JP2005228194A - Communication terminal device, communication system and file management method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a communication terminal device, a communication system, and a file management method capable of facilitating the access to a communication device storing data of the communication terminal device while reducing the memory usage. <P>SOLUTION: The communication terminal device 101 transmits a file stored in itself to a remote terminal device 103 through a network system 102 in a predetermined case and deletes the file. The communication terminal device 101 forms a short-cut key used to access a file stored in the remote terminal device 103, and stores the short-cut key. The remote terminal device 103 stores the file transmitted from the communication terminal device 101. The remote terminal device 103 transmits, in case of access by the terminal device 101 by use of the formed short-cut key, the file corresponding to the short-cut key to the terminal device 101. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a communication terminal device, a communication system, and a file management method.

  In recent years, the types of files that can be handled by communication terminal devices have increased, and various contents have been exchanged by communication terminal devices. The received file is usually stored in a communication terminal device.

  However, especially in a portable terminal device, the memory capacity is not so large, and the memory is quickly filled with various files. Therefore, the user has to select and delete the file in the memory, and there is a disadvantage that the work is troublesome. Also, even when there is no file that can be deleted, a new file cannot be saved unless one of the files is deleted.

A conventional communication terminal device for avoiding such inconvenience is described in Patent Document 1. This conventional communication terminal device transmits an image data file imaged by an installed digital camera to a storage server to reduce its own memory usage.
JP 2003-134258 A

  However, in the conventional communication terminal device, there is a problem that the work for accessing the file stored in the storage server is troublesome.

  The present invention has been made in view of the above points, and can reduce the memory usage of a communication terminal device and can easily access a communication device that stores data of the communication terminal device. An object is to provide an apparatus, a communication system, and a file management method.

  The communication terminal device of the present invention includes a storage unit for storing various files, a control unit for determining a transmission target file from the storage unit based on a predetermined file condition, and reading the determined transmission target file from the storage unit. A transmission means for transmitting to a storage device through a communication line; and a shortcut key creation means for creating a shortcut key used for accessing a file stored in the storage device, wherein the control means The shortcut key is stored in the storage unit, and the file storing the shortcut key is deleted from the storage unit.

  According to this configuration, the communication terminal device stores a file that matches a predetermined file condition by transmitting it to the storage device through the communication line, and further uses a shortcut key used to access the file stored in the storage device. Is created and stored in the storage means, and the file in which the shortcut key is created is deleted from the storage means, so that the memory usage can be reduced and the access to the storage device for storing the data can be facilitated. .

  The communication terminal device according to the present invention employs a configuration in which, in the above configuration, the control unit determines a transmission target file from the storage unit based on the fact that the file condition has not been accessed for a certain period of time.

  According to this configuration, since a file that has not been accessed for a certain period of time is automatically transmitted to the storage device and saved, the memory usage of the storage means of the communication terminal device can be reduced, and the user can save the file in the storage device. Can be saved. Also, frequently accessed files can be stored in the storage means of the communication terminal device, and for other files, only shortcut keys can be stored, and the file can be stored in the storage device. The frequency of using can be reduced.

  The communication terminal device according to the present invention employs a configuration in which the control unit determines a transmission target file from the storage unit based on a predetermined file type as the file condition.

  According to this configuration, since a file matching a predetermined file type is automatically transmitted to the storage device and saved, depending on the selection of the file type, the memory usage of the storage means of the communication terminal device can be greatly reduced. In addition, it is possible to save the user from having to send the file to the storage device.

  The communication terminal device according to the present invention employs a configuration in which, in the above configuration, the control unit determines a transmission target file from the storage unit based on a file size as the file condition.

  According to this configuration, since the file is automatically transmitted to the storage device based on a predetermined file size and stored, for example, a file having a certain size or more is automatically transmitted to the storage device and stored. In this case, it is possible to reduce the amount of memory used by the storage means of the communication terminal device and to save the user from having to send a file to the storage device. In addition, when a file having a size smaller than a certain size is automatically transmitted to a storage device and saved, a large file is stored in the communication terminal device. Calling time can be shortened.

  The communication terminal device according to the present invention employs a configuration in which, in the above configuration, the control unit controls transmission of the transmission target file of the transmission unit based on a file storage capacity of the storage unit.

