JP2007304800A - Portable electronic equipment, key sheet, setting change method, and setting change program - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a portable electronic equipment of which the design and functions of key parts can be changed. <P>SOLUTION: When a key sheet 114 with an RFID chip 100 mounted thereon is mounted on a portable telephone set 200, a detection part 109 reads information stored in the RFID chip 100 installed on the key sheet 114 according to the selection of a user. A control IC 111 operates based on information read by the detection part 109. When the key sheet 114 is removed, the control IC 111 resets setting. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a portable electronic device, a key sheet, a setting change method, and a setting change program that can change the design and function of the portable electronic device.

  A user who wants personality in the design of a mobile phone wears a cover with a unique design on the exterior of the mobile phone. However, it has been impossible to attach a cover to a key portion of a conventional mobile phone.

  Therefore, a communication terminal capable of attaching a key sheet that covers the key portion has been proposed (see, for example, Patent Document 1).

  Patent Document 2 describes a device that performs an operation based on information stored in a data carrier mounted on a carrier or pouch of the device.

JP 2004-336582 A (paragraphs 0010 to 0040, FIG. 1) JP-T-2004-506357 (paragraphs 0026 to 0048, page 1)

  When the key sheet is attached to the mobile phone, it is preferable that the function of the mobile phone changes. For example, when a plurality of people share one mobile phone, it is preferable that the function changes according to the user to use. Moreover, it is preferable that the character of a key part is changed with a key sheet for every country of the shipping destination of a mobile telephone.

  The device described in Patent Document 2 changes its operation based on information stored in the data carrier mounted on the carrier or pouch of the device, but it is preferable that the design can also be changed.

  Accordingly, an object of the present invention is to provide a portable electronic device, a key sheet, a setting change method, and a setting change program that can change the design and function of the portable electronic device.

  A portable electronic device according to the present invention is a portable electronic device in which a detachable key sheet that covers an operation unit is attached to an operation unit through which a user inputs an instruction, and a storage element installed in the key sheet stores the memory. An information communication unit that reads information and a control unit that operates based on the information read by the information communication unit are provided.

  The information communication means may store information in the storage element. The key sheet may include light emitting means that emits light according to control of the control means, and the key sheet may allow light emitted from the light emitting means to pass therethrough.

  Including a display means for displaying information, the storage element stores language information indicating a language of information to be displayed on the display means, the information communication means reads the language information stored in the storage element, and the control means includes: Information may be displayed on the display means in the language indicated by the language information read by the information communication means.

  The information communication means detects whether or not a storage element is installed in the vicinity, and the control means detects a storage element in the vicinity when the information communication means does not detect that the storage element is installed in the vicinity. It may operate by changing to a state before being installed.

  You may provide the communication means which transmits / receives information with another computer via a communication network. The storage element stores money amount information indicating a usable amount of money and address information indicating an address of a computer connected via a communication network, and the communication means reads an address read from the storage element by the information communication means. Based on the information, information is transmitted to and received from the computer, the control means calculates a usable amount according to the information transmitted and received by the communication means, and the information communication means stores the amount information indicating the calculated amount in the storage element. It may be memorized.

  The key sheet according to the present invention is a key sheet that covers the operation unit of the portable electronic device and is detachably mounted, stores information, and transmits the stored information in response to the request of the portable electronic device. And a resin portion having a convex portion at each position corresponding to a plurality of buttons provided on the operation portion of the portable electronic device on the surface facing the portable electronic device. The convex portion presses the button when a position corresponding to the provided button is pressed.

  The resin portion may include a rubber sheet having a convex portion and a plastic plate on which information indicating buttons provided on the operation portion is displayed.

  The setting changing method according to the present invention is a setting changing method for changing the setting of a portable electronic device, wherein the information communication means is installed on a key sheet that is mounted so as to cover the operation unit of the portable electronic device. The information communication step for reading the information stored in the information communication means, and the control means comprises a control step for operating based on the information read by the information communication means in the information communication step.

