JP2006101216A - Communication system, terminal equipment, and information storage medium to be applied thereto - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a communication system capable of efficiently managing user data. <P>SOLUTION: The communication system is composed of a server and terminal equipment. The terminal equipment is equipped with a first storage control means (201) for storing user data in a first storage unit (1), a first communication means (202) which is connected with the server and transmits the user data stored in the first storage unit to the server, and a deleting means (201) for deleting predetermined user data based on management information on individual user data out of a plurality of user data stored in the first storage unit. The server is equipped with a second communication means (502) which is connected with the terminal equipment and receives the user data transmitted from the terminal equipment, and a second storage control means (501) for storing the user data received by the second communication means in a second storage unit (503). <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a communication system including a terminal device such as a mobile phone and a server capable of communicating with the terminal device. The present invention also relates to a terminal device applied to such a communication system. Furthermore, the present invention relates to an information storage medium applied to such a terminal device.

  Mobile phones that have been remarkably popular in recent years have a memory dial function, and can store a plurality of telephone numbers (see Patent Document 1).

A terminal device such as a GSM standard mobile phone can be connected to an IC chip (SIM card) as an information storage medium and can store various information on the IC chip. For example, this IC chip stores user data such as telephone directory information, electronic mail information, and images. Even if the current mobile phone is changed to a new mobile phone, the user data accumulated so far can be continuously used by continuously using the same IC chip.
JP 2000-332882

  However, an IC chip (SIM card) applied to a terminal device such as a mobile phone is very small and has a limited storage capacity. For this reason, when changing a mobile phone to a new mobile phone, the amount of information that can be transferred to the new mobile phone is limited.

  In addition, it is possible to store user data such as phone book information, e-mail, images, etc. in the built-in memory of the mobile phone main body, which has a larger storage capacity than the IC chip, but the mobile phone is changed to a new mobile phone Could not take over the information without using dedicated equipment.

  An object of the present invention is to solve the above problems, and to provide a communication system and a terminal device capable of efficiently managing user data such as telephone directory information, electronic mail, and images. is there. Moreover, this invention is providing the information storage medium applied to the terminal device which can manage user data efficiently.

  The communication system, terminal device, and information storage medium of the present invention are configured as follows.

  (1) The present invention is a communication system including a server and a terminal device (such as a mobile phone) that can communicate with each other, wherein the terminal device stores user data in a first storage destination. A storage control unit; a first communication unit connected to the server and transmitting user data stored in the first storage destination to the server; and a plurality of user data stored in the first storage destination Deletion means for deleting predetermined user data based on management information of each user data, and the server is connected to the terminal device and receives user data transmitted from the terminal device. A terminal device comprising: communication means; and second storage control means for storing user data received by the second communication means in a second storage destination.

  (2) The present invention is a terminal device capable of communicating with a server, and is connected to the storage control means for storing user data in a predetermined storage destination, and the user data stored in the storage destination is stored in the storage destination. A terminal device comprising: communication means for transmitting to a server; and deletion means for deleting predetermined user data based on management information of each user data among a plurality of user data stored in the storage destination It is.

  (3) The present invention is an information storage medium applied to a terminal device communicable with a server, and a predetermined one selected based on management information of each user data among a plurality of user data stored in the server An information storage medium comprising a storage area for storing the user data.

  ADVANTAGE OF THE INVENTION According to this invention, the communication system and terminal device which can manage user data, such as telephone directory information, an email, and an image efficiently, can be provided. In addition, according to the present invention, an information storage medium applied to a terminal device that can efficiently manage user data can be provided.

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

  FIG. 1 is a diagram showing a schematic configuration of a communication system according to an embodiment of the present invention. As shown in FIG. 1, the communication system includes a SIM card 1 as an information storage medium, a mobile phone terminal 2 as a terminal device, and a server 5.

  The mobile phone terminal 2 includes a main control unit 201, a communication control unit 202, an operation unit 203, a display unit 204, and a contact unit 205. The main control unit 201 controls, for example, the storage of desired data for the SIM card 1 connected via the contact unit 205, or controls the deletion of the desired data stored for the SIM card 1. To do. The communication control unit 202 controls communication with the server 5 and exchanges various information between the mobile phone terminal 2 and the server 5. Further, the communication control unit 202 connects to the Internet via the server 5 and downloads data such as images. The operation unit 203 receives an input operation by a user. For example, in response to an input operation received via the operation unit 203, user data such as telephone directory information and electronic mail is created. The display unit 204 displays user data such as phone book information, electronic mail, and images.

