JP4442328B2 - Mobile device - Google Patents

Description

  The present invention relates to a mobile terminal such as a mobile phone using a non-contact IC card.

  In recent years, in addition to card-sized contact IC cards that are often used in financial services, contactless IC cards that do not have contacts are becoming widespread mainly in transportation services. In addition, IC cards called dual-way I / F (interface) cards, which have both contact and non-contact I / F on a single card, have also appeared.

  In addition, GSM mobile phones that can be used by attaching a SIM-size IC card that stores phone number information have been more prevalent in Europe, but with the globalization of mobile phones, However, mobile phones using IC cards are on the rise. In addition, personal information other than telephone number information and authentication processing programs are built in the IC card, and studies on more sophisticated usage have begun. Mobile phones themselves have advanced functions such as e-mail functions and camera functions as well as basic calling functions. With these advanced functions, data that increases is recorded and moved using an external memory card. Mobile phones equipped with a memory card slot have also appeared. In addition to functions as a simple recording medium, memory cards that have an IC card function and those that can support non-contact communication are beginning to appear.

  An environment where a contactless IC card service can be used by incorporating a contactless IC card communication antenna in a mobile phone and attaching a contactless IC card or memory card to the mobile phone as a further enhancement of the functionality of the mobile phone. Is getting ready.

  Further, although it is not an antenna for non-contact IC card communication, there is a technique in which a plurality of antennas are mounted and the antenna is switched to an optimum antenna as necessary in order to enhance the basic communication function of a mobile phone. 1.

JP 2002-223185 A

  Normally, it is considered that a mobile phone is equipped with one contactless IC card and one contactless IC card communication antenna. However, as non-contact services increase in the future, multiple contactless IC cards and contactless IC cards It is expected that a memory card or the like having an IC card function may be mounted on one mobile phone. However, when the antenna for a non-contact IC card is stored in the size of a cellular phone, it is necessary to take as large a size as possible in order to ensure the performance. difficult. Therefore, in the case of non-contact IC card communication, a situation occurs in which one antenna must be shared by a plurality of IC cards.

  If one antenna is simply connected to multiple IC cards, the RF operating magnetic field supplied from the external device will be insufficient, resulting in problems such as failure to meet the specified performance and communication failure due to collision of communication data. There is sex. Also, if a user has multiple IC cards that can use the same service, and those cards are stored in a mobile phone at the same time, it is more convenient to select which card to use at the user's will. Is good. Even if only one contactless IC card is stored, there may be cases where you do not want to respond unconditionally to the application requirements of external devices, but if you simply connect the contactless IC card and the antenna When the external RF operating magnetic field is received, the non-contact IC card automatically returns a response.

  In the present invention, even when a plurality of IC cards are stored in a portable terminal such as a mobile phone capable of contactless communication with an external device using the mounted antenna and IC card, the IC card that communicates with the external device is selected. It is another object of the present invention to provide a portable terminal such as a cellular phone that can be turned ON / OFF in response to a response request from an external device, an IC card, an IC card, an IC card control method, and a software program used therefor.

  In order to solve the above problems, in the present invention, in a portable terminal having an antenna unit for non-contact communication with an external device, an IC card storage unit, an IC card stored in the IC card storage unit, and an antenna unit A control unit that controls the connection between the IC card and the antenna unit, and a switch control unit that controls the operation of the switch unit. Configured. The control unit includes turning off the connection with the IC card.

  According to the present invention, in a portable terminal having an antenna unit for non-contact communication with an external device, the IC card includes a plurality of IC card storage units and a plurality of IC cards stored in the IC card storage unit. A control unit that controls connection with the antenna unit, and the control unit includes a switch unit that switches connection between the IC card and the antenna unit, and a switch control unit that controls the operation of the switch unit. It is possible to select an IC card that communicates with an external device. The control unit includes turning off the connection with the IC card, and the switch control unit is configured by a hardware switch provided in the mobile terminal or software on the mobile terminal.

  In the present invention, the switch control unit includes an authentication processing unit that performs an authentication process, and is configured to control the switch unit based on an authentication result of the authentication processing unit.

  Further, in the present invention, in a portable terminal having an antenna unit for IC card to perform non-contact communication with an external device, a plurality of IC card storage units and a plurality of different communication methods stored in the IC card storage unit are provided. A switch that switches the connection between the IC card and the antenna, a switch controller that controls the operation of the switch, and a communication that receives the RF operating magnetic field generated by the external device and determines the communication method from the received RF operating magnetic field The switch control unit is configured to control the switch unit to select and connect an IC card having a communication method that matches the communication method determined by the communication method determination unit.

