JP2008171921A - Outer cover and mobile terminal - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a mobile terminal that will not impair convenience of a user when he use services using a non-contact IC and includes a built-in non-contact IC that can prevent illegal access thereto, and to provide an outer cover to be mounted on the mobile terminal. <P>SOLUTION: The outer cover 2 is mounted on the mobile terminal 1. This cover 2 is provided with a shielding material for shielding electromagnetic waves on a side opposing to the mobile terminal 1 when it is mounted thereon and can be slid to expose a region of the front surface where a loop antenna is formed after the cover is mounted on the mobile terminal 1. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a portable terminal incorporating a non-contact IC, and more particularly to a portable terminal that prevents unauthorized communication with the non-contact IC and an exterior cover attached to the portable terminal.

  In recent years, services have been started in which payment can be made at stores using non-contact ICs or paid through automatic ticket gates for transportation facilities.

  In order to cope with this service, some mobile terminals have built-in non-contact ICs.

  Communication using a non-contact IC can be performed simply by bringing a card or portable terminal with a built-in IC close to a reader or writer. For this reason, although it is convenient for the user, there is a risk that information in the IC may be read or written illegally without the user's knowledge.

  In the case of a non-contact IC card, the card itself is rarely put directly in a pocket of clothes or the like, and is usually carried in a central part of the bag. For this reason, it is difficult to bring the reader or writer close to a distance at which information in the IC can be read or written to the IC without being noticed by the user.

  However, in the case of a portable terminal incorporating a non-contact IC, it is generally carried in a place where it can be easily removed (such as a jacket pocket or an outer pocket of a bag) so that the functions of the portable terminal can be easily used. Is done. Therefore, there is a high possibility that a person who tries to read information illegally can easily bring the reader or writer close to a distance where information can be read and written in the IC without being noticed by the user.

  For this reason, it is necessary to take measures for preventing unauthorized access to a non-contact IC in a portable terminal incorporating the non-contact IC.

Patent Document 1 discloses a case for a mobile phone device in which leakage of electromagnetic waves is prevented by fitting a thin-walled electromagnetic wave shield molded body. Patent Document 2 discloses a technique for shielding and absorbing electromagnetic waves emitted from a mobile phone by mounting a cover provided with a conductive layer on the mobile phone terminal. If such an electromagnetic wave shield molding or cover is attached so as to cover the non-contact IC, unauthorized access to the non-contact IC can be prevented.
JP-A-11-261271 Utility Model Registration No. 3086324

However, if an electromagnetic wave shield molded body as disclosed in Patent Document 1 is attached to the housing, not only illegal read / write but also regular read / write cannot be performed. Also,
Even if an electromagnetic shielding material is provided on the cover as in the invention disclosed in Patent Document 2, the cover must be attached and detached each time a service using a non-contact IC is used, which impairs user convenience. Cause.

  The present invention has been made in view of such problems, and incorporates a non-contact IC that prevents unauthorized access to the non-contact IC without impairing the convenience of the user when using a service using the non-contact IC. An object of the present invention is to provide a portable terminal and an exterior cover attached to the portable terminal.

  In order to achieve the above object, the present invention provides, as a first aspect, an exterior cover attached to a mobile terminal, which shields electromagnetic waves on the side facing the mobile terminal when attached to the mobile terminal. And an exterior cover characterized by being slidable so as to expose a predetermined region on the surface of the portable terminal after being mounted on the portable terminal.

  In the first aspect of the present invention, the shield material is formed by welding or bonding a film-like metal sheet, or the shield material is a metal film formed by vapor deposition or plating. It is preferable.

  In any of the above-described configurations of the first aspect of the present invention, it is preferable that the portable terminal is detachable.

  In order to achieve the above object, as a second aspect, the present invention is a portable terminal incorporating a non-contact IC, and covers a region where a loop antenna connected to the non-contact IC is formed. According to another aspect of the present invention, there is provided a portable terminal to which an exterior cover according to any one of the first aspect of the present invention is attached.

