JP2005269116A - A portable terminal equipped with a contactless IC card function - Google Patents

Abstract

A non-contact IC capable of controlling the use of a non-contact IC card function by using an end state of a location registration procedure for registering location information of a terminal performed between a mobile terminal and a network. Provide mobile phone terminals with card functions.
In a portable terminal equipped with a non-contact type IC card function, a storage means for storing a position registration end state obtained by a position registration procedure between a network and a portable terminal, and contactless depending on the position registration end state A portable terminal having control means for controlling use of the IC card function is obtained.
[Selection] Figure 1

Description

  The present invention relates to a mobile terminal, and more particularly to prevention of unauthorized use of an IC card function in the case of loss or theft of a mobile terminal equipped with a non-contact IC card function.

  Mobile terminals such as mobile phones have become smaller and more multifunctional, and have become increasingly portable and convenient, and the number of terminal holders is rapidly increasing. Mobile terminals equipped with an IC card function have also been proposed as multifunctional terminals or expansion of functions. The IC card function eliminates the inconvenience of having to carry the mobile terminal and the card separately, and allows the card information to be viewed using the functions of the mobile terminal. The convenience of use can also be expected.

  On the other hand, with the widespread use of portable terminals, it is considered that the number of missing places due to misplacement of terminals and theft is increased. In a portable terminal equipped with an IC card function, the loss or theft of the terminal means not only the loss of the terminal itself as a portable terminal but also the loss or theft of the IC card itself, and a countermeasure for this is desired.

  As a method of prohibiting unauthorized use of a mobile phone in the event of loss or theft of a mobile phone, the lost mobile phone subscriber is notified to the telecommunications carrier to which the subscriber is subscribed, and the telecommunications carrier subscribes to the subscriber memory of the exchange. There is a method of prohibiting unauthorized use of a mobile phone by registering an outgoing caller or an incoming caller in the subscriber information of the telephone.

  This method can prevent unauthorized use of the mobile phone function, but does not prevent unauthorized use of the card function.

  As a terminal for preventing unauthorized use of an IC card function due to loss or theft of a portable terminal equipped with an IC card function, Japanese Patent Laying-Open No. 2003-16398 (Patent Document 1) is a mobile phone equipped with a non-contact IC card unit. The IC card function of the terminal is normally disabled, and the card function is canceled by canceling the disabled state only when the pre-registered password for the card matches the password entered prior to using the IC card function. We are proposing a portable terminal that can be used.

  However, the portable terminal disclosed in Patent Document 1 changes the IC card function from the normally unusable state to the usable state by inputting a personal identification number, and is independent of the communication function of the mobile phone of the portable terminal. This prevents unauthorized use of the card.

JP 2003-16398 A

  An object of the present invention is to provide a mobile phone terminal equipped with a non-contact IC card function that can control the use of the non-contact IC card function mounted on the mobile terminal by remote information.

The present invention can also control the use of the IC card function using the end state of the procedure in the location registration procedure for registering the location information of the terminal performed between the mobile terminal and the network. It is an object of the present invention to provide a mobile phone terminal equipped with a non-contact IC card function and a method for restricting unauthorized use of the non-contact IC card function of the mobile terminal.

  According to the present invention, in a portable terminal equipped with a non-contact IC card function, the storage means for recording the position registration end state obtained from the position registration procedure between the network and the mobile terminal, and the position registration end state A portable terminal having control means for controlling use of the non-contact IC card function is obtained.

  The storage of the position registration end state is canceled by turning off the power switch.

  The control means enables use of the non-contact IC card means when the position registration end state is normal end.

  The control means rejects the use of the non-contact IC card function when the previous position registration end state is abnormal end.

  The control means refuses to use the non-contact IC card function from the time when the power is turned on until the position registration is completed.

  When the portable terminal is located outside the service area, the control means may make the IC card function usable when the input code number matches a pre-registered code number.

Further, according to the present invention, in a method for restricting unauthorized use of a non-contact IC card function of a portable terminal equipped with a non-contact IC card function, a subscriber memory of a network composed of a base station, a mobile communication switching center, etc. Use of a non-contact IC card function installed in the mobile terminal according to the end state in the location registration procedure performed by the mobile terminal with the network by registering outgoing or incoming call restrictions of the mobile terminal in the subscriber information area It is possible to obtain a method for restricting unauthorized use of a non-contact IC card function, characterized in that

  The present invention relates to an end state in a location registration procedure performed by a mobile terminal with a network composed of a base station, a mobile communication switching center, etc., and enables or disables the IC card function. Therefore, if the mobile terminal is lost or stolen, the card function can be remotely controlled by registering the mobile terminal's outgoing or incoming call restrictions in the subscriber information area of the exchange's subscriber memory. Unauthorized use can be regulated.