  According to this configuration, the control unit controls the transmission of the transmission target file based on the storage capacity of the file in the storage unit. For example, when the storage unit has a sufficient storage capacity, the control unit transmits the transmission target file. As a result, the frequency of using the communication line can be reduced.

  In the communication terminal device according to the present invention, in the configuration described above, the control unit accesses the storage device using the shortcut key and uses the corresponding file, and then stores the file in the storage unit and stores the shortcut key. Or selecting means for selecting whether to delete the file by saving the shortcut key in the storage means.

  According to this configuration, the control unit accesses the storage device using the shortcut key and uses the corresponding file, and then saves the file in the storage unit and deletes the shortcut key, or the shortcut key Is stored in the storage means, and selection means for selecting whether to delete the file is provided, so that it is possible to realize file management with a high degree of freedom according to predetermined file conditions.

  The charger according to the present invention is a charger for charging the communication terminal device, wherein the communication terminal device is charged with a receiving unit that receives a transmission target file from the transmission unit, and the received transmission target file. A transmission unit configured to transmit to the storage device through the communication line.

  According to this configuration, the charger receives the transmission target file from the transmission unit of the communication terminal device and charges the transmission target file to the storage device via the communication line while the communication terminal device is being charged. It is possible to send a file during idle time when is not used.

  A remote terminal device according to the present invention communicates with the communication terminal device and includes the storage device, and stores identification information of the communication terminal device that permits access to the storage device. Based on the identification information transmitted from the communication terminal device and the identification information stored in the identification information storage device, the access management means for managing access to the storage device of the communication terminal device The structure which comprises these is taken.

  According to this configuration, the access management means permits access to the remote terminal device only for the communication terminal device that is permitted to access the storage device. Security in the terminal device can be ensured.

  An access management device according to the present invention is an access management device that manages access to a remote terminal device including the storage device by the communication terminal device, and the identification information of the communication terminal device that permits access to the storage device For managing access to the storage device of the communication terminal device based on the identification information storage means for storing the identification information, the identification information transmitted from the communication terminal device, and the identification information stored in the identification information storage means And a management means.

  According to this configuration, the access management unit of the access management device permits access to the remote terminal device only for the communication terminal device that is permitted to access the storage device included in the remote terminal device. Unauthorized use of the remote terminal device can be prevented and security in the remote terminal device can be ensured.

  The communication system of the present invention employs a configuration including the communication terminal device and the remote terminal device.

  According to this configuration, the communication terminal device stores a file matching the predetermined file condition by transmitting it to the storage device of the remote terminal device through the communication line, and further accesses the file stored in the storage device. Since the shortcut key used in the above is created and stored in the storage means, the memory usage of the communication terminal device can be reduced, and access to the remote terminal device for storing data can be facilitated.

  The file management method of the present invention includes a step of determining a transmission target file based on a predetermined file condition, a step of reading the determined transmission target file and transmitting it to a storage device through a communication line, and a storage device storing the file. Creating a shortcut key used to access the file, storing the shortcut key, and deleting the file storing the shortcut key.

  According to this method, a file that matches a predetermined file condition is stored by being transmitted to the storage device through a communication line, and further, a shortcut key used for accessing the file stored in the storage device in the shortcut key storage step Is created and stored, and the file in which the shortcut key is created is deleted from the storage means, so that the memory usage can be reduced and the access to the storage device for storing the data can be facilitated.

  According to the present invention, it is possible to provide a communication terminal device, a communication system, and a file management method that can reduce memory usage and facilitate access to a communication device that stores data.

  The gist of the present invention is that the communication terminal device transmits to and saves a file in the own device, and creates and stores a shortcut for accessing the file.

  Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings.

  First, the configuration of the communication system 100 according to the present embodiment will be described with reference to FIG.

  FIG. 1 is a diagram showing an overall configuration of a communication system according to the present embodiment.

  The communication system 100 includes a communication terminal device 101, a network system 102, and a remote terminal device 103.

  The communication terminal device 101 transmits a file stored in the own device to the remote terminal device 103 via the network system 102 in a predetermined case. Then, the communication terminal apparatus 101 creates a shortcut key used for accessing a file stored in the remote terminal apparatus 103, and stores the shortcut key.

