JP2010035058A - Mobile electronic apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a mobile electronic apparatus capable of transmitting/receiving data of large capacity while utilizing a structure of RFID. <P>SOLUTION: A mobile electronic apparatus (cellular phone 10) comprises: an operating unit 12; a first storage unit (storage unit 16); and an RFID unit 15 including a transmitting/receiving section 151 for exchanging information with an external device, a second storage section (RFID storage section 152), of which the capacity is smaller than that of the first storage unit, for storing at least a part of information, and a control section (RFID control section 150) for storing the information received by the transmitting/receiving section in the first storage unit and the second storage section in accordance with contents set and input via the operating unit. The control section carries out control for separating the information received by the transmitting/receiving section 151 into first information and second information, of which the information quantity is more than that of the first information, and for storing the first information in the second storage section and the second information in the first storage unit. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a portable electronic device having an RFID (Radio Frequency Identification) chip.

  In recent years, for example, by using an RFID mechanism, mobile phones capable of electronic payment using an integrated IC chip and antenna have come into circulation.

For example, Patent Document 1 discloses a mobile phone that can receive additional information such as a shelf life in addition to transmitting and receiving electronic money to and from an RFID reader / writer.
JP 2007-280065 A

  However, since the storage capacity of the above-mentioned RFID is usually about several hundred bytes, there is a problem that additional information exceeding several kilobytes cannot be received according to the technique disclosed in Patent Document 1 described above.

  An object of the present invention is to provide a portable electronic device, an external device, and a wireless communication system that can transmit and receive large amounts of data using an RFID mechanism.

  A portable electronic device according to a first aspect of the present invention is a portable electronic device that transmits and receives information wirelessly to and from an external device, and includes an operation unit, a first storage unit, and the external device. The transmission / reception unit for transmitting / receiving the information, the second storage unit having a smaller capacity than the first storage unit for storing at least a part of the information, and the transmission / reception unit according to the contents set and input via the operation unit Including an RFID control unit that stores the received information in each of the first storage unit and the second storage unit, wherein the RFID control unit stores the information received by the transmission / reception unit. The first information is separated into second information having a larger information amount than the first information, the first information is stored in the second storage unit, and the second information is stored in the first information. Control to be stored in the storage unit is executed.

  In the portable electronic device of the present invention, the RFID control unit stores the first information received from the external device in an encrypted state in the second storage unit of the RFID unit, and the encrypted information is encrypted. The second information may be decoded and stored in the first storage unit.

  In the portable electronic device of the present invention, the RFID control unit is based on third information set and input by the operation unit indicating the type of the second information stored in the first storage unit. The type of information transmitted to the external device may be controlled.

  In the portable electronic device of the present invention, the second information stored in the first storage unit by the RFID control unit is distributed by an information distribution device connected to the external device via a communication network. It is the information regarding the installation place of the external device.

  In the portable electronic device of the present invention, the transmission / reception unit receives third information specifying a type of the information transmitted from the external device, and the control unit is based on the third information. The information received from the external device is separated into first information and second information having a larger information amount than the first information, and the first information is stored in the second storage unit. Control for storing the second information in the first storage unit is executed.

  ADVANTAGE OF THE INVENTION According to this invention, it becomes possible to provide the portable electronic device which can transmit / receive large capacity data using the mechanism of RFID.

  FIG. 1 is a diagram showing an example of the external structure of a portable electronic device according to the first embodiment of the present invention. Here, a foldable mobile phone 10 is illustrated as a portable electronic device.

  As shown in FIG. 1, the mobile phone 10 includes an upper housing 101, a lower housing 102, and a hinge unit 103.

FIG. 1A is a diagram showing a state in which the mobile phone 10 is opened (open state), and FIG. 1B is a diagram showing a state in which the mobile phone 10 is folded (closed state). .
As shown in FIG. 1A, the display unit 14 is disposed on the upper casing 101 on one side that is not exposed to the outside when the cellular phone 10 shown in FIG. 1B is closed.
In the lower housing 102, the operation unit 12 is arranged on one surface that is not exposed to the outside in the closed state of the mobile phone 10 shown in FIG.

