JP2008071012A - Communication terminal and data updating system, and program - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To enable a communication terminal at a transmission side to control whether to update data stored and managed at a communication terminal at a reception side when data is transmitted and received between the communication terminals and is changed thereafter. <P>SOLUTION: A portable telephone device 1 when receiving by infrared communication (direct communication), data (profile data) before being updated, transmitted from the portable telephone device 1 of the other party and information (decoding key) showing the right and wrong of update of the data, relates the data to the information showing the right and wrong of the update and stores them into in an address book storage part. Afterwards, when receiving update instruction mail transmitted from the portable telephone device 1 of the other party through the Internet 5, the portable telephone device 1 judges the right and wrong of the update of the data based on whether or not the information showing the right and wrong of the update is stored in the address book storage part, and updates the data under such conditions that the update is permitted. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a communication terminal device, a data update system, and a program that perform data update.

 In recent years, mobile phone devices have various functions, such as profile data introducing themselves, address book data such as telephone numbers and email addresses of communication partners, schedule data such as action schedules, photographed images, etc. Data is stored and managed. On the other hand, there is also known a device equipped with a direct communication function for exchanging profile data, schedule data, etc. in a one-to-one relationship with a counterpart mobile phone device using an infrared communication function. In this case, after exchanging profile data, schedule data, etc., when the data is changed, in addition to updating its own data, it is necessary to update the other party's previously transmitted data as well.

Therefore, conventionally, for example, the following technique is known as a method for updating own data and updating the other party's data in the same manner. That is, a terminal downloaded in the past is stored and managed as a search history for each address book data (personal information) such as an email address, a telephone number, an address, etc., and when any personal information is updated, A technique is known in which a terminal that has searched information is specified and personal information after change is transmitted to the terminal (see Patent Document 1).
JP 2001-5832 A

 However, when personal information is updated due to e-mail address change, address change, etc., it is appropriate to unconditionally transmit the updated personal information to all terminals that have searched personal information even once in the past is not. That is, the updated personal information is transmitted to the partner who has notified the information before the change but does not want to notify the updated information.

  An object of the present invention is to enable the transmission side to control whether or not to update the data stored and managed on the reception side when data previously transmitted and received between the communication terminals is subsequently changed. It is to be.

The invention described in claim 1 is a communication terminal apparatus that receives and stores data transmitted from a counterpart terminal, and updates the data in response to an update instruction from the transmission source. When data before update to be transmitted and update control information indicating whether or not the data can be updated are received, data storage means for storing and managing the data and update control information in association with each other, and transmitted from the counterpart terminal When an update instruction is received, a determination unit that determines whether or not update is possible by referring to the update control information, and when the determination unit determines that the update is permitted, the data before the update is updated. And a data updating means.
Furthermore, a program for realizing the main functions shown in the invention described in claim 1 is provided to the computer (the invention described in claim 12).

The invention described in claim 1 described above may be as follows.
When receiving the transmission source identification information in addition to the pre-update data transmitted from the counterpart terminal, the data storage means stores and manages the identification information including the identification information, and is transmitted from the counterpart terminal. When the transmission source identification information is received together with the update instruction, the determination unit searches the data storage unit based on the identification information to identify the corresponding update control information and determines whether or not the update is possible (claim). Item 2). In this case, the data before the update may be configured to include the transmission source identification information in a part thereof (the invention according to claim 3).

 The determination means determines whether or not update is possible based on a decryption key stored and managed as the update control information. When the updated data encrypted from the counterpart terminal is received, the determination means updates the update data. If it is determined that the data is permitted, the data updating unit decrypts the encrypted updated data based on the decryption key, and the pre-update data based on the decrypted updated data. The data of the above is updated (invention of claim 4). In this case, when the data updating unit replaces the data before update with the updated data decrypted based on the decryption key, the transmission source identification information and the encryption included in the data before update are encrypted. The transmission source identification information added to the updated data that has been updated may be collated, and the data may be updated on the condition that both are matched (the invention according to claim 5).

 The data before update is data transmitted / received by direct communication between communication terminal devices, and the data after update is data transmitted to a plurality of counterparts (invention of claim 6).