  Moreover, in order to achieve the said objective, this invention is an exterior cover with which a portable terminal is mounted | worn as 3rd aspect, Comprising: The base part which covers the predetermined | prescribed part of the surface of the housing | casing of a portable terminal, and this base A sliding member that is slidable on the portion, and the sliding member provides an exterior cover characterized in that a shield material that blocks electromagnetic waves is disposed on the side facing the base portion. .

  In the third aspect of the present invention, the shield material is formed by welding or bonding a film-like metal sheet, or the shield material is a metal film formed by vapor deposition or plating. It is preferable.

  In any of the above-described configurations of the third aspect of the present invention, it is preferable that the portable terminal is detachable.

  In order to achieve the above object, according to a fourth aspect of the present invention, there is provided a portable terminal incorporating a non-contact IC, wherein a base portion covers an area where a loop antenna connected to the non-contact IC is formed. As described above, the exterior cover according to any one of the configurations of the third aspect of the present invention is mounted, and the loop antenna can be covered by a slide member that can slide so as to be positioned immediately above the loop antenna. The present invention provides a portable terminal characterized by the above.

  According to the present invention, a portable terminal having a built-in non-contact IC that prevents unauthorized access to the non-contact IC without impairing user convenience when using a service using the non-contact IC. Can provide cover.

[First Embodiment]
A first embodiment in which the present invention is suitably implemented will be described.
FIG. 1 shows a configuration of a mobile terminal according to the present embodiment. An exterior cover 2 is attached to the portable terminal 1 incorporating a non-contact IC. The exterior cover 2 can be slid while attached to the portable terminal 1. The structure enabling the exterior cover 2 to slide is not limited to a specific structure, and a known structure such as sliding along a key groove provided in the mobile terminal 1 can be applied. By attaching the exterior cover 2 to the mobile terminal 1, it is possible to prevent the main body of the mobile terminal 1 from being damaged. In addition, by making the exterior cover 2 detachable from the mobile terminal 1, the appearance of the mobile terminal 1 can be changed according to the user's preference. The mobile terminal 1 can be any known terminal such as a mobile phone terminal.

  As shown in FIG. 2, a shield material 3 having electromagnetic shielding properties or magnetic shielding properties is provided on the surface (back surface) of the exterior cover 2 on the portable terminal 1 side. The shield material 3 is obtained by fixing a film-like metal sheet to the exterior cover 2 by welding or adhesion. The shield material 3 may be formed by vapor-depositing or plating a metal on the back surface of the exterior cover 2.

  As shown in FIG. 3A, in a state where the exterior cover 2 is completely covered with the portable terminal 1, the loop antenna 4 connected to the non-contact IC is concealed by the exterior cover 2, and even if the reader is brought close to it. Since the loop antenna 4 does not resonate, power is not supplied to the non-contact IC. Therefore, the data of the non-contact IC cannot be read even if this state reader is brought close.

  As shown in FIG. 3B, the exterior cover 2 is slid to expose the area in which the loop antenna 4 is incorporated, so that when the reader is brought closer, the loop antenna 4 resonates and power is applied to the non-contact IC. Will be supplied. Therefore, in this state, the data of the non-contact IC can be read or the data can be written to the non-contact IC by being brought close to the reader or writer.

The mobile terminal according to the present embodiment uses a service using a non-contact IC by concealing the area in which the loop antenna 4 is built-in by the exterior cover 2 during normal use (when using the telephone / mail function or carrying it). Only when this is done, the exterior cover 2 can be slid to expose the area in which the loop antenna 4 is built.
For this reason, there is no possibility that data in the non-contact IC is illegally read or written when the user does not intend.

