JP2006157392A - Information processing apparatus and method, recording medium and communication control program - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To easily provide a service desired by a user by preventing unneeded radio waved from radiating. <P>SOLUTION: A detector 13 detects the adjacency or contact of an IC card 11. When the IC card 11 is detected, a PC 12 makes an antenna 15 radiate a radio wave. The antenna 15 receives a service code transmitted from the IC card 11 and supplies the received service code to the PC 12 through a reader/writer 14. The PC 12 starts an application program specified by the service code to execute prescribed processing. When the processing ends, the PC 12 makes the antenna 15 stop radiating a radio wave. This invention is applicable to a railroad ticket checking system, a terminal with built-in PC, or the like. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to an information processing device and method, a recording medium, and a communication control program, and more particularly, to an information processing device and method, a recording medium, and a communication control program for wireless communication.

  Non-contact IC cards (hereinafter referred to as IC cards) have been used in railway ticket gate systems and the like. The user can receive services such as railway ticketing processing and electronic money settlement processing from an apparatus connected to the reader / writer simply by holding the IC card over the reader / writer.

  This reader / writer always radiates electromagnetic waves for communicating with the IC card and performs polling to detect the IC card. When the user holds the IC card over the reader / writer and the IC card is placed at a position where it can communicate with the reader / writer, the reader / writer detects the IC card and communicates with the detected IC card. Start.

  Some conventional reader / writers turn on the system (start up the system) when necessary. In this reader / writer, when communication with the IC card is started, power is supplied from the power source to the reader / writer. When the reader / writer is supplied with power, the reader / writer radiates electromagnetic waves, Start communication with the card.

  Further, when the reader / writer is connected to the computer, when the reader / writer starts communication with the IC card, the computer starts (executes) a program for controlling the reader / writer. The reader / writer radiates electromagnetic waves (radio waves) based on control by a program executed in the computer and starts communication with the IC card.

  However, devices connected to a reader / writer that constantly radiates radio waves use other wireless LANs (Local Area Network) such as the so-called Wi-Fi (Wireless Fidelity) (trademark) and Bluetooth (Bluetooth). When wirelessly communicating with other devices, there is a problem that communication between the device connected to the reader / writer and other devices may be interrupted due to suppression by harmonic components of radio waves radiated by the reader / writer. It was.

  In addition, when the reader / writer system is turned on as necessary, or a program for controlling the reader / writer is started, and then the reader / writer radiates radio waves and starts communication with the IC card. First, the user must start up the reader / writer system or start a program for controlling the reader / writer and then hold the IC card over the reader / writer to start communication with the reader / writer. For this, there is a problem that a two-stage work is required and the work is very complicated.

  As a method for solving these problems, there has been proposed a method of detecting an IC card in which a permanent magnet is incorporated by providing means for detecting a magnetic field generated by the permanent magnet in the reader / writer (for example, Patent Document 1). reference). This reader / writer detects the IC card by detecting the magnetic field generated by the permanent magnet, and then radiates radio waves to start communication with the IC card. Therefore, in this reader / writer, communication with the IC card can be performed without requiring a two-step operation and without always radiating radio waves.

JP 2001-243432 A

  However, in the technique disclosed in Patent Document 1 described above, since the reader / writer can provide only one service to the IC card, the user (IC card) tries to receive a plurality of services. In this case, reader / writers must be installed (arranged) by the number of services that the IC card is to receive.

  That is, when data and programs for receiving a plurality of services are stored in the IC card, the user searches for a reader / writer that can provide a desired service from a plurality of installed reader / writers, I had to hold an IC card over the reader / writer. Therefore, there is a problem that it is very difficult for the user to know which reader / writer should hold the IC card when receiving a desired service.

  Further, when the user has a plurality of IC cards, there is a problem that it is impossible to select an appropriate IC card because it is not known which IC card can be used to receive which service.

  The present invention has been made in view of such circumstances, and is intended to prevent unnecessary radio waves from being radiated and to provide a service desired by a user more easily.

  The information processing apparatus according to the present invention radiates an electromagnetic wave for communicating with a detected communication device and a detection unit that detects proximity or contact of the communication device, and performs processing to be executed that has been transmitted from the communication device. A communication unit that receives information for specifying, an execution control unit that causes an application program for executing a process specified by the received information to execute a predetermined process, and a communication device when a communication device is detected Communication means for radiating electromagnetic waves to start communication with the communication device, and communication control means for controlling the communication means so as not to radiate electromagnetic waves when communication with the communication device is completed. Features.

  The communication control means further controls the communication means so as not to radiate electromagnetic waves when communication with the communication apparatus cannot be started even after a predetermined period has elapsed since the proximity or contact of the communication apparatus has been detected. Can be.

  The information processing apparatus of the present invention further includes display means for displaying an image representing each of the processes specified by each of the received information when receiving a plurality of information, and the execution control means receives the plurality of information. When one image is selected from a plurality of images displayed on the display means, the process represented by the selected image is executed from among the application programs for executing the process specified by the received information. It is possible to cause an application program to execute predetermined processing.

  When the communication control unit receives a plurality of information, the communication control unit further controls the communication unit so as not to radiate the electromagnetic wave until one image is selected from the plurality of images displayed on the display unit. Can do.

  The information processing method of the present invention includes a detection step for detecting proximity or contact of a communication device, and a reception control step for controlling reception of information transmitted from the communication device for identifying processing to be executed by a communication means. And an execution control step for causing the application program for executing the process specified by the received information to execute the predetermined process, and an electromagnetic wave to start communication with the communication apparatus when the communication apparatus is detected. And a communication control step of controlling the communication means so as not to radiate electromagnetic waves when communication with the communication device is completed.

  The recording medium program of the present invention includes a detection step for detecting proximity or contact of a communication device, and reception control for controlling reception of information transmitted from the communication device for specifying processing to be executed by the communication means. In order to start communication with the communication device when a communication device is detected, and an execution control step that causes the application program for executing the step specified by the received information to execute the predetermined processing. And a communication control step of controlling the communication means so as to prevent the electromagnetic wave from being radiated when the communication means is controlled to radiate the electromagnetic wave and communication with the communication device is completed.

  The communication control program of the present invention includes a detection step for detecting proximity or contact of a communication device, and a reception control step for controlling reception of information transmitted from the communication device for specifying processing to be executed by a communication means. And an execution control step for causing the application program for executing the process specified by the received information to execute the predetermined process, and an electromagnetic wave to start communication with the communication apparatus when the communication apparatus is detected. And a communication control step of controlling the communication means so as not to radiate electromagnetic waves when communication with the communication device is completed.

  In the information processing apparatus of the present invention, the proximity or contact of the communication device is detected, the electromagnetic wave for communicating with the detected communication device is radiated, and the process to be executed transmitted from the communication device is specified. Information is received, and execution of a predetermined process is controlled by an application program for executing the process specified by the received information, and communication with the communication apparatus is started when a communication apparatus is detected. For this purpose, the communication means is controlled to radiate electromagnetic waves, and when the communication with the communication device is finished, the communication means is controlled not to radiate electromagnetic waves.

  In the information processing method, the recording medium, and the communication control program of the present invention, the proximity or contact of the communication device is detected, and the information transmitted from the communication device is received by the communication means for specifying the process to be executed. In order to start communication with the communication device when the execution of the predetermined processing is controlled and the communication device is detected by the application program for executing the processing specified by the received information, When the communication means is controlled to radiate electromagnetic waves and communication with the communication device is terminated, the communication means is controlled so as not to radiate electromagnetic waves.

  The recording device may be an independent device or a block that performs recording processing of the recording / reproducing device.

  According to the present invention, communication is possible. Further, according to the present invention, unnecessary radio waves can be prevented from being radiated. Furthermore, according to the present invention, a service desired by a user can be provided more easily.

  Embodiments of the present invention will be described below. The correspondence relationship between the invention described in this specification and the embodiments of the invention is exemplified as follows. This description is intended to confirm that the embodiments supporting the invention described in this specification are described in this specification. Therefore, although there is an embodiment which is described in the embodiment of the invention but is not described here as corresponding to the invention, it means that the embodiment is not It does not mean that it does not correspond to the invention. Conversely, even if an embodiment is described herein as corresponding to an invention, that means that the embodiment does not correspond to an invention other than the invention. Absent.

  Further, this description does not mean all the inventions described in this specification. In other words, this description is for the invention described in the present specification, which is not claimed in this application, that is, for the invention that will be applied for in the future or that will appear and be added by amendment. It does not deny existence.