According to the seventh aspect of the present invention, the data is stored and saved in the communication terminal on the receiving side by performing transmission / reception of data between the communication terminal devices, and then the data is updated in the communication terminal on the transmitting side. A data updating system for transmitting the updated data to the receiving communication terminal when the transmitting communication terminal can update the receiving communication terminal together with the data before updating. A first transmission unit that transmits update control information indicating the update data, and a second transmission unit that transmits the updated data to the receiving communication terminal when the data before the update is updated. The receiving-side communication terminal stores and manages the data and the update control information in association with each other when the pre-update data and the update control information transmitted from the transmission-side communication terminal are received. Memory And a determination means for determining whether or not update is possible by referring to the update control information when the updated data transmitted from the communication terminal on the transmission side is received, and the update is permitted by the determination means. And a data updating means for updating the data before updating when it is determined that the data is updated.
Furthermore, a program for realizing the main functions shown in the above-described invention according to claim 7 is provided to the computer (the invention according to claim 13).

The invention described in claim 7 described above may be as follows.
In the transmission-side communication terminal, the first transmission means transmits, as update control information, a decryption key for decrypting encrypted data together with the data before update to the reception destination, and the second transmission means includes: The updated data is encrypted with an encryption key and transmitted to the reception destination. In the communication terminal on the receiving side, the determination means determines whether the decryption key is stored and managed as the update control information. When it is determined that the update is permitted by the determination unit, the data update unit receives the updated data encrypted from the counterpart terminal. The updated data is decrypted based on the decryption key, and the pre-update data is updated based on the decrypted updated data (the invention according to claim 8).

 In this case, when the transmission side communication terminal stores and manages the pre-update data and the decryption key in an external recording medium that is detachably attached to the apparatus main body, the first transmission means The pre-update data and the decryption key read from the external recording medium may be transmitted to the receiving destination (the invention according to claim 9). The external recording medium may be a recording medium in which at least a subscriber telephone number is recorded as subscriber information (the invention according to claim 10).

 The data before update is data transmitted / received by direct communication between communication terminal apparatuses, and the data after update is data transmitted to a plurality of counterparts (invention according to claim 11).

  The present invention controls the transmission side to control whether or not to update the data stored and managed on the receiving side when data previously transmitted and received between the communication terminals is changed thereafter. Appropriate updating is possible according to the situation.

Embodiments of the present invention will be described below with reference to FIGS.
FIG. 1 is a block diagram showing a communication network system (data update system) in a mobile phone device applied as a mobile terminal device.
The cellular phone device 1 is connected to a portable wireless communication network (public mobile communication network) 4 from the nearest base station 2 and exchange 3 and is also connected to the Internet 5 via the portable wireless communication network 4. Electronic mail can be transmitted and received via the Internet 5. The mobile phone device 1 includes a call function, an e-mail function, an Internet connection function (Web access function), etc., profile data that introduces itself, address book data such as a telephone number and mail address of a communication partner, an action schedule A data management function for storing and managing schedule data and an infrared communication function are provided, and profile data and the like are directly communicated with other mobile phone devices 1 by performing one-to-one infrared communication. .

  The mail server 6 stores and manages the email addresses of each registered member (subscriber), and when receiving an email addressed to each registered member via the Internet 5, it identifies the destination email address and the like, A received mail is transmitted to the destination mobile phone device 1 through the exchange 3 and the base station 2, but this received mail is temporarily stored when the destination mobile phone device 1 is out of service area or in a power-off state. . In addition, when the mail server 6 receives an update instruction mail (described later) transmitted from any mobile phone device 1, the mail server 6 broadcasts the mail to a plurality of people with reference to a mailing list (not shown). Each is sent as an email. In this mailing list, for example, each person's e-mail address, which is previously listed in his / her address book, is registered as a destination of the broadcast e-mail.

FIG. 2 is a block diagram showing basic components of the mobile phone device 1.
The central control unit 11 controls the overall operation of the cellular phone device according to various programs in the ROM 12. The program area of the ROM 12 stores a program for realizing the present embodiment in accordance with operation procedures shown in FIGS. The RAM 13 is an internal memory having a work area, for example, and is provided with a profile storage unit TA, an address book storage unit TB, and the like which will be described later. The contents stored in the profile storage unit TA and the address book storage unit TB are saved in a nonvolatile memory (for example, a flash memory) as necessary.

  The wireless communication transmitting / receiving unit 14 takes in a signal from the receiving side of the transmitting / receiving unit (baseband unit) connected to the antenna and demodulates the signal into a received baseband signal, and then transmits audio from the receiving speaker 16 via the audio signal processing unit 15. Output. Further, the wireless communication transmitting / receiving unit 14 takes in the audio data input from the transmission microphone 17 from the audio signal processing unit 15, encodes it into a transmission baseband signal, gives it to the transmitting side of the transmitting / receiving unit, and transmits it from the antenna Output. On the other hand, the display data received and acquired via the wireless communication transmitting / receiving unit 14 by the electronic mail function and the Internet connection function is given to the display unit 18 and displayed.