Note that an RFID (RFID unit 15 described later) indicated by a dotted line in the drawing is mounted on the lower housing 102.
The RFID unit 15 is an IC chip that transmits and receives information wirelessly to and from an external device (an RFID reader / writer 20 to be described later), details of which will be described later.

  The hinge portion 103 opens and closes the upper housing 101 and the lower housing 102, and allows the transition between the open state of the mobile phone 10 shown in FIG. 1 (a) and the closed state shown in FIG. 1 (b). It is a hinge mechanism which has.

The open / closed state of the mobile phone 10 is monitored by a built-in control unit (not shown), and the control unit, which will be described later, can detect the open / closed state of the mobile phone 10.
Specifically, the control unit detects a closed state by monitoring whether or not a detection switch (not shown) of the lower casing 102 is pressed by a projection (not shown) disposed on the upper casing 101, for example.
Specifically, the control unit determines that the detection switch is in the closed state if it is pressed, and the open state if it is not pressed.
The open / close detection is not limited to the switch, and may be various sensors.

  FIG. 2 is a block diagram showing an internal configuration of a signal processing system of the portable electronic device (mobile phone 10) according to the embodiment of the present invention.

  As shown in FIG. 2, the mobile phone 10 includes a communication unit 11, an operation unit 12, a voice CODEC (COder DECorder) unit 13, a display unit 14, an RFID unit 15, a storage unit 16, and a control unit. 17.

The communication unit 11 captures a wireless communication system, performs wireless communication with a base station (not shown) connected to the communication network, and transmits and receives various data.
The various data includes voice data during a voice call, mail data during mail transmission / reception, page data during web browsing, and the like.

The operation unit 12 includes keys to which various functions are assigned, such as a power key, a call key, a numeric key, a character key, a direction key, a determination key, a call key, and a function key.
When these keys are operated by the user, the operation unit 12 generates a signal corresponding to the operation content and outputs the signal to the control unit 17 as a user instruction.

The audio CODEC unit 13 performs input / output processing of an audio signal output from the speaker 131 and an audio signal input from the microphone 132.
That is, the audio CODEC unit 13 amplifies the audio input from the microphone, performs analog-digital conversion, further performs signal processing such as encoding, converts it into digital audio data, and outputs the digital audio data to the control unit 17.
The audio CODEC unit 13 performs signal processing such as decoding, digital-analog conversion, and amplification on the audio data supplied from the control unit 17, converts the audio data into an analog audio signal, and outputs the analog audio signal to the speaker.

The display unit 14 is configured by arranging a large number of pixels (a combination of light emitting elements of a plurality of colors) vertically and horizontally, for example, an LCD (Liquid Crystal Display Device) or an organic EL (Electro-Luminescence).
Is used and configured.
The display unit 14 displays an image corresponding to display target data such as a document generated by the control unit 17 and written in a predetermined area (VRAM area) of the storage unit 16. In addition, here, a GUI screen whose example screen configuration is shown in FIG. 6 is also displayed.

  The RFID unit 15 has a wireless communication interface with an external device (an RFID reader / writer 20 described later) that is mounted on, for example, the lower housing 102 of the mobile phone 10 and connected wirelessly. The RFID unit 15 is connected to a control unit 17 that is connected by wire. Details of the internal configuration and the like will be described later with reference to FIG.