  A setting change program according to the present invention is a setting change program installed in a portable electronic device in which a detachable key sheet that covers an operation unit is mounted on an operation unit for a user to input an instruction. An information communication process for reading information stored in the installed storage element and a control process that operates based on the information read in the information communication process are executed.

  According to the present invention, it is possible to change the design and function (operation) of a portable electronic device by attaching a key sheet.

  When the information communication means is configured to store the information in the storage element, the key sheet on which the storage element storing the information is attached to another portable electronic device, The stored information can be used in the portable electronic device.

  When the control means is configured to display information on the display means in the language indicated by the language information read from the storage element by the information communication means, the language of the information displayed by the display means is determined according to the language information. Can be changed. Accordingly, since different key sheets can be attached to a common portable electronic device and shipped to different countries, the productivity of the portable electronic device can be improved.

  If the information communication means is configured to operate by shifting to a predetermined initial state when the information communication means does not detect that a storage element is installed in the vicinity, the control means is shared by the portable electronic device. In this case, the information stored in the storage element can be prevented from being viewed by other sharers.

  In the case where the communication means is provided and the storage element stores the amount information and the address information, it is possible to purchase a product or the like via the communication network within the amount range indicated by the amount information.

Embodiment 1 FIG.
A first embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a sectional view showing a configuration of a first embodiment of a mobile phone (mobile electronic device) 200 to which a key sheet 114 according to the present invention is attached (mounted). FIG. 2 is a front transparent view of the mobile phone 200 to which the key sheet 114 according to the present invention is attached.

  A key sheet 114 shown in FIGS. 1 and 2 includes a plastic plate 101, a rubber sheet 103, and an RFID (Radio Frequency IDentification) chip (memory element) 100, and is fixed to the mobile phone 200 with a double-sided tape or the like. The resin portion is realized by the plastic plate 101 and the rubber sheet 103.

  1 and 2 includes a printed circuit board 113, an EL (Electroluminescence) sheet (light emitting means) 108, a key FPC (Flexible Printed Circuit) 112, a keypad 105, a metal dome 107, a detection unit (information communication means). ) 109, a control IC (Integrated Circuit) 111, a connector 106, a connector 110, and a housing 115.

  The casing 115 of the mobile phone 200 is provided with a concave portion on one surface of a rectangular parallelepiped, and the printed circuit board 113 and the key FPC 112 are installed in the concave portion. On the surface of the printed circuit board 113 facing the key FPC 112, a control IC 111 that controls each unit of the mobile phone 200, a detection unit 109 that transmits / receives information to / from the RFID chip 100, and a connector 106 that connects the EL sheet 108 and the printed circuit board 113. And a connector 110 for connecting the key FPC 112 and the printed circuit board 113 are provided.

  On the outer surface of the key FPC 112 with respect to the printed circuit board 113, a metal dome 107 that deforms when pressed, and a keypad 105 that detects the deformation of the metal dome 107 are installed. When the keypad 105 detects the deformation of the metal dome 107, the key FPC 112 sends a signal indicating that the metal dome 107 is deformed to the control IC (control means) 111 via the connector 110 and the printed circuit board 113. Output. In addition, an EL sheet 108 is installed in contact with the metal dome 107. In addition, a support body 117 that supports the key FPC 112 is installed on a surface of the key FPC 112 facing the printed circuit board 113.

  Note that the user inputs an instruction to the cellular phone 200 by pressing the metal dome 107 installed on the key FPC 112 via the plastic plate 101 or the like. Therefore, an area where the metal dome 107 is installed is called an operation unit. The key sheet 114 is attached so as to cover the operation unit.

  The key sheet 114 is installed so that a convex portion (also referred to as a pusher) 104 provided on the rubber sheet 103 is in contact with the EL sheet 108 at a position corresponding to (facing) the metal dome 107 of the mobile phone 200. The plastic plate 101 is placed in contact with the surface opposite to the surface on which the convex portion 104 of the rubber sheet 103 is provided. On the surface of the plastic plate 101 that is in contact with the rubber sheet 103, characters indicating each key (button) are printed. In the example shown in FIG. 1, the printed portion 116 of the plastic plate 101 is indicated by hatching.