  The display unit 18 includes a main display unit and a sub display unit. In other words, the display unit 18 is located on the inner side (user side) of the display unit casing in a state in which the foldable apparatus main body to which two casings (the operation unit casing and the display unit casing) are detachably attached is opened. The main display unit is arranged and a sub display unit arranged outside the display unit casing. The infrared communication transmitting / receiving unit 19 exchanges profile data and the like with the other party's mobile phone device 1 by direct communication. For example, the data is safe and reliable by one-to-one communication within a short distance of 1 m or less. To send and receive. The operation unit 20 performs dial input, character input, command input, and the like, and can perform power on / off operation, telephone transmission operation, mail transmission operation, and the like. Performs processing according to the key input signal. An RTC (real time clock module) 21 constitutes a clock unit, and the central control unit 11 acquires the current date and time from the RTC 21.

FIG. 3 is a diagram for explaining the profile storage unit TA.
The profile storage unit TA stores and manages profile data arbitrarily input and set by the user. The “name”, “phone number”, “email address”, “home address”, “work name”,. Each item. The profile data is directly transmitted to the other mobile phone device 1 by performing infrared communication with the other mobile phone device 1. On the mobile phone device 1 side that has received and acquired this profile data, this profile data is set and registered as address book data.

 When the profile data is transmitted and received between the mobile phone devices 1 by infrared communication (direct communication) as described above, the mobile phone device 1 that is the transmission source is hereinafter referred to as a transmission-side terminal 1t, and Hereinafter, the cellular phone device 1 that is a receiving destination is referred to as a receiving terminal 1r. In this case, the transmission-side terminal 1t can arbitrarily instruct whether or not to transmit a “decryption key” to be described later depending on who the communication partner is, and the transmission of the “decryption key” is instructed by user designation. In such a case, the “decryption key” is added to the profile data for transmission. This decryption key is a decryption key that can decrypt data encrypted with an encryption key described later. In addition, when receiving the “decryption key”, the receiving side terminal 1r stores and manages the profile data as address book data in association with the “decryption key”.

 The transmitting side terminal 1t transmits its own profile data to the receiving side terminal 1r by infrared communication, and when the contents of the profile storage unit TA are updated along with the change of the e-mail address or the like, An update instruction mail with data attached is created and transmitted to the mail server 6. At that time, the transmission side terminal 1t encrypts and transmits the updated data as a security measure, and this encryption uses an “encryption key” stored in the profile storage unit TA. Is done by.

FIG. 4 is a diagram showing data attached to the update instruction mail transmitted to the mail server 6 when the own profile data is updated in the transmission side terminal 1t.
In this case, in the figure, the data items indicated by hatching indicate the updated profile data encrypted by the “encryption key”. The data distributed from the sending terminal 1t to the receiving terminal 1r via the mail server 6 includes “update identification information” and “phone number” as well as “name” and “phone number” as updated profile data. ”,“ Mail address ”,“ Home address ”,“ Work name ”, and so on.

 In the profile data, for example, when only “e-mail address” is changed, only the changed item may be transmitted in an encrypted form. Then, not only the change items are transmitted, but all items including non-change items are encrypted and transmitted. Here, “update identification information” added to the header portion of the profile data is information indicating that subsequent data is updated data, and “phone number” is profile data by infrared communication. Is the terminal identification information (transmission source identification information) for identifying the transmitting side terminal 1t that has transmitted the "update identification information" and the "telephone number" as the terminal identification information are unencrypted plaintext information It is.

FIG. 5 is a diagram for explaining the address book storage unit TB, and in the illustrated example, shows the address book storage unit TB provided in the receiving terminal 1r.
The address book storage unit TB stores and manages the address book data (address book record) for each communication partner, and the contents of each item constituting the address book data are data input or set arbitrarily by a user operation or Profile data received from the sending terminal 1t by infrared communication is automatically registered as address book data, and is “record No”, “name”, “phone number”, “mail address”, “home address”, “home address”, “ “Work name”, etc.

 The address book storage unit TB stores and manages “decryption keys” corresponding to arbitrary address book data. This “decryption key” is automatically registered when the profile data with the “decryption key” is received by the infrared communication described above. In the example shown in the figure, the “decryption key” is registered in the third record. And the case where it is not registered in the second record is shown. Here, the presence / absence of registration of the “decryption key” indicates whether or not to update the data before the update with the data after the update, and the central control unit 11 determines that the “decryption key” is registered. The updating of the corresponding address book data is permitted, and if it is not registered, the updating of the corresponding address book data is prohibited. In other words, the “decryption key” is also used as update control information indicating whether update of address book data is permitted or prohibited, and when decrypting encrypted data and determining whether update is possible Used for.

