JP2005275456A - Portable electronic medium, integrated circuit used in portable electronic medium, and method for issuing portable electronic medium - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To achieve an increase in speed of communications of an issuance instruction, etc. in issuance processing, and execute issuance procedures of a non-contact IC card in a short period of time. <P>SOLUTION: The non-contact IC card C receives an issuance instruction transmitted by an issuance system with a radio wave of a frequency for issuance processing, by a dedicated antenna for receiving a radio wave of a frequency for issuance processing, executes issuance processing corresponding to the issuance instruction, and, after the completion of the issuance processing according to the issuance instruction, makes the dedicated antenna disabled. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention has, for example, a portable electronic medium such as a non-contact IC card that has a wireless communication function and issuance information is written in a nonvolatile memory as an issuance process, an integrated circuit used for the portable electronic medium, and a portable The present invention relates to a method for issuing possible electronic media.

  Conventionally, an IC card as a portable electronic medium defines a key file, a data file, and the like necessary for its use purpose and use purpose in a nonvolatile memory inside the IC card, and further stores data in those files. It becomes usable by writing. This procedure is generally called IC card issue processing.

  The IC card incorporates an IC chip as an integrated circuit having a CPU, ROM, RAM, non-volatile memory, etc., and the ROM or the like responds to each command for processing commands from the outside in the manufacturing stage. Control programs are recorded in advance. In such an IC card, a function for executing an issuing process according to an issuing command such as a data write request from the issuing device in the issuing process as described above is prepared in advance.

  In the conventional IC card, in principle, one process is executed by one command, and a response indicating the processing result or the like is returned. For example, in the IC card issuance process, one command defines one file on the nonvolatile memory or writes one unit of data, and the process result is returned as a response. For this reason, in the conventional IC card issuance processing, the issuing device transmits issuance commands to each IC card as many as the number of files and data necessary for the issuance processing, and the IC card executes each issuance command sequentially, and the execution result Is returned to the issuing device.

  In particular, since IC cards generally handle important information such as financial information and personal information, the reliability and security of data recorded in the IC card are emphasized. In order to increase the reliability and security of data in response to such a request, the IC card performs a sequential process in which the processing of a given command is completed after the next command is received. Adopted. Furthermore, in recent years, IC cards have been used in various fields. For this reason, IC cards have become multifunctional, and one card has various functions. Such a multi-functional IC card needs to define a large number of files in a non-volatile memory or write a large amount of data in the issuing procedure.

  In the issue processing of the IC card as described above, the issue data is mainly written into the non-volatile memory of the IC card. However, the IC card is a non-volatile device such as an EEPROM or a flash memory as a data storage element. Memory is used. The memory elements constituting the nonvolatile memory used in these IC cards require a time of several mS to several hundred mS for writing data once. For this reason, the conventional IC card issuance procedure has a problem that the issuance process takes time. In particular, in an issuing process for writing a large amount of issued data, it is not uncommon for an issuing process for one IC card to take 10 minutes or more.

  In view of the above situation, there is a demand for a portable electronic medium that can be efficiently issued in a short time. This invention speeds up the issuance process and shortens the issuance procedure. It is an object of the present invention to provide a portable electronic medium, an integrated circuit used for the portable electronic medium, and a method for issuing the portable electronic medium, which can be efficiently performed by the mobile phone.

  The portable electronic medium according to the present invention operates in response to a received command, and includes a first antenna that receives radio waves of a predetermined frequency, and an issuance process that is higher than the predetermined frequency received by the first antenna. A second antenna that receives radio waves of a frequency for use, and processing means that executes issue processing in response to an issue command transmitted by radio waves of the frequency for issue processing received by the second antenna Has been.

  An integrated circuit used for a portable electronic medium according to the present invention is used for a portable electronic medium that operates in response to a received command. The integrated circuit is higher than a predetermined frequency of radio waves used for wireless communication by the portable electronic medium. The antenna is configured to receive an issuance processing frequency radio wave and a circuit that executes the issuance process in response to an issuance command transmitted by the issuance processing frequency radio wave received by the antenna.

  The method for issuing a portable electronic medium according to the present invention comprises a first antenna that transmits and receives radio waves of a predetermined frequency, and operates according to a command received by the first antenna; A method in a system comprising an issuing device that transmits an issue command related to a process for issuing a portable electronic medium, wherein the issuing device issues an issue command using a radio wave having a frequency for issue processing higher than the predetermined frequency. Transmitting and receiving an issuance command transmitted from the issuance device using radio waves of the issuance processing frequency by a second antenna that is tuned to the issuance processing frequency provided in the portable electronic medium; The portable electronic medium executes issue processing in response to an issue command transmitted by the radio wave having the frequency for issue processing received by the second antenna. To.

  According to another aspect of the present invention, there is provided a portable electronic medium comprising: a first antenna that transmits and receives radio waves of a predetermined frequency; and an integrated circuit that operates in accordance with a command received by the first antenna. And an issuance apparatus that transmits an issuance instruction related to the issuance process of the portable electronic medium, wherein the issuance apparatus uses radio waves having a frequency for issuance processing higher than the predetermined frequency. An issuance command is transmitted, and the issuance command transmitted from the issuance device using radio waves of the issuance processing frequency is received by a second antenna that is tuned to the issuance processing frequency provided on the integrated circuit. The integrated circuit executes the issuing process in response to the issuing command transmitted by the radio wave having the frequency for the issuing process received by the second antenna. To.

  According to the present invention, it is possible to provide a portable electronic medium capable of speeding up the issuing process and efficiently performing the issuing procedure in a short time, an integrated circuit used for the portable electronic medium, and a method for issuing the portable electronic medium. .