  The entire surface of the EL sheet 108 on the convex sheet 104 side of the rubber sheet 103 emits light according to the control of the control IC 111 via the connector 106. The plastic plate 101 and the rubber sheet 103 transmit light emitted from the EL sheet 108. The portion 116 printed on the plastic plate 101 does not transmit the light emitted from the EL sheet 108, and the portion not printed on the plastic plate 101 transmits all the light emitted from the EL sheet 108. In the example shown in FIG. 2, portions that are not printed (portions such as numeric keys and arrow keys) are shown in white. Note that the light transmittance of the portion 116 printed on the plastic plate 101 may be changed to transmit part of the light emitted from the EL sheet 108 to express the light density.

  The RFID chip 100 is installed on the rubber sheet 103 at a position facing the detection unit 109 of the mobile phone 200. The detection unit 109 detects that the RFID chip 100 is installed in the vicinity. The detection unit 109 transmits and receives information to and from the RFID chip 100 according to the control of the control IC 111.

  The RFID chip 100 is displayed by the manufacturer of the key sheet 114 on, for example, information indicating a ringtone that the mobile phone 200 emits when an incoming call is received, or on display means (not shown) of the mobile phone 200 when receiving an incoming call or waiting for an incoming call. Image data, a game program, an IP address of a computer connected via a communication network, a URL (Uniform Resource Locator), and the like are recorded in advance.

  In the example shown in FIGS. 1 and 2, the key sheet 114 is fixed to the mobile phone 200 using a double-sided tape or the like at a portion in contact with the housing 115.

  Note that the cellular phone 200 executes an information communication process for reading information stored in the RFID chip 100 installed on the key sheet 114 and a control process that operates based on the information read in the information communication process. It is equipped with a setting change program that is characterized by

  Next, the operation of the first exemplary embodiment of the present invention will be described with reference to the drawings. FIG. 3 is a flowchart for explaining the operation of the first embodiment of the present invention.

  The key sheet 114 is sold after information is recorded on the RFID chip 100 by the manufacturer of the key sheet 114.

  When the key sheet 114 is attached to the mobile phone 200 by a user who has purchased the key sheet 114 (step S101) and the mobile phone 200 is turned on (step S102), the detection unit 109 is located near the RFID chip 100. (Step S103).

  When the control IC 111 detects that the RFID chip 100 is installed in the vicinity, the control IC 111 displays a screen for allowing the user to select whether to perform an operation based on information stored in the RFID chip 100 on the display unit. Let

  When the user selects to perform an operation based on the information stored in the RFID chip 100 (Y in step S104), the control IC 111 stores the information stored in the RFID chip 100 in the detection unit 109. Receive (step S105). The control IC 111 executes an operation based on information received from the RFID chip 100 by the detection unit 109 (step S106). For example, the ring tone stored in the RFID chip 100 is set to ring at the time of incoming call, or the image data stored in the RFID chip 100 is set to be displayed on the display means when waiting for an incoming call.

  The detection unit 109 checks whether or not the RFID chip 100 is installed in the vicinity at a predetermined time interval (for example, every few seconds). Note that this confirmation operation performed by the detection unit 109 is preferably performed at predetermined time intervals using a backup battery or the like even when the mobile phone 200 is being charged or in a power-off state.

  When the detection unit 109 confirms that the RFID chip 100 is not installed in the vicinity (N in step S107), the control IC 111 executes the operation in the initial state. That is, the control IC 111 resets the setting when the key sheet 114 is removed and the detection unit 109 does not detect that the RFID chip 100 is installed nearby (step S108), and before the key sheet 114 is attached. The operation (initial operation) is executed. Then, when the key sheet 114 is newly attached, the operations after step S101 described above are performed.