  The information processing apparatus according to claim 1 includes a detection unit (for example, the detection apparatus 13 in FIG. 1) that detects the proximity or contact of a communication apparatus (for example, the IC card 11 in FIG. 1), and the detected communication apparatus. Communication means that radiates electromagnetic waves for communication with the communication device and receives information (for example, a service code recorded in the IC card 11 in FIG. 1) transmitted from the communication device for specifying the processing to be executed. (For example, the antenna 15 in FIG. 1), execution control means (for example, the execution control unit 111 in FIG. 3) for causing the application program for executing the process specified by the received information to execute a predetermined process, When a communication device is detected, in order to start communication with the communication device, the communication means is controlled to radiate the electromagnetic wave, and when communication with the communication device is terminated, the electromagnetic wave Communication control means for controlling the communication means so as not to radiation (e.g., controller 101 in FIG. 3), characterized in that it comprises a.

  The information processing apparatus according to claim 2 is configured such that the communication control unit (for example, the control unit 101 in FIG. 3) has a predetermined period after the proximity or contact of the communication apparatus (for example, the IC card 11 in FIG. 1) is detected. If the communication with the communication apparatus cannot be started even after the elapse of time, the communication means (for example, the antenna 15 in FIG. 1) is further controlled so as not to radiate the electromagnetic wave.

  When the information processing apparatus according to claim 3 receives a plurality of pieces of information (for example, the service code recorded in the IC card 11 of FIG. 1), the information processing apparatus represents each of the processes specified by the received information. The image processing apparatus further includes a display unit (for example, the display unit 32 in FIG. 3) for displaying an image, and the execution control unit (for example, the execution control unit 111 in FIG. 3) displays a plurality of pieces of information on the display unit. When one image is selected from a plurality of existing images, among application programs for executing processing specified by received information, an application program for executing processing represented by the selected image Processing is executed.

  In the information processing apparatus according to claim 4, the communication control unit (for example, the control unit 101 in FIG. 3) receives a plurality of pieces of information (for example, the service code recorded in the IC card 11 in FIG. 1). The communication means (for example, the antenna 15 in FIG. 1) is further prevented so as not to radiate electromagnetic waves until one image is selected from the plurality of images displayed on the display means (for example, the display unit 32 in FIG. 3). It is characterized by controlling.

  The information processing method according to claim 5 includes a detection step (for example, the process of step S31 in FIG. 7) for detecting the proximity or contact of the communication device (for example, the IC card 11 in FIG. 1), and transmission from the communication device. Reception control step for controlling reception by communication means (for example, antenna 15 in FIG. 1) of information (for example, service code recorded in IC card 11 in FIG. 1) for specifying processing to be executed. (For example, the process of step S56 in FIG. 8) and an execution control step for causing the application program for executing the process specified by the received information to execute a predetermined process (for example, the process of step S75 in FIG. 9). If a communication device is detected, the communication means is controlled to radiate electromagnetic waves in order to start communication with the communication device. If the signal has ended, characterized in that it comprises a communication control step of controlling the communication means so as not to radiate electromagnetic waves (e.g., processing or the processing in step S17 in step S12 in FIG. 6).

  Since the recording medium according to claim 6 and the communication control program according to claim 7 are basically the same processing as the information processing method according to claim 5 described above, they are repeated. Description is omitted.

  The present invention can be applied to an information processing system that transmits and receives data via a wireless communication network, an electronic money system using an IC card, a ticket gate system such as a railway, a PC built-in terminal, or a security system.

  Hereinafter, an embodiment to which the present invention is applied will be described with reference to the drawings.

  FIG. 1 is a diagram for explaining a radio communication system according to the present invention. The wireless communication system includes an IC card 11, a PC (Personal Computer) 12, a detection device 13 and a reader / writer 14 connected to the PC 12, and an antenna 15 connected to the reader / writer 14. Non-contact data transmission / reception is performed with the antenna 15 using electromagnetic waves.

  In addition, the detection device 13 and the reader / writer 14 are connected to the PC 12 via a predetermined interface such as USB (Universal Serial Bus), for example, with a cable that matches the specifications of the interface.

  The detection device 13 is disposed close to the antenna 15. The detection device 13 detects the IC card 11 disposed in the vicinity of the detection device 13 or the IC card 11 in contact with the detection device 13. That is, when the IC card 11 approaches or comes into contact with the detection device 13, the detection device 13 is disposed in the vicinity of the antenna 15 in order to wirelessly communicate with the reader / writer 14 (on the antenna 15. The IC card 11 is detected. The detection device 13 includes a start switch 31.

  The activation switch 31 of the detection device 13 is turned on when the IC card 11 approaches or contacts the detection device 13. When the activation switch 31 of the detection device 13 is turned on, the detection device 13 supplies a signal indicating that the IC card 11 has been detected to the PC 12.

  The activation switch 31 of the detection device 13 can be, for example, a mechanical switch, a switch using radio waves, sound waves, light, or the like, a switch using a magnetic field, or the like.

  For example, when the activation switch 31 of the detection device 13 is a mechanical switch, when the activation switch 31 of the detection device 13 is pressed and turned on by the IC card 11, the detection device 13 In order to wirelessly communicate with the reader / writer 14, the IC card 11 is detected over the antenna 15. Then, the detection device 13 supplies a signal indicating that the IC card 11 has been detected to the PC 12.

  Further, for example, when the activation switch 31 of the detection device 13 radiates (transmits) a signal such as a radio wave, a sound wave, or light and receives the radiated signal, the IC card 11 is disposed in the vicinity of the detection device 13. Thus, when the path of the transmitted signal is blocked and the transmitted signal is not received, the activation switch 31 of the detection device 13 is turned on, and the detection device 13 communicates the IC card 11 with the reader / writer 14 wirelessly. Therefore, the IC card 11 is detected as being held over the antenna 15.

  Further, for example, the activation switch 31 of the detection device 13 radiates (transmits) a signal such as a radio wave, a sound wave, or light, and the activation switch 31 of the detection device 13 radiates, and is in the vicinity of the detection device 13. When measuring the distance from the detection device 13 to the IC card 11 by receiving a signal reflected by the arranged IC card 11, the measured distance becomes smaller than a predetermined distance. The activation switch 31 of the detection device 13 is turned on, and the detection device 13 may detect the IC card 11 as the IC card 11 held over the antenna 15 for wireless communication with the reader / writer 14.

  Furthermore, when the IC card 11 generates a magnetic field and the activation switch 31 of the detection device 13 detects the magnetic field generated by the IC card 11, the activation switch 31 of the detection device 13 is turned on. Then, the detection device 13 may detect the IC card 11 as the IC card 11 held over the antenna 15 in order to wirelessly communicate with the reader / writer 14.

  When the signal indicating that the IC card 11 has been detected is supplied from the detection device 13, the PC 12 activates a predetermined program for controlling the reader / writer 14 and executes the activated program. Thus, the reader / writer 14 is controlled.

  The PC 12 generates a signal instructing execution of polling so that the connected reader / writer 14 can communicate with the IC card 11. The PC 12 supplies the generated signal for instructing execution of polling to the reader / writer 14. The PC 12 includes a display unit 32 including a display. The PC 12 displays various images on the display unit 32 of the PC 12.

  When a signal instructing the execution of polling is supplied from the PC 12, the reader / writer 14 radiates electromagnetic waves (radio waves) to the connected antenna 15 by operating each part of the reader / writer 14 to generate a magnetic field. , Polling. When the reader / writer 14 performs polling to detect the IC card 11, the reader / writer 14 and the IC card 11 perform authentication processing as necessary, and cause the antenna 15 to transmit / receive predetermined data. To start communication.

  That is, the IC card 11 communicates between the IC card 11 and the reader / writer 14 so that the service code for specifying the service received by the IC card 11 from the reader / writer 14 (PC 12) is applied to the antenna 15 by wireless communication. Send to. Here, the service code is information for specifying a predetermined service provided by the user from the PC 12, such as a payment process using electronic money or a railway ticketing process.

  The antenna 15 receives the service code transmitted from the IC card 11 and supplies the received service code to the reader / writer 14. The reader / writer 14 supplies the service code supplied from the antenna 15 to the PC 12. When the service code is supplied from the reader / writer 14, the PC 12 starts an application program for executing necessary processing to provide the service specified by the supplied service code, and causes the reader / writer 14 to operate. Control and let the process run.

  That is, the PC 12 has recorded in advance a service code for specifying a service that can be provided to the user who owns the IC card 11, and is supplied when the service code is supplied from the reader / writer 14. An application program for providing a service specified by the same service code as the service code recorded in advance among the service codes is activated.