According to the present invention, when the portable terminal is lost or stolen, the location registration procedure is normally completed in the subscriber information area of the exchange subscriber memory related to the terminal depending on the registration status of the outgoing or incoming call restriction of the portable terminal. Therefore, not only unauthorized use of the card but also unauthorized use of the telephone function of the portable terminal can be prevented.

  Next, the present invention will be described with reference to the drawings.

  FIG. 1 is a block diagram of a portable terminal 100 equipped with a contactless IC card function according to an embodiment of the present invention. A portable terminal is used as a term meaning a terminal having a communication function including a mobile phone or a portable information terminal. In the same figure, 1 is a radio unit responsible for a transmission function and a reception function, 2 is an audio signal processing unit for performing signal processing such as audio encoding / decoding, 3 is a receiver such as a speaker, 4 is a transmitter such as a microphone, 5 is a display unit such as a liquid crystal display (LCD), 6 is an operation unit for turning on / off a power switch, key input, etc. 7 is a power unit, 8 is a control unit, 9 is a memory unit, and 10 is a mobile phone terminal The non-contact IC card part mounted is shown.

  The memory unit 9 includes an area for holding an end state of a location registration procedure described later.

  The control unit 8 includes a CPU that operates according to a control program, and controls the wireless unit 1, the audio signal processing unit 2, the display unit 5, the operation unit 6, the memory 9, and the like, and the non-contact IC card unit. The non-contact IC card unit is controlled by an IC card interface control unit 81 that is a part of the control unit.

  The non-contact IC card unit 10 has a CPU, a memory such as a ROM, an EEPROM, a RAM, and an IC card function for exchanging information with a service provider's terminal using radio waves. Built-in antenna (coil). The IC card user hangs a portable terminal equipped with an IC card function over the service provider's terminal and communicates with the service provider's reader / writer terminal 20 to receive a predetermined service. Normally, when a non-contact type IC card is brought close to a reader / writer terminal, a current flows through a coil as an antenna, and the IC chip operates using this as a power source. Since a non-contact IC card normally uses radio waves from a reader / writer terminal as an energy source, the non-contact IC card itself can be used when it is brought close to the terminal.

  The non-contact IC card unit stores, for example, commuter pass information in its memory in advance, used as a commuter pass, used as a prepaid card storing data for receiving a predetermined service, or an ID storing identification information. Information corresponding to the service provided such as use as a card is stored, communicates with the reader / writer terminal, reads the card information in response to the reader / writer terminal, writes it as necessary, etc. .

  Next, operations until the location registration end state information used in the embodiment of the present invention is stored in the memory will be described with reference to the memory area diagram of FIG. 2 and the flowchart of FIG. When the power switch is turned on, the controller 8 initializes the hardware part and the memory of the mobile terminal (S21). The location registration end state holding area, which will be described later, is cleared by the initialization process. After the initialization process, it is determined whether a radio wave is received from a base station (not shown) or out of a radio wave not reachable (S22). If it is within the range, a location registration request signal is transmitted to the base station (S23). Thereafter, when an authentication request signal transmitted from the base station is received (S24), an authentication response signal is transmitted to the base station (S25). A location registration response signal is received from the base station (S26). The location registration response signal is a normal end signal indicating that location registration has been accepted in a normal case. The location registration response signal is sent according to the subscriber information of the mobile terminal stored in the subscriber memory of the network side exchange. When transmission stop or incoming call stop information is stored in the subscriber information, a location registration rejection signal is sent without performing location registration. Therefore, when the mobile terminal is lost or stolen, the mobile terminal subscriber requests the telecommunications carrier to take a call suspension measure for the subscriber information of the mobile terminal, and the measure is taken. As a result of turning on the power to use the portable terminal and performing the location registration procedure, the terminal receives a location registration rejection signal.