  As described above, according to the present invention, even when a plurality of IC cards are stored in a mobile phone capable of contactless communication with an external device using the mounted antenna and IC card, communication with the external device is selected. Furthermore, it is possible to provide a mobile phone that can be turned on / off in response to a response request from an external device.

  ADVANTAGE OF THE INVENTION According to this invention, the usability of the portable terminal in which the IC card was accommodated can be improved.

  Hereinafter, carrying of the present invention will be described with reference to the drawings.

  FIG. 1 shows a configuration of a mobile phone, a non-contact IC card having a different communication method, and a plurality of external devices having different communication methods for communicating with the non-contact IC card by an RF operating magnetic field according to an embodiment of the present invention. FIG.

  The mobile phone 100 transmits a signal from the contactless IC card communication antenna 101 and a signal from the contactless IC card communication antenna 101 to the communication system A contactless IC card A102 and the communication system B contactless IC card B103. For this purpose, either a storage (or mounting) part A104 or a storage part B105 is provided, or a switch 106 for switching to OFF and a switch control part 107 for controlling the switch 106 are provided. The non-contact IC card A102 and the storage unit A104, and the non-contact IC card B103 and the storage unit B105 are electrically connected by a dedicated antenna terminal, a reserved contact terminal of ISO7816, etc., and a signal is transmitted from the external device through the antenna 101. It can be done.

  The non-contact IC card A102 operates by receiving the RF operating magnetic field of the communication method A that is emitted from the external device A108 through the antenna 109. The non-contact IC card B103 operates by receiving the RF operating magnetic field of the communication method B that is emitted from the external device B110 through the antenna 111.

  Of course, there is a desire to switch and use a plurality of cards of the same service or the same communication method according to the intention of the user, but a plurality of such cards may be mounted.

  Note that the switch switches not only the antenna but also other connections such as a power supply terminal, so that power supply to unnecessary IC cards can be suppressed, and current consumption can be reduced.

  FIG. 2 is a diagram showing an example of an antenna switching hardware switch attached outside the mobile phone.

  A manual antenna connection card switching switch 200 that can be directly operated by the user is attached to the outside of the mobile phone 100, and this switch can control which IC card the antenna is connected to. By setting a switch at the position of the card A or the card B, it is possible to select which of the non-contact IC card A 102 and the non-contact IC card B 103 having a different communication method is to be communicated. Also. By setting it to the OFF position, it can be selected that neither card communicates.

  For example, if a mobile phone is equipped with a card with two different types of communication systems that can receive different services, the user can clearly switch by switching the switch when receiving each service at a store or the like. You will be able to receive services with a willingness. In addition, when a plurality of cards that can receive services such as electronic money are mounted, it is possible to select from which card to pay.

  FIG. 3 is a diagram showing an example of a selection card switching screen when the mobile phone controls the switch by software control.

  When the switch control unit includes a control unit by software, for example, the radio switch for selecting a card to be connected to the antenna is displayed on the mobile screen 300 by software, and the contactless IC card A102 having a different communication method is displayed to the user. The non-contact IC card B103 can be communicated by selecting the radio switch of the card A or the card B. Also. You can also choose not to communicate with either card with the radio button OFF. Based on the selection on this screen, it is possible to select which card is connected to the antenna by transmitting a control signal to the switch by software.

  Furthermore, it is easy for the user to identify which card is connected by indicating the antenna with an icon or the like. 301 and 302 show examples of antenna connection icons. In the icon example 301, the connection line indicates which of the two cards is connected to the antenna. In the example of the icon 302, the card to be selected can be identified by darkening the border of the connected card.

  FIG. 4 is a diagram showing a flow example showing processing when the switch is controlled by software control.

  First, the cellular phone 100 calls step S400 by a button operation or the like for switching the antenna of the user, the process starts, and the process proceeds to step S401. In step S401, an antenna connection card selection screen is displayed using radio buttons or the like, and the process proceeds to step S402. In step S402, an antenna connection card selection key operation by the user is accepted, and the process proceeds to step S403. In step S403, it is determined whether the selected card or connection is OFF, and the process proceeds to step S404. In step S404, in accordance with the connection card determined in step S403 or the connection OFF determination, a control signal is transmitted to the switch 200, and the process proceeds to step S405 to end the process.

  FIG. 5 is a flowchart illustrating an example of processing when the mobile phone performs authentication processing and controls the switch according to the authentication result. There are various types of authentication here, including mutual authentication / one-sided authentication using a connection card and server, mutual authentication / one-sided authentication using a software module and server, and personal authentication using a PIN number between the connection card and the user. There is no need to be particular about the type. In the case of personal authentication, communication other than users can be restricted. In the case of authentication with a card, it can be checked whether the card is authorized to be used. If authentication fails, communication with an external device can be restricted by not using the antenna or causing the IC card to function.