  If there are a plurality of service codes supplied from the reader / writer 14 that are the same as the service codes recorded in advance, the PC 12 displays image data of an icon (image) representing the service specified by the service code. The icon is displayed on the display unit 32 of the PC 12 based on the above. When one of the plurality of icons displayed on the display unit 32 of the PC 12 is selected by the user of the IC card 11 (owner of the IC card 11), the PC 12 indicates the selected icon. An application program for providing a service is activated to control the reader / writer 14 and execute a process necessary for providing the service.

  The IC card 11 and the reader / writer 14 each transmit and receive data, and provide a service or receive a service. When this process is completed, the PC 12 stops the operation of each part of the reader / writer 14 so as not to radiate radio waves from the antenna 15.

  FIG. 2 is a block diagram illustrating an example of the configuration of the PC 12. A CPU (Central Processing Unit) 51 executes various processes according to a program recorded in a ROM (Read Only Memory) 52 or a recording unit 58. A RAM (Random Access Memory) 53 appropriately stores programs executed by the CPU 51 and data. The CPU 51, ROM 52, and RAM 53 are connected to each other by a bus 54.

  An input / output interface 55 is also connected to the CPU 51 via the bus 54. Connected to the input / output interface 55 are an input unit 56 made up of a keyboard, mouse, switch, etc., an output unit 57 made up of a speaker, a lamp, etc., a display unit 32 made up of a display, the detection device 13 and the reader / writer 14. The CPU 51 executes various processes in response to instructions input from the input unit 56. When the signal indicating that the IC card 11 is detected is supplied from the detection device 13, the CPU 51 activates a predetermined program and controls the reader / writer 14 by executing the activated program.

  The recording unit 58 connected to the input / output interface 55 is composed of, for example, a hard disk and records programs executed by the CPU 51 and various data. The communication unit 59 communicates with an external device via a communication network such as the Internet or other networks.

  The communication unit 59 may acquire a program via a communication network and cause the recording unit 58 to record the acquired program.

  The drive 60 connected to the input / output interface 55 drives the magnetic disk 81, the optical disk 82, the magneto-optical disk 83, or the semiconductor memory 84 when they are mounted, and programs and data recorded there. Get etc. The acquired program and data are transferred to the recording unit 58 and recorded as necessary.

  FIG. 3 is a block diagram illustrating a functional configuration of the PC 12. In the figure, portions corresponding to those in the case of FIG. 2 are denoted by the same reference numerals and repeated, and therefore, the description thereof is omitted as appropriate.

  The PC 12 is configured to include a display unit 32, an input unit 56, a recording unit 58, and a control unit 101.

  The control unit 101 is realized by the CPU 51 that executes a program. When a signal indicating that the IC card 11 is detected is supplied from the detection device 13, the control unit 101 generates a signal instructing execution of polling, and executes the generated polling Is supplied to the reader / writer 14.

  When the response signal received by the antenna 15 is supplied from the antenna 15 via the reader / writer 14, the control unit 101 obtains a service code that identifies the service in order to execute processing for providing the service. A signal for instructing acquisition of the generated service code is supplied to the reader / writer 14. Here, the response signal is a signal transmitted from the IC card 11 in response to polling processing performed by the reader / writer 14.

  When the service code is supplied from the reader / writer 14, the control unit 101 detects the same service code as the service code recorded in advance in the recording unit 58 from the supplied service code.

  The control unit 101 includes an execution control unit 111. The execution control unit 111 of the control unit 101 activates an application program that executes a process for providing a user with a service specified by the service code detected by the control unit 101.

  The execution control unit 111 of the control unit 101 records the service code that is the same as the service code recorded in advance in the recording unit 58 among the supplied service codes, that is, the control unit 101 records the service code. When one service code identical to the service code recorded in advance in the unit 58 is detected, an application program for executing a process for providing a service specified by the detected service code is started.

  When the application program is activated, the execution control unit 111 of the control unit 101 executes the application program to control the reader / writer 14 and execute processing necessary for providing the service. The execution control unit 111 of the control unit 101 generates a signal instructing execution of processing necessary for providing a service, and supplies the reader / writer 14 with a signal instructing execution of the generated processing.

  The control unit 101 is supplied with a plurality of service codes, and the supplied service code is the same (matching) with any one of the plurality of service codes recorded in advance in the recording unit 58. When there are a plurality of service codes, that is, when a plurality of service codes that match one of the plurality of service codes recorded in advance in the recording unit 58 among the plurality of supplied service codes are detected. The image data of the icon representing the service specified by the service code obtained is acquired from the recording unit 58, and the acquired image data is supplied to the display unit 32.

  When the input signal specifying the service is supplied from the input unit 56, the execution control unit 111 of the control unit 101 executes a process for providing the user with the service specified by the supplied input signal. Start the application program.

  When the application program is activated, the execution control unit 111 of the control unit 101 executes the application program to control the reader / writer 14 and execute processing necessary for providing the service. The execution control unit 111 of the control unit 101 generates a signal instructing execution of processing necessary for providing the service specified by the input signal to the user, and reads the signal instructing execution of the generated processing as a reader. Supplied to the writer 14.

  When a signal indicating that the processing has been completed is supplied from the reader / writer 14 or a signal instructing the reader / writer 14 to execute polling, the control unit 101 reads the reader / writer even if a predetermined period has elapsed. When the response signal is not supplied from 14, the IC card 11 and the reader / writer 14 do not communicate with each other. Therefore, a signal instructing to stop the radiation of the radio wave is generated, and the signal instructing to stop the radiation of the generated radio wave is transmitted to the reader. Supplied to the writer 14.

  In addition, the control unit 101 supplies data supplied from the reader / writer 14 or data generated by the control unit 101 to the recording unit 58.

  The recording unit 58 records a service code, image data for displaying an icon representing a service, and data necessary for various processes. The recording unit 58 supplies the control unit 101 with image data for displaying the recorded icon and data necessary for various processes. The recording unit 58 records data supplied from the control unit 101.

  When the user of the IC card 11 selects (designates) an icon representing a service displayed on the display unit 32 by operating the input unit 56, the input unit 56 designates the service according to the operation. An input signal is supplied to the control unit 101. Here, the input signal designating the service includes, for example, a service code for specifying the service represented by the icon selected by the user.

  The display unit 32 displays an icon representing a service based on the image data supplied from the control unit 101 for displaying the icon. The display unit 32 displays a predetermined image based on the image data supplied from the control unit 101.

  FIG. 4 is a block diagram illustrating a functional configuration of the reader / writer 14.

  The reader / writer 14 is configured to include an input / output interface 121, a control unit 122, a recording unit 123, an SPU (Signal Processing Unit) 124, an oscillation circuit 125, a modulation unit 126, and a demodulation unit 127.

  The input / output interface 121 is connected to the PC 12 and stops the signal supplied from the PC 12 for performing polling, a signal for instructing acquisition of a service code, a signal for instructing execution of processing, or radio wave radiation. An instructing signal is supplied to the control unit 122.

  The input / output interface 121 supplies the PC 12 with a response signal, a service code, or a signal indicating that the process has been completed.

  When a signal instructing execution of polling is supplied from the input / output interface 121, the control unit 122 operates the SPU 124, the modulation unit 126, and the demodulation unit 127 and generates radio waves for communication with the IC card 11 from the antenna 15. Radiate. Then, the control unit 122 generates a detection signal for detecting the IC card 11 at a predetermined time interval, and supplies the generated detection signal to the SPU 124. The control unit 122 generates detection signals at predetermined time intervals until a response signal is supplied from the SPU 124 or a signal for instructing to stop radio wave emission is supplied from the input / output interface 121. Continue supplying signals to SPU 124.

  When the response signal or service code is supplied from the SPU 124, the control unit 122 supplies the supplied response signal or service code to the input / output interface 121.

  When a signal instructing acquisition of a service code is supplied from the input / output interface 121, the control unit 122 generates a transmission request signal for requesting transmission of the service code, and supplies the generated transmission request signal to the SPU 124. .

  When a signal for instructing execution of processing is supplied from the input / output interface 121, the control unit 122 performs processing instructed to execute. That is, the control unit 122 acquires predetermined data from the recording unit 123 as necessary, and supplies the acquired data or a command for causing the IC card 11 to execute predetermined processing to the SPU 124. In addition, the control unit 122 supplies data supplied from the SPU 124 to the recording unit 123 as necessary.