  The control unit 8 stores the end state of the location registration procedure in the location registration end state holding area 91 of the memory 5 (FIG. 2). When the position registration acceptance signal is received, the procedure is normally completed, and normal termination (“1”) is stored in the memory. When the state is not normal termination, abnormal termination (“0”) is stored. As will be described later, the IC card interface control unit 81 reads the end state stored in this manner and controls whether or not the non-contact IC card unit 10 can be used.

  In order to be able to use a contactless IC card when the mobile terminal 100 is out of the service area, if it is out of service area, use a contactless IC card even in a place where radio waves do not reach by entering a personal identification number into the mobile terminal. You may forgive. In this case, the personal identification number is input, and the confirmation state is stored in the personal identification number confirmation state holding area 92 of the memory depending on whether the personal identification number matches the personal identification number registered in advance.

  Referring to FIG. 4 showing the confirmation process of the personal identification number, when the personal identification number is input to the portable terminal (S31), the identification with the personal identification number registered in advance is confirmed (S32). “1” is stored as a match in the security code confirmation state holding area 92 of the memory unit (S33), and “0” is stored if they do not match (S35). The IC card interface control unit 81 can control whether or not the contactless IC card unit 10 can be used based on the data in the security code confirmation state holding area even when the mobile terminal is out of service area and the location registration is not normally completed.

  Referring to FIG. 5, the contents of the state holding area are cleared when the power switch of the portable terminal is turned off, that is, the information of the state holding area, that is, the location registration end state holding area and the password confirmation state holding area of the memory unit is cleared. (S41, S42).

  Referring to FIG. 6, even when the power switch is not turned off, the information in the security code confirmation state holding area is cleared when the security code confirmation status is maintained and a predetermined time has elapsed. The predetermined time may be set in advance by the user. Clearing at a predetermined time should be as short as possible in order to prevent unauthorized use in the event of loss or theft while maintaining the PIN confirmation state, but it is determined in relation to the timing of use of the contactless IC card function. It is good. The above-mentioned personal identification number is not for authentication when the non-contact IC card unit communicates with the reader / writer terminal, but is arbitrarily determined by the portable terminal.

  Next, usage scenes of the IC card unit will be described. The contactless IC card unit usually enters a transaction after wirelessly authenticating the IC card and the reader / writer of the terminal by bringing the contactless IC card close to the external reader / writer terminal. Therefore, in the control procedure between the IC card unit and the reader / writer, before the IC card unit returns a response to the reader / writer, the IC card interface control unit of the portable terminal is inquired about whether or not the IC card can be used. The card interface controller accesses the location registration end state holding area or the security code confirmation state holding area of the memory 5 to check the holding state, sends the result to the non-contact IC card, and sends an authentication request response to the reader / writer terminal. To return.

  With reference to the sequence chart of FIG. 7, the operation in the usage scene of the non-contact IC card will be described.

  When the non-contact IC card unit 10 is brought close to the reader / writer terminal 20, the reader / writer terminal detects the presence of the card (S71) and issues an authentication request (S72). The non-contact IC card unit receives this authentication request signal, and inquires of the IC card interface control unit 81 whether or not the authentication procedure can be started according to a predetermined control procedure between the non-contact IC card unit and the reader / writer terminal 20. Send (S61). The IC card interface control unit accesses the state holding area of the memory to acquire data, determines whether or not the authentication procedure can be started, and informs the contactless IC card unit of the authentication procedure start / stop response (S80). The non-contact IC card unit transmits to the reader / writer terminal 20 an authentication request response including information related to authentication predetermined by the non-contact IC card unit and the reader / writer terminal in accordance with the authentication procedure start availability response (S62). ). If the IC card interface control unit allows the authentication procedure to be started, the authentication request response usually returns data related to authentication negotiated between the non-contact IC card and the reader / writer terminal. If the authentication procedure start is rejected, data different from the authentication data is sent. When the authentication response is authentication data (S73), the reader / writer terminal that has received the authentication response enters a transaction with the non-contact IC card (S74).

  With reference to FIG. 8, the contents of step 80 in FIG. 7, that is, the operation when the IC card interface control unit 81 receives an inquiry as to whether authentication is possible will be described in a little more detail. The IC card interface control unit accesses the state holding area of the memory (S81). First, the location registration end state holding area is accessed to determine whether or not the holding area is in a normal end (“1”) state (S82). If the process ends normally, a response to permit authentication procedure start is returned. If the holding area does not end normally (“0”), the contents of the PIN confirmation state holding area are examined, and whether the data in the PIN number checking state holding area indicates that the ID matches (“1”). Is determined (S84). If it indicates a match, an authentication procedure start permission is sent to the non-contact IC card unit.