  First, when the mobile phone 100 starts up the mobile phone or uses the antenna, the mobile phone 100 calls step S500, starts the process, and proceeds to step S501. In step S501, the installed authentication process is executed, and the process proceeds to step S502. In step S502, branch processing is performed based on the authentication result, and if successful, the process proceeds to step S503. In step S503, switch control is performed, connection with the card is performed, and the process proceeds to step S504. The card connection here may be set in advance or may be selected by the user at that time. In step S504, a screen indicating that the authentication is successful is displayed, and the process advances to step S506 to end the process. If the authentication result is failure in step S502, the process proceeds to step S506. In step S506, switch control is performed, the connection with the antenna is turned OFF, and the process proceeds to step S507. In step S507, a screen indicating that the authentication has failed is displayed, and the process advances to step S505 to end the process. The authentication may be performed by a basic software program of a mobile phone or a program that can be downloaded onto the mobile phone.

  FIG. 6 is a diagram illustrating an example of a screen displayed when the mobile phone performs authentication processing and the authentication result is unsuccessful.

  If the authentication result fails in step S502, a display like the screen 600 is performed. This screen indicates to the user that authentication has failed and the connection with the card is not performed, so that contactless IC card communication is not possible. Of course, only sounds and icons can be displayed as long as they can be communicated to the user.

  FIG. 7 shows an example of the internal configuration of a mobile phone that has a common RF receiver circuit and a communication method determination unit inside the mobile phone and can be automatically switched to an IC card that matches the communication method with an external device. It is a figure.

  The mobile phone 100 receives the RF operating magnetic field of the communication method generated by either the external device A 108 or the external device B 110 through the non-contact antenna 101 by the common RF receiving unit 700. The communication method determining unit 701 determines which communication method the received communication is. The communication method determination unit 701 sends the determination result to the switch control unit 107, and the switch control unit 107 controls the switch 106 based on the result. With such a configuration, the mobile phone 100 can appropriately switch to an IC card that matches the communication method even when a plurality of cards with different communication methods are mounted. Of course, in this case, it is better to set which communication system card is mounted in which IC card storage unit.

  Further, in a situation where both the external device A and the external device B generate an RF operating magnetic field, there is a case where it is desired to communicate with either the external device A or the external device B. In this case, an IC card of a communication system that is desired to communicate may be set in advance. Normally, the IC card with which communication is established first is selected, but when there are a plurality of communication method IC cards that match the communication method determined by the communication method determination means, one of them can be selected, When there are a plurality of communicable IC cards on the display screen of the mobile terminal, the type of communicable IC card may be displayed on the display screen of the mobile terminal so that one of them can be selected, The IC card may be selected based on the IC card usage history. Further, when refusing communication, the switch may be turned off.

  FIG. 8 shows a configuration capable of performing the same operation as in FIG. 7, in which one IC card A or IC card function unit (IC card chip or LSI chip, etc.) is previously placed in the mobile phone. It is a figure which shows the structure incorporated (or incorporated). In FIG. 8, it goes without saying that the portion in which the IC card A is built in and the IC card storage portion B may each be composed of a plurality of portions in the mobile phone. Further, there may be no IC card storage unit and only a plurality of IC card function units may be used.

  FIG. 9 is a diagram showing an example of the internal configuration of a mobile phone in which the IC card storage unit does not have a contact terminal for antenna connection with the IC card and is provided with a booster coil instead.

  By installing the booster coil 800 in the IC card A102 and mounting the booster coil 801 in the opposing storage portion 104, the signal from the antenna can be transmitted electromagnetically even if there is no contact terminal for the antenna. It is possible.

  FIG. 10 includes a plurality of communication processing units that individually perform processing according to different communication methods, and a common RF processing unit that can be used in common by the plurality of communication processing units, and matches a communication method with an external device. It is the figure which showed the example of the internal structure of the IC card which can be switched to a communication processing part.

  The non-contact IC card 102 receives an RF operating magnetic field of a certain communication method generated by an external device through the antenna terminal unit 900 by the common RF receiving unit 901. The communication method determining unit 902 determines which communication method the received communication is. The communication method determination unit 902 sends the determination result to the switch control unit 903, and the switch control unit controls the switch 904 based on the result. By the switch control, the communication method A processing unit 905 or the communication method B processing unit 906 is connected, and communication can be performed with an appropriate module. By using such a card, it is possible to support non-contact IC card communication of a plurality of communication methods even when only one card can be stored in a mobile phone. Note that by switching not only the antenna but also other connections such as a power line, the switch can suppress power supply to unnecessary communication processing units, and can reduce current consumption.

