JP2007235567A - Portable information communication terminal, access method of wireless tag, and control program - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a portable information communication terminal, an access method of a wireless tag, and an access control program which can surely access of power feeding, information transmission, etc. even when the portable information communication terminal is communicating or waiting. <P>SOLUTION: The portable information communication terminal 101 is provided with a communication means of a W-CDMA (Wideband-Code Division Multiple Access) system (3G communication system) and a communication means of a GSM (Global System for Mobile Communications) system or a GPRS (General Packet Radio Service) system (2.5G communication system), and a communication control means 108 which performs switching control of respective communication means. It also includes wireless tag power feeding and transmission means 111, 112 which create a signal for power feeding/transmission of a wireless tag 114 in a plurality of respective communication means. The communication control means 108 is provided with a wireless tag power feeding transmission selection means 113 which selects a communication means which is not communicating at present (namely, a communication means which is possible to perform power feeding/transmission to the wireless tag 114), and performs power feeding/transmission to the wireless tag 114 using the wireless tag power feeding and transmission means of the selected communication means. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to an access method and a control program for a portable information communication terminal and a wireless tag, and in particular, supports both W-CDMA (3G communication) and GSM / GPRS (2.5G communication) communication methods. The present invention relates to a portable information communication terminal including the communication means, a method for accessing a wireless tag using the portable information communication terminal, and a control program.

  Mobile information communication terminals typified by mobile telephones are representative of mobile communication means, such as voice calls, videophone calls, mails, and web browsing, and have recently become representative of mobile communication means. A portable information communication terminal having a mobile phone has also appeared and is beginning to be used as a function of a simple wallet or the like. In addition, there is an increasing demand for using wireless tags as authentication means, and the demand for portable information communication terminals equipped with functions for reading and writing wireless tags (so-called reader / writer functions) will increase in the future. It is.

  Here, the wireless tag generally does not have a power source, and power must be supplied using a radio wave (carrier wave) transmitted from the outside (for example, a reader / writer). A structure in which a frequency transmitter is provided has been proposed. Patent Document 1 below also proposes a structure that uses a transmission device of a portable information communication terminal and substitutes for the above-described frequency transmitter for power supply.

Japanese Patent Laid-Open No. 2001-102839 (page 2-3, FIG. 1)

  However, the structure in which the frequency transmitter for power feeding is provided in the portable information communication terminal has a problem that the size of the portable information communication terminal increases because the number of mounted parts increases. Further, in the structure in which the transmission device of the portable information communication terminal is replaced with the frequency transmitter, there is a problem that power cannot be supplied to the wireless tag when the portable information communication terminal is communicating or in standby.

  The present invention has been made in view of the above problems, and its main purpose is to reliably supply power to the wireless tag and transmit information even when the portable information communication terminal is communicating or in standby. An object of the present invention is to provide a portable information communication terminal capable of performing access, a method for accessing a wireless tag, and a control program.

  In order to achieve the above object, the present invention provides a mobile information communication terminal comprising at least a plurality of communication means for performing communication using different communication methods and a communication control means for performing switching control of the plurality of communication means. Each of the communication means includes a wireless tag power supply transmission means for generating a signal for power supply to an external wireless tag or information transmission, and the communication control means includes a communication means that is not currently used for communication. Selecting means for selecting, wherein the communication control means uses the signal generated by the wireless tag power supply transmission means of the communication means selected by the selection means to supply power or transmit information to the wireless tag. Is to do.

  Further, the present invention provides a first communication unit that performs communication using the first communication method, a second communication unit that performs communication using the second communication method, the first communication unit, and the second communication. A portable information communication terminal comprising at least a communication control means for performing switching control of the means for supplying power to an external wireless tag or transmitting information to each of the first communication means and the second communication means. A wireless tag power supply transmission means for generating a signal of the communication, and the communication control means further comprises a selection means for selecting a communication means that is not currently used for communication, and the communication control means is selected by the selection means Power is supplied to the RFID tag or information is transmitted using the signal generated by the RFID tag feeding transmission means of the communication means. The first communication scheme is a W-CDMA scheme, the first Communication method 2 is G It may be M mode or GPRS system.