  According to the present embodiment, since the key sheet 114 is configured to be replaceable, the design of the key portion of the mobile phone 200 can be changed. Further, according to the present embodiment, since the RFID chip 100 is installed on the key sheet 114, the mobile phone 200 can be operated based on information stored in the RFID chip 100.

  Therefore, according to the present embodiment, since the key sheet 114 on which the RFID chip 100 is installed can be replaced, the design of the key part of the mobile phone 200 and the operation of the mobile phone 200 are changed. be able to.

  Further, since the characters and the like are printed on the plastic plate 101, the characters and the like can be easily printed as compared with the case of printing on the rubber sheet 103. Further, since printing is performed on the surface of the plastic plate 101 facing the rubber sheet 103, it is possible to prevent the printing (painting) from being peeled off by touching the printed portion 116 by the user.

  In addition, since the EL sheet 108 that emits light from the entire surface is configured to illuminate the operation unit, the width of the design of the key sheet 114 can be increased.

Embodiment 2. FIG.
A second embodiment of the present invention will be described. Since the configuration of the second embodiment of the present invention is the same as the configuration shown in FIGS. 1 and 2, the same reference numerals as those in FIGS.

  In the present embodiment, the RFID chip 100 stores information transmitted by the detection unit 9.

  Next, the operation of the second exemplary embodiment of the present invention will be described with reference to the drawings. FIG. 4 is a flowchart for explaining the operation of the second embodiment of the present invention.

  When the key sheet 114 is attached to the mobile phone 200 by the user who has purchased the key sheet 114 (step S201) and the mobile phone 200 is turned on (step S202), the detection unit 109 has the RFID chip 100 in the vicinity. Is detected (step S203).

  The control IC 111 detects that the RFID chip 100 is installed in the vicinity, and when the metal dome 107 is pressed through the plastic plate 101 and the rubber sheet 103 and information to be stored in the RFID chip 100 is input ( In step S204, the detection unit 109 stores the input information in the RFID chip 100 (step S205). Note that the control IC 111 may cause the RFID chip 100 to store information already stored in the storage unit of the mobile phone 200.

  The information stored in the RFID chip 100 by the detection unit 109 is, for example, information indicating the type of language displayed on the display unit, information such as a telephone directory.

  When the detection unit 109 confirms that the RFID chip 100 is not installed in the vicinity (N in step S206), the control IC 111 executes the operation in the initial state. Therefore, the control IC 111 resets the setting when the key sheet 114 is removed and the detection unit 109 does not detect that the RFID chip 100 is installed nearby (step S207), and before the key sheet 114 is attached. The operation (initial operation) is executed.

  Then, when the key sheet 114 is attached to the mobile phone 200 by the user (step S208) and the mobile phone 200 is turned on (step S209), the detection unit 109 has the RFID chip 100 installed in the vicinity. This is detected (step S210).

  When the control IC 111 detects that the RFID chip 100 is installed in the vicinity, the control IC 111 displays a screen for allowing the user to select whether to perform an operation based on information stored in the RFID chip 100 on the display unit. Let

  When the user selects to perform an operation based on information stored in the RFID chip 100 (Y in step S211), the control IC 111 stores information stored in the RFID chip 100 in the detection unit 109. Receive (step S212). The control IC 111 executes an operation based on the information received from the RFID chip 100 by the detection unit 109 (step S213).

  Specifically, for example, when information indicating the type of language displayed on the display unit by the RFID chip 100 is stored, the control IC 111 causes the display unit to display characters or the like using the language indicated by the information. May be. Further, when the RFID chip 100 stores a phone book, the phone book may be stored in the storage unit. In addition, when the RFID chip 100 stores a ring tone, the control IC 111 may set the ring tone as a ring tone that is emitted when an incoming call is received. In addition, when the RFID chip 100 stores image data, the control IC 111 may set the image data as image data to be displayed at the time of incoming or standby. In addition, when the RFID chip 100 stores the IP address or URL of a computer connected via the communication network, the control IC 111 uses the IP address or URL as a bookmark (shortcut) of a connection destination via the communication network. You may memorize | store in a memory | storage means.