  The SIM card 1 inserted into the mobile phone terminal 2, that is, the SIM card 2 connected to the contact unit 205 can store user data provided from the mobile phone terminal 2. The mobile phone terminal 2 writes predetermined user data to the SIM card 1 inserted into the mobile phone terminal 2 or deletes the data written to the SIM card 1.

  The mobile phone terminal 2 can access the server 5 via the mobile phone base station 3 and the mobile phone network 4 based on the control of the communication control unit 202. Further, the mobile phone terminal 2 can be connected to the Internet 6 outside the mobile phone network and the general telephone network 7 via the server 5 based on the control of the communication control unit 202.

  The server includes a main control unit 501, a communication control unit 502, and an information storage unit 503. The main control unit 501 controls storage of data transmitted from the mobile phone terminal 2, for example. The communication control unit 502 controls communication with the mobile phone terminal 2 and realizes exchange of various information between the mobile phone terminal 2 and the server 5. The information storage unit 503 stores data transmitted from the mobile phone terminal 2.

  FIG. 2 is a diagram illustrating an example of a schematic configuration of the SIM card 1. As shown in FIG. 2, the SIM card 1 includes a control unit (for example, CPU) 101, a data memory 102, a working memory 103, a program memory 104, and a contact unit 105. The control unit 101 controls reading of data from the data memory 102, working memory 103, and program memory 104, and writing of data to these. The data memory 102 is a non-volatile memory whose stored contents can be erased. For example, the data memory 102 is used for storing various data, and is configured by an EEPROM or the like. The working memory 103 is a memory for temporarily storing processing data generated by the control of the control unit 101, and includes, for example, a RAM. The program memory 104 stores a program of the control unit 101 and is configured by, for example, a mask ROM. The contact portion 105 is a terminal for obtaining electrical contact with the contact portion 205 of a card reader / writer built in the mobile phone terminal.

  For example, the control unit 101, the data memory 102, the working memory 103, and the program memory 104 are configured by one IC chip 100. Note that the control unit 101, the data memory 102, the working memory 103, and the program memory 104 may be configured by a plurality of IC chips. Further, the IC chip 100 and the contact part 105 are integrated into an IC module and embedded in the main body of the SIM card 1.

  FIG. 3 is a conceptual diagram showing an example of the data memory 102 of the SIM card 1. As shown in FIG. 3, the data memory 102 can be classified into a system area 1021 fixedly used inside the SIM card 1 and a user area 1022 that can be used for any purpose by the user of the SIM card 1. The user of the SIM card 1 can write user data such as telephone directory information, e-mail data, and images downloaded from the Internet in the user area 1022.

  For example, the main control unit 501 of the mobile phone terminal 2 stores in the SIM card 1 user data, an update history (update date / time) of the user data, and management information indicating an access frequency (access count) for the user data. In addition, the communication control unit 502 of the mobile phone terminal 2 connects to the server 5 and transmits user data and management information stored in the SIM card 1 to the server 5. The communication control unit 202 of the server 5 is connected to the mobile phone terminal 2 and receives user data and management information transmitted from the mobile phone terminal 2. The main control unit 5 of the server 5 stores the user data and management information received by the communication control unit 202 in the storage unit 503. As a result, all user data is backed up on the server 5 side.

  Further, the main control unit 501 of the mobile phone terminal 2 deletes predetermined user data based on the management information of each user data and the free space of the SIM card 1 among the plurality of user data stored in the SIM card 1. Thereby, for example, user data with high use frequency is preferentially stored in the SIM card 1, and other user data with low use frequency is deleted, and the occurrence of insufficient capacity of the SIM card 1 is prevented.

  FIG. 4 is a diagram illustrating an example of a data structure of phone book information corresponding to an example of user data and management information. As shown in FIG. 4, the phone book information includes phone book DF (directory file) 01, phone book structure information EF (elementary file) 02, extended data EF03, grouping information EF04, abbreviated number EF05, phone book control EF06, It includes an additional telephone number EF07, mail address EF08, name EF09, UIDEF10, grouping file EF11, access count EF12, and update history (update date and time) EF13. The phone book DF01 is a folder in which a plurality of EFs (elementary files) can be placed. The telephone book DF01 is divided into a plurality of EFs (phone numbers, names, etc.).

  FIG. 5 is a diagram illustrating an example of the data structure of the EF. As shown in FIG. 5, each EF includes an EF-ID, a record number, a length, and actual data (UID). Each EF is linked by a record number.

  Hereinafter, an example of a telephone directory reference method using the EF that holds the access count and update date / time information as shown in FIGS. 6 and 7 will be described with reference to the flowcharts shown in FIGS.