The best mode for carrying out the present invention will be described below with reference to the drawings.
First, the first embodiment will be described.
FIG. 1 is a diagram showing a configuration example of an IC card issuing system (portable electronic medium issuing device) 1 according to the first embodiment of the present invention. In the first embodiment, the issuance system 1 transmits an issuance command for a non-contact IC card C having a wireless communication function as a portable electronic medium and performs an issuance process on the non-contact IC card. It shall be

  As shown in FIG. 1, the issuing system 1 includes a control device 11 and a reader / writer 12, and the control device 11 and the reader / writer 12 are connected by a communication line 13. Thereby, the control device 11 and the reader / writer 12 are configured to transmit and receive data via the communication line 13.

  The control device 11 is composed of a PC or the like, and is a control unit that controls the whole, an operation unit that receives an operation instruction from an operator, a display unit that displays operation guidance for the operator, and the issuance of a non-contact IC card C A storage unit for storing data and the like, and an interface for transmitting and receiving data to and from the reader / writer 12 via the communication line 13 are included. The control device 11 functions as a host device for the reader / writer 12 and controls the operation by supplying an operation instruction to the reader / writer 12.

  The reader / writer 12 is a device that performs wireless communication with the non-contact type IC card C based on an operation instruction from the control device 11. The reader / writer 12 includes, for example, a control unit that performs operation control, a storage unit that temporarily stores data or communication data given from the control device 11, and data with the control device 11 via a communication line 13. And an interface for performing transmission / reception, and a transmission / reception unit for controlling transmission / reception of radio waves by the antenna.

  The reader / writer 12 transmits a command to the non-contact type IC card C based on an instruction from the control device 11 and receives a response from the non-contact type IC card C. . The reader / writer 12 has a function of performing wireless communication with a non-contact type IC card at a communication speed for issuing processing using radio waves having a frequency for issuing processing.

  The frequency for the issuance process is a predetermined frequency used for wireless communication with the non-contact IC card C during normal processing (operation) other than the issuance process of the non-contact IC card C (hereinafter, for normal operation) Higher frequency). For example, the frequency for normal operation used for wireless communication during operation is 13.56 MHz as a wireless communication frequency for a proximity IC card defined by ISO / IEC14443.

  In addition, the communication speed for the issuing process is a communication speed used for wireless communication with the non-contact type IC card C during normal processing (operation) other than the issuing process of the non-contact type IC card C (hereinafter referred to as normal). The communication speed is higher than the communication speed for operation. In order to increase the communication speed with the non-contact type IC card C, it is necessary to increase the frequency. In other words, the reader / writer 12 uses a radio wave having a frequency for issuance processing higher than the frequency for normal operation at the time of issuance processing to use the noncontact IC card C (or an LSI chip in the noncontact IC card). Realizes high communication speed.

Next, the configuration of the control system of the non-contact IC card C will be described.
FIG. 2 is a block diagram showing a configuration example of a control system of the non-contact type IC card C.
As shown in FIG. 2, the non-contact type IC card C includes a CPU (Central Processing Unit) 21, ROM 22, RAM 23, nonvolatile memory 24, transmission / reception circuit 25, power generation unit 26, first antenna 27, first antenna 27, Two antennas 28 and a transistor 29 are provided.

  The CPU 21, ROM 22, RAM 23, non-volatile memory 24, transmission / reception circuit 25, power supply generation unit 26, first antenna 27, transistor 29, and the like are integrally formed by an LSI chip 30 as an integrated circuit. It is embedded in the case of the contact IC card C.

  The CPU 21 functions as processing means and controls the entire non-contact type IC card. For example, the CPU 21 executes various data processing in accordance with commands from the reader / writer 12. The ROM 22 functions as a program memory, and is composed of a non-rewritable nonvolatile memory such as a mask ROM, for example. The ROM 22 stores a control program and data for controlling the operation of the non-contact IC card. For example, the processing for the command from the reader / writer 12 is realized by the CPU 21 executing a control program corresponding to the command stored in the ROM 22.

  The RAM 23 functions as a working memory and is composed of a rewritable volatile memory. The RAM 23 is used as a buffer memory that temporarily stores, for example, communication data with the outside and data for work in various processes executed by the CPU 21.

  The non-volatile memory 24 functions as a rewritable non-volatile data memory. For example, the non-volatile memory 24 is constituted by a non-volatile memory such as an EEPROM or a flash memory in which stored contents can be rewritten. The non-volatile memory 24 stores (stores) various data as operation data (issued data) according to the purpose and use of the contactless IC card. For example, when the contactless IC card C is used as a credit card, the non-volatile memory 24 stores credit information such as personal information of the holder, card issuing company, card identification information, and expiration date information. Recorded as transaction data.

  The power generator 26 functions as a power generator, generates an operating voltage from the radio wave received by the first antenna 27 or the second antenna 28, and uses the generated operating voltage as the non-contact IC card. It supplies to each part in C.

  The transmission / reception circuit 25 is a circuit that transmits and receives radio waves for wireless communication using the first antenna 27 or the second antenna 28. The transmission / reception circuit 25 includes, for example, a modulation circuit, a demodulation circuit, a transmission circuit, and a transmission / reception circuit. The transmission / reception circuit 25 has a function of processing a signal of a frequency for normal operation transmitted / received by the first antenna 27 and a process of a signal of a frequency for issue processing transmitted / received by the second antenna 28. It has a function to perform.

  The first antenna 27 is designed to be tuned to a radio wave having a normal operation frequency used for wireless communication when the non-contact IC card C is operated. An antenna that performs transmission and reception. The first antenna 27 is embedded in the housing of the non-contact IC card C and connected to the transmission / reception circuit 25 in the LSI chip 30.