The storage unit 16 stores various data used for various processes of the mobile phone 10.
For example, a computer program executed by the control unit 17 is stored in the storage unit 16.
The storage unit 16 includes an address book for managing personal information such as the telephone number and e-mail address of the communication partner, a voice file for playing ringtones and alarm sounds, an image file for a standby screen, various setting data, Temporary data used in the process of the program is stored.
Here, the storage unit 16 further includes transmission / reception information that is operated and input via the operation unit 12 as history information (second information) at least a part of the information received by the RFID unit 15 from the external device. The type information is stored as setting information (third information).
The storage unit 16 includes, for example, a nonvolatile storage device (nonvolatile semiconductor memory, hard disk device, optical disk device, etc.), a random accessible storage device (eg, SRAM, DRAM), or the like.

The control unit 17 comprehensively controls the overall operation of the mobile phone 10.
That is, the control unit 17 operates the operation unit 12 to perform various processes of the mobile phone 10 (voice calls performed via a circuit switching network, creation and transmission / reception of e-mail, browsing of the Internet Web (World Wide Web) site, etc. The operation of each control block described above is controlled so as to be executed in an appropriate procedure according to the above.
The control unit 17 controls transmission / reception of signals in the communication unit 11, capturing of operation inputs from the operation unit 12, audio input / output in the audio CODEC unit 13, image display on the display unit 14, and the RFID unit 15. Information transfer.
The control unit 17 includes a microprocessor that executes processing based on programs such as an operating system and application programs stored in the storage unit 16, and executes the above-described processing according to a procedure instructed by these programs. .
That is, the control unit 17 sequentially reads instruction codes from programs such as an operating system and application programs stored in the storage unit 16 and executes processing.

  FIG. 3 is a block diagram showing an internal configuration of the RFID unit 15 shown in FIG. As shown in FIG. 3, the RFID unit 15 includes an RFID control unit 150, a transmission / reception unit 151, and a storage unit 152.

  The transmission / reception unit 151 transmits / receives information to / from an external device. The storage unit 152 stores at least a part of information to be transmitted and received (information that requires encryption), and is a second storage having a smaller capacity than the storage unit 16 included in the mobile phone 10 as a first storage unit described later Part.

The RFID control unit 150 stores the information received by the transmission / reception unit 151 in the storage unit 16 of the mobile phone 10 and the storage unit 152 built in the RFID unit 15 according to the contents set and input via the operation unit 12.
The transmission / reception unit and the storage unit 152 described above are commonly connected to an internal bus 153 included in the RFID control unit 150.

The RFID unit 15 has a communication interface with an external device that is wirelessly connected via the transmission / reception unit 151, and is connected to the control unit 17 of the mobile phone 10 by wire.
For this reason, the RFID control unit 150 separates the information received by the transmission / reception unit 151 into first information and second information having a larger information amount than the first information, and stores the first information in the storage unit 152. In addition, control is performed to store the second information in the storage unit 16 of the mobile phone 10.
Here, for example, in the case of receipt information, the “first information” is information such as a shopping amount, and the “second information” is compared with the first information such as a product name or a store name. Additional information with a large data size.

In addition, the RFID control unit 150 stores the first information received from the external device in the encrypted state in the storage unit 152, decrypts the second information, and stores it in the storage unit 16 of the mobile phone 10.
The RFID control unit 150 controls the type of information to be transmitted to the external device based on the third information set and input by the operation unit 12 indicating the type of second information stored in the storage unit 16.

FIG. 4 is a block diagram showing the internal configuration of the external device. Here, an RFID reader / writer 20 is shown as an external device.
As shown in FIG. 4, the RFID reader / writer 20 includes a control unit 21, a storage unit 22, and a wireless transmission / reception unit 23 on a bus 24 including a plurality of lines for address, data, and control. Commonly connected and configured.

The control unit 21 executes various processes based on response data and commands wirelessly transmitted from the RFID unit 15.
In particular, here, prior to transmission / reception of information by the wireless transmission / reception unit 23, setting information specifying the type of information input from the mobile phone 10 via the operation unit 12 is received, and RFID is used in accordance with the received setting information. Information to be transmitted to the unit 15 is selectively transmitted.