 The transmitting side terminal 1t that has transmitted its own profile data in this way updates the data (encrypted data) attached when the contents of some or all items are updated by editing the data. An instruction mail is created and transmitted to the mail server 6. When the mail server 6 receives the update instruction mail, the mail server 6 distributes it to each person as a broadcast mail, and the receiving terminal 1r that has received the update instruction mail searches its address book storage unit TB and responds. Whether or not update is possible is determined based on whether or not the “decryption key” is registered in the address book data to be updated. If the update is permitted, the received updated data (encrypted data) is the “decryption key”. After decrypting using, the address book data before update is replaced.

  Next, the operation concept of the cellular phone device 1 in this embodiment will be described with reference to the flowcharts shown in FIGS. Here, each function described in these flowcharts is stored in the form of a readable program code, and operations according to the program code are sequentially executed. In addition, the operation according to the above-described program code transmitted via the transmission medium can be sequentially executed. In other words, in addition to the recording medium, an operation peculiar to this embodiment can be executed by using a program / data supplied externally via a transmission medium.

FIG. 6 is a flowchart showing the overall operation of the cellular phone device (transmission side terminal and reception side terminal) 1 that starts to be executed when the power is turned on.
First, the central control unit 11 responds to a power-on operation (step A1), turns on a power source (not shown) (step A2), and then activates the telephone communication unit 15 to register current position information. At the same time, a standby state of telephone / mail is set while a predetermined standby image is read out and displayed. If any setting operation is performed in this standby state and it is an instruction operation for instructing infrared communication, that is, if it is an instruction operation for directly transmitting profile data to the other party by infrared communication (YES in step A3). Then, the execution of profile transmission processing is started (step A4), and in response to reception of the profile data (YES in step A5), the communication partner side proceeds to profile reception processing (step A6).

FIG. 7 is a flowchart for explaining in detail the profile transmission processing by infrared communication (step A4 in FIG. 6) in the transmission side terminal 1t.
First, the central control unit 11 operates the infrared communication transmitting / receiving unit 19 to execute an authentication process with the receiving side terminal 1r (step B1), and checks whether the authentication is OK (step B2). If there is (NO in step B2), a connection failure message is displayed and output (step B12), then this flow is exited, but if the authentication is OK (YES in step B2), the profile storage unit TA is accessed, It is checked whether data is set in the item “telephone number”, that is, whether its own telephone number is written in the item “telephone number” of the profile data (step B3).

  If there is data of “telephone number” (YES in step B3), the central control unit 11 displays and outputs a confirmation screen for inquiring whether or not to add “decryption key” to this profile data. If any item is selected from the “Yes” and “No” selection items, whether or not an instruction operation to instruct the addition of the “Decryption Key” is performed based on which item is selected (Step B4). In this case, if the user of the transmission side terminal 1t changes the profile data in the future, if the other party may know the changed data, the user selects the “Yes” item and changes the data to the changed data. If you do not want to be known, select the “No” item.

  Here, when the “yes” item is selected (YES in step B4), the “encryption key” is read from the profile storage unit TA, and the “decryption” that can decrypt the data encrypted with this “encryption key” is enabled. Profile data with “key” added is transmitted from the infrared communication transmitter / receiver 19 (step B6). When “No” is selected (NO in step B4), the profile data is transmitted from the infrared communication transmitter / receiver 19. (Step B5). On the other hand, even when data is not written in the “phone number” item of the profile data (NO in step B3), basically the same processing as described above is performed (steps B7 to B9).

  That is, it is checked whether or not an instruction operation for instructing addition of a “decryption key” has been performed (step B7). When the “Yes” item is selected and the addition of “Decryption Key” is instructed, your phone number is written in the “Telephone Number” item of the profile data, and then the “Decryption Key” is added to this profile data. In addition, the data is transmitted from the infrared communication transceiver 19 (step B9). When the item “No” is selected (NO in Step B 7), the telephone number is written in the item “Telephone Number” of the profile data, and then the profile data is transmitted from the infrared communication transmitter / receiver 19. (Step B8). Thereafter, it waits until a reception completion notification is received from the other party (step B10). When the reception completion notification is received, a message indicating transmission completion is displayed and output in response (step B11).