  When the detection unit 109 confirms that the RFID chip 100 is not installed in the vicinity (N in step S214), the control IC 111 executes the operation in the initial state. That is, the control IC 111 resets the setting when the key sheet 114 is removed and the detection unit 109 does not detect that the RFID chip 100 is installed nearby (step S215), and before the key sheet 114 is attached. The operation (initial operation) is executed.

  When another key sheet is attached thereafter, the cellular phone 200 installs the operation after step S101 of the first embodiment or the operation after step S201 of the present embodiment on the key sheet 114. This is performed in accordance with the information stored in the RFID chip 100 being stored.

  In addition, when the RFID chip installed on another attached key sheet stores information indicating the type of another language, the control IC 111 uses the language indicated by the information to display characters or the like on the display means. Is displayed. When the RFID chip stores another phone book, the phone book is stored in the storage means.

  According to the present embodiment, information such as a telephone directory is stored in the RFID chip 100, and the setting is reset when the detection unit 109 does not detect that the RFID chip 100 is installed nearby. It is possible to prevent other users who share 200 from browsing the phone book and the like to know personal information and the like.

  Further, since the key sheet 114 is configured to be replaceable, the design of the key portion of the mobile phone 200 can be changed as in the first embodiment. Information indicating the language of characters displayed on the key portion and the language of characters displayed on the display means, the characters printed on the key sheet 114, and the language type stored in the RFID chip 100 Can be changed based on

  In other words, when characters or the like are printed on the plastic plate 101 of the key sheet 114 in the language indicated by the language information stored in advance in the RFID chip 100, the character sheet is printed according to the language of the country to which the key sheet 114 is shipped. The language displayed by the display means of the mobile phone 200 to which the key sheet 114 is attached can be the same language as the printed language. Since different key sheets 114 can be attached to the common mobile phone 200 and shipped to different countries, the productivity of the mobile phone 200 can be improved.

  In addition, the user can be provided with an opportunity to select the key sheet 114 according to the language to be used.

  In the description of the present embodiment, the RFID chip 100 is described as storing a telephone directory and the like, but the present invention is not limited to this. For example, the storage unit of the mobile phone 200 stores a plurality of users' phone books and the like, and the RFID chip 100 stores information for identifying the user of the key sheet 114. Then, based on the information for identifying the user stored in the RFID chip 100, the control IC 111 may display only the user's telephone directory on the display means.

Embodiment 3 FIG.
A third embodiment of the present invention will be described. Since the configuration of the second embodiment of the present invention is the same as the configuration shown in FIGS. 1 and 2, the same reference numerals as those in FIGS.

  In the present embodiment, the RFID chip 100 is provided with information indicating the amount of money that can be used as money on a predetermined website (hereinafter referred to as amount information) by the manufacturer of the key sheet 114 and the website. The information indicating the IP address and URL of the computer being used and information for logging in to the website are recorded.

  Next, the operation of the third exemplary embodiment of the present invention will be described with reference to the drawings. FIG. 5 is a flowchart for explaining the operation of the third embodiment of the present invention.

  By the manufacturer of the key sheet 114, the RFID chip 100 is provided with the amount information, the information indicating the IP address or URL of the computer on which the website that can use the amount of money indicated by the amount information, and the web Information for logging into the site is recorded.

  In addition, the mobile phone 200 includes communication means (not shown) that transmits and receives information to and from a computer via a communication network.

  When the key sheet 114 is attached to the mobile phone 200 by the user who purchased the key sheet 114 (step S301), and the mobile phone 200 is turned on (step S302), the detection unit 109 is located near the RFID chip 100. Is detected (step S303).

  When the control IC 111 detects that the RFID chip 100 is installed in the vicinity, the control IC 111 displays a screen for allowing the user to select whether to perform an operation based on information stored in the RFID chip 100 on the display unit. Let

  When the user selects to perform an operation based on information stored in the RFID chip 100 (Y in step S304), the control IC 111 receives the information stored in the RFID chip 100 in the detection unit 109. (Step S305). The control IC 111 executes a process of logging in to the website via the communication network based on the information received from the RFID chip 100 by the detection unit 109 (step S306).