  The second antenna 28 is designed to be tuned to a radio wave having a frequency for issue processing, and is a dedicated antenna for transmitting and receiving a radio wave at the frequency for issue processing. The second antenna 28 is installed in the LSI chip 30 at the stage of manufacturing the LSI chip 30 and connected to the transmission / reception circuit 25 in the LSI chip 30. A configuration example of the second antenna 28 will be described later in detail.

  The transistor 29 is disposed between the second antenna 28 and the transmission / reception circuit 25 and is configured to be turned on and off by the CPU 21. When the transistor 29 is on, the reception signal received by the second antenna 28 is supplied to the transmission / reception circuit 25, and when the transistor 29 is off, the second signal is received. A reception signal received by the antenna 28 is not supplied to the transmission / reception circuit 25. That is, the CPU 21 disables the second antenna 28 by turning off the transistor 29, and the transistor 29 functions as a cutting means for cutting the second antenna 28. It has become.

  The transmission / reception circuit 25 and the first antenna 27 function as reception means or communication means during normal operation. For example, a command transmitted from an external device with a radio wave having a frequency for normal operation is received by the first antenna 27, demodulated by the transmission / reception circuit 25, and supplied to the CPU 21.

  The transmission / reception circuit 25 and the second antenna 28 function as reception means or communication means at the time of issuing processing. For example, a command related to the issuance process transmitted from the reader / writer 12 with a radio wave of the issuance process frequency is received by the second antenna 28, demodulated by the transmission / reception circuit 25, and supplied to the CPU 21. It has become.

Next, the structure of the non-contact IC card C and the LSI chip 30 will be described.
FIG. 3 is a diagram showing an example of the overall structure of the non-contact type IC card C.
The non-contact type IC card C is composed of a card-shaped casing made of a resin member such as plastic. Further, as shown in FIG. 3, a first antenna 27 is formed in the case of the non-contact type IC card C, and the first antenna 27 is connected to the LSI chip 30. . The non-contact type IC card C having such a structure is normally obtained by connecting and embedding the LSI chip 30 and the first antenna 27 in a card substrate that becomes a casing of the non-contact type IC card C. It is formed.

  The first antenna 27 is designed to be tuned to the radio wave having the normal operation frequency, and is connected to the transmission / reception circuit in the LSI chip 30. As a result, during normal operation, the non-contact IC card C uses the frequency for normal operation by the first antenna 27 receiving the radio wave having the frequency for normal operation and processing it by the LSI chip 30. Operation is realized.

FIG. 4 is a diagram showing an example of the structure of the LSI chip 30 embedded in the non-contact type IC card C.
As shown in FIG. 4, the LSI chip 30 is formed on a silicone wafer and includes a circuit region 31 composed of various circuits and a second antenna 28. In the circuit area 31, circuits and storage elements that realize the CPU 21, ROM 22, RAM 23, nonvolatile memory 24, transmission / reception circuit 25, power supply generation unit 26, transistor 29, and the like as described above are arranged.

  The second antenna 28 is disposed so as to surround the circuit region 31 and is designed to be tuned to a radio wave having the frequency for the issuing process. The second antenna 28 is connected to a transmission / reception circuit through a transistor 29 in the circuit region 31. Therefore, when the transistor 29 is in the on state, the second antenna 28 is enabled, and the second antenna 28 receives a radio wave having a frequency for issuance processing and supplies a reception signal to the transmission / reception circuit. It is like that.

Next, the issuing process of the non-contact type IC card C configured as described above will be described.
First, the operation of the issuing system 1 in the issuing process of the non-contact type IC card C will be described.
FIG. 5 is a flowchart for explaining an operation example of the issuing system 1 in the issuing process of the non-contact type IC card C.
First, in the control device 11, various issue commands (issue command group) necessary for the issue process are set (step S11). Each issue command in the issue command group is a process of writing various issue data into the non-volatile memory 24 of a plurality of non-contact type IC cards C.

  That is, each issue command of the issue command group includes various issue commands (issue commands 1, 2,..., Such as a file definition command and a data write command sent from the issue system 1 to the contactless IC card C. n), which is set according to the specification of the nonvolatile memory 24 of the non-contact IC card C to be issued. Each issue command of the issue command group is set, for example, when the operator designates a definition file, write data, or the like on the nonvolatile memory 24 using the operation unit of the control device 11.

  The specification of the non-volatile memory 24 is determined in advance based on the intended use and intended use of the non-contact type IC card C to be issued, such as a key file and a data file defined on the non-volatile memory 24. Write data to be recorded in a file such as a file or setting data.

  When the issue command group is set in the control device 11, the control unit of the control device 11 sets the reader / writer 12 to perform wireless communication at the frequency for issue processing. When the reader / writer 12 is set to perform wireless communication at a frequency for issuing processing, the control unit of the control device 11 uses the reader / writer 12 to issue each issuing command (issue commands 1, 2,. ..., n) are transmitted in order (steps S12, S15, S18). Here, every time each issue command is sent, the control unit of the control device 11 waits for a response indicating the processing result from the non-contact IC card C to the issued issue command, and then sends the next issue command. It has become.

  When a response to the issuance command is received from the non-contact type IC card C (steps S13, S16, S19), the control unit of the control device 11 is a non-contact type IC card for the issuance command transmitted based on the response content. It is determined whether or not the above process has been executed normally (steps S14, S17, S20).

  If it is determined by this determination that the process has not been executed normally, the control unit of the control device 11 determines that the issuance process for the non-contact IC card C has an error, and performs the process for the issuance error (step) S24). As a process for this issuance error, for example, an issuance command that has not been executed normally can be retransmitted to retry the issuance process, or to be eliminated as a malfunction with the non-contact IC card C. good.

  Further, when it is determined that the execution is normally performed by the above determination, the control unit of the control device 11 issues the next issue instruction in order as the last issue instruction (issue instruction n) of the issue instruction group. Send in.