  When the process instructed by the PC 12 is completed, the control unit 122 generates a signal indicating that the process is completed, and supplies the input / output interface 121 with a signal indicating that the generated process is completed. When the control unit 122 is supplied with a signal for instructing to stop radio wave radiation from the input / output interface 121, the control unit 122 stops the operation of the SPU 124, the modulation unit 126, and the demodulation unit 127 so that the radio wave is not radiated from the antenna 15. Let me.

  When a program or data is supplied from the input / output interface 121, the control unit 122 supplies the supplied program or data to the recording unit 123 as necessary, and reads and reads the program recorded in the recording unit 123. Run the program.

  The recording unit 123 is formed of a so-called non-volatile storage medium or recording medium that can be rewritten and can retain the recorded contents even when the power is turned off. The recording unit 123 records various data. The recording unit 123 supplies the recorded data to the control unit 122. The recording unit 123 records the data supplied from the control unit 122.

  The SPU 124 encodes the detection signal supplied from the control unit 122, a transmission request signal for requesting transmission of a service code, data, or a command by a predetermined method, and encodes the encoded detection signal, transmission request signal, data, or The command is supplied to the modulation unit 126. The SPU 124 decodes the response signal, service code, or data supplied from the demodulator 127 by a method corresponding to the response signal, service code, or data encoding method, and the decoded response signal, service code, Alternatively, the data is supplied to the control unit 122.

  For example, when a command to be transmitted to the IC card 11 is supplied from the control unit 122, the SPU 124 performs an encoding process such as coding on a Manchester code on the command, and a signal obtained thereby. Is output to the modulation unit 126. In addition, when data from the IC card 11 is supplied from the demodulator 127, the SPU 124 performs a decoding process such as Manchester code decoding on the data, and controls the signal obtained thereby. To the unit 122.

  The modulation unit 126 generates a carrier wave based on a clock signal having a predetermined frequency supplied from the oscillation circuit 125. The modulation unit 126 generates a detection signal, a transmission request signal, data, or a command that is modulated by modulating the detection signal, transmission request signal, data, or command supplied from the SPU 124 according to a predetermined method, based on the carrier wave, The modulated detection signal, transmission request signal, data or command is supplied to the antenna 15.

  For example, the modulation unit 126 generates a detection signal modulated by changing the phase, amplitude, frequency, etc. of the carrier wave based on the detection signal supplied from the SPU 124.

  More specifically, for example, the modulation unit 126 performs ASK (Amplitude Shift Keying) modulation on data (or signal) supplied from the SPU 124 using a clock signal having a frequency of 13.56 MHz supplied from the oscillation circuit 125 as a carrier wave. The generated modulated wave is output from the antenna 15 as an electromagnetic wave.

  The oscillation circuit 125 generates a reference clock signal having a predetermined frequency, and supplies the generated clock signal to the modulation unit 126.

  The demodulation unit 127 demodulates the response signal, service code, or data supplied from the antenna 15 by a demodulation method corresponding to the modulation method of the modulation unit 148 (FIG. 5), and demodulates the response signal, service code, or data. Is supplied to the SPU 124. For example, the demodulator 127 demodulates the modulated wave (ASK modulated wave) acquired via the antenna 15 and outputs the demodulated response signal, service code, or data to the SPU 124.

  The antenna 15 transmits the detection signal, transmission request signal, data, or command supplied from the modulation unit 126 to the IC card 11 by wireless communication. That is, for example, the antenna 15 radiates (radiates) a radio wave for transmitting a detection signal, a transmission request signal, data, or a command supplied from the modulation unit 126. The antenna 15 receives the response signal, service code, or data transmitted from the IC card 11 and supplies the received response signal, service code, or data to the demodulator 127.

  FIG. 5 is a block diagram showing a functional configuration of the IC card 11.

  The IC card 11 is configured to include an antenna 141, a demodulation unit 142, an SPU 143, a control unit 144, a recording unit 145, a RAM 146, an oscillation circuit 147, a modulation unit 148, and a power generation unit 149.

  The antenna 141 receives the detection signal, transmission request signal, data or command transmitted from the antenna 15 and supplies the received detection signal, transmission request signal, data or command to the demodulation unit 142. Further, the antenna 141 transmits the response signal, service code, or data supplied from the modulation unit 148 to the antenna 15 by wireless communication. That is, for example, the antenna 141 radiates radio waves for transmitting data supplied from the modulation unit 148. Further, in the antenna 141, resonance occurs due to radio waves having a predetermined frequency radiated from the antenna 15, and electromotive force is generated.

  The demodulation unit 142 demodulates the detection signal, transmission request signal, data, or command supplied from the antenna 141 using a demodulation method corresponding to the modulation method of the modulation unit 126 (FIG. 4), and demodulates the detection signal and transmission request signal. , Supply data or commands to the SPU 143. For example, the demodulator 142 performs envelope detection on a command that is an ASK modulated wave received via the antenna 141, demodulates the command, and outputs the demodulated command to the SPU 143.

  The SPU 143 decodes the detection signal, transmission request signal, data, or command supplied from the demodulation unit 142 by a predetermined method, and supplies the decoded detection signal, transmission request signal, data, or command to the control unit 144.

  The SPU 143 encodes the response signal, service code, or data supplied from the control unit 144 by a predetermined encoding method, and supplies the encoded response signal, service code, or data to the modulation unit 148. For example, when the command demodulated by the demodulation unit 142 is encoded by the Manchester method, the SPU 143 decodes the command (Manchester) based on a clock signal supplied from a PLL (Phase Locked Loop) circuit (not shown). Code decoding), and supplies the decoded command to the control unit 144. For example, the SPU 143 encodes the data supplied from the control unit 144 using the Manchester method, and supplies the encoded data to the modulation unit 148.

  When the detection signal is supplied from the SPU 143, the control unit 144 generates a response signal and supplies the generated response signal to the SPU 143. Here, the response signal includes, for example, an identification code, which is information for specifying the IC card 11.

  When the transmission request signal is supplied from the SPU 143, the control unit 144 acquires a service code from the recording unit 145 and supplies the acquired service code to the SPU 143.

  Based on the data or commands supplied from the SPU 143, the control unit 144 executes predetermined processing necessary for the user to receive a service from the reader / writer 14 (PC 12). For example, the control unit 144 records the data supplied from the SPU 143 in a predetermined recording area of the recording unit 145. Further, for example, the control unit 144 executes a command supplied from the SPU 143, acquires data recorded in a predetermined recording area of the recording unit 145, and supplies the acquired data to the SPU 143.

  The control unit 144 reads a program recorded in the recording unit 145 as necessary, and executes the read program. The control unit 144 supplies data to the RAM 146 as necessary. In addition, the control unit 144 acquires data temporarily stored in the RAM 146 as necessary.

  The recording unit 145 includes, for example, a flash memory, an EEPROM (Electrically Erasable Programmable Read Only Memory), an MRAM (Magnetoresistive Random Access Memory), or a nonvolatile memory such as FeRAM (ferroelectric memory). Various data such as data transmitted to the reader / writer 14 (antenna 15) are recorded. The recording unit 145 records a service code that identifies a service that the user can receive from the reader / writer 14.

  The recording unit 145 supplies the recorded service code or data to the control unit 144. The recording unit 145 records the data supplied from the control unit 144 under the control of the control unit 144.

  When the control unit 144 performs various processes, the RAM 146 temporarily stores data during the process. The RAM 146 supplies the stored data to the control unit 144.

  The oscillation circuit 147 generates a clock signal having the same frequency as that of the detection signal, transmission request signal, data, or command received by the antenna 141, and supplies the generated clock signal to the modulation unit 148. For example, the oscillation circuit 147 includes a PLL circuit and generates a clock signal having the same frequency as the clock frequency of the command.

  The modulation unit 148 generates a carrier wave based on a clock signal having a predetermined frequency supplied from the oscillation circuit 147. The modulation unit 148 generates a modulated response signal, service code, or data by modulating the response signal, service code, or data supplied from the SPU 143 based on the carrier wave by a predetermined method, and modulates the response signal, service code, or data. A response signal, a service code, or data is supplied to the antenna 141. For example, the modulation unit 148 further performs ASK modulation on data encoded by the Manchester method supplied from the SPU 143, and transmits the modulated data to the antenna 15 via the antenna 141.

  Further, for example, the modulation unit 148 turns on and off a predetermined switching element (not shown) for data supplied from the SPU 143, and applies a predetermined load to the antenna 141 only when the switching element is in an on state. Are connected in parallel to change the load of the antenna 141. The ASK-modulated data is transmitted to the antenna 15 via the antenna 141 due to the load variation of the antenna 141 (the terminal voltage of the antenna 15 connected to the reader / writer 14 is varied).