  FIG. 8 is a flowchart showing an example of a telephone directory reference method. As shown in FIG. 8, for example, retrieval of phone book information by name is designated via the operation unit 203 of the mobile phone terminal 2, and in response to this, the main control unit 5 of the mobile phone terminal 2 calls the phone book by name. Information retrieval is started (ST301). In response to the start of search by the main control unit 5 of the mobile phone terminal 2, the SIM card 1 searches for the name EF09 in which the name record list is stored. If the corresponding name record exists in the SIM card 1 (ST302, YES), the data of the corresponding record linked with the name record of the access count EF12 (management information) in the SIM card 1 and the record number is incremented ( (ST303) Subsequently, the target record of the update date / time EF13 (management information) is updated by updating the data of the target record of the access count (ST304). Thereafter, the corresponding phone book information is output (ST305) and displayed on the display unit 204 of the mobile phone terminal 2, for example.

  When the corresponding name record does not exist in the SIM card 1 (ST302, NO), the server 5 is accessed via the mobile phone terminal 2, the mobile base station 3, and the mobile phone network 4 (ST306). The database prepared for each SIM card 1 in unit 503 is searched (ST307). If the corresponding name record exists in the storage unit 503 of the server 5 (ST307, YES), the corresponding item in the access count EF12 (management information) linked to the name record in the storage unit 503 of the server 5 by the record number The record data is incremented (ST308), and then the target record of the access count EF12 is updated, whereby the target record of the update date and time EF13 (management information) is updated (ST309). Further, the phone book information of the server 5 and the phone book information of the SIM card 1 are synchronized (ST310).

  Here, with reference to FIG. 9, the synchronization processing of the phone book information of the server 5 and the phone book information of the SIM card 1 will be described. After the access count and the update date / time are changed, the phone book database in the storage unit 503 of the server 5 and the phone book in the SIM card 1 compare the update date / time of each other (ST3101), and adopt the new one to save the data. Update. If the update date / time in the SIM card 1 is newer (ST3102, YES), the phonebook information in the server 5 is rewritten with the phonebook information in the SIM card 1 (ST3103). After the data update, the access count EF12 on the database in the storage unit 503 of the server 5 is searched, and an arbitrary number of telephone directory information is selected and transmitted in order from the largest record data value (ST3104). If the number of accesses is the same, the telephone length information with the new update time is preferentially selected and transmitted (ST3105), compared with the number of accesses EF12 inside the SIM card 1, and the record data value is in ascending order. delete. Thereby, the phone book information of the server 5 and the phone book information of the SIM card are synchronized (ST310). As a result, the data stored by the SIM card 1 and the server 5 match in the latest state, and only user data with a high access count is held in the SIM card 1. Thereafter, as shown in FIG. 8, the corresponding phone book information is output (ST311).

  As shown in FIG. 8, when there is no corresponding name record in the SIM card 1 and there is no corresponding name record in the database of the storage unit 503 in the server 5 (ST307, NO), A message with no data registered is output (ST312).

  In the present embodiment, the case where the name EF is searched is illustrated. However, the present invention is not limited to the above-described embodiment, and phone book information such as abbreviated telephone numbers EF305 and UIDEF210, image data, electronic Various modifications can be made by e-mail.

  According to the present invention, the limited data memory in the SIM card 1 can be effectively used for frequently used data. In addition, since user data is stored not only in the SIM card 1 but also on the server 5, even if the SIM card 5 or the mobile phone is damaged, the user data is transferred from the server 5 to the new SIM card. Can be restored and the loss of user data is minimized.

  Furthermore, when the target user data is stored in the SIM card 1, access to the server 5 does not occur, and useless communication is not performed. Access to the server 5 occurs only when there is no target user data in the SIM card 1, and user data is updated during this communication. Therefore, the information in the SIM card 1 is always kept up-to-date, and the server 5 is also updated to the latest state at the access timing from the SIM card 1.

  The outline of this embodiment will be summarized below.

  (1) When the control system of this embodiment gives management information of access frequency and update date / time to a part of data classified by item, and accesses / changes a part of data classified by item The management information of access frequency and update date is updated.

  (2) The control system of the present embodiment holds only data classified by items that are frequently used on the mobile phone terminal side (SIM card), and data classified by other items that are less frequently used on the server side. In order to refer to data classified by other items that are not frequently used, the server is accessed via the mobile phone network.

  (3) The control system of the present embodiment, when connected to the server, the data classified by the items held in the server and the data classified by the items held on the mobile phone terminal side (SIM card) To update the data on both the server and the mobile phone terminal to the latest state.