  FIG. 11 is a diagram showing an example of the internal configuration of a memory card incorporating an IC card chip (functional unit).

  The memory card 1000 includes a contact terminal unit 1001 and a control unit 1002, and distributes commands to the memory unit 1003 and the IC card unit 1005 according to the command type, so that the memory function and the IC card function can be combined into one sheet. This is possible with a card. Furthermore, since the antenna terminal portion 1004 is connected to the IC card, the same function as that of the non-contact IC card is mounted. By storing such a memory card in a mobile phone, even a memory card can realize the same function as a non-contact IC card. An LSI or the like having the same function as a non-contact IC card can realize the same function as long as it has an antenna terminal. Further, even in the case of a non-contact IC card, a memory card, or an LSI having a configuration in which the RF unit is provided outside the module, it is within the scope of the present invention to communicate with an external device through an antenna.

The figure which shows the structure of a mobile telephone, a non-contact IC card, and an external device concerning the Example of this invention. The figure which shows the example of the antenna switching hardware switch attached to the mobile telephone concerning the Example of this invention. The figure which shows the example of the selection card switching screen in case the mobile telephone controls a switch by software control concerning the Example of this invention. The flowchart regarding the process in the case of controlling a switch by software control concerning the Example of this invention. The flowchart regarding the process in case the mobile telephone performs an authentication process and controls a switch according to an authentication result concerning the Example of this invention. The figure which shows the example of the screen which displays the case where a mobile telephone performs an authentication process and the authentication result fails concerning the Example of this invention. The figure which shows the example of the internal structure of the mobile telephone which has a common RF receiving circuit and a communication system judgment part inside the mobile telephone concerning the Example of this invention. The figure which shows the example of an internal structure of the mobile telephone which has a common RF receiving circuit and the communication system judgment part in the inside of a mobile telephone, and built in one IC card concerning the Example of this invention. The figure which shows the example of an internal structure of the mobile telephone with which an IC card storage part is equipped with a booster coil concerning the Example of this invention. The figure which shows the example of the internal structure of the non-contact IC card provided with the some communication processing part, the common RF process part, and the communication system judgment part concerning the Example of this invention. The figure which shows the example of the internal structure of the memory card which incorporated the IC card chip concerning the Example of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 100 ... Mobile phone, 101 ... Antenna for non-contact IC card, 102 ... IC card A, 103 ... IC card B, 104 ... IC card storage part A, 105 ... IC card storage part B, 106 ... Switch, 107 ... Switch control , 108 ... external device A, 109 ... external device A antenna, 110 ... external device B, 111 ... external device A antenna, 200 ... antenna connection card switching switch, 300 ... antenna connection card switching screen, 301 ... antenna connection icon example DESCRIPTION OF SYMBOLS 1,302 ... Antenna connection icon example 2, 600 ... Antenna connection card authentication failure screen, 700 ... Common RF receiving unit, 701 ... Communication method judgment unit, 800 ... Non-contact IC card booster antenna, 801 ... IC card storage unit booster antenna , 900 ... Antenna terminal part, 901 ... Common RF receiving part, 902 ... Communication method determination unit, 903... Switch control unit, 904... Switch, 905 .. communication method A processing unit, 906... Communication method B processing unit, 1000 .. non-contact IC card built-in memory card, 1001. Part, 1003 ... memory part, 1004 ... antenna terminal part, 1005 ... IC card part.

Claims (6)

A portable terminal having rows Ua antenna portion of the IC card is an external device and the non-contact communication,
An IC card storage section;
A control unit for controlling connection between the IC card stored in the IC card storage unit and the antenna unit ;
The control unit is a switch unit that switches connection between the IC card and the antenna unit,
A switch control unit for controlling the operation of the switch unit by a hardware switch element provided in the portable terminal;
Mobile terminal, characterized in that it have a. The control unit includes turning off the connection with the IC card.
The portable terminal described. The portable terminal has display means,
The mobile terminal according to claim 1, wherein a connection state between the IC card and the antenna unit is displayed on the display means . A portable terminal having rows Ua antenna portion of the IC card is an external device and the non-contact communication,
An IC card storage unit;
And a control unit for controlling a connection between the accommodated IC card accommodating unit was the previous SL IC card the antenna unit,
The IC card storage unit has a booster coil,
A portable terminal characterized by being electromagnetically connected to an antenna of a non-contact IC card . The mobile terminal according to claim 4, wherein the control unit includes turning off the connection with the IC card. The portable terminal has display means,
The mobile terminal according to claim 4, wherein a connection state between the IC card and the antenna unit is displayed on the display means .

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