  In the present invention, each of the communication means includes a baseband processing means for generating a baseband signal, an RF means for performing modulation / demodulation processing, and an antenna, and the RFID tag feeding transmission to the baseband processing means Means may be provided, and the signal generated by the RFID tag feeding / transmitting means may be modulated by the RF means to a frequency usable by the RFID tag and output from the antenna.

  In addition, the present invention is configured such that a plurality of communication means that communicate with different communication methods can be switched, and a signal for supplying power to an external wireless tag or transmitting information is created in each of the plurality of communication means. A program that operates on a portable information communication terminal that includes a wireless tag power supply transmission means that selects a communication means that is not currently used for communication by a computer, and the wireless tag power supply transmission of the selected communication means Means is made to function as means for creating the signal.

  Further, the present invention is configured to be switchable between a first communication unit that performs communication using the first communication method and a second communication unit that performs communication using the second communication method. And a program that operates in a portable information communication terminal provided with a wireless tag power supply transmission means for generating a signal for power supply to an external wireless tag or transmission of information in each of the second communication means, The means for selecting a communication means that is not currently used for communication and the means for causing the RFID tag power transmission means of the selected communication means to create the signal function.

  In addition, the present invention is provided in each of a plurality of communication units that perform communication using different communication methods, a communication control unit that performs switching control of the plurality of communication units, and an external wireless tag. A method for accessing a wireless tag in a portable information communication terminal comprising at least a wireless tag power supply transmitting means for generating a signal for power supply or information transmission, and selecting a communication means that is not currently used for communication And at least a step of creating the signal using the RFID tag power transmission means of the selected communication means, and a step of outputting the created signal using the selected communication means It is.

  Further, the present invention provides a first communication unit that performs communication using the first communication method, a second communication unit that performs communication using the second communication method, the first communication unit, and the second communication. A wireless tag that is provided in each of the communication control means that performs switching control of the means and the first communication means and the second communication means, and that generates a signal for supplying power to an external wireless tag or transmitting information; A method for accessing a wireless tag in a portable information communication terminal comprising at least a power supply transmission unit, the step of selecting a communication unit that is not currently used for communication, and the wireless tag power supply transmission unit of the selected communication unit At least a step of creating the signal, and a step of outputting the created signal using the selected communication means.

  In the present invention, when there is a handover request, the wireless tag power supply transmission means of the communication means used for power supply or information transmission to the wireless tag is stopped, and then the handover is executed. can do.

  Thus, each of the plurality of communication means is provided with a wireless tag power supply transmission means for generating a signal for power supply to the wireless tag or transmission of information, and a communication control means for performing switching control of the plurality of communication means. Mobile information communication by providing a selection means for selecting a communication means that is not performing communication, and supplying power to the wireless tag or transmitting information using the wireless tag power supply transmission means of the communication means selected by the selection means Even when the terminal is communicating or in standby, the wireless tag can be reliably accessed.

  According to the portable information communication terminal and the method for accessing the wireless tag and the control program of the present invention, the wireless tag can be reliably accessed even when the portable information communication terminal is communicating or in standby.

  The reason for this is that it has a plurality of communication means such as a W-CDMA (3G communication) communication means and a GSM / GPRS (2.5G communication) communication means, and performs switching control of each communication means. In a portable information communication terminal provided with a communication control means, each of the plurality of communication means is provided with a wireless tag power supply transmission means for generating a signal for power supply to the wireless tag or transmission of information, and the communication control means Provided with a wireless tag power supply transmission selection means for selecting a communication means that is not performing communication (that is, a communication means capable of supplying power to the wireless tag or transmitting information), the wireless tag power supply is performed when accessing the wireless tag. By using the RFID tag power transmission means of the communication means selected by the transmission selection means, the competition between communication and access to the RFID tag is avoided by supplying power to the RFID tag or transmitting information. This is because it is Rukoto.