FIG. 8 is a flowchart for explaining in detail the profile reception process (step A6 in FIG. 6) by infrared communication in the receiving terminal 1r.
First, the central control unit 11 activates the infrared communication transmitting / receiving unit 19 to execute an authentication process with the transmission side terminal 1t (step C1), and checks whether the authentication is OK (step C2). If there is (NO in step C2), a message indicating that the connection has failed is displayed and output (step C9), and then the process exits from this flow. C3) A notification indicating that the reception has been completed normally is returned to the transmission source (step C4).

 Then, the central control unit 11 checks whether the “decryption key” is added to the profile data (step C5). If the “decryption key” exists (YES in step C5), the central control unit 11 stores the profile data in the address book storage unit TB. And a “decryption key” is registered in association with it (step C7). If there is no “decryption key” (NO in step C5), profile data is newly registered in the address book storage unit TB (step S7). C6). Then, a message indicating completion of reception is displayed and output (step C8).

When a change operation for instructing change of profile data is performed at the transmission side terminal 1t (YES in step A7 in FIG. 6), the process proceeds to execution of profile change processing (step A8).
FIG. 9 is a flowchart for explaining in detail the profile change process (step A8) executed in the transmission side terminal 1t.
First, the central control unit 11 displays each item constituting the profile data in a list on the edit screen (step D1), and then arbitrarily selects and designates any item from this list as a change target (edit target) item. When this is done (step D2), the data of the designated item is read from the profile storage unit TA and displayed and output as pre-update data (step D3).

  When the change data (for example, mail address) is input from the operation unit 20 in order to change part or all of the data in the designated item (step D4), the central control unit 11 The contents (for example, e-mail address) of the item are updated by rewriting the data to the input data (step D5). Until the end of the update is instructed by the user operation (step D6), the process returns to the above-described step D1, and the process of updating the contents of the profile storage unit TA for each item is repeated.

  When the end of update is instructed (YES in step D6), the central control unit 11 reads the “encryption key” from the profile storage unit TA and all item data (updated data) constituting the profile data. , And all the items of the updated profile data are encrypted with the “encryption key” (step D7). Then, as shown in FIG. "Update identification information" and "telephone number" are added (step D8). Then, after creating an update instruction mail attached with updated data (encrypted data) with “update identification information” and “telephone number” attached (step D9), the mail is sent to the mail server 6 (step D9). Step D10).

  In this case, after receiving the update instruction mail from the transmission side terminal 1t as a broadcast mail, the mail server 6 sends a reception completion notification to the transmission side terminal 1t. Then, the mail server 6 reads the mail address addressed to each person posted on the mailing list and transmits the received mail to each mail address. Here, when receiving the reception completion notification from the mail server 6 (YES in step D11), the transmission side terminal 1t that has transmitted the update instruction mail displays and outputs a message indicating transmission completion (step D12).

 On the other hand, in the flow of FIG. 6, the central control unit 11 checks whether there is an incoming call or mail (step A9), checks whether the power is turned off (step A11), and checks whether there are other operations. (Step A13). When other operations are performed (YES in step A13), for example, phone call processing, mail creation processing, mail transmission processing, etc. are executed as processing corresponding to the operations (step A14). When the power-off operation is performed (YES in step A11), the power-off process is executed (step A12), and the flow in FIG. 6 ends.

If a call incoming or mail reception is detected (YES in step A9), the process proceeds to the incoming / reception process (step A10).
FIG. 10 is a flowchart for explaining in detail the incoming / reception process (step A10 in FIG. 6). First, the central control unit 11 checks whether the incoming call (voice incoming) (step E1) or mail is received (step E3). If the incoming call is an incoming call (YES in step E1), the central control unit 11 proceeds to execution of the call processing ( In step E2), if it is a mail reception (YES in step E3), it is checked whether the mail is the update instruction mail described above (step E4). If it is a mail other than the update instruction mail, the received mail is saved. (Step E5).

  If an update instruction mail is received (YES in step E4), a plaintext “phone number” is acquired from the header portion of the updated data (encrypted data) attached to the mail (step E6). ) Based on this “telephone number”, the address book storage unit TB is searched to check whether the corresponding address book data is registered (step E7). As a result, if the corresponding data is not registered, the process proceeds to the received mail storing process described above (step E5). If the corresponding data is already registered, the corresponding address book data is stored in the address book storage unit TB. It is checked whether the “decryption key” is registered (step E8).