  Here, when it is determined that the processing for the last issued instruction (issued instruction n) of the issued instruction group has been executed normally (step S20, YES), the control unit of the control device 11 performs the non-processing for each issued instruction. It is determined that the issuing process for the contact IC card C has been completed. When it is determined that the issuing process of the non-contact IC card C for each issuing command is completed, the control unit of the control device 11 issues the non-contact IC card C at a frequency for the issuing process. Completion is notified (step S21).

  When a response to the issuance completion notification is received from the non-contact IC card C (step S22), the control unit of the control device 11 performs issuance processing with the non-contact IC card based on the response content. It is determined whether or not it has been completed normally (step S23). If it is determined that the issuing process for the non-contact type IC card C is normally completed (step S23, YES), the control unit of the control device 11 issues the issuing process for the non-contact type IC card C. Exit.

Next, the operation of the non-contact type IC card C with respect to the issuing system 1 as described above will be described.
FIG. 6 is a flowchart for explaining an operation example of the issuing process of the non-contact type IC card C.
As described above, the issuing system 1 confirms a response to each issuing command, and sequentially transmits the issuing commands using radio waves having a frequency for issuing processing. On the other hand, the non-contact type IC card C executes an issue process for the received issue command every time each issue command is received, and returns the processing result to the issue system 1 as a response to the issue command. ing.

  That is, each issuance command (issuance command 1, 2,..., N) transmitted from the issuance system 1 by radio waves having a frequency for issuance processing is received by the second antenna 28 of the non-contact IC card C. (Steps S31, S34, S37). The reception signal received by the second antenna 28 is demodulated by the transmission / reception circuit 25 and supplied to the CPU 21.

  As a result, when the issue command received by the second antenna 28 is supplied, the CPU 21 executes processing for the issue command by executing a control program corresponding to the issue command stored in the ROM 22. (Steps S32, S35, S38).

  When the process for the issue command received by the second antenna 28 is executed, the CPU 21 determines the process result for the issue command and transmits a response indicating the process result to the issue system 1 (steps S33 and S36). , S39). This response is modulated by the transmission / reception circuit 25 and transmitted from the second antenna using radio waves having the frequency for the issuing process. The response to the issuing system 1 may be any response that can be received by the issuing system 1. For example, the response may be transmitted by radio waves having a frequency for normal operation using the first antenna. good.

  Further, in the issuing system 1, as described above, when the processing in the non-contact type IC card with respect to each issuing command necessary for the issuing process is completed, an issue end notification is transmitted to the non-contact type IC card C. It has become. This issuance process notification is also transmitted by radio waves of the issuance process frequency.

  That is, each issuance end notification command transmitted from the issuance system 1 using radio waves of the issuance processing frequency is received by the second antenna 28 of the non-contact type IC card C (step S40). The reception signal received by the second antenna 28 is demodulated by the transmission / reception circuit 25 and supplied to the CPU 21.

  Thus, when the issue completion notification received by the second antenna 28 is supplied, the CPU 21 executes a process associated with the completion of the issue process (step S41). This issuance completion processing is processing for disabling the second antenna 28. For example, in the case of the configuration shown in FIGS. 2 and 4, the CPU 21 turns off the transistor 29 and electrically disconnects the second antenna 28 to make it unusable.

  When the issuance completion process for the issuance completion notification received by the second antenna 28 is executed, the CPU 21 determines whether or not the issuance completion process has been performed normally, and sends a response indicating the processing result. It transmits to the issuing system 1 (step S42). In this case, the response to the issuing system 1 is based on the radio wave of the normal operation frequency using the first antenna because the second antenna is not usable in the issuing completion process. To send.

  Note that a response indicating that the issuance completion notification has been received may be transmitted from the second antenna using a radio wave having a frequency for the issuance process before the second antenna is disabled. In this case, a process for disabling the second antenna 28 may be executed after transmitting a response indicating that the issue completion notification has been received.

  As described above, in the first embodiment, the non-contact type IC card receives an issuance command transmitted from the issuance system using the issuance processing frequency radio wave. The issuance process corresponding to the issuance command is executed after being received by the second antenna as the dedicated antenna, and the dedicating antenna is disabled after the issuance process corresponding to the issuance instruction is completed. Thereby, the communication speed of the issue command in the issue process can be increased, and the non-contact type IC card issue procedure can be performed in a short time.

  In addition, a dedicated antenna for receiving radio waves with a frequency for issuing is installed separately from the antenna receiving radio waves with a frequency for normal operation, and is used after the issuing process for the non-contact IC card is completed. Because it has been disabled, the communication speed is increased by using radio waves of the frequency for issuing processing, and communication in a prescribed communication method that is predetermined by radio waves of the frequency for normal operation is realized during operation. be able to.

  In addition, since a transistor capable of on / off control is provided between the dedicated antenna and the transmission / reception circuit for processing the received signal in the non-contact type IC card, the inside of the non-contact type IC card after the issuing process is completed. By turning off the transistor in the process, the dedicated antenna can be electrically disconnected and disabled.

  Next, a second embodiment will be described.

  In the first embodiment described above, the case where the issuing process is performed on the non-contact IC card in which the antenna, the LSI chip, etc. are embedded has been described. However, in the second embodiment described below, Form that realizes a non-contact IC card issuance procedure by performing issuance processing on an LSI chip as an integrated circuit for a contact IC card and embedding the issued LSI chip in a non-contact IC card Will be described.

  In the second embodiment, the issuing system that performs the issuing process on the LSI chip has the same configuration as the issuing system 1 shown in FIG. That is, in the second embodiment, description will be made assuming that the issuing system including the control device 11 and the reader / writer 12 performs the issuing process on the LSI chip 40.