  As shown in the prior art, when a portable information communication terminal is made to function as a reader / writer for a wireless tag, if the portable information communication terminal is provided with a power transmission frequency transmitter, the number of mounted parts increases and the terminal becomes larger. Thus, when the transmitting device of the portable information communication terminal is replaced with a frequency transmitter, there is a problem that access to the wireless tag becomes impossible during communication or standby.

  On the other hand, recent portable information communication terminals are also provided with a plurality of communication means corresponding to a plurality of communication systems such as W-CDMA system (3G communication system) and GSM / GPRS system (2.5G communication system). Has been.

  Therefore, the present invention has a plurality of communication means such as a communication means of the W-CDMA system (3G communication system) and a communication means of the GSM / GPRS system (2.5G communication system), and is controlled by switching control of the communication control unit. In a portable information communication terminal in which each communication means can be handed over exclusively or mutually, power is supplied to a wireless tag to a digital baseband processing means for creating a baseband signal for performing communication in each communication method. And a wireless tag power supply transmission means for creating a signal for communication, and a communication control means for controlling the switching of the communication means to a communication means not used for communication (that is, power supply to the wireless tag or transmission of information) RFID tag power transmission / transmission selection means is provided for selecting the communication means that can be used for the 3G communication method, and 2.5G communication is available when the 3G communication system is on standby or communicating. The RFID tag power supply transmission means in the digital baseband processing means of the system is used to supply power to the RFID tag or transmit information, and when waiting in 2.5G communication system or in communication, 3G communication The wireless tag power supply transmission means in the digital baseband processing means of the system is used to supply power to the wireless tag or transmit information. As a result, the wireless tag can be reliably accessed without impairing the communication function of the portable information communication terminal.

  In order to describe the above-described embodiment of the present invention in more detail, a portable information communication terminal, a method for accessing a wireless tag, and a control program according to an embodiment of the present invention will be described with reference to FIGS. To do. FIG. 1 is a block diagram schematically showing the configuration of the portable information communication apparatus of this embodiment. FIG. 2 is a flowchart showing a procedure for supplying power to the wireless tag using the portable information communication terminal of this embodiment, and FIG. 3 is a flowchart showing a procedure for stopping the supply of power to the wireless tag. FIG. 4 is a flowchart showing a procedure at the time of handover of the communication method.

  As shown in FIG. 1, a portable information communication terminal 101 according to the present embodiment includes a 3G antenna 102 for performing communication using a W-CDMA (Wideband-Code Division Multiple Access) method (hereinafter referred to as a 3G communication method). 3GRF 103 and 3G digital baseband processing means 104 (collectively referred to as 3G communication means), GSM (Global System for Mobile Communications) system or GPRS (General Packet Radio Service) system (hereinafter referred to as 2.5G communication system) 2.5G antenna 105, 2.5GRF 106, and 2.5G digital baseband processing means 107 (collectively referred to as 2.5G communication means) for communicating with each other, and each communication means Communication control means 108 that performs switching control so that handover can be performed exclusively or mutually, and application software CPU 109 for executing the air, wireless tag receiving means 110 for receiving radio waves from the external wireless tag 114, 3G digital baseband processing means 104 and 2.5G digital baseband processing means 107, which are used by application software. Wireless tag power supply transmission means 111 and 112 for generating a signal for supplying power to the wireless tag 114 or transmitting information, and communication means provided in the communication control means 108 and not currently used for communication In other words, it includes a wireless tag power supply transmission selection means 113 for selecting (that is, a communication means that can be used for power supply to the wireless tag 114 or transmission of information).