  Note that variations of the “predetermined case” in which the file stored in the communication terminal apparatus 101 is transmitted to the remote terminal apparatus 103 will be described later.

  The remote terminal device 103 stores a file transmitted from the communication terminal device 101. Further, when the remote terminal device 103 is accessed using the shortcut key created by the communication terminal device 101, the remote terminal device 103 transmits a file corresponding to the shortcut key to the communication terminal device 101.

  Next, the configuration of the communication terminal apparatus 101 will be described with reference to FIG.

  FIG. 2 is a block diagram showing the configuration of the communication terminal apparatus 101.

  The communication terminal device 101 includes an operation unit 110, a display unit 111, a timer unit 112, a shortcut key creation unit 113, a storage unit 114, a control unit 115, a transmission unit 116, and a reception unit 117. To do.

  The operation unit 110 includes a numeric keypad and the like, and is used by the user to operate the communication terminal device 101. The operation unit 110 provides a signal corresponding to the operation performed by the user to the control unit 115.

  The display unit 111 is configured by a liquid crystal display panel or the like, and displays various information based on a signal received from the control unit 115 and presents it to the user.

  The timer unit 112 gives the current time to the control unit 115.

  In response to a command signal for creating a shortcut key from the control unit 115, the shortcut key creation unit 113 creates a shortcut key and gives it to the control unit 115.

  The storage unit 114 stores shortcut keys and files received from the control unit 115. In addition, the storage unit 114 stores a last access time indicating the last accessed time for each file.

  The control unit 115 transmits the file stored in the storage unit 114 to the remote terminal device 103 via the transmission unit 116 in a “predetermined case”. At that time, the control unit 115 gives a shortcut key creation command signal to the shortcut key creation unit 113. And the control part 115 performs the process according to the variation of "predetermined case". Details of this processing will be described in the description of variations described later.

  The transmission unit 116 transmits various signals received from the control unit 115 to the remote terminal device 103 through the network system 102.

  The receiving unit 117 gives various signals received from the remote terminal device 103 through the network system 102 to the control unit 115.

  Next, a variation of “predetermined case” in which the file stored in the communication terminal device 101 is transmitted to the remote terminal device 103 will be described with reference to FIGS. 1 to 5.

  First, the case where the transmission unit 116 transmits a file that has not been accessed for a predetermined time or longer will be described with reference to FIG.

  FIG. 3 is a flowchart showing the operation of the communication terminal apparatus 101 when transmitting a file that has not been accessed for a predetermined time.

  Control unit 115 obtains the last access time of the file stored in storage unit 114 (ST301). Control unit 115 obtains the current time from timer unit 112, calculates a non-access time that is the difference from the last access time obtained from storage unit 114, and compares it with a predetermined threshold value (ST302).

  As a result of the comparison, when the non-access time exceeds the threshold (ST302: YES), the control unit 115 copies the file that has not been accessed for a certain period of time, and sends the network system 102 from the transmission unit 116. To the remote terminal apparatus 103 and stored in the remote terminal apparatus 103 (ST303). Then, the control unit 115 gives a shortcut key creation command signal for accessing the transmitted file to the shortcut key creation unit 113, and the shoot cut key creation unit 113 responds to the command signal, A shortcut key (URL including the address of the remote terminal device 103 and identification information (file name) of the file) is created (ST304). Control unit 115 transmits the shortcut key from transmission unit 116 to remote terminal apparatus 103 via network system 102, and deletes the original file remaining in storage unit 114 (ST305).

  Here, the control unit 132 of the remote terminal device 103 to be described later is transmitted based on the directory information included in the shortcut key transmitted from the transmission unit 116 via the network system 102 by the control unit 115 of the communication terminal device 101. The file is stored in the storage unit 131. In this way, the management status of files in the remote terminal device 103 can be managed also on the communication terminal device 100 side, and the user is stored in the remote terminal device 103 using a shortcut key, and Direct access to the file corresponding to the shortcut key.

  In order to manage the management status of the file in the remote terminal device 103 on the communication terminal device 100 side, the remote terminal device 103 related to the file transmitted from the transmission unit 116 via the network system 102 by the control unit 115 of the communication terminal device 101. The control unit 132 of the remote terminal device 103 may transmit the directory information to the communication terminal device 101, and the shortcut key creation unit 113 may create a shortcut key based on the directory information.