  First, an LSI chip according to the second embodiment will be described.

  FIG. 7 is a diagram showing a configuration in a manufacturing process of the LSI chip 40 as an integrated circuit used in the non-contact type IC card according to the second embodiment.

  As shown in FIG. 7, the LSI chip 40 is formed on a silicone wafer and includes a circuit area 41 composed of various circuits and an LSI antenna 42 as a second antenna that is tuned to a radio wave having a specific frequency. Further, in the manufacturing process of the LSI chip 40, a plurality of LSI chips 40 are arranged and manufactured on the silicone wafer as shown in FIG. That is, a plurality of LSI chips 40 are manufactured in a state where they are arranged on a silicone wafer, and each LSI chip 40 is formed by being cut out from the silicone wafer along the dotted line shown in FIG.

  In the circuit area 41, for example, various circuits and storage elements for realizing the CPU 21, ROM 22, RAM 23, nonvolatile memory 24, transmission / reception circuit 25, power supply generation unit 26, and the like shown in FIG. Each function realized by the circuit and the memory element provided in the circuit area 41 is the same as that in the LSI chip 30 shown in FIG.

  The LSI antenna 42 is disposed so as to surround the circuit area 41 in each LSI chip 40 and is designed to be tuned to a radio wave having a frequency for issuing processing. That is, the LSI antenna 42 is formed on the silicone wafer so as to surround the circuit region 41 in the manufacturing process of the LSI chip 40. Since the function of the LSI antenna 42 is the same as that of the second antenna 28, detailed description thereof is omitted.

  In addition, as shown in FIG. 7, an issue process is performed on a plurality of LSI chips 40 formed on the silicone wafer before cutting into the individual LSI chips 40. This is because, in the configuration shown in FIG. 7, when the individual LSI chip 40 is cut out along the dotted line shown in FIG. 7, the LSI antenna 42 is cut and becomes unusable. That is, in the second embodiment, as shown in FIG. 7, the issuing process is performed in a state where a plurality of LSI chips 40 are arranged on a silicone wafer, and individual LSIs are issued when the issuing process is completed. The chip 40 is cut out.

  According to the configuration as described above, the LSI antenna 42 as a dedicated antenna used only for the issuing process is formed in the manufacturing stage of the LSI chip 40, and the LSI antenna 42 is used to generate radio waves having a frequency for the issuing process. Thus, the issuing process is performed on each LSI chip 40.

  That is, since the LSI antenna can be formed at the manufacturing stage of the LSI chip, the LSI antenna can be formed at a lower cost than providing a dedicated antenna for receiving radio waves having a frequency for issuing processing after the LSI chip is completed. In addition, since the LSI antenna is physically cut off in the process of cutting out individual LSI chips by performing issuance processing at the LSI chip manufacturing stage, it is easy to completely disable the LSI antenna during operation. Can be realized.

Next, an issuance process for the LSI chip 40 configured as described above will be described.
The issuing process for the LSI chip 40 is as shown in FIGS. 5 and 6 by the one-to-one communication between the issuing system 1 and each LSI chip 40 as described in the first embodiment. In this second embodiment, an example in which the issuing process is performed by performing one-to-many communication between the issuing system 1 and the LSI chip 40 will be described.

  First, the operation of the issuing system 1 at the time of issuing processing according to the second embodiment will be described.

  FIG. 8 is a flowchart for explaining an operation example of the issuance system 1 in the case where a plurality of LSI chips 40 perform an issuance process according to an issuance instruction.

  First, in the control device 11, various issue commands (issue command group) necessary for the issue process are set (step S51). Each issue command in the issue command group is a command that requests each LSI chip 40 to write data to the nonvolatile memory 24 as issue processing, but does not request a response to the processing result. is there. For example, each issue command of the issue command group is a plurality of commands (issue commands 1, 2,..., N) as a plurality of issue commands such as file definition commands and data write commands on the nonvolatile memory 24. is there.

  That is, each issue command of the issue command group is a file definition command, a data write command, or the like in the nonvolatile memory 24, and is set according to the specifications of the non-contact IC card C in which the LSI chip 40 is embedded. Is. Accordingly, since the same data is written into the nonvolatile memory 24 in the issuing process in each LSI chip 40 embedded in the non-contact type IC card C used for the same usage purpose or usage, the above issued instruction group Is common to a plurality of LSI chips 40. Each issue command of the issue command group is set by, for example, an operator specifying it on the operation unit of the control device 11.

  When an issue command group is set in the control device 11, the control unit of the control device 11 requires each LSI chip 40 to execute processing for each issue command (issue commands 1, 2,..., N). Time (processing time) is determined (step S12). The processing time for each issued command is a processing time predicted based on the operation speed of the LSI chip 40, the time required for writing data to the nonvolatile memory 24, and the like. The processing time for each issued command may be determined when each issued command is transmitted.

  When the processing time for each issue command of the issue command group is determined, the control unit of the control device 11 sets the reader / writer 12 to perform wireless communication at the frequency for issue processing. When the reader / writer 12 is set to perform wireless communication at a frequency for issue processing, the control unit of the control device 11 issues each issue command (issue command 1, 2,..., N) by the reader / writer 12. Sequentially transmitted by radio waves of processing frequency (steps S53, S55, S57). Each issue command is transmitted from the reader / writer 12 to each LSI chip 40 in the communication range based on an instruction from the control unit 11 from the control unit.

  When an issue command (issue commands 1, 2,..., N) is transmitted by the reader / writer 12 using radio waves of a frequency for issue processing, the control unit of the control device 11 issues an issue command (not shown) using the timer (not shown). The time from when the issue command 1, 2,..., N) is transmitted is counted, and it is monitored whether or not the processing time for the issue command has elapsed (steps S54, S56, S58). Whenever it is determined that the processing time for the issued issue command has elapsed, the control unit of the control device 11 sequentially transmits the next issue command from the reader / writer 12 using the radio wave of the issue processing frequency. .