  The power generation unit 149 generates DC power based on the AC electromotive force generated in the antenna 141 and supplies the generated DC power to each part of the IC card 11.

  Next, with reference to the flowchart of FIG. 6, response processing by the detection device 13, the PC 12, and the reader / writer 14 will be described.

  In step S11, the detection device 13 and the PC 12 perform detection processing. Although details of the detection process will be described later, in the detection process, the detection device 13 detects the IC card 11 held over the antenna 15, and the PC 12 performs polling when the IC card 11 is detected. A signal for instructing execution is generated, and a signal for instructing execution of the generated polling is supplied to the reader / writer 14.

  In step S12, the reader / writer 14 performs polling. For example, the control unit 122 operates the SPU 124, the modulation unit 126, and the demodulation unit 127. Then, the control unit 122 generates a detection signal for detecting the IC card 11 and supplies the generated detection signal to the SPU 124. At this time, the control unit 122 generates detection signals at predetermined time intervals until a response signal is supplied from the SPU 124 or a signal instructing to stop radio wave radiation is supplied from the input / output interface 121. The generated detection signal is continuously supplied to the SPU 124.

  The SPU 124 encodes the detection signal supplied from the control unit 122 by, for example, an encoding method such as the Manchester method, and supplies the encoded detection signal to the modulation unit 126.

  Based on a carrier wave having a predetermined frequency (for example, 13.56 MHz) corresponding to the clock signal supplied from the oscillation circuit 125, the modulation unit 126 converts the detection signal supplied from the SPU 124 into, for example, an ASK method, PSK (Phase Modulation is performed by a modulation method such as a shift keying (FSK) method or a frequency shift keying (FSK) method, and the modulated detection signal is supplied to the antenna 15. The antenna 15 transmits the detection signal supplied from the modulation unit 126 to the IC card 11 by wireless communication.

  Further, when a response signal is transmitted from the IC card 11, the antenna 15 receives the response signal transmitted from the IC card 11 and supplies the received response signal to the demodulator 127. The demodulation unit 127 demodulates the response signal supplied from the antenna 15 by a demodulation method corresponding to the modulation method of the modulation unit 148 (FIG. 5), and supplies the demodulated response signal to the SPU 124.

  The SPU 124 decodes the response signal supplied from the demodulation unit 127 by a decoding method corresponding to the encoding method of the SPU 143 (FIG. 5), and supplies the decoded response signal to the control unit 122. Then, the control unit 122 supplies the response signal supplied from the SPU 124 to the PC 12 via the input / output interface 121.

  In step S13, the control unit 101 determines whether the antenna 15 has received a response signal. For example, in step S <b> 13, the control unit 101 determines whether the antenna 15 has received the response signal based on whether the response signal is supplied from the reader / writer 14.

  If it is determined in step S13 that the antenna 15 has not received a response signal, the process proceeds to step S14, and the control unit 101 supplies a signal instructing the reader / writer 14 to execute polling, and then performs a predetermined process. It is determined whether or not the period has elapsed. For example, in step S <b> 14, the control unit 101 determines whether or not 3 seconds have elapsed since the reader / writer 14 was supplied with a signal instructing execution of polling.

  If it is determined in step S14 that a predetermined period has not elapsed since the signal for instructing the reader / writer 14 to perform polling has been passed, polling is continued, and the process returns to step S12. At this time, for example, the control unit 101 acquires predetermined image data from the recording unit 58 and supplies the acquired image data to the display unit 32, so that the display unit 32 can “close the IC card. An error message such as “Cannot read data” may be displayed.

  On the other hand, if it is determined in step S14 that the predetermined period has elapsed since the signal for instructing the polling to be executed is supplied to the reader / writer 14, the reader / writer 14 could not detect the IC card 11, Advances to step S17.

  If it is determined in step S13 that the antenna 15 has received the response signal, the reader / writer 14 starts communication with the IC card 11. Therefore, the process proceeds to step S15, where the reader / writer 14 Perform reception processing. Although details of the service code reception process will be described later, in the service code reception process, the antenna 15 receives the service code transmitted from the IC card 11 and sends the received service code to the reader / writer 14. Supply. Then, the reader / writer 14 supplies the service code supplied from the antenna 15 to the PC 12.

  In step S16, the PC 12 and the reader / writer 14 perform a service execution process. Although details of the service execution process will be described later, in the service execution process, the reader / writer 14 transmits / receives data to / from the IC card 11 and executes a process necessary for providing the service. When the process is completed, the reader / writer 14 generates a signal indicating that the process has been completed, and supplies the PC 12 with a signal indicating that the generated process has been completed.

  In step S17, since the communication with the IC card 11 of the reader / writer 14 has been completed (or the communication with the IC card 11 has failed), the control unit 101 generates a signal instructing to stop the transmission of radio waves, A signal instructing to stop transmission of the generated radio wave is supplied to the reader / writer 14. The input / output interface 121 supplies the control unit 122 with a signal instructing to stop transmission of the radio wave supplied from the PC 12.

  In step S18, the control unit 122 stops the operations of the SPU 124, the modulation unit 126, and the demodulation unit 127 so that the antenna 15 does not radiate (transmit) radio waves, and returns to step S11 to perform the above-described processing. repeat.

  In this way, the detection device 13 detects the IC card 11, and the reader / writer 14 performs polling. In addition, the PC 12 supplies a signal for instructing the reader / writer 14 to execute polling, and a response signal has not been supplied even after a predetermined period of time has passed, or communication between the reader / writer 14 and the IC card 11 is not performed. When finished, the antenna 15 is prevented from radiating radio waves.

  In this way, by performing polling after the IC card 11 is detected, unnecessary radio waves can be prevented from being radiated.

  In addition, after supplying a signal for instructing the reader / writer 14 to perform polling, a response signal has not been supplied even after a predetermined period of time has elapsed, or when communication between the reader / writer 14 and the IC card 11 ends. By preventing the antenna 15 from radiating radio waves, unnecessary radio waves can be prevented from being radiated. Accordingly, it is possible to prevent other devices (for example, the PC 12) performing wireless communication around the antenna 15 from being interrupted due to the influence of radio waves radiated from the antenna 15 and being unable to communicate.

  That is, in more detail, only when communicating with the IC card 11, the radio wave radiated from the antenna 15 causes the radio wave radiated from the antenna 15 to cause a communication failure in other communication systems around the antenna 15. Can be made shorter. Thereby, in another communication system, the time for which communication is interrupted can be further shortened, and an environment where reconnection is possible can be achieved.

  Furthermore, by detecting the IC card 11 in the detection device 13, the user receives a desired service only by a simple operation (operation) of holding the IC card 11 over the antenna 15 (with one action). be able to.

  Next, a detection process corresponding to the process of step S11 of FIG. 6 will be described with reference to the flowchart of FIG.

  In step S31, the detection device 13 determines whether or not the start switch 31 of the detection device 13 is turned on. For example, when the activation switch 31 of the detection device 13 is a mechanical switch, in step S31, the detection device 13 determines whether or not the activation switch 31 of the detection device 13 is pressed by the IC card 11. Thus, it is determined whether the start switch 31 of the detection device 13 is turned on.

  If it is determined in step S31 that the activation switch 31 of the detection device 13 is not turned on, the IC card 11 is not held over the antenna 15 (the IC card 11 is not detected). The determination process is repeated until it is determined that the start switch 31 is turned on.

  On the other hand, if it is determined in step S31 that the activation switch 31 of the detection device 13 has been turned on, the IC card 11 has been detected, so the process proceeds to step S32, and the detection device 13 indicates that the IC card 11 has been detected. A signal is generated, and a signal indicating that the generated IC card 11 has been detected is supplied to the PC 12.

  Since the signal indicating that the IC card 11 has been detected is supplied from the detection device 13, in step S33, the control unit 101 generates a signal for instructing execution of polling, and a signal for instructing execution of the generated polling Is supplied to the reader / writer 14. The input / output interface 121 supplies a signal instructing execution of polling supplied from the PC 12 to the control unit 122, and the process ends.

  At this time, since a signal instructing execution of polling is supplied from the input / output interface 121, the control unit 122 operates the SPU 124, the modulation unit 126, and the demodulation unit 127 in order to perform polling. Polling is performed by radiating radio waves for communication with the IC card 11 (processing in step S12 in FIG. 6).

  In this way, the detection device 13 detects the IC card 11, and the PC 12 causes the reader / writer 14 to poll in order to communicate with the detected IC card 11.