The wireless transmission / reception unit 23 includes a signal processing unit 231 and a modem unit 232.
When the response data is supplied from the RFID unit 15 via the modulation / demodulation unit 232, the signal processing unit 231 performs, for example, BPSK (Binary Phase Shift Keying) modulation on the data and sends the acquired data via the bus 24. Is then handed over to the control unit 21.
Further, when a command transmitted from the control unit 21 to the RFID unit 15 is supplied via the bus 24, the signal processing unit 231 performs BPSK modulation on the command and outputs the acquired data to the modulation / demodulation unit 232.

The modulation / demodulation unit 232 modulates, for example, ASK (Amplitude Shift Keying) based on the data supplied from the control unit 21 on a carrier wave having a predetermined frequency supplied from a transmission circuit (not shown), and uses the generated modulated wave as an electromagnetic wave. Output from the antenna.
The modem unit 232 further demodulates the modulated wave acquired via the antenna, and delivers the demodulated data to the control unit 21 via the signal processing unit 23.

  FIG. 5 is a flowchart showing the operation of the portable electronic device according to the embodiment of the present invention.

  Hereinafter, the operation of the portable electronic device shown in FIGS. 1 to 3 will be described in detail with reference to the flowchart of FIG.

Prior to transmission / reception with the external device 20, the mobile phone 10 waits for a setting information acquisition request issued from the control unit 21 of the RFID reader / writer 20 (step S501 “Yes”), and registers the setting information (step S501). S502).
Here, the setting information is information indicating the type of transmission / reception information stored in the storage unit 16 of the mobile phone 10 and is information set in advance by the user and stored in the storage unit 16 of the mobile phone 10.
For this reason, for example, as shown in FIG. 6A, the mobile phone 10 registers setting information using the operation unit 12 and the display unit 14 before communication of information with the external device 20. A user interface needs to be provided.
Here, as selection elements of the transmission / reception information indicated in the setting information, for example, there are a product name / amount, a total amount, a transaction date and time, a store name, a product classification, a point, and the like.
The user selects the type of transmission / reception information to be transmitted to the RFID reader / writer 20 among the selection elements of the transmission / reception information displayed on the display unit 14 (a check mark is given), and the control unit 17 captures the selection element. Is stored in the setting area of the storage unit 16.

Next, the RFID control unit 150 waits for the transmission / reception information transmission request issued by the RFID reader / writer 20 (step S503 “Yes”), and starts receiving transmission / reception information based on the previously registered setting information (step S503). Step S504).
That is, the RFID control unit 150 communicates with the control unit 17 and displays, for example, a communication instruction screen illustrated in FIG. 6B on the display unit 14.
The user presses a button (Yes) assigned to the communication instruction screen displayed on the display unit 14.
As a result, the wireless communication of the transmission / reception information is started between the RFID reader / writer 20 and the RFID unit 15, and the RFID reader / writer 20 sends the corresponding information to the RFID unit 15 according to the setting information acquired from the mobile phone 10. Send and receive information.

That is, the control unit 21 of the RFID reader / writer 20 transmits only transmission / reception information corresponding to the information type of the setting information to the mobile phone 10 (RFID unit 15).
The RFID control unit 150 of the RFID unit 15 that has received the transmission / reception information via the transmission / reception unit 151 includes, for example, total amount information and other information such as product name, transaction date / time, store name, product classification, and points. To separate.
The RFID control unit 150 encrypts the total amount information (second information) in the storage unit 152 built in the RFID unit 15 and transmits other information (first information) to the storage unit 16 of the mobile phone 10. Control for decoding and storing in the history area is executed (step S505).
The above operation is repeatedly executed until a transmission / reception transmission end request is received (step S506 “Yes”), and the RFID control unit 150 communicates with the control unit 17 at a timing when the transmission / reception transmission end request is received.
At this time, for example, an end notification screen shown in FIG. 6C is displayed on the display unit 14.