  When radio waves are transmitted using each communication means, the 3G digital baseband processing means 104 (or 2.5G digital baseband processing means 107) performs base based on a signal input from a microphone or an operation unit (not shown). A band signal is created, a baseband signal is modulated by 3GRF 103 (or 2.5 GRF 106), and output as a radio wave from 3G antenna 102 (or 2.5G antenna 105). When receiving a radio wave, the 3G antenna 102 (or 2.5G antenna 105) receives the radio wave, the 3GRF 103 (or 2.5GRF 106) demodulates the radio wave signal, and the 3G digital baseband processing means 104 (or 2.5G). A baseband signal is created by the digital baseband processing means 107) and output from a speaker or a display unit (not shown).

  In addition, the wireless tag power supply transmission unit 111 (or the wireless tag power supply transmission unit 112) creates a signal (baseband signal) for supplying power to the wireless tag 114 or transmitting information, and using 3GRF 103 (or 2.5 GRF). This signal is modulated to a frequency that can be used by the wireless tag 114 and output from the 3G antenna 102 (or 2.5G antenna 106). The frequency used by the wireless tag 114 is not particularly limited. For example, 2 GHz, 1.9 GHz, 1.7 GHz, 900 MHz, 850 MHz, 800 MHz, or the like can be used. In addition, here, a configuration is used in which a signal for power feeding of the wireless tag 114 or information transmission is output from the 3G antenna 102 (or 2.5G antenna 106). And a signal for supplying power to the wireless tag 114 or transmitting information may be directly output from the antenna.

  The above means may be configured as hardware in the portable information communication terminal 101. For example, a computer is used for communication means that is not used for communication (that is, power supply to the wireless tag 114 or transmission of information). A control program that functions as a means for selecting a communication means), a means for causing the wireless tag power supply transmission means 111 or 112 of the selected communication means to generate a signal for power supply of the wireless tag 114 or transmission of information, The control program may be configured to operate on the portable information communication terminal 101.

  In FIG. 1, for ease of explanation, the RFID tag power transmission / transmission selection unit 113 is described as an independent unit. However, the communication control unit 108 has a function of selecting a communication unit used for communication. Therefore, the communication control unit 108 may be provided with a function of selecting a communication unit to be used for supplying power to the wireless tag 114 or transmitting information. Further, the configuration of the wireless tag 114 and the wireless tag receiving unit 110 is not particularly limited, and the radio wave modulation / demodulation method in the wireless tag 114 and the wireless tag receiving unit 110, the content of information received by the wireless tag receiving unit 110, and the like. Is optional.

  Next, with reference to the flowchart of FIG. 2, processing when power is supplied to the wireless tag 14 or predetermined information is transmitted using the portable information communication terminal 101 having the above-described configuration will be described.

  First, when a communication command with the wireless tag 114 is issued from the application software in the portable information communication terminal 101 in step S201, in step S202, the CPU 109 turns on the function of the wireless tag receiving unit 110, and communication control unit. A request for using the RFID tag power transmission function is issued to 108.

  Next, in step S203, the communication control means 108 that has received the request for using the RFID tag power transmission function uses the RFID tag power transmission transmission selection means 113, and currently wireless A communication method that can be used for supplying power to the tag 114 or transmitting information (that is, a communication method that is not currently used for communication) is selected.

  When the 3G communication method is selected as the communication method used for power supply to the wireless tag 114 or transmission of information (3G side in step S204), the communication control means 108 determines that the 3G digital baseband is used in step S205. The wireless tag power supply transmission unit 111 and 3GRF 103 mounted on the processing unit 104 are activated, and in step S206, the wireless tag power supply transmission unit 111 of the 3G communication system is used to start power supply or information transmission to the wireless tag 114. . Specifically, a signal for power supply or a signal for transmitting predetermined information is generated by the wireless tag power supply transmission unit 111, and the generated signal is modulated into a radio signal of a predetermined frequency by the 3GRF 103. Output from.