  As described above, the polling is performed after the IC card 11 is detected by the detection device 13, so that unnecessary radio waves can be prevented from being radiated.

  A service code reception process corresponding to the process of step S15 of FIG. 6 will be described with reference to the flowchart of FIG.

  In step S <b> 51, the control unit 101 generates a signal instructing acquisition of the service code recorded in the IC card 11, and supplies a signal instructing acquisition of the generated service code to the reader / writer 14. The input / output interface 121 supplies the control unit 122 with a signal supplied from the PC 12 and instructing acquisition of the service code.

  Since a signal instructing acquisition of the service code is supplied from the input / output interface 121, in step S52, the control unit 122 generates a transmission request signal for requesting transmission of the service code, and the generated transmission request signal. Is supplied to the SPU 124.

  In step S <b> 53, the SPU 124 encodes the transmission request signal supplied from the control unit 122 by a predetermined encoding method, and supplies the encoded transmission request signal to the modulation unit 126. For example, in step S <b> 53, the SPU 124 encodes the transmission request signal supplied from the control unit 122 by an encoding method such as the Manchester method, and supplies the encoded transmission request signal to the modulation unit 126.

  In step S <b> 54, the modulation unit 126 modulates the transmission request signal supplied from the SPU 124 and supplies the modulated transmission request signal to the antenna 15. For example, in step S54, the modulation unit 126 receives the transmission request signal supplied from the SPU 124 based on a carrier wave having a predetermined frequency (for example, 13.56 MHz) corresponding to the clock signal supplied from the oscillation circuit 125. It modulates by the method of. The modulation unit 126 supplies the modulated transmission request signal to the antenna 15.

  More specifically, for example, in step S54, the modulation unit 126 modulates the transmission request signal by a modulation method such as an ASK method, a PSK method, or an FSK method, and supplies the modulated transmission request signal to the antenna 15.

  In step S55, the antenna 15 transmits the transmission request signal supplied from the modulation unit 126 to the IC card 11 by wireless communication. For example, in step S55, the antenna 15 transmits a transmission request signal by radiating a radio wave that transmits the transmission request signal supplied from the modulation unit 126.

  When the transmission request signal is transmitted to the IC card 11, the service code is transmitted from the IC card 11. Therefore, in step S56, the antenna 15 receives and receives the service code transmitted from the IC card 11. The service code is supplied to the reader / writer 14.

  In step S57, the demodulation unit 127 demodulates the service code supplied from the antenna 15 using a demodulation method corresponding to the modulation method of the modulation unit 148 (FIG. 5), and supplies the demodulated service code to the SPU 124.

  In step S <b> 58, the SPU 124 decodes the service code supplied from the demodulation unit 127 using a decoding method corresponding to the encoding method of the SPU 143 (FIG. 5), and supplies the decoded service code to the control unit 122.

  In step S59, the control unit 122 supplies the service code supplied from the SPU 124 to the PC 12 via the input / output interface 121, and the process ends. That is, in step S59, the control unit 122 supplies the service code supplied from the SPU 124 to the input / output interface 121. The input / output interface 121 supplies the service code supplied from the control unit 122 to the PC 12.

  In this way, the reader / writer 14 generates a transmission request signal for requesting transmission of the service code recorded in the IC card 11, and transmits the generated transmission request signal to the IC card 11 by wireless communication. To do. The antenna 15 receives the service code transmitted from the IC card 11 and supplies the received service code to the PC 12 via the reader / writer 14.

  Thus, by receiving the service code, the PC 12 can identify the service that the user is going to receive.

  With reference to the flowchart of FIG. 9, the service execution process corresponding to the process of step S16 of FIG. 6 will be described.

  Since the service code is supplied from the reader / writer 14, in step S <b> 71, the control unit 101 receives the same service code as the service code recorded in advance by the recording unit 58 among the service codes supplied from the reader / writer 14. It is determined whether or not there are a plurality.

  For example, the recording unit 58 records the service code B1, the service code B2, and the service code B3. When the service code B2 and the service code B3 are supplied from the reader / writer 14, the recording unit 58 records. The service code B2 and the service code B2 supplied from the reader / writer 14 are the same, and the service code B3 recorded by the recording unit 58 and the service code B3 supplied from the reader / writer 14 are the same. Therefore, the control unit 101 determines that among the service codes supplied from the reader / writer 14, there are a plurality of service codes that are the same as the service codes recorded in advance by the recording unit 58.

  If it is determined in step S71 that the service code supplied from the reader / writer 14 includes a plurality of service codes identical to the service codes recorded in advance by the recording unit 58, the service to be provided cannot be specified. In step S72, the control unit 101 acquires image data of an icon representing a service specified by the same service code as the service code recorded in advance by the recording unit 58 from the recording unit 58, and acquires the acquired image data. Is supplied to the display unit 32. The display unit 32 displays an icon representing a service based on the image data supplied from the control unit 101.

  For example, when the service code B2 and the service code B3 among the service codes supplied from the reader / writer 14 are the same service codes as those recorded in advance by the recording unit 58, the control unit 101 The image data D2 of the icon A2 representing the service specified by the code B2 and the image data D3 of the icon A3 representing the service specified by the service code B3 are acquired from the recording unit 58, and the acquired image data D2 and image data D3 are acquired. Is supplied to the display unit 32. Then, the display unit 32 displays the icon A2 and the icon A3 based on the image data D2 and the image data D3 supplied from the control unit 101.

  In step S <b> 73, the control unit 101 determines whether the service provided by the PC 12 has been selected by the user of the IC card 11. For example, in step S <b> 73, when the user of the IC card 11 selects an icon displayed on the display unit 32 by operating the input unit 56, the control unit 101 inputs input from the input unit 56. Based on the signal, it is determined whether or not a service provided by the PC 12 has been selected.

  If it is determined in step S73 that no service has been selected, no service has been selected, so the process returns to step S73, and the determination process is repeated until it is determined that a service has been selected. If it is determined in step S73 that the service has not been selected even after a predetermined period of time has passed, characters such as “Please select a service” are displayed on the display unit 32, or the processing from step S74 is performed. The process of step S77 may be skipped and the process may proceed to step S17 (FIG. 6) to prevent the antenna 15 from radiating radio waves.

  Further, when the antenna 15 receives the service code transmitted from the IC card 11, the PC 12 controls the reader / writer 14 so that the antenna 15 does not radiate radio waves, and after the service is selected in the process of step S73. The PC 12 may control the reader / writer 14 so that the antenna 15 radiates radio waves again.

  On the other hand, if it is determined in step S73 that the service has been selected, the service to be provided has been selected, and the process proceeds to step S74.

  If it is determined in step S71 that there are not a plurality of service codes identical to the service codes recorded in advance by the recording unit 58, the service provided by the PC 12 is specified, and the process proceeds to step S74. Even when it is determined in step S71 that there are not a plurality of service codes that are the same as the service codes recorded in advance by the recording unit 58, an icon representing the service is displayed on the display unit 32, and the icon is displayed. You may make it progress to step S74 after selecting.

  In step S74, the execution control unit 111 of the control unit 101 activates an application program that causes a process for providing the specified (selected) service to be executed.

  For example, in step S74, the execution control unit 111 of the control unit 101 acquires an application program for executing processing for providing the specified (selected) service from the recording unit 58, and executes the acquired application program By doing so, the application program is started.

  When the application program is activated, in step S75, the execution control unit 111 of the control unit 101 generates a signal instructing execution of a process necessary for providing the specified (selected) service, and executes the generated process. Is supplied to the reader / writer 14. Then, the input / output interface 121 supplies the control unit 122 with a signal supplied from the PC 12 and instructing execution of processing.

  For example, when the user of the IC card 11 operates the input unit 56 and selects the icon A1 displayed on the display unit 32, in step S75, the execution control unit 111 of the control unit 101 selects the selected icon. A signal instructing execution of a predetermined process necessary for providing the service represented by A1 is generated, and a signal instructing execution of the generated process is supplied to the reader / writer 14.

  Since the signal instructing execution of the process is supplied from the input / output interface 121, in step S76, each unit of the reader / writer 14 executes the predetermined process specified by the signal instructing execution of the supplied process. To do.

  For example, in step S76, the control unit 122 acquires predetermined data from the recording unit 123 as necessary, and supplies the acquired data or a command for causing the IC card 11 to execute predetermined processing to the SPU 124. The SPU 124 encodes the data or command supplied from the control unit 122 by, for example, the Manchester method, and supplies the encoded data or command to the modulation unit 126. Then, the modulation unit 126 modulates the data or command supplied from the SPU 124 using, for example, an ASK modulation method, and supplies the modulated data or command to the antenna 15. The antenna 15 transmits the data or command supplied from the modulation unit 126 to the IC card 11 by wireless communication.