  When the metal dome 107 is pressed through the plastic plate 101 and the rubber sheet 103 and an instruction is input, the control IC 111 sends information indicating the instruction to a communication unit connected to a communication network such as a cellular phone communication network. A computer with a website is transmitted via a communication network.

  Specifically, when an instruction to purchase a product is input to the user, the control IC 111 sends information indicating that the product is to be purchased to the communication means via a communication network to the computer where the website is established. To send.

  When the user purchases a product (step S307), the control IC 111 sends the amount information indicating the amount obtained by subtracting the product purchase price from the amount indicated by the amount information stored in the RFID chip 100 to the detection unit 109. The data is stored in the chip 100 (step S308).

  When the detection unit 109 confirms that the RFID chip 100 is not installed in the vicinity (N in step S309), the control IC 111 executes the operation in the initial state. That is, the control IC 111 resets the setting when the key sheet 114 is removed and the detection unit 109 does not detect that the RFID chip 100 is installed nearby (step S310), and before the key sheet 114 is attached. The operation (initial operation) is executed. Then, the control IC 111 may erase the information stored in the storage unit.

  Note that when another key sheet is attached thereafter, the cellular phone 200 operates after step S101 of the first embodiment, operation after step S201 of the second embodiment, or this embodiment. The operations after step S301 are performed according to information stored in the RFID chip 100 installed on the key sheet 114.

  According to the present embodiment, since the key sheet 114 on which the RFID chip 100 storing the amount information and the like is installed is attached to the mobile phone 200, contents such as products and software are purchased via the communication network. be able to.

Embodiment 4 FIG.
Next, a fourth embodiment of the present invention will be described with reference to the drawings. FIG. 6 is a front view showing the configuration of the fourth embodiment of the game machine 300 to which the key sheet 114 according to the present invention is attached.

  A game machine 300 shown in FIG. 6 includes an upper housing 310 in which a display unit 303 for displaying information is installed, a lower housing 320 in which buttons for inputting instructions are installed, an upper housing 310 and a lower housing 320. And a hinge part 330 for connecting the two. Note that a storage medium 308 storing a game program is attached to the lower housing 320.

  A key sheet 114 having a cross section shown in FIG. 1 is attached to the lower housing 320 of the game machine 300 shown in FIG. And the structure of the lower housing | casing 320 is the same as that of the cross-sectional view illustrated in FIG. Therefore, the same components as those in the first embodiment are denoted by the same reference numerals as those in FIG.

  In the example shown in FIG. 6, a portion not printed on the plastic plate 101 is shown in white.

  In the RFID chip 100 according to the present embodiment, for example, information on the characters of the game and tools used for the characters in the game is recorded by the manufacturer of the key sheet 114.

  The control IC 111 in the present embodiment operates according to a game program stored in the storage medium 308. Then, via the detection unit 109, information such as the characters of the game stored in the RFID chip 100 and tools used for the characters in the game are read out and appear in the game, or the RFID chip 100 stores the information. The parameters of the characters are read and reflected in the game, or the parameters of the characters of the game are stored in the RFID chip 100.

  According to the present embodiment, the control IC 111 reads out information such as the characters of the game stored in the RFID chip 100 and tools used for the characters in the game via the detection unit 109. The stored information can be reflected in the game.

  Further, according to the present embodiment, the control IC 111 causes the RFID chip 100 to store the parameters of the game characters via the detection unit 109, so that the user installs the RFID chip 100 storing the information. The key sheet 114 can be carried and attached to another game machine. Therefore, the parameters of the characters of the game stored in the RFID chip 100 can be used in games executed on other game machines. Further, if the key sheet 114 is removed, it is possible to prevent others from operating the parameters of the characters in the game.