  On the other hand, when the 2.5G communication method is selected as the communication method used for supplying power to the wireless tag 114 or transmitting information (2.5G side of step S204), the 2.5G digital baseband is selected in step S207. The RFID tag feeding / transmitting means 112 and 2.5 GRF 106 mounted on the processing means 107 are activated, and in step S208, the RFID tag 114 is fed using the RFID tag feeding / transmitting means 112 of the 2.5G communication method or information is transmitted. Start sending. Specifically, a signal for power feeding or a signal for transmitting predetermined information is created by the wireless tag power feeding transmission means 112, and the created signal is modulated into a radio signal of a predetermined frequency by 2.5 GRF 106. Output from the 5G antenna 105.

  Next, in step S209, the communication control unit 108 notifies the CPU 109 of the start of power supply to the wireless tag 114, thereby securing a power supply and transmission / reception route to the wireless tag 114, and reading / writing of the wireless tag 114 is possible. Become. That is, when communication is performed using 3G communication means, power is supplied to the wireless tag 114 or information is transmitted using 2.5G communication means, and communication is performed using 2.5G communication means. If the wireless tag is used, power is supplied to the wireless tag 114 or information is transmitted using the 3G communication means, and in any case, the wireless tag 114 is reliably used without impairing the communication function of the portable information communication terminal 101. Application can be executed.

  Next, processing when power supply to the wireless tag 114 or information transmission is stopped will be described with reference to the flowchart of FIG.

  First, when a notification of completion of communication with the wireless tag 114 is issued in the application software in step S301, in step S302, the CPU 109 turns off the function of the wireless tag receiving unit 110 and also notifies the communication control unit 108. Issue a stop request for the RFID tag power transmission function.

  In step S303, the communication control unit 108 that has received the wireless tag power supply transmission function stop request specifies the communication method used for supplying power to the wireless tag 114 and transmitting information, and converts the 3G communication method to the wireless tag 114. In step S304, the wireless tag power supply transmission unit 111 mounted on the 3GRF 103 and the 3G digital baseband processing unit 104 is stopped.

  On the other hand, if the 2.5G communication method is used for supplying power to the wireless tag 114 and transmitting information in step S303, it is installed in the 2.5GRF 106 and the 2.5G digital baseband processing means 107 in step S305. The wireless tag power supply transmission means 112 is stopped.

  In step S306, the communication control unit 108 stops the wireless tag power feeding transmission function selection unit 113 and notifies the CPU 109 of the suspension of the wireless tag power feeding transmission function.

  Next, an operation when a handover request is generated between the 3G communication system and the 2.5G communication system when the wireless tag is used will be described with reference to the flowchart of FIG.

  In step S401, the communication control unit 108 monitors the handover request, and the communication control unit 108 that has received the handover request specifies the communication method used for supplying power to the wireless tag 114 and transmitting information in step S402. If the 3G communication method is used for power supply to the wireless tag 114 and information transmission, that is, if normal communication is performed using the 2.5G communication method, the 3G digital baseband processing is performed in step S403. The wireless tag power feeding / transmitting means 111 mounted on the means 104 is stopped. Here, the 3GRF 103 does not need to be stopped because communication in the 3G communication scheme is started by the handover operation in the next processing. Next, in step S404, the communication control unit 108 performs handover from the 2.5G communication method to the 3G communication method, as in the normal handover operation. At this time, since the 2.5 GRF 106 is used as a wireless tag power transmission function in the next processing, it does not have to be stopped. Subsequently, in step S405, the communication control unit 108 switches the selected communication method from the 3G communication method to the 2.5G communication method with respect to the RFID tag power transmission / selection unit 113, and the 2.5G digital baseband processing unit 107. The wireless tag power feeding / transmitting means 112 mounted on is activated.