  For example, in step S76, when data is transmitted from the IC card 11, the antenna 15 receives the transmitted data and supplies the received data to the reader / writer 14. The demodulation unit 127 demodulates the data supplied from the antenna 15 by a demodulation method corresponding to the modulation method of the modulation unit 148 (FIG. 5), and supplies the demodulated data to the SPU 124. Further, the SPU 124 decodes the data supplied from the demodulator 127 by a decoding method corresponding to the encoding method of the SPU 143 (FIG. 5), and supplies the decoded data to the control unit 122. Then, the control unit 122 supplies the data supplied from the SPU 124 to the recording unit 123 or supplies it to the PC 12 via the input / output interface 121 as necessary.

  In step S77, when the process necessary for providing the service to the user is completed, the control unit 122 generates a signal indicating that the process is completed, and outputs a signal indicating that the generated process is completed to the input / output interface 121. To supply. Then, the input / output interface 121 supplies the PC 12 with a signal indicating that the process has been completed, which is supplied from the control unit 122, and the process ends.

  In this way, the PC 12 displays an image representing the service as needed based on the service code from the IC card 11 and identifies the service to be provided. Then, the PC 12 supplies the reader / writer 14 with a signal instructing execution of processing for providing the specified service. The reader / writer 14 executes a predetermined process specified by a signal instructing execution of the supplied process.

  In addition, although it demonstrated that the icon showing a service was displayed, not only an icon but the character etc. which show a service can also be displayed.

  As described above, when the PC 12 receives a plurality of service codes from the IC card 11, the PC 12 can more easily provide the service desired by the user by displaying the image representing the service.

  Further, by displaying the image representing the service, the user can confirm the service that can be received from the PC 12 by using the IC card 11. Therefore, when the user has a plurality of IC cards 11, the user can select an appropriate IC card 11 more easily.

  Furthermore, a plurality of services can be provided to the user (IC card 11) by recording a plurality of service codes and application programs for providing the services in advance, and a reader / writer is provided for each service to be provided. 14 need not be installed. As a result, the service desired by the user can be provided more easily, and interference of radio waves radiated from other devices such as the plurality of antennas 15 (reader / writers 14) and the PC 12 can be prevented. .

  Next, a response signal transmission process by the IC card 11 will be described with reference to a flowchart of FIG.

  When the user of the IC card 11 holds the IC card 11 in the vicinity of the antenna 15, the IC card 11 is detected by the detection device 13, and the reader / writer 14 performs polling. When the reader / writer 14 performs polling, a detection signal for the reader / writer 14 to detect the IC card 11 is transmitted from the antenna 15. Therefore, in step S111, the antenna 141 receives and receives the detection signal. The detected signal is supplied to the demodulator 142.

  In step S112, the demodulation unit 142 demodulates the detection signal supplied from the antenna 141 by a demodulation method corresponding to the modulation method of the modulation unit 126 (FIG. 4), and supplies the demodulated detection signal to the SPU 143.

  In step S113, the SPU 143 decodes the detection signal supplied from the demodulation unit 142 by a decoding method corresponding to the encoding method of the SPU 124 (FIG. 4), and supplies the decoded detection signal to the control unit 144.

  Since the detection signal is supplied from the SPU 143, in step S114, the control unit 144 generates a response signal, and supplies the generated response signal to the SPU 143. For example, in step S114, the control unit 144 acquires an identification code for specifying the IC card 11 from the recording unit 145, and generates a response signal including the acquired identification code. Then, the control unit 144 supplies the generated response signal to the SPU 143.

  In step S <b> 115, the SPU 143 encodes the response signal supplied from the control unit 144 by a predetermined encoding method, and supplies the encoded response signal to the modulation unit 148. For example, in step S115, the SPU 143 encodes the response signal supplied from the control unit 144 using the Manchester method, and supplies the encoded response signal to the modulation unit 148.

  In step S116, the modulation unit 148 modulates the response signal supplied from the SPU 143 by a predetermined method, and supplies the modulated response signal to the antenna 141. For example, in step S116, the modulation unit 148 modulates the response signal supplied from the SPU 143 by the ASK method based on the carrier wave generated by the clock signal supplied from the oscillation circuit 147, and the modulated response signal is transmitted to the antenna 141. To supply.

  In step S117, the antenna 141 transmits the modulated response signal supplied from the modulation unit 148 to the antenna 15 by wireless communication, and the response signal transmission processing ends. For example, in step S117, the antenna 141 transmits a response signal by radiating a radio wave that transmits the response signal supplied from the modulation unit 148.

  In this way, the IC card 11 receives the detection signal transmitted from the antenna 15. Further, the IC card 11 generates a response signal and transmits the generated response signal to the antenna 15 by wireless communication.

  The request processing by the IC card 11 will be described with reference to the flowchart of FIG.

  When the antenna 15 receives the response signal transmitted from the IC card 11, the antenna 15 transmits a transmission request signal for requesting transmission of the service code recorded in the IC card 11, so that step S131 is performed. The antenna 141 receives the transmission request signal and supplies the received transmission request signal to the demodulation unit 142.

  In step S132, the demodulation unit 142 demodulates the transmission request signal supplied from the antenna 141 by a demodulation method corresponding to the modulation method of the modulation unit 126 (FIG. 4), and supplies the demodulated transmission request signal to the SPU 143.

  In step S133, the SPU 143 decodes the transmission request signal supplied from the demodulation unit 142 by a decoding method corresponding to the encoding method of the SPU 124 (FIG. 4), and supplies the decoded transmission request signal to the control unit 144.

  Since the transmission request signal is supplied from the SPU 143, in step S134, the control unit 144 acquires a service code from the recording unit 145, and supplies the acquired service code to the SPU 143.

  In step S135, the SPU 143 encodes the service code supplied from the control unit 144 by a predetermined encoding method, and supplies the encoded service code to the modulation unit 148. For example, in step S135, the SPU 143 encodes the service code supplied from the control unit 144 using the Manchester method, and supplies the encoded service code to the modulation unit 148.

  In step S136, the modulation unit 148 modulates the service code supplied from the SPU 143 by a predetermined method, and supplies the modulated service code to the antenna 141. For example, in step S136, the modulation unit 148 modulates the service code supplied from the SPU 143 by the ASK method based on the carrier wave generated by the clock signal supplied from the oscillation circuit 147, and the modulated service code is transmitted to the antenna 141. To supply.

  In step S137, the antenna 141 transmits the modulated service code supplied from the modulation unit 148 to the antenna 15 by wireless communication. For example, in step S137, the antenna 141 transmits a service code by radiating a radio wave that transmits the service code supplied from the modulation unit 148.

  When the antenna 15 receives the service code and the service to be received by the user is specified, the reader / writer 14 executes processing necessary for the user to receive the service. That is, the reader / writer 14 transmits predetermined data or commands as necessary via the antenna 15, and therefore, in step S 138, each unit of the IC card 11 allows the user to receive a service from the PC 12. The processing necessary for the processing is executed, and the processing of the request ends.

  For example, in step S138, when data or a command is transmitted from the antenna 15, the antenna 141 receives the transmitted data or command, and supplies the received data or command to the demodulator 142. The demodulation unit 142 demodulates the data or command supplied from the antenna 141 by a demodulation method corresponding to the modulation method of the modulation unit 126 (FIG. 4), and supplies the demodulated data or command to the SPU 143. Further, the SPU 143 decodes the data or command supplied from the demodulation unit 142 by a decoding method corresponding to the encoding method of the SPU 124 (FIG. 4), and supplies the decoded data or command to the control unit 144.

  And the control part 144 supplies the data supplied from SPU143 to the recording part 145 as needed. The recording unit 145 records the data supplied from the control unit 144. Further, the control unit 144 executes the command supplied from the SPU 143, acquires data recorded in the recording unit 145, for example, and supplies the acquired data to the SPU 143.

  The SPU 143 encodes the data supplied from the control unit 144 by, for example, the Manchester method, and supplies the encoded data to the modulation unit 148. Then, the modulation unit 148 modulates the data supplied from the SPU 143 using, for example, an ASK modulation method, and supplies the modulated data to the antenna 141. The antenna 141 transmits the data supplied from the modulation unit 148 to the antenna 15 by wireless communication.

