is information indicating
after a communication path between the mobile terminal device and the non-contact IC medium is established, regardless of reception of the FWT value, reception of the FWT value extension request, and transmission of the FWT extension response in the NFC controller, Immediately before each transmission of the command, the candidate information associated with the command to be transmitted is read from the storage device, and the timeout period used by the no-response determination unit based on the read candidate information. A mobile terminal device comprising: a timeout time setting unit that sets the When the timeout time setting unit determines that there is no candidate information associated with the command to be transmitted among the candidate information stored in the storage device, the and reading the candidate information indicating the longest candidate for the timeout period stored in the storage device, and setting the timeout period used in the non-response determination unit based on the read candidate information. The mobile terminal device according to claim 1. Receiving an FWT (Frame Waiting Time) value transmitted from a non-contact IC medium and receiving an FWT value extension request transmitted from the non-contact IC medium via near field communication (NFC) standard short-range wireless communication; and an NFC controller that transmits an FWT extension response to the non-contact IC medium that transmitted the FWT value extension request;
a command transmission unit that transmits a command to the non-contact IC medium via the near field communication by the NFC controller;
a response receiving unit that receives a response to the transmitted command from the non-contact IC medium via the short-range wireless communication by the NFC controller;
A response to the command is received within the time-out time , which is the time from the time the command is sent until the time-out processing is executed to make the non-contact IC medium in an inactive state where commands and responses are not exchanged. a no-response determining unit that determines that the non-contact IC medium is not responding when the non-contact IC medium is not responding, and executes the timeout process ;
Information indicating a time longer than the longest processing time of a command expected to take the longest processing time when processed by the non-contact IC medium is stored as candidate information indicating a candidate for the timeout time. a storage device containing
irrespective of the reception of the FWT value, the reception of the FWT value extension request, and the transmission of the FWT extension response in the NFC controller, after the communication path between the mobile terminal device and the contactless IC medium is established, the first a timeout time setting unit that reads the candidate information from the storage device immediately before sending the command of (1) and sets the timeout time used in the no-response determination unit based on the read candidate information. A mobile terminal device characterized by: Receiving an FWT (Frame Waiting Time) value transmitted from a non-contact IC medium and receiving an FWT value extension request transmitted from the non-contact IC medium via near field communication (NFC) standard short-range wireless communication; and a processor of a mobile terminal device having an NFC controller that transmits an FWT extension response to the non-contact IC medium that transmitted the FWT value extension request, and capable of the short-range wireless communication by the NFC controller,
a transmission function for transmitting a command to the contactless IC medium via the near field communication by the NFC controller;
a receiving function of receiving a response to the transmitted command from the contactless IC medium via the short-range wireless communication by the NFC controller;
A response to the command is received within the time-out time , which is the time from the time the command is sent until the time-out processing is executed to make the non-contact IC medium in an inactive state where commands and responses are not exchanged. a non-response determination function for determining that the non-contact IC medium is non-responsive and executing the time-out process when the non-contact IC medium has not responded, and receiving the FWT value and the FWT value extension request in the NFC controller. , and each of a plurality of predetermined commands immediately before each command transmission after the communication path between the mobile terminal device and the non-contact IC medium is set regardless of the transmission of the FWT extension response. and stores information indicating a time longer than the processing time expected to be required when the corresponding command is processed by the non-contact IC medium as candidate information indicating candidates for the timeout time. reading out the candidate information associated with the command to be transmitted from the storage device, and setting the timeout period for setting the timeout period used in the no-response determination function based on the readout candidate information. A control program for a mobile terminal device characterized by realizing functions. Receiving an FWT (Frame Waiting Time) value transmitted from a non-contact IC medium and receiving an FWT value extension request transmitted from the non-contact IC medium via near field communication (NFC) standard short-range wireless communication; and a processor of a mobile terminal device having an NFC controller that transmits an FWT extension response to the non-contact IC medium that transmitted the FWT value extension request, and capable of the short-range wireless communication by the NFC controller,
a transmission function for transmitting a command to the contactless IC medium via the near field communication by the NFC controller;
a receiving function of receiving a response to the transmitted command from the contactless IC medium via the short-range wireless communication by the NFC controller;
A response to the command is received within the time-out time , which is the time from the time the command is sent until the time-out processing is executed to make the non-contact IC medium in an inactive state where commands and responses are not exchanged. a non-response determination function for determining that the non-contact IC medium is non-responsive and executing the time-out process when the non-contact IC medium has not responded, and receiving the FWT value and the FWT value extension request in the NFC controller. and immediately before the transmission of the first command after the communication path between the mobile terminal device and the non-contact IC medium is set, regardless of the transmission of the FWT extension response, causing the non-contact IC medium to process from a storage device that stores information indicating a time longer than the longest processing time of a command for which the longest processing time is expected in the A control program for a mobile terminal device, characterized by reading out supplementary information and realizing a timeout time setting function for setting the timeout time used in the no-response determination function based on the read out candidate information. Receiving an FWT (Frame Waiting Time) value transmitted from a non-contact IC medium and receiving an FWT value extension request transmitted from the non-contact IC medium via near field communication (NFC) standard short-range wireless communication; and a mobile terminal device having an NFC controller that transmits an FWT extension response to the non-contact IC medium that transmitted the FWT value extension request, wherein the mobile terminal device is capable of the short-range wireless communication by the NFC controller, ,
sending a command to the contactless IC medium via the near field communication by the NFC controller;
a step of receiving a response to the transmitted command from the non-contact IC medium via the short-range wireless communication by the NFC controller;
A response to the command is received within the time-out time , which is the time from the time the command is sent until the time-out processing is executed to make the non-contact IC medium in an inactive state where commands and responses are not exchanged. if not, determining that the contactless IC medium has not responded, and executing the timeout process ;
after a communication path between the mobile terminal device and the non-contact IC medium is established, regardless of reception of the FWT value, reception of the FWT value extension request, and transmission of the FWT extension response in the NFC controller, Immediately before each command is sent, each command is associated with each of a plurality of predetermined commands to indicate a time longer than the expected processing time required when the corresponding command is processed by the non-contact IC medium. reading the candidate information associated with the command to be transmitted from a storage device storing information as candidate information indicating candidates for the timeout period, and based on the read candidate information, and setting the timeout period used in the step of executing the timeout process . Receiving an FWT (Frame Waiting Time) value transmitted from a non-contact IC medium and receiving an FWT value extension request transmitted from the non-contact IC medium via near field communication (NFC) standard short-range wireless communication; and a mobile terminal device having an NFC controller that transmits an FWT extension response to the non-contact IC medium that transmitted the FWT value extension request, wherein the mobile terminal device is capable of the short-range wireless communication by the NFC controller, ,
sending a command to the contactless IC medium via the near field communication by the NFC controller;
a step of receiving a response to the transmitted command from the non-contact IC medium via the short-range wireless communication by the NFC controller;
A response to the command is received within the time-out time , which is the time from the time the command is sent until the time-out processing is executed to make the non-contact IC medium in an inactive state where commands and responses are not exchanged. if not, determining that the contactless IC medium has not responded, and executing the timeout process ;
after a communication path between the mobile terminal device and the non-contact IC medium is established, regardless of reception of the FWT value, reception of the FWT value extension request, and transmission of the FWT extension response in the NFC controller, Immediately before transmission of the first command, information indicating a time longer than the longest processing time of the command that is expected to take the longest processing time when processed by the non-contact IC medium is indicated as the timeout time candidate. reading the candidate information from a storage device stored as candidate information, and setting the timeout period used in the step of executing the timeout process based on the read candidate information. A control method for a mobile terminal device, characterized by:

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