[Second Embodiment]
A second embodiment in which the present invention is suitably implemented will be described.
Similar to the first embodiment, the mobile terminal 1 according to the present embodiment incorporates a non-contact IC, and the exterior cover 2 is attached. However, as shown in FIG. 4A, in the present embodiment, the exterior cover 2 has a double structure, and the slide member 2a is slidable with the exterior cover 2a attached. . The structure enabling the slide member 2a to slide is not limited to a specific structure, and a known structure such as sliding along a key groove provided in the exterior cover 2 can be applied. A shield material 3 is provided on the back surface (the surface on the mobile terminal 1 side) of the slide member 2a. Similarly to the first embodiment, the shield material 3 can be installed by welding or bonding a film-like metal sheet, or forming a metal film by vapor deposition or plating.

  As shown in FIG. 4B, when the slide member 2a is moved to the hinge side, the slide member 2a is positioned on the loop antenna 4, and the loop antenna 4 does not resonate even when the reader is brought closer. No power is supplied to the non-contact IC. Therefore, the data of the non-contact IC cannot be read or written even if it is close to the state reader or writer.

  As shown in FIG. 4C, when the slide member 2a is moved away from the hinge, the loop antenna 4 resonates and power is supplied to the non-contact IC when the reader is brought closer. Therefore, in this state, the data of the non-contact IC can be read or the data can be written by approaching the reader or writer.

  The mobile terminal according to the present embodiment uses a service using a non-contact IC by concealing the area in which the loop antenna 4 is built-in by the slide member 2a during normal use (when using the telephone / mail function or carrying it). Only when this is done, the slide member 2a can be slid to expose the area in which the loop antenna 4 is built. For this reason, there is no possibility that the data in the non-contact IC is illegally read or the data is written when the user does not intend. In addition, when using a service using a non-contact IC, it is not necessary to cause the exterior cover 2 to protrude from the mobile terminal 1, so there is no risk of the exterior cover 2 being accidentally damaged or dropped off.

  Each of the above embodiments is an example of a preferred embodiment of the present invention, and the present invention is not limited to this and can be variously modified.

It is a figure which shows the external appearance of the portable terminal concerning 1st Embodiment which implemented this invention suitably. It is a figure which shows the external appearance of the exterior cover with which the portable terminal concerning 1st Embodiment is mounted | worn. It is a figure for demonstrating the usage method of the portable terminal concerning 1st Embodiment. It is a figure for demonstrating the usage method of the portable terminal concerning 2nd Embodiment which implemented this invention suitably.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Portable terminal 2 Exterior cover 2a Slide member 3 Shielding material 4 Loop antenna

Claims (10)

An exterior cover attached to a mobile terminal,
A shield material that shields electromagnetic waves is provided on the side facing the mobile terminal when mounted on the mobile terminal, and is slidable so as to expose a predetermined region on the surface of the mobile terminal after mounting on the mobile terminal. An exterior cover characterized by that.   The exterior cover according to claim 1, wherein the shield material is formed by welding or bonding a film-like metal sheet.   The exterior cover according to claim 1, wherein the shield material is a metal film formed by a vapor deposition method or a plating method.   The exterior cover according to any one of claims 1 to 3, wherein the exterior cover is detachable from the portable terminal. A mobile terminal with a built-in non-contact IC,
The mobile terminal according to claim 1, wherein the exterior cover according to claim 1 is attached so as to cover a region where a loop antenna connected to the non-contact IC is formed. An exterior cover attached to a mobile terminal,
A base portion that covers a predetermined portion of the surface of the casing of the mobile terminal, and a slide member that can slide on the base portion;
The outer cover according to claim 1, wherein the slide member is provided with a shield material for blocking electromagnetic waves on a side facing the base portion.   The exterior cover according to claim 6, wherein the shield material is formed by welding or bonding a film-like metal sheet.   The exterior cover according to claim 6, wherein the shield material is a metal film formed by a vapor deposition method or a plating method.   The exterior cover according to any one of claims 6 to 8, wherein the exterior cover is detachable from the portable terminal. A mobile terminal with a built-in non-contact IC,
The exterior cover according to any one of claims 6 to 9, is attached so that the base portion covers an area where a loop antenna connected to the non-contact IC is formed.
The mobile terminal according to claim 1, wherein the loop antenna can be covered by the slide member that is slidable so as to be positioned immediately above the loop antenna.

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