  Note that the present invention is not limited to the above-described embodiment, and various modifications can be made without departing from the scope of the invention in the implementation stage. In addition, the embodiments may be appropriately combined as much as possible, and in that case, the combined effect can be obtained. Further, the above embodiments include inventions at various stages, and various inventions can be extracted by appropriately combining a plurality of disclosed constituent elements. For example, even if some constituent requirements are deleted from all the constituent requirements shown in the embodiment, the problem described in the column of the problem to be solved by the invention can be solved, and the effect described in the column of the effect of the invention Can be obtained as an invention.

It is a figure which shows schematic structure of the communication system which concerns on one Embodiment of this invention. It is a figure which shows an example of schematic structure of a SIM card. It is a conceptual diagram which shows an example of the data memory of a SIM card. It is a figure which shows an example of the data structure of the telephone directory information applicable to an example of user data and management information. It is a figure which shows an example of the data structure of EF. It is a figure which shows an example of the data structure of EF which hold | maintained the frequency | count of access. It is a figure which shows an example of the data structure of EF which hold | maintained the update date. It is a flowchart which shows an example of a telephone directory reference method. It is a flowchart explaining the synchronous process of the telephone directory information of a server, and the telephone directory information of a SIM card.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... SIM card, 2 ... Mobile phone terminal, 3 ... Mobile phone base station, 4 ... Mobile phone network, 5 ... Server, 6 ... Internet, 7 ... General telephone network, 201 ... Main control part, 202 ... Communication control part, DESCRIPTION OF SYMBOLS 203 ... Operation part, 204 ... Display part, 205 ... Contact part, 501 ... Main control part, 502 ... Communication control part, 503 ... Information storage part

Claims (10)

A communication system composed of a server and a terminal device that can communicate with each other,
The terminal device is
First storage control means for storing user data in a first storage destination;
First communication means for connecting to the server and transmitting user data stored in the first storage destination to the server;
Deleting means for deleting predetermined user data based on management information of each user data among the plurality of user data stored in the first storage destination;
With
The server
A second communication means for connecting to the terminal device and receiving user data transmitted from the terminal device;
Second storage control means for storing user data received by the second communication means in a second storage destination;
A communication system comprising: A communication system composed of a server and a terminal device that can communicate with each other,
The terminal device is
First storage control means for storing user data, an update history of the user data, and management information indicating an access frequency for the user data in a first storage destination;
First communication means for connecting to the server and transmitting user data and management information stored in the first storage destination to the server;
Deleting means for deleting predetermined user data based on management information of each user data among the plurality of user data stored in the first storage destination;
With
The server
A second communication means for connecting to the terminal device and receiving user data and management information transmitted from the terminal device;
Second storage control means for storing user data and management information received by the second communication means in a second storage destination;
A communication system comprising:   The communication system according to claim 1 or 2, further comprising search means for searching for user data designated from the terminal device side from the first and second storage destinations.   The management information is updated based on access to and update of user data stored in the second storage destination on the server side, and stored in the second storage destination based on the updated management information. The user data to be stored in the first storage destination is selected from the plurality of user data, the selected user data is stored in the first storage destination, and the non-selected user from the first storage destination 3. The communication system according to claim 1, further comprising data update processing means for deleting data. A terminal device capable of communicating with a server,
Storage control means for storing user data in a predetermined storage destination;
Communication means for connecting to the server and transmitting user data stored in the storage destination to the server;
A deletion means for deleting predetermined user data based on management information of each user data among the plurality of user data stored in the storage destination;
A terminal device comprising: A terminal device capable of communicating with a server,
Storage control means for storing user data, an update history of the user data, and management information indicating an access frequency for the user data in a predetermined storage destination;
Communication means for connecting to the server and transmitting user data and management information stored in the storage destination to the server;
A deletion means for deleting predetermined user data based on management information of each user data among the plurality of user data stored in the storage destination;
A terminal device comprising:   8. The terminal device according to claim 5 or 7, further comprising a search unit that searches the specified user data from the storage destination and the server.   The management information is updated based on the access to the user data stored on the server side and the update of the user data, and the storage is performed from among the plurality of user data stored on the server side based on the updated management information. 7. A data update processing means for selecting user data to be stored first, storing the selected user data in the storage destination, and deleting unselected user data from the storage destination. Or the terminal device of 7. An information storage medium applied to a terminal device capable of communicating with a server,
An information storage medium comprising a storage area for storing predetermined user data selected based on management information of each user data among a plurality of user data stored in the server. An information storage medium applied to a terminal device capable of communicating with a server,
A storage area for storing predetermined user data selected based on management information indicating an update history of each user data and an access frequency for each user data among a plurality of user data stored in the server is provided. An information storage medium.

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