According to the above-described portable electronic device according to the embodiment of the present invention, transmission / reception information can be stored in the storage unit 16 included in the mobile phone 10, and a larger amount than when stored in the storage unit 152 of the RFID unit 15. Can be stored.
At this time, since the history information can be handled with the security lock on the storage unit 152 of the RFID unit 15, the convenience is improved.
When the control unit 17 desires the second information, the control unit 17 can access the second information by accessing the storage unit 16. Therefore, an improvement in the access speed to the second information by the control unit 17 can be expected.
In particular, conventionally, in order to access the storage unit 152 of the RFID unit 15, it is necessary to release the lock, and in this case, an application for access is required.
On the other hand, according to the portable electronic device according to the embodiment of the present invention, a dedicated application is not required, and communication with the server is not required to access the history, thereby reducing processing time. Can also contribute.

Further, by limiting the information acquired by communication from the RFID reader / writer 20 according to the setting by the user, it is possible to reduce the communication processing time without wasting the finite storage unit 16 area with useless information. An electronic device can be provided.
In addition, according to the portable electronic device which concerns on embodiment of this invention, the expansion | deployment of the information from the transmission / reception information acquired here to a household account book application etc., extraction of a user preference, creation of an activity map, etc. are also possible.

7 and 8 are sequence diagrams showing operations of the radio communication system according to the embodiment of the present invention.
7 and 8, the display unit 14 of the mobile phone 10, the history information 16 a and the setting information 16 b of the storage unit 16, the RFID control unit 150 of the RFID unit 15, the transmission / reception unit 151, and the RFID reader / writer 20 are illustrated. The flow of operation is shown.
The operation of the radio communication system according to the embodiment of the present invention shown in FIGS. 1 to 4 will be described in detail below with reference to the sequence diagrams of FIGS.

First, the RFID unit 15 of the mobile phone 10 performs a handshake based on a predetermined procedure with the control unit 21 of the RFID reader / writer 20 in order to start communication with the RFID reader / writer 20 (steps S701 and S702). ).
When the above-described handshake is normally completed and connection between the two is started (step S703), test transmission / reception data is transferred between the transmission / reception unit 151 of the RFID unit 15 and the RFID control unit 150.
The connection is completed when the data transfer ends normally (step S704).

It is assumed that the RFID reader / writer 20 transmits a transmission / reception start request to the RFID unit 15 of the mobile phone 10 at this timing (step S705).
When receiving the transmission / reception start request via the transmission / reception unit 151, the RFID unit 15 (RFID control unit 150) of the mobile phone 10 responds to the RFID reader / writer 20 with transmission / reception information reception availability data (step S706).
The RFID controller 150 transmits a response “OK” when “transmission / reception information reception is possible”, and a response “NG” when “transmission / reception information reception is not possible”.

Next, the RFID reader / writer 20 that has received the response “OK” to the transmission / reception transmission / reception start request from the RFID unit 15 transmits a setting information acquisition request to the RFID unit 15 (step S707).
Upon receiving the setting information acquisition request, the RFID control unit 150 of the RFID unit 15 reads the registered setting information from the storage unit 16 of the mobile phone 10 and transmits the setting information to the RFID reader / writer 20 via the transmission / reception unit 151. (Step S708).
Thereafter, wireless communication of transmission / reception information is started between the RFID reader / writer 20 and the RFID unit 15, and the RFID reader / writer 20 transmits the corresponding type of transmission / reception information to the RFID unit 15 according to the setting information acquired from the mobile phone 10. (Step S709).