  On the other hand, when the 2.5G communication method is used for supplying power to the wireless tag 114 and transmitting information in step S402, that is, when normal communication is performed using the 3G communication method, in step S406, The wireless tag power supply transmission unit 112 mounted on the 5G digital baseband processing unit 107 is stopped. Here, the 2.5 GRF 106 does not need to be stopped because communication in the 2.5 G communication method is started by the handover operation in the next processing. Next, in step S407, the communication control unit 108 performs a handover from the 3G communication method to the 2.5G communication method, as in the normal handover operation. At this time, since 3GRF 103 is used as a wireless tag power transmission function in the next processing, it is not necessary to stop. Subsequently, in step S408, the communication control unit 108 switches the selected communication method from the 2.5G communication method to the 3G communication method with respect to the wireless tag power supply transmission selection unit 113, and is mounted on the 3G digital baseband processing unit 104. The wireless tag power supply transmission unit 111 is activated.

  In step S409, power supply to the wireless tag 114 or transmission of information is resumed using the wireless tag power supply transmission unit 111 or the wireless tag power supply transmission unit 112, and the wireless tag 114 can be read and written. That is, when a handover from the 2.5G communication method to the 3G communication method is performed, the communication method used for supplying power to the wireless tag 114 or transmitting information is switched from the 3G communication method to the 2.5G communication method. When a handover from the 3G communication method to the 2.5G communication method is performed, the communication method used for power feeding or information transmission to the wireless tag 114 is switched from the 2.5G communication method to the 3G communication method, In any case, the application using the wireless tag 114 can be executed reliably without hindering the handover of the portable information communication terminal 101.

  In the above description, as the operation at the time of the handover, the handover of communication and the switching of the power supply to the wireless tag 114 or the transmission of information are performed individually, but this may be switched at the same time.

  As described above, according to the portable information communication terminal 101 of the present embodiment, the wireless tag power supply transmission selection means 113 is used for power supply to the wireless tag or transmission of information (that is, currently used for communication and standby). Wireless communication) using the 3G communication method and the wireless tag feeding / transmitting means 112, 2.5GRF 106, and 2.5G antenna 105 of the 2.5G communication method. When power is supplied to 114 or information is transmitted and communication is performed using the 2.5G communication method, the wireless tag 114 is transmitted using the 3G communication method wireless tag power transmission unit 111, 3GRF 103, and 3G antenna 102. The wireless tag 114 can be accessed without impairing the communication function of the portable information communication terminal 101 in order to supply power or transmit information. That.

  In the above description, two communication methods, the 3G communication method and the 2.5G communication method, have been described. However, the present invention is not limited to the above-described embodiments, and the PDC (Personal Digital Cellular) communication method, PHS (Personal (Handyphone System) communication method may be adopted, and a communication method such as wireless LAN, Bluetooth, or UWB (Ultra Wide Band) may be used in combination.

  The present invention relates to a mobile information communication terminal device such as a mobile phone, PHS, PDA (Personal Data Assistance, Personal Digital Assistants) having a function of supplying power to a wireless tag, and a W-CDMA system. (3G communication method) and GSM / GPRS method (2.5G communication method) can be applied to all portable information communication terminal devices having a plurality of communication methods.

It is a block diagram which shows typically the structure of the portable information communication terminal which concerns on a present Example. It is a flowchart figure which shows the operation | movement in the case of performing the electric power feeding or transmission of information to a wireless tag using the portable information communication terminal which concerns on a present Example. It is a flowchart figure which shows the operation | movement in the case of stopping the electric power feeding or information transmission to a wireless tag using the portable information communication terminal which concerns on a present Example. It is a flowchart figure which shows operation | movement in the case of switching a communication system using the portable information communication terminal which concerns on a present Example.