  In other words, based on the presence / absence of registration of the “decryption key”, it is determined whether or not to replace the data before update with the data after update, and whether or not to update the address book data is permitted. Assuming that the update is prohibited, the process proceeds to step E5, and the process proceeds to a process of storing the received mail. If the “decryption key” is registered (YES in step E8), it is determined that the update of the address book data is permitted, and the process proceeds to step E9, where the “decryption key” is transferred from the address book storage unit TB. At the same time as reading, the “decryption key” decrypts the updated data (encrypted data) attached to the received mail.

  Then, the “phone number” added to the header of the updated data (encrypted data) is compared with the “phone number” included in the data decrypted as described above, It is checked whether or not they match (step E10). If it is determined that they do not match, the process moves to step E5 to store the received mail. If both phone numbers match (YES in step E10), the condition is met. In addition, the address book data is updated by replacing the data before update with the decrypted data (step E11). Then, the process proceeds to a process for storing the received mail (step E5).

  As described above, in this embodiment, when the profile data previously transmitted / received between the mobile phone devices 1 is subsequently changed, whether or not to update the data stored and managed in the receiving terminal 1r. By controlling this with the transmitting terminal 1t, it is possible to appropriately update according to the partner, and even if the partner is informed of the profile data before the update, the partner who does not want to notify the profile data after the update The update of the data can be prohibited. In this case, by transmitting a decryption key indicating whether or not the data can be updated together with profile data during infrared communication (direct communication), the receiving terminal 1r associates the data with the decryption key and stores its own address book storage unit. Since it is stored and managed in the TB, it is possible to determine whether or not the data can be updated based on the decryption key.

 When the own profile data is updated in the transmitting terminal 1t, the data attached to the update instruction mail transmitted to the mail server 6 includes “update identification information” in the header portion thereof, as well as its own “phone number”. Therefore, the receiving terminal 1r can search the address book storage unit TB on the other party side based on this “telephone number”, and can accurately specify the update target. The “telephone number” that is part of the item data of the address book data can be searched.

 When the transmitting side terminal 1t updates its own profile data, it encrypts the updated profile data, attaches it to the update instruction mail and transmits it to the mail server 6, and receives the updated profile data. The receiving-side terminal 1r searches the address book storage unit TB to identify the data to be updated, and the data on the condition that the “decryption key” is registered correspondingly and the update is permitted. By updating, it is possible to prohibit updating of data at the terminal when the “decryption key” is not registered.

 That is, when a mail address or the like is changed, the update can be prohibited for a partner who does not want to notify even updated data. In this case, even if the updated data is transmitted to each terminal, the data is encrypted, so there is no security problem. Note that the transmission-side terminal 1t can prohibit updating at each reception-side terminal 1r by changing the “encryption key” stored in the profile storage unit TA. In other words, even by changing the “encryption key” in the middle, even a partner who has permitted updating can be canceled in the middle.

 In this case, when replacing the address book data before update with the updated data decrypted based on the “decryption key” at the receiving terminal 1r, the “phone number” included in the data before update is It was decrypted using the correct “decryption key” by checking the “phone number” added to the encrypted updated data and updating the data on the condition that both match, It is possible to confirm whether the update data is correct, and the safety can be increased.

 When the transmitting side terminal 1t transmits its own profile data to the receiving side terminal 1r, it is possible to transmit the profile data safely and reliably by performing direct one-to-one communication by infrared communication. When the user's own profile data is updated, an update instruction mail with the updated data is created and sent to the plurality of receiving terminals 1r via the mail server 6 so that the updated data is updated. Can be delivered easily and quickly.

In the embodiment described above, the profile storage unit TA is provided in the internal memory. However, the profile storage unit TA may be provided in an external recording medium that can be detachably attached to the apparatus main body. FIG. 11 is a block diagram showing a configuration of the cellular phone device 1 in which an external recording medium having a profile storage unit TA can be attached to and detached from the device main body.
The cellular phone device 1 includes a central control unit 11, a ROM 12, a RAM 13, a wireless communication transmitting / receiving unit 14, an infrared communication transmitting / receiving unit 19 and the like shown in FIG. 2, and a UIM (User Identity Module) card 31 as an external recording medium. Is configured to have a UIM interface section 32 that can be detachably mounted. In this case, the address book storage unit TB is provided in the RAM 13 as in the above-described embodiment, but the profile storage unit TA is provided in the UIM card 31.