That is, the RFID reader / writer 20 transmits only transmission / reception information corresponding to the information type of the setting information to the RFID unit 15 of the mobile phone 10 (step S710).
The RFID control unit 150 that has received the transmission / reception information via the transmission / reception unit 151 checks the received transmission / reception information and makes a transmission / reception information reception response (step S711).
At this time, the RFID control unit 150 separates the transmission / reception information received by the transmission / reception unit 151 into, for example, total amount information and other information such as product name, transaction date / time, store name, product classification, and points.
In a state where the total amount information is encrypted in the RFID storage unit 152 built in the RFID unit 15, control is performed to decrypt and store other information in the history information 16 a of the storage unit 16 of the mobile phone 10.
The above operation is repeatedly executed for all transmission / reception information (1) to (n) corresponding to the setting information (steps S712 to S714).

After transmitting the series of transmission / reception information described above, the RFID reader / writer 20 notifies the RFID unit 15 of the mobile phone 10 of the end of data transmission (step S715).
The RFID unit 15 stores the second information in the storage unit 16 of the mobile phone 10 at the timing when the RFID control unit 150 receives this data transmission end, and sends a data transmission end response to the RFID reader / writer 20 (step S716). .
The RFID unit 15 communicates with the control unit 17 and displays an end notification screen on the display unit 14.
Receiving the data transmission end response, the RFID reader / writer 20 issues a transmission / reception end request to the RFID unit 15 of the mobile phone 10 (step S717).
In response to this, the RFID unit 15 makes a transmission / reception response and ends the series of processes described above (step S718).

According to the above-described radio communication system according to the embodiment of the present invention, the second information can be stored in the storage unit 16 included in the mobile phone 10, and a larger amount of information than when stored in the RFID unit 15. Can be stored.
At this time, since the security lock is still applied to the RFID unit 15, the history information can maintain confidentiality. When the control unit 17 desires the second information, the control unit 17 can access the second information by accessing the storage unit 16. Therefore, an improvement in the access speed to the second information by the control unit 17 can be expected.
In addition, by restricting information acquired by communication from the RFID reader / writer 20 according to settings by the user, wireless communication that wastes a limited area of the storage unit 16 with useless information and shortens the communication processing time. A system can be provided.

  FIG. 9 is a configuration diagram showing a system application example when the radio communication system according to the embodiment of the present invention is installed in a station premises.

As shown in FIG. 9, the RFID reader / writer 20 is mounted on, for example, an automatic ticket gate of a station ticket gate, and the entrance ticket gate is controlled by holding a mobile phone 10 serving as a ticket over a sensor surface (not shown). The
The mobile phone 10 has a Web connection function, and is connected to a communication network 60 such as an IP (Internet Protocol) network via the base station device 40.
On the other hand, the automatic ticket gate is connected to a communication network 60 via a station premises server 30, and a regional information distribution server 50 is further connected to the communication network 60.

The regional information distribution server 50 distributes regional information around the station.
When the user who has the mobile phone 10 arrives at the getting-off station and holds the mobile phone 10 having the RFID unit 15 over the sensor surface of the automatic ticket checker, regional information such as restaurants, karaoke boxes, taverns, etc. around the station Can be received.
In that case, the memory | storage part 16 which the mobile telephone 10 has memorize | stores the area information mentioned above. If all the information of the city at the disembarking station cannot be received due to the limitation of the storage capacity of the storage unit 16, the information is limited based on the contents of the hobby column stored in the profile information of the mobile phone 10, for example. It is also possible.
For example, when the hobby is “tennis”, information related to location information of a tennis court or a sports shop is selected and received.

  According to the application system of the wireless communication system according to the above-described embodiment of the present invention, it is possible to easily receive the regional information to be distributed, and further filter the content by profile information or the like, thereby limiting the finite memory. Resources can be used effectively.

Although only the mobile phone 10 is illustrated as the portable electronic device according to the above-described embodiment of the present invention, the present invention is not limited to the mobile phone 10 and can be similarly applied to PDA (Personal Digital Assistants), game machines, and the like. It is.
Further, only the RFID reader / writer 20 is illustrated as an external device, but any device that can communicate with the RFID unit 15 of the mobile phone 10 instead of the terminal having the RFID reader / writer or the RFID reader / writer 20 may be used.