  Next, the operation of each LSI chip 40 in response to an issue command transmitted from the issue system 1 by the above operation will be described.

  FIG. 9 is a flowchart for explaining an operation example of each LSI chip 40 in response to an issue command from the issue system 1.

  Here, for the LSI chip 40 in the state shown in FIG. 7, for example, a plurality of issue commands (issue commands 1, 2,... n) are transmitted sequentially. Each issue command (issue command 1, 2,..., N) is transmitted from the reader / writer 12 of the issue system 1 to a plurality of LSI chips 40 by using radio waves having a frequency for issue processing. On the other hand, each LSI chip 40 receives each issue command and executes a process corresponding to each issue command without response to each issue command.

  That is, every time each issue command (issue command 1, 2,..., N) is transmitted from the issue system 1, the LSI antenna 42 of each LSI chip 40 receives the issue command. Here, as described above, the LSI antenna 42 is designed to be tuned to the radio wave having the frequency for the issuing process, as described above. Therefore, the LSI antenna 42 is transmitted from the radio system having the frequency for the issuing process. An issue command is received (step S61).

  When the issuance command transmitted by the LSI antenna 42 using the radio wave having the issuance processing frequency is received, the received signal is demodulated by the transmission / reception circuit 25 in the circuit area 41 and supplied to the CPU 21. When the issuance command received by the LSI antenna 42 is supplied, the CPU 21 executes processing according to the issuance command based on the control program stored in the ROM 22.

  Further, when the issue command is received by the LSI antenna 42, the CPU 21 determines that a response to the issue command is unnecessary by the control program stored in the ROM 22. For this reason, when the processing corresponding to the issue command received by the LSI antenna 42 is executed, the CPU 21 waits for a command such as the next issue command without returning a response such as the processing result to the issue system 1. (Step S63).

  Through the above-described operation, the issuing system 1 sends all the issuing commands necessary for the issuing process to the reader / writer 12 using the frequency of the issuing process regardless of whether or not there is a response from each LSI chip 40. Are sequentially transmitted to a plurality of LSI chips 40 within the communication range. On the other hand, each LSI chip 40 sequentially receives each issuance command transmitted from the issuance system 1 by radio waves of the issuance processing frequency by each LSI antenna 42 provided on each LSI chip 40, and The processing for each issue command is executed without a response to the issue command.

  Thereby, each issuance command can be collectively transmitted to a plurality of LSI chips 40 by increasing the communication speed with radio waves having a frequency for issuance processing higher than the frequency for normal operation. As a result, issue processing based on a plurality of issue commands in a large number of LSI chips 40 can be executed in a short time.

Next, a confirmation process for confirming whether or not each LSI chip 40 has been normally issued will be described.
According to the procedure of the issuance process as shown in FIGS. 8 and 9 described above, the issuance system 1 cannot confirm whether each LSI chip 40 has normally executed the issuance process. For this reason, it is necessary for the LSI chip 40 that has been issued in the above-described procedure to check whether or not the issue process has been performed normally. In the second embodiment, the issuing system 1 transmits a confirmation command to the LSI chip 40 that has been issued, and the issuing process is normally performed based on a response from the LSI chip 40 to the confirmation command. It shall be determined whether or not.

  The processing for confirming whether or not each LSI chip 40 has been normally issued may be performed as long as the reader / writer 12 of the issuing system 1 and each LSI chip 40 can perform one-to-one communication. . For example, the reader / writer 12 may realize one-to-one communication with a specific LSI chip 40 within the communication range by communication using an existing communication radio wave collision avoidance (anti-collision) procedure. As an anti-collision procedure, for example, the issuing system 1 assigns a unique identification number to each LSI chip 40 within the communication range at the beginning of the communication procedure, One LSI chip 40 may be designated one by one to realize one-to-one communication between each LSI chip 40 and the issuing system.

  FIG. 10 is a flowchart for explaining an operation example on the issue system side in the confirmation processing for confirming whether or not each LSI chip 40 is normally issued.

  First, the operator of the issuing system 1 inputs the operation instruction to place the issued LSI chip 40 within the communication range of the reader / writer 12 and confirm the issuing process at the operation unit of the control device 11. To do. Then, the control unit of the control device 11 performs an anti-collision procedure for each LSI chip existing within the communication range of the reader / writer 12, and determines the one-to-one communication status between the reader / writer 12 and each LSI chip 40. Secure. When a one-to-one communication state with each LSI chip 40 is secured, the control unit of the control device 11 transmits a confirmation command to the LSI chip 40 by the reader / writer 12 using radio waves having the frequency for the issuing process. (Step S71).

  This confirmation command is a command for confirming the contents written in the nonvolatile memory 24 as a processing result for the issued command to the LSI chip 40 and requesting the confirmation result as a response. A response to the confirmation command is received by the reader / writer 12 and supplied from the reader / writer 12 to the control device 11.

  That is, after transmitting the confirmation command, the control unit of the control device 11 waits for a response from the LSI chip 40. In this state, when the reader / writer 12 receives a response from the LSI chip 40 (step S72), the control unit of the control device 11 performs normal issue processing on the LSI chip 40 based on the response. It is determined whether or not there is (step S73).

  For example, when a response indicating that the issuance process is normally performed from the LSI chip 40 in response to the confirmation command, the control unit of the control device 11 has issued the LSI chip 40 normally. (Step S73, YES), the fact is displayed on the display unit of the control device 11 to notify the operator.