  In this way, the IC card 11 receives the transmission request signal transmitted from the antenna 15. Further, when receiving the transmission request signal, the IC card 11 transmits the requested service code to the antenna 15 by wireless communication. Then, the IC card 11 executes a predetermined process in order for the user to receive a service from the PC 12.

  Thus, by transmitting the service code to the antenna 15, the IC card 11 can notify the reader / writer 14 of the service that the user (IC card 11) wants to receive. As a result, the user can receive a desired service from the PC 12 more easily.

  As described above, radio waves are radiated after the IC card 11 is detected, and radio waves are not radiated when communication with the IC card 11 is terminated, so that unnecessary radio waves are not radiated. Can be. Furthermore, since a plurality of service codes are recorded in advance and a service code specifying a service is received from the IC card 11, the service desired by the user can be provided more easily.

  According to the present invention, since radio waves are radiated, communication is possible. In addition, according to the present invention, radio waves are radiated after the IC card is detected, and when communication with the IC card is completed, the radio waves are not radiated, so that unnecessary radio waves are not radiated. can do.

  Furthermore, according to the present invention, since a plurality of service codes are recorded in advance and the service code for specifying the service is received from the IC card, the service desired by the user can be provided more easily.

  Although the reader / writer 14 is described as being connected to the PC 12, it may be connected not only to the PC but also to a PDA (Personal Digital Assistants), a mobile phone, or the like. Further, the detection device 13 has been described as being connected to the PC 12, but the detection device 13 may be connected to the reader / writer 14, or the detection device 13 may be incorporated into the reader / writer 14 or the antenna 15. . Further, the detection device 13, the reader / writer 14, and the antenna 15 may be incorporated (built in) the PC 12.

  Further, the IC card 11 is not limited to a non-contact type IC card, and may be a contact type IC card, and the communication method is a microwave method, an optical method, an electromagnetic induction method, an electromagnetic coupling method, or the like. Any communication method may be used.

  Further, after the IC card 11 is detected by the detection device 13, the PC 12 may activate the reader / writer 14 to radiate radio waves, and when communication is completed, the reader / writer 14 may be stopped. . In this case, since the user does not have to hold the IC card 11 after starting the reader / writer 14 each time, the user can receive a desired service more easily.

  Furthermore, it has been described that the detection device 13 starts the program for controlling the reader / writer 14 after the IC card 11 is detected, but the program for controlling the reader / writer 14 is started in advance, Alternatively, the detection device 13 may wait for the IC card 11 to be detected and execute a predetermined process such as an interrupt process.

  Similarly, it has been described that the PC 12 starts the application program after the service code is supplied to the PC 12 from the reader / writer 14. However, the application program is started in advance and waits for the service code from the reader / writer 14. May be supplied to the application program specified by the service code to execute predetermined processing such as interrupt processing.

  Furthermore, a plurality of reader / writers 14 connected to the PC 12 and a plurality of antennas 15 connected to the reader / writer 14 and incorporating the detection device 13 (built-in) may be provided. In this case, since the antenna 15 does not radiate radio waves until the built-in detection device 13 detects the IC card 11, even if a plurality of antennas 15 are provided, the plurality of antennas 15 radiate radio waves simultaneously. There is no interference.

  The series of processes described above can be executed by hardware, but can also be executed by software. When a series of processing is executed by software, a program constituting the software may execute various functions by installing a computer incorporated in dedicated hardware or various programs. For example, it is installed from a recording medium in a general-purpose personal computer or the like.

  As shown in FIG. 2, this recording medium is distributed to provide a program to the user separately from the computer, and includes a magnetic disk 81 (including a flexible disk) on which the program is recorded, an optical disk 82 (CD- ROM (Compact Disc-Read Only Memory), DVD (Digital Versatile Disc) is included), magneto-optical disc 83 (including MD (Mini-Disc) (trademark)), or semiconductor memory 84, etc. In addition, it is configured by a ROM 52 on which a program is recorded and a hard disk included in the recording unit 58, which are provided to the user in a state of being incorporated in advance in the computer.

  The program for executing the series of processes described above is installed in a computer via a wired or wireless communication medium such as a local area network, the Internet, or digital satellite broadcasting via an interface such as a router or a modem as necessary. You may be made to do.

  Further, in the present specification, the step of describing the program stored in the recording medium is not limited to the processing performed in time series according to the described order, but is not necessarily performed in time series. It also includes processes that are executed individually.

  In the present specification, the term “system” represents the entire apparatus constituted by a plurality of apparatuses.

It is a figure explaining the radio | wireless communications system which concerns on this invention. It is a block diagram which shows the example of a structure of PC. It is a block diagram which shows the structure of the function of PC. It is a block diagram which shows the structure of the function of a reader / writer. It is a block diagram which shows the function structure of an IC card. It is a flowchart explaining the process of a response. It is a flowchart explaining the process of a detection. It is a flowchart explaining the reception process of a service code. It is a flowchart explaining the process of service execution. It is a flowchart explaining the process of transmission of a response signal. It is a flowchart explaining the process of a request.

Explanation of symbols

  11 IC card, 12 PC, 13 detecting device, 14 reader / writer, 15 antenna, 31 start switch, 32 display unit, 51 CPU, 52 ROM, 53 RAM, 58 recording unit, 81 magnetic disk, 82 optical disk, 83 magneto-optical disk , 84 Semiconductor memory, 101 control unit, 111 execution control unit, 122 control unit, 124 SPU, 126 modulation unit, 127 demodulation unit, 141 antenna, 142 demodulation unit, 143 SPU, 144 control unit, 145 recording unit, 148 modulation unit

Claims (7)

In an information processing apparatus that wirelessly communicates with a communication apparatus,
Detection means for detecting proximity or contact of the communication device;
A communication means for radiating an electromagnetic wave for communicating with the detected communication device and receiving information for specifying a process to be executed transmitted from the communication device;
Execution control means for causing the application program for executing the process specified by the received information to execute a predetermined process;
When the communication device is detected, in order to start communication with the communication device, the communication means is controlled to radiate electromagnetic waves, and when communication with the communication device is completed, the electromagnetic waves are not radiated. An information processing apparatus comprising: communication control means for controlling the communication means. The communication control means further prevents the electromagnetic wave from being radiated when communication with the communication device cannot be started even after a predetermined period of time has passed since the proximity or contact of the communication device was detected. The information processing apparatus according to claim 1, wherein the information processing apparatus is controlled. In the case where a plurality of pieces of the information are received, the information processing apparatus further includes display means for displaying an image representing each of the processes specified by the received information.
The execution control unit executes a process specified by the received information when one image is selected from the plurality of images displayed on the display unit when a plurality of the information is received. The information processing apparatus according to claim 1, further comprising: an application program for executing a process represented by the selected image among the application programs for executing the predetermined process. When the communication control unit receives a plurality of pieces of information, the communication control unit further controls the communication unit so as not to radiate electromagnetic waves until one image is selected from the plurality of images displayed on the display unit. The information processing apparatus according to claim 3, wherein the information processing apparatus is controlled. In an information processing method for wireless communication with a communication device,
A detection step of detecting proximity or contact of the communication device;
A reception control step for controlling reception by the communication means of information for specifying processing to be executed, transmitted from the communication device;
An execution control step for causing an application program for executing a process specified by the received information to execute a predetermined process;
When the communication device is detected, in order to start communication with the communication device, the communication means is controlled to radiate electromagnetic waves, and when communication with the communication device is completed, the electromagnetic waves are not radiated. And a communication control step of controlling the communication means. An information processing program for wireless communication with a communication device,
A detection step of detecting proximity or contact of the communication device;
A reception control step for controlling reception by the communication means of information for specifying processing to be executed, transmitted from the communication device;
An execution control step for causing an application program for executing a process specified by the received information to execute a predetermined process;
When the communication device is detected, in order to start communication with the communication device, the communication means is controlled to radiate electromagnetic waves, and when communication with the communication device is completed, the electromagnetic waves are not radiated. And a communication control step for controlling the communication means. A recording medium on which a computer-readable program is recorded. In a communication control program for causing a computer to perform information processing for wireless communication with a communication device,
A detection step of detecting proximity or contact of the communication device;
A reception control step for controlling reception by the communication means of information for specifying processing to be executed, transmitted from the communication device;
An execution control step for causing an application program for executing a process specified by the received information to execute a predetermined process;
When the communication device is detected, in order to start communication with the communication device, the communication means is controlled to radiate electromagnetic waves, and when communication with the communication device is completed, the electromagnetic waves are not radiated. And a communication control step for controlling the communication means.

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