  Therefore, the IC card can be used if the location registration procedure performed between the network and the mobile terminal is normally completed, and the non-contact IC card can be used. If the mobile terminal is stolen or lost, if the mobile terminal is stolen or lost, it is necessary to register restrictions such as call suspension in the subscriber information of the mobile terminal in the subscriber memory of the exchange. If the mobile terminal or the IC card is used, the power switch of the mobile terminal is turned on and the location registration procedure is started with the network. Unauthorized use of cards is restricted.

  In the above embodiment, in the situation where a non-contact IC card is used, the non-contact IC card interface control unit is inquired when an authentication request is issued from the reader / writer. Since the radio wave from the writer terminal is used as an energy source, the contactless IC card itself is normally usable when it is brought close to the terminal. The IC card may be placed in a disabling and enabling state upon termination and abnormal termination, respectively. In this case, even when the IC card unit receives an authentication request from the reader / writer terminal, it can be operated in the same manner as a normal non-contact IC card without inquiring of the IC card interface control unit.

  In the above embodiment, a case has been described where the use of a non-contact IC card is permitted even when the position registration end state is not normal end, but the non-contact IC card is allowed to be used unless the position registration end state is normal end. The use of an IC card may not be allowed. In this case, in FIG. 8, instead of step S84, if the result of step S82 is NO, the process proceeds to step S85.

As described above, in the present invention, the use of the non-contact IC card is permitted when the position registration end state is normal end, except for the case where the use of the non-contact IC card is permitted by the personal identification number. From the time when the machine is turned on until the end of position registration, the non-contact IC card function cannot be used.

It is a block diagram which shows embodiment of this invention. It is a figure which shows the state of the memory in embodiment of this invention. It is a flowchart which shows the storage to the holding | maintenance area of the position registration procedure which is one of the operation | movement of the control part in embodiment of this invention, and the completion | finish state of memory. It is a flowchart which shows the control for storing the PIN code confirmation state in embodiment of this invention. It is a flowchart which shows operation | movement of the clear process of a state holding area in the case of a power supply OFF. It is a flowchart which shows one of the clear processing operation | movement of a PIN code confirmation state holding area. It is a sequence chart which shows mutual exchange with the IC card interface control part in the Example of this invention, an IC card part, and a reader / writer terminal. It is a flowchart explaining operation | movement of the IC card interface control part in FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Radio | wireless part 2 Audio | voice signal processing part 5 Display part 6 Operation part 8 Control part 9 Memory part 10 Non-contact IC card part 20 Reader / writer terminal 81 IC card interface control part 90 State holding area 91 Position registration completion state holding area 92 Security code confirmation status holding area

Claims (8)

  In a portable terminal equipped with non-contact type IC card means, storage means for storing a location registration end state obtained from a location registration procedure between the network and the mobile terminal, and the non-contact IC card depending on the location registration end state And a control means for controlling use of the means.   2. The portable terminal according to claim 1, wherein the storage of the location registration end state is released by turning off the power.   3. The portable terminal according to claim 1, wherein the control means enables the non-contact IC card means to be used when the previous position registration end state is normal end.   4. The portable terminal according to claim 1, wherein said control means rejects the use of said non-contact IC card means when the previous position registration end state is abnormal end.   The portable terminal according to claim 1, 2, 3, or 4, wherein the control means refuses to use the non-contact IC card means from power-on to the end of location registration.   3. The non-contact IC card unit according to claim 1, wherein when the portable terminal is located outside the service area, the control unit makes the non-contact IC card unit usable when the input code number matches a pre-registered code number. 3. The mobile terminal according to 3 or 4.   A portable terminal equipped with a non-contact IC card function, wherein use of the function of the non-contact IC card is restricted by information from a network. In a method for restricting unauthorized use of a non-contact IC card function of a mobile terminal equipped with a non-contact IC card function, the mobile terminal is placed in a subscriber information area of a subscriber memory of a network composed of a base station, a mobile communication switching center, etc. Registration of outgoing or incoming call restrictions of a mobile device, and control of the use of a non-contact IC card function mounted on the mobile terminal according to the end state in a location registration procedure performed by the mobile terminal with the network A method of restricting unauthorized use of contactless IC card functions.

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