  That is, the UIM card 31 has a subscriber information storage unit TC in which a subscriber registration number (identification information), a subscriber telephone number, a call charge, etc. are stored as subscriber information, as shown in FIG. In addition, a profile storage unit TA for storing an “encryption key” is provided corresponding to profile data such as its own “name”, “phone number”, “mail address”, “home address”, and the like. The central control unit 11 basically performs the same operation as the flowcharts shown in FIGS. 6 to 10 according to the program in the ROM 12. In this case, the central control unit 11 is connected via the UIM interface unit 32. The presence or absence of the UIM card 31 is monitored. When the UIM card 31 is attached, the contents of the profile storage unit TA and the subscriber information storage unit TC are read from the UIM card 31 as necessary. ing.

  By providing the profile storage unit TA in the UIM card 31 as described above, if this UIM card 31 is attached to another mobile phone device 1, the other mobile phone device 1 performs the same operation as the above-described embodiment. It becomes possible. The UIM card 31 is not limited to the case where the profile storage unit TA is provided. For example, the same applies to the case where the profile storage unit TA is provided in an external recording medium such as smart media or an IC card. If the mobile phone device 1 is mounted, the other mobile phone device 1 can perform the same operation as in the above-described embodiment.

  In the embodiment described above, whether or not the contents of the record can be updated is determined based on whether or not information (decryption key) indicating whether or not update is registered for each record in the address book storage unit TB. However, the information indicating whether update is possible may be set, for example, for each address book record. If the update availability flag is “1”, the update is permitted and “0” is set. In such a case, updating may be prohibited. In addition, the information indicating whether update is possible is arbitrary.

  In the embodiment described above, when the mail server 6 receives an update instruction mail as a broadcast mail from any mobile phone device 1, the mail server 6 refers to the mailing list and sends the mail (updated data) to a plurality of people. However, the mail is not limited to the mailing list method, and the same mail may be transmitted to a plurality of persons using the mailer software on the mobile phone device 1 side. For example, each person listed in the address book storage unit TB may be listed as a destination and transmitted by broadcast.

In the above-described embodiment, the update instruction mail with the updated data attached is transmitted. However, the update instruction is not attached and the instruction indicating which item should be updated is attached. The content may be transmitted. Further, the update instruction mail is not limited to being sent as a broadcast mail to a plurality of people via the Internet 5, but for example, can be directly sent by a one-to-one method using infrared communication, or 1 by short-range wireless communication (Bluetooth communication). You may make it transmit directly with a to-many system.
The terminal identification information is not limited to a telephone number, and may be any information that can identify a terminal such as a mail address.

In the embodiment described above, the case of controlling the update of the profile data (address book data) is exemplified, but the same applies to the update control in the case of updating data such as schedule data such as action schedules and photographed image data. It is applicable to.
In addition, the communication terminal device is not limited to the mobile phone device, and can be applied to a communication terminal device such as a PDA, an electronic camera, an electronic wristwatch, and a music player with a communication function.

The block diagram which showed the communication network system (data update system) in the mobile telephone apparatus applied as a portable terminal device. FIG. 3 is a block diagram showing basic components of the mobile phone device 1. The figure for demonstrating the profile storage part TA. The figure which showed the data attached to the update instruction | indication mail transmitted to the mail server 6, when own profile data is updated in the transmission side terminal 1t. The figure for demonstrating the address book storage part TB provided in the receiving side terminal 1r. The flowchart which showed the whole operation | movement of the mobile telephone apparatus (transmission side terminal and reception side terminal) 1 started execution with power-on. The flowchart for explaining in detail the profile transmission process (step A4 of FIG. 6) by infrared communication in the transmission side terminal 1t. 7 is a flowchart for explaining in detail a profile reception process (step A6 in FIG. 6) by infrared communication in the receiving terminal 1r. The flowchart for explaining in detail the profile change process (step A8) performed in the transmission side terminal 1t. 7 is a flowchart for explaining in detail the incoming / reception processing (step A10 in FIG. 6). The block diagram which showed the structure of the mobile telephone apparatus 1 which made the external recording medium which has the profile storage part TA removable to an apparatus main body in the modification application example of this Example.