In addition, the functions of the constituent blocks included in the portable electronic device according to the embodiment of the present invention may be realized entirely by software, or at least a part thereof may be realized by hardware.
For example, in the mobile phone 10, the information received by the transmission / reception unit (RFID transmission / reception unit 151) is separated into first information and second information having a larger information amount than the first information. Data processing in the control unit (RFID control unit 150) that executes control for storing the second information in the second storage unit (RFID storage unit 152) in the first storage unit (storage unit 16) is 1 or It may be realized on a computer by a plurality of programs, or at least a part thereof may be realized by hardware.
Note that the mobile phone 10 may receive the third information from the RFID reader / writer 20, and the first information and the second information may be separated based on the third information.

It is a figure which shows an example of the external appearance structure of the portable electronic device which concerns on embodiment of this invention. It is a block diagram which shows the internal structure of the electric system of the portable electronic device which concerns on embodiment of this invention. It is a block diagram which shows the internal structure of the RFID part which the portable electronic device which concerns on embodiment of this invention has. It is a block diagram which shows the internal structure of the external device which comprises the radio | wireless communications system which concerns on embodiment of this invention. It is a flowchart which shows operation | movement of the portable electronic device which concerns on embodiment of this invention. It is a figure which shows an example of the display screen structure displayed on the display part of the portable electronic device which concerns on embodiment of this invention. It is a sequence diagram which shows operation | movement of the radio | wireless communications system which concerns on embodiment of this invention. It is a sequence diagram which shows operation | movement of the radio | wireless communications system which concerns on embodiment of this invention. It is a figure which shows an example of the application system of the radio | wireless communications system which concerns on embodiment of this invention.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 10 ... Mobile phone, 11 ... Communication part, 12 ... Operation part, 13 ... Audio | voice CODEC part, 14 ... Display part, 15 ... RFID part, 16 ... Memory | storage part (1st memory | storage part), 17 ... Control part, 20 ... External device (RFID reader / writer), 21 ... control unit, 22 ... storage unit, 23 ... wireless transmission / reception unit, 30 ... station premises server, 40 ... base station device, 50 ... regional information distribution server, 60 ... communication network, 150 ... RFID control unit 151... Transmission / reception unit 152 152 storage unit (second storage unit) 231 signal processing unit 232 modulation / demodulation unit

Claims (5)

A portable electronic device that wirelessly transmits and receives information to and from an external device,
An operation unit;
A first storage unit;
A setting is input via a transmission / reception unit that transmits / receives the information to / from the external device, a second storage unit that has a smaller capacity than the first storage unit that stores at least a part of the information, and the operation unit. An RFID unit including an RFID control unit that stores information received by the transmission / reception unit in each of the first storage unit and the second storage unit according to the content of
The RFID control unit
The information received by the transmission / reception unit is separated into first information and second information having a larger information amount than the first information, and the first information is stored in the second storage unit. Control for storing the second information in the first storage unit is executed. The RFID control unit
The first information received from the external device is stored in the second storage unit in the RFID unit in an encrypted state, and the encrypted second information is decrypted to the first storage unit. The portable electronic device according to claim 1, wherein the portable electronic device is stored in the portable electronic device. The RFID control unit
The type of information to be transmitted to the external device is controlled based on the third information set and inputted by the operation unit indicating the type of the second information stored in the first storage unit. The portable electronic device according to claim 1 or 2. The second information stored in the first storage unit by the RFID control unit is information relating to an installation location of the external device distributed by an information distribution device connected to the external device via a communication network. The portable electronic device according to any one of claims 1 to 3, wherein The transceiver unit is
Receiving third information identifying the type of information transmitted from the external device;
The controller is
Based on the third information, the information received from the external device is separated into first information and second information having a larger information amount than the first information, and the first information is The portable electronic device according to any one of claims 1 to 3, wherein the second storage unit executes control to store the second information in the first storage unit. .

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