  On the other hand, if the non-access time does not exceed the threshold value as a result of the comparison (ST302: NO), control unit 115 does not perform any processing on the file.

  The above processing is performed for each file stored in the storage unit 114.

  As described above, in this variation, the control unit 115 automatically transmits and saves a file that has not been accessed for a certain period of time to the remote terminal device 103, so that the memory usage of the storage unit 114 of the communication terminal device 101 is reduced. This can reduce the time and effort of the user to send the file to the remote terminal device 103. In this variation, frequently accessed files are stored in the communication terminal device 101. For other files, only the shortcut key is stored in the communication terminal device 101, and the file is stored in the remote terminal device 103. Therefore, it is possible to reduce the frequency of downloading the file and the frequency of using the communication line. Further, by accessing the file stored in the remote terminal device 103 using the shortcut key, the file can be accessed with the same work as when the file is stored in the communication terminal device 101.

  Next, a case where the transmission unit 116 transmits a predetermined type of file will be described with reference to FIG.

  FIG. 4 is a flowchart showing the operation of communication terminal apparatus 101 when transmitting section 116 transmits a predetermined type of file.

  Control unit 115 obtains the type of file stored in storage unit 114 (ST401). The control unit 115 compares the file type acquired from the storage unit 114 with a predetermined file type to be transmitted to the remote terminal device 103 (ST402).

  As a result of the comparison, when the types of both files match (ST402: YES), the control unit 115 copies the file and transmits it from the transmission unit 116 to the remote terminal device 103 via the network system 102. It is stored in the remote terminal device 103 (ST403). Then, the control unit 115 gives a shortcut key creation command signal for accessing the transmitted file to the shortcut key creation unit 113, and the shoot cut key creation unit 113 responds to the command signal, A shortcut key is created (ST404). Control unit 115 transmits the shortcut key from transmission unit 116 to remote terminal apparatus 103 via network system 102, and deletes the original file remaining in storage unit 114 (ST405).

  On the other hand, if the types of the files are different as a result of the comparison (ST402: NO), control unit 115 does not perform any processing on the files.

  The above processing is performed for each file stored in the storage unit 114.

  As described above, in this variation, since the control unit 115 automatically transmits a predetermined type of file to the remote terminal device 103 and stores it, for example, a file type that tends to increase the file size of an image or the like. Can be reduced, the memory usage of the storage unit 114 of the communication terminal apparatus 101 can be reduced, and the user's trouble of transmitting a file to the remote terminal apparatus 103 can be omitted. Further, by accessing the file stored in the remote terminal device 103 using the shortcut key, the file can be accessed with the same work as when the file is stored in the communication terminal device 101.

  Next, the case where the transmission unit 116 transmits a file according to the file size will be described with reference to FIG.

  FIG. 5 is a flowchart showing the operation of the communication terminal apparatus 101 when the transmission unit 116 transmits a file according to the file size.

  Control unit 115 obtains the size of the file stored in storage unit 114 (ST501). Control unit 115 compares the file size acquired from storage unit 114 with a predetermined threshold value for the size of the file to be transmitted to remote terminal device 103 (ST502).

  As a result of the comparison, if the size of the file acquired from the storage unit 114 exceeds the threshold value (ST502: YES), the control unit 115 copies the file and sends it from the transmission unit 116 via the network system 102. Is transmitted to the remote terminal apparatus 103 and stored in the remote terminal apparatus 103 (ST503). Then, the control unit 115 gives a shortcut key creation command signal for accessing the transmitted file to the shortcut key creation unit 113, and the shoot cut key creation unit 113 responds to the command signal, A shortcut key is created (ST504). Control unit 115 transmits the shortcut key from transmission unit 116 to remote terminal apparatus 103 via network system 102, and deletes the original file remaining in storage unit 114 (ST505).

  If the size of the file acquired from the storage unit 114 is equal to or smaller than the threshold value as a result of the comparison (ST502: NO), the control unit 115 performs no processing on the file.

  The above processing is performed for each file stored in the storage unit 114.