Explanation of symbols

1 Mobile phone device 1t Transmitting terminal
1r Receiving side terminal 4 Mobile wireless communication network 5 Internet 6 Mail server 11 Central control unit 12 ROM
14 wireless communication transmission / reception unit 18 display unit 19 infrared communication transmission / reception unit 20 operation unit TA profile storage unit TB address book storage unit

Claims (13)

In addition to receiving and managing data transmitted from the counterpart terminal, the communication terminal device updates the data in response to an update instruction from the transmission source,
Data storage means for storing and managing the data and the update control information in association with each other when the pre-update data transmitted from the counterpart terminal and update control information indicating whether the data can be updated are received;
When receiving an update instruction transmitted from the counterpart terminal, a determination unit that determines whether or not update is possible by referring to the update control information;
A data updating unit that updates the data before the update when it is determined that the update is permitted by the determination unit;
A communication terminal device comprising: In addition to the pre-update data transmitted from the counterpart terminal, when the source identification information is also received, the data storage means includes and manages the identification information,
When the transmission source identification information is received together with the update instruction transmitted from the counterpart terminal, the determination unit specifies and updates the corresponding update control information by searching the data storage unit based on the identification information. Determine whether it is possible,
2. The communication terminal device according to claim 1, wherein the communication terminal device is configured as described above. The data before update is configured to include the transmission source identification information in a part thereof,
The communication terminal device according to claim 2. The determining means determines whether or not update is possible based on a decryption key stored and managed as the update control information,
When it is determined that the update is permitted by the determination unit when the updated data encrypted from the counterpart terminal is received, the data update unit stores the encrypted updated data. Decrypting based on the decryption key and updating the pre-update data based on the decrypted updated data;
2. The communication terminal device according to claim 1, wherein the communication terminal device is configured as described above. The data updating means is encrypted with the transmission source identification information included in the pre-update data when the pre-update data is replaced with the updated data decrypted based on the decryption key. Check the source identification information added to the updated data, and update the data on the condition that they match.
The communication terminal apparatus according to claim 4, wherein the communication terminal apparatus is configured as described above. The data before update is data transmitted and received by direct communication between communication terminal devices,
The updated data is data transmitted to a plurality of opponents.
The communication terminal device according to claim 1. After the data is stored and saved in the communication terminal on the receiving side by performing transmission / reception of data between the communication terminal devices, if the data is updated in the communication terminal on the transmitting side, A data update system for transmitting data to a receiving communication terminal,
When the communication terminal on the transmission side updates the data before update with first transmission means for transmitting update control information indicating whether update is possible together with the data before update to the communication terminal on the reception side. A second transmission means for transmitting the updated data to the receiving communication terminal,
A data storage means for storing and managing the data and the update control information in association with each other when receiving the pre-update data and the update control information transmitted from the transmission-side communication terminal; A determination means for determining whether or not update is possible by referring to the update control information when the updated data transmitted from the communication terminal on the transmission side is received, and that the update is permitted by the determination means A data update system comprising: a data update unit that updates the data before update when it is determined. In the transmission-side communication terminal, the first transmission means transmits, as update control information, a decryption key for decrypting encrypted data together with the data before update to the reception destination, and the second transmission means includes: Encrypt the updated data with an encryption key and send it to the recipient,
In the communication terminal on the receiving side, the determination unit determines whether or not the update is allowed based on whether or not the decryption key is stored and managed as the update control information, and determines that the update is permitted by the determination unit. When the data update means receives the updated data encrypted from the counterpart terminal, the data update means decrypts the updated data based on the decryption key and decrypts the updated data. Updating the pre-update data based on later data;
8. The data update system according to claim 7, wherein the data update system is configured as described above. When the transmission side communication terminal stores and manages the pre-update data and the decryption key in an external recording medium that is detachably attached to the apparatus main body, the first transmission means Send the pre-update data and decryption key read from the medium to the recipient,
9. The data update system according to claim 8, wherein the data update system is configured as described above. The external recording medium is a recording medium in which at least a subscriber telephone number is recorded as subscriber information.
The data update system according to claim 9. The data before update is data transmitted and received by direct communication between communication terminal devices,
The updated data is data transmitted to a plurality of opponents.
The data update system according to claim 7, wherein: Against the computer,
A function of storing and managing the data and the update control information in association with each other when the pre-update data transmitted from the counterpart terminal and the update control information indicating whether the data can be updated are received;
When receiving an update instruction transmitted from the counterpart terminal, a function for determining whether update is possible by referring to the update control information;
A function to update the data before the update when it is determined that the update is permitted;
A program to realize Against the computer,
A function of transmitting update control information indicating whether or not update is possible together with data before update from a data transmission source to a reception destination;
When the data before update is updated at the transmission source, a function of transmitting the updated data to the reception destination;
A function of storing and managing the data and update control information in association with each other when the pre-update data and update control information transmitted from the transmission source are received at the reception destination;
A function for determining whether or not update is possible by referring to the update control information when the updated data transmitted from the transmission source is received at the reception destination;
A function to update the data before the update when it is determined that the update is permitted;
A program to realize

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