  When a response to the effect that the issuing process has not been normally performed is received from the LSI chip 40, the control unit of the control device 11 determines that the LSI chip 40 has not been normally issued (step) S23, NO), an error process is performed as a process for the issue error (step S24). As this error processing, it may be displayed on the display unit of the control device 11 that the LSI chip 40 is not normally issued and notified to the operator, or the LSI chip 40 may be in a predetermined state. The error processing may be performed.

  Next, the operation of each LSI chip 40 in response to a confirmation command transmitted from the issuing system 1 by the above operation will be described.

  FIG. 11 is a flowchart for explaining an operation example on the side of each LSI chip 40 in the confirmation processing for confirming whether or not each LSI chip 40 has been normally issued.

  Here, for example, a confirmation command for requesting confirmation from the reader / writer 12 of the issuing system 1 using the radio wave of the frequency for issuing processing is performed as shown in FIG. Suppose that it was sent. In response to this confirmation command, each LSI chip 40 confirms the recorded contents of the nonvolatile memory 24 in the circuit area 41 and executes a process of returning a response indicating the confirmation result to the issuing system 1.

  That is, when the LSI antenna 42 receives a confirmation command transmitted from the issuing system 1 using radio waves having the frequency for the issuing process (step S81), the CPU 21 performs the processing based on the control program stored in the ROM 22. A confirmation process corresponding to the confirmation command is executed (step S82). Here, in response to the confirmation command, a control program for confirming whether or not the data written in the nonvolatile memory 24 is normal is executed.

  For example, as the confirmation process, information indicating the number of issued instructions executed and whether or not each issued instruction has been normally executed is recorded in a predetermined area of the nonvolatile memory 24, and the information is confirmed with the confirmation instruction. You may make it confirm based on. In this case, the issuing system 1 transmits the number of issuing instructions that should have been executed together with the confirmation instruction, and in response to this, the issued issuing instructions recorded in a predetermined area of the nonvolatile memory 24 by the LSI chip 40 The number of issued commands and the number of issued commands notified together with the confirmation command are the same, and whether or not each issued command is normally executed determines whether or not the issuing process is normally performed. It ’s fine.

  Further, as the confirmation process, the validity of the data recorded in the memory area of the nonvolatile memory 24 that has been written by the issue command may be confirmed by a method such as a sum check. In this case, the value when the issue system 1 is normally issued together with the confirmation command is transmitted to the LSI chip 40, and the data recorded in the memory area of the non-volatile memory 24 by the LSI chip 40 is transmitted. It may be determined whether or not the issuance process has been normally performed based on whether or not the value of the value matches the value in the case of the normal issuance process notified together with the confirmation command.

  When the confirmation process as described above is completed, the CPU 21 outputs the confirmation result as the confirmation process result to the issuing system 1 as a response using the LSI antenna 42 (step S83).

  As described above, the issuing system 1 can confirm whether or not the issuing system 1 is normally performing the issuing process in each LSI chip 40 in response to the confirmation command.

  By the operation as described above, the issuing system 1 issues an issuing command for requesting whether or not the issuing processing by the issuing command in the LSI chip 40 has been normally performed to each LSI chip 40 by using radio waves of a frequency for issuing processing. In response to this, each LSI chip 40 receives the confirmation command transmitted from the issuing system 1 by the radio wave of the frequency for issuing processing from the LSI antenna 42 by each LSI antenna 42, and issues the issuing processing for the issuing command. As a result, a process for confirming whether or not the content of the nonvolatile memory 24 is normal is executed, and a response indicating the confirmation result is output to the issuing system 1.

  As a result, a confirmation command for an LSI chip that has been issued by a plurality of issue commands without a response can be transmitted at a higher communication speed using radio waves having a frequency for issue processing higher than the frequency for normal operation. . As a result, in order to issue a large number of LSI chips 40 in a short period of time, it is confirmed whether or not the issuing process has been normally performed for the LSI chip 40 that has been issued without a response to each issue command. It is possible to execute the issuance process for a large number of LSI chips 40 in a short time and to reliably perform the issuance process for each LSI chip 40.

  The confirmation process as described above may be executed in a command process for a normal non-contact type IC card after each LSI chip 40 for which the above-described issuing process has been completed is embedded in the non-contact type IC card C. good.

  According to the second embodiment as described above, the LSI chip 40 subjected to the issuing process and the confirmation process is cut out by a dotted line shown in FIG. Each LSI chip 40 is formed in a state where the antenna 42 cannot be used. As a result, the LSI antenna 42 can be completely disabled when formed as an individual LSI chip 40, and the above-mentioned LSI can be used during normal operation of the non-contact IC card C in which the individual LSI chip 40 is embedded. The antenna can be prevented from affecting.

  Furthermore, the issue-processed non-contact type IC card is completed by embedding each of the issue-processed LSI chips 40 formed in the above-described procedure in the case of the non-contact type IC card C. As a result, it is possible to perform an issuance process on the LSI chip 40 that controls the operation of the non-contact type IC card in the manufacturing stage of the LSI chip 40, and it is possible to improve the efficiency of the procedure for manufacturing and issuing the entire non-contact type IC card. .

  In the second embodiment described above, the issuing process is performed for a plurality of LSI chips 40. However, the first embodiment is applied to the LSI chip 40 in the state shown in FIG. The issuance processing in the one-to-one communication mode as described in the above is executed, and the issued LSI chip 40 is cut out to the individual LSI chip 40 from the state shown in FIG. You may make it embed in. This can be realized, for example, by securing a one-to-one communication state between the issuing system and each LSI chip by the above-described anti-collision procedure, and performing the issuing process by the operations shown in FIGS. .