  As described above, in this variation, a file stored in the storage unit 114 having a certain size or larger is automatically transmitted to the remote terminal device 103 and stored, so that the storage unit 114 of the communication terminal device 101 stores the file. Memory usage can be reduced, and the user's trouble of sending a file to the remote terminal device 103 can be omitted. Further, by accessing the file stored in the remote terminal device 103 using the shortcut key, the file can be accessed with the same work as when the file is stored in the communication terminal device 101.

  In the above description of this variation, when the size of the file acquired from the storage unit 114 exceeds the threshold value, the control unit 115 copies the file and sends it to the remote terminal device 103 via the transmission unit 116. However, if the file size is smaller than the threshold value, the control unit 115 may copy the file and transmit the file to the remote terminal device 103 via the transmission unit 116. In such a setting, since a large file is stored in the communication terminal apparatus 101, the time for calling these large files can be shortened.

  As described above, in the three cases described with reference to FIGS. 3 to 5, the step in which the control unit 115 acquires the data amount accumulated in the storage unit 114 before the flow illustrated in FIGS. 3 to 5. And a step of comparing the amount of data stored in the storage unit 114 with a predetermined threshold value can be included. As a result of comparison, if the amount of data stored in the storage unit 114 exceeds the threshold value, the process proceeds to the processing shown in FIGS. If is less than or equal to the threshold value, the control unit 115 can be configured not to perform any processing. By adding such a step, it is not necessary to send a file to the remote terminal device 103 when there is room in the memory of the storage unit 114 of the communication terminal device 101, so that useless communication lines can be reduced. it can.

  When the communication terminal device 101 can receive a television broadcast, the received television broadcast data can be transmitted to the remote terminal device 103 and stored. At this time, the communication terminal device 101 creates and stores a shortcut key for accessing the television broadcast data stored in the remote terminal device 103, so that the user can access the data at any time. it can.

  Further, the file transmission to the remote terminal device 103 performed in the above-mentioned “predetermined case” consumes a large amount of battery, so that it is possible to perform the transmission only when the communication terminal device 101 is being charged. .

  Next, variations when accessing using the created shortcut key will be described with reference to FIGS.

  First, when the user downloads and browses a file stored in the remote terminal device 103 using a shortcut key, the communication terminal device 101 stores the file and deletes the shortcut key. This will be described with reference to FIG.

  FIG. 6 is a flowchart showing the operation of communication terminal apparatus 101 when a file is downloaded and browsed, the file is stored, and the shortcut key is deleted.

  First, the user selects a shortcut key of a file to be accessed from shortcut keys of each file displayed on display unit 111 using operation unit 110 (ST601). The control unit 115 receives the selected shortcut key, transmits the selected shortcut key from the transmission unit 116 to the remote terminal device 103 via the network system 102, and transmits a file transmitted from the remote terminal device 103 in response to the shortcut key to the control unit 115. Is received via the receiving unit 117. Then, control unit 115 stores the content of the received file in storage unit 114 and displays it on display unit 111 to allow the user to browse (ST602).

  When the user finishes browsing the file, the user performs an operation to end browsing using the operation unit 110 (ST603). In response to this user operation, control unit 115 deletes the shortcut key stored in storage unit 114 corresponding to the browsed file (ST604).

  In this case, the file downloaded and stored in the storage unit 114 is treated as a target to be transmitted to the remote terminal device 103 in each of the above-described variations of FIGS.

  Next, after the user downloads and browses a file stored in the remote terminal device 103 using a shortcut key, the communication terminal device 101 stores the shortcut key corresponding to the file while storing the file. The case of erasing will be described with reference to FIG.

  FIG. 7 is a flowchart showing the operation of communication terminal apparatus 101 when a file is deleted after the file is downloaded and browsed, while the shortcut key is stored. Steps similar to those in FIG. 6 are denoted by the same step numbers, and the description thereof is omitted.

  When browsing of the file downloaded from the remote terminal device 103 by the user is completed and the user performs a termination operation using the operation unit 110, the control unit 115 receives the operation and the browsing stored in the storage unit 114 is received. The deleted file is deleted (ST701).

  By doing in this way, the memory usage of the memory | storage part 114 of the communication terminal device 101 can be reduced.

  Next, after the user downloads and browses the file stored in the remote terminal device 103 using the shortcut key, the communication terminal device 101 stores the file and deletes the shortcut key, or A case will be described with reference to FIG. 8 where the