Explanation of symbols

101 mobile information communication terminal 102 3G antenna 103 3GRF
104 3G digital baseband processing means 105 2.5G antenna 106 2.5GRF
107 2.5G digital baseband processing means 108 communication control means 109 CPU
110 wireless tag reception means 111 wireless tag power supply transmission means 112 wireless tag power supply transmission means 113 wireless tag power supply transmission selection means 114 wireless tag

Claims (11)

A plurality of communication means for communicating with different communication methods;
In a portable information communication terminal comprising at least communication control means for performing switching control of the plurality of communication means,
Each of the plurality of communication means includes a wireless tag power supply transmission means for creating a signal for power supply to an external wireless tag or transmission of information,
The communication control means includes a selection means for selecting a communication means that is not currently used for communication,
The communication control means performs power supply or information transmission to the wireless tag using the signal generated by the wireless tag power supply transmission means of the communication means selected by the selection means. Mobile information communication terminal. First communication means for performing communication in a first communication method;
A second communication means for performing communication by the second communication method;
In a portable information communication terminal comprising at least communication control means for performing switching control between the first communication means and the second communication means,
Each of the first communication unit and the second communication unit includes a wireless tag power supply transmission unit that creates a signal for supplying power to an external wireless tag or transmitting information,
The communication control means includes a selection means for selecting a communication means that is not currently used for communication,
The communication control means performs power supply or information transmission to the wireless tag using the signal generated by the wireless tag power supply transmission means of the communication means selected by the selection means. Mobile information communication terminal.   3. The portable information communication terminal according to claim 2, wherein the first communication system is a W-CDMA system, and the second communication system is a GSM system or a GPRS system. Each of the communication means includes baseband processing means for creating a baseband signal, RF means for performing modulation / demodulation processing, and an antenna,
The baseband processing means is provided with the wireless tag power supply transmission means,
4. The signal generated by the wireless tag power feeding and transmitting unit is modulated by the RF unit to a frequency that can be used by the wireless tag, and is output from the antenna. The portable information communication terminal described in 1. A plurality of communication means that communicate with different communication methods are configured to be switchable,
Each of the plurality of communication means is a program that operates in a portable information communication terminal including a wireless tag power supply transmission means for creating a signal for power supply to an external wireless tag or transmission of information,
Computer
Means for selecting communication means that are not currently used for communication;
A control program for causing the RFID tag power transmitting / transmitting means of the selected communication means to function as means for creating the signal. The first communication means for performing communication using the first communication method and the second communication means for performing communication using the second communication method are configured to be switchable,
A program that operates in a portable information communication terminal provided with a wireless tag power supply transmission unit that generates a signal for power supply to an external wireless tag or transmission of information in each of the first communication unit and the second communication unit Because
Computer
Means for selecting communication means that are not currently used for communication;
A control program for causing the RFID tag power transmitting / transmitting means of the selected communication means to function as means for creating the signal.   The control program according to claim 6, wherein the first communication method is a W-CDMA method, and the second communication method is a GSM method or a GPRS method. A plurality of communication means for communicating with different communication methods;
Communication control means for performing switching control of the plurality of communication means;
A method of accessing a wireless tag in a portable information communication terminal, comprising at least a wireless tag power supply / transmission means that is provided in each of the plurality of communication means and generates a signal for supplying power to an external wireless tag or transmitting information Because
Selecting a communication means that is not currently used for communication;
Creating the signal using the RFID tag power transmission means of the selected communication means;
A method of accessing the wireless tag, comprising: at least a step of outputting the generated signal using the selected communication means. First communication means for performing communication in a first communication method;
A second communication means for performing communication by the second communication method;
Communication control means for performing switching control between the first communication means and the second communication means;
Portable information communication comprising at least wireless tag power supply transmission means provided in each of the first communication means and the second communication means, for generating a signal for power supply to an external wireless tag or transmission of information. A method of accessing a wireless tag in a terminal,
Selecting a communication means that is not currently used for communication;
Creating the signal using the RFID tag power transmission means of the selected communication means;
And a step of outputting the generated signal using the selected communication means. A method for accessing a wireless tag, comprising:   10. The method for accessing a wireless tag according to claim 9, wherein the first communication method is a W-CDMA method, and the second communication method is a GSM method or a GPRS method. If there is a handover request,
11. The handover is executed after stopping the wireless tag power supply transmission means of the communication means used for power supply or information transmission to the wireless tag. To access your wireless tag.

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