The figure which shows the structural example of the IC card issue system which concerns on embodiment of this invention. The block diagram which shows the structural example of the control system in a non-contact-type IC card. The block diagram which shows the structure in a non-contact-type IC card. The figure which shows the structural example of the LSI chip embed | buried in the non-contact-type IC card based on 1st Embodiment. The flowchart for demonstrating the operation example of the issuing system in the issuing process by the several issuing command which concerns on 1st Embodiment. The flowchart for demonstrating the operation example of the non-contact-type IC card in the issuing process by the several issuing command which concerns on 1st Embodiment. The figure which shows the state in the manufacturing process of the LSI chip which concerns on 2nd Embodiment. The flowchart for demonstrating the operation example of the issue system in the issue process by the several issue instruction which concerns on 2nd Embodiment. The flowchart for demonstrating the operation example of the non-contact-type IC card in the issuing process by the several issuing command which concerns on 2nd Embodiment. The flowchart for demonstrating the operation example of the issuing system in the confirmation process which concerns on 2nd Embodiment. The flowchart for demonstrating the operation example of the non-contact-type IC card in the confirmation process which concerns on 2nd Embodiment.

Explanation of symbols

  C: Non-contact card, 1 ... Issuing system, 11 ... Control device, 12 ... Reader / writer, 12a ... Communication range, 13 ... Communication line, 21 ... Control unit, 21a ... Timer, 22 ... Operation unit, 23 ... Display unit , 24 ... storage unit, 25 ... interface, 31 ... control unit, 32 ... storage unit, 33 ... interface, 34 ... transmission / reception unit, 35 ... antenna, 41 ... CPU, 42 ... ROM, 43 ... RAM, 44 ... non-volatile memory 45 ... Transmission / reception circuit, 46 ... antenna, 47 ... power generation unit, 50 ... conveying device

Claims (13)

In a portable electronic medium that operates in response to received instructions,
A first antenna for receiving radio waves of a predetermined frequency;
A second antenna for receiving radio waves having a frequency for issuance processing higher than a predetermined frequency received by the first antenna;
Processing means for executing issue processing in response to an issue command transmitted by radio waves of the frequency for issue processing received by the second antenna;
A portable electronic medium comprising: The second antenna is configured to be in an unusable state after the issuing process by the issuing command transmitted by the radio wave of the issuing process frequency is completed.
The portable electronic medium according to claim 1, wherein the portable electronic medium is a portable electronic medium. And a switching means for disabling the second antenna after completion of the issuing process by the issuing command transmitted by the radio wave of the issuing process frequency received by the second antenna;
The portable electronic medium of claim 1, comprising: The switching means is a switch for switching a connection state between the second antenna and the processing means.
The portable electronic medium according to claim 3, wherein: In an integrated circuit used in a portable electronic medium that operates in response to a received command,
An antenna for receiving radio waves having a frequency for issuance processing higher than a predetermined frequency of radio waves used for radio communication by the portable electronic medium;
A circuit for executing issue processing in response to an issue command transmitted by radio waves of the frequency for issue processing received by the antenna;
An integrated circuit used for a portable electronic medium, comprising: The antenna is configured to be in an unusable state after completion of an issuance process according to an issuance command transmitted by radio waves having a frequency for the issuance process.
An integrated circuit used for the portable electronic medium according to claim 5. The antenna is configured to be physically cut and unusable when formed in each integrated circuit.
An integrated circuit used for the portable electronic medium according to claim 5. A portable electronic medium that includes a first antenna that transmits and receives radio waves of a predetermined frequency, and that operates in accordance with a command received by the first antenna; and an issue command related to an issue process of the portable electronic medium. A method for issuing a portable electronic medium in a system comprising an issuing device for transmitting,
The issuance device transmits an issuance command using radio waves having a frequency for issuance processing higher than the predetermined frequency,
An issue command transmitted from the issue device by radio waves of the issue processing frequency is received by a second antenna that is tuned to the issue processing frequency provided in the portable electronic medium,
The portable electronic medium executes issue processing in response to an issue command transmitted by radio waves of the frequency for issue processing received by the second antenna.
A method of issuing a portable electronic medium characterized by the above. Furthermore, the second antenna is made unusable after the issuing process by the issuing command is completed.
9. The portable electronic medium issuance method according to claim 8, wherein the portable electronic medium is issued. Furthermore, after the issuing process by the issuing command is completed, the second antenna is disabled by switching a switch connected to the second antenna.
The portable electronic medium according to claim 9, further comprising: A portable electronic medium comprising a first antenna that transmits and receives radio waves of a predetermined frequency, and an integrated circuit that operates in accordance with a command received by the first antenna, and a process for issuing the portable electronic medium A method for issuing a portable electronic medium in a system comprising an issuing device for transmitting an issuing command,
The issuance device transmits an issuance command using radio waves having a frequency for issuance processing higher than the predetermined frequency,
An issuance command transmitted from the issuance device using radio waves of the issuance processing frequency is received by a second antenna tuned to the issuance processing frequency provided on the integrated circuit,
The integrated circuit executes issue processing in response to an issue command transmitted by radio waves of the frequency for issue processing received by the second antenna;
A method of issuing a portable electronic medium characterized by the above. Further, after the issue processing in the integrated circuit by the issue command is completed, the second antenna is made unusable.
12. The portable electronic medium issuance method according to claim 11, wherein the portable electronic medium is issued. The issuance command is issued to each integrated circuit in a state where a plurality of integrated circuits are formed on a single substrate in a manufacturing stage of the integrated circuit before being embedded in a casing forming the portable electronic medium. Sent from the device,
The issuance process is executed in response to an issuance command received by each of the integrated circuits formed on one substrate by the respective second antenna,
Further, when the issue process in each integrated circuit by the issue command is completed and the individual integrated circuit is cut out from the substrate, the second antenna is physically cut off.
The integrated circuit used for the portable electronic medium according to claim 11.

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