  In each embodiment described above, the key sheet 114 is attached to the mobile phone 200 and the game machine 300, but the present invention is not limited to this. The key sheet 114 may be attached to a portable electronic device such as a notebook personal computer, a PHS (Personal Handyphone System) terminal, and a PDA (Personal Data Assistance, Personal Digital Assistant).

  The present invention can be applied to portable electronic devices such as mobile phones, game machines, notebook personal computers, PHS terminals, and PDAs that change design and operation.

It is sectional drawing which shows the structure of the mobile telephone with which the key sheet | seat was attached. It is front transparent drawing of the mobile telephone with which the key sheet | seat was attached. It is a flowchart explaining operation | movement of 1st Embodiment. It is a flowchart explaining operation | movement of 2nd Embodiment. It is a flowchart explaining the operation | movement of 3rd Embodiment. It is a front view which shows the structure of the game machine to which the key sheet | seat was attached.

Explanation of symbols

100 RFID chip 101 Plastic plate 103 Rubber sheet 104 Protruding part 105 Keypad 106, 110 Connector 107 Metal dome 108 EL sheet 109 Detection part 111 Control IC
112 key FPC
113 Printed Circuit Board 114 Key Sheet 115 Case 116 Printed Part 117 Support 200 Mobile Phone 300 Game Machine 303 Display Unit 308 Storage Medium 310 Upper Case 320 Lower Case 330 Hinge Part

Claims (11)

In a portable electronic device in which a detachable key sheet covering the operation unit is attached to an operation unit in which a user inputs an instruction,
Information communication means for reading out information stored in a storage element installed in the key sheet;
A portable electronic device, comprising: a control unit that operates based on information read by the information communication unit. The portable electronic device according to claim 1, wherein the information communication unit stores information in a storage element. Including light emitting means for emitting light according to control of the control means,
The portable electronic device according to claim 1, wherein the key sheet allows light emitted by the light emitting means to pass therethrough. Including display means for displaying information,
The storage element stores language information indicating a language of information to be displayed on the display means,
The information communication means reads the language information stored in the storage element,
The portable electronic device according to any one of claims 1 to 3, wherein the control means causes the display means to display information in a language indicated by the language information read by the information communication means. The information communication means detects whether or not a storage element is installed in the vicinity,
The control means operates when the information communication means does not detect that the storage element is installed in the vicinity and transitions to a state before the storage element is installed in the vicinity. Item 5. The portable electronic device according to any one of items 4 to 4. The portable electronic device according to any one of claims 1 to 5, further comprising a communication unit that transmits and receives information to and from another computer via a communication network. The storage element stores amount information indicating the amount of money that can be used, and address information indicating the address of a computer connected via a communication network,
The communication means transmits / receives information to / from the computer based on the address information read from the storage element by the information communication means,
The control means calculates a usable amount according to the information transmitted and received by the communication means,
The portable electronic device according to claim 6, wherein the information communication unit stores amount information indicating the calculated amount in the storage element. In the key sheet that covers the operation part of the portable electronic device and is mounted so as to be removable,
A storage element for storing information and transmitting the stored information in response to a request of the portable electronic device;
A resin portion having a convex portion at each position corresponding to a plurality of buttons provided in the operation portion of the portable electronic device on a surface facing the portable electronic device;
The key sheet, wherein when the position of the resin portion corresponding to the button provided on the operation portion is pressed, the convex portion presses the button. The key sheet according to claim 8, wherein the resin part includes a rubber sheet having a convex part and a plastic plate on which information indicating a button provided in the operation part is displayed. In the setting change method for changing the setting of the portable electronic device,
An information communication step for reading information stored in a storage element installed on a key sheet that is mounted so as to cover an operation unit of the portable electronic device, and an information communication step;
A setting change method, characterized in that the control means comprises a control step that operates based on the information read by the information communication means in the information communication step. A setting change program installed in a portable electronic device in which a removable key sheet covering the operation unit is attached to an operation unit in which a user inputs an instruction,
On the computer,
An information communication process for reading out information stored in a storage element installed in the key sheet;
A setting change program for executing a control process that operates based on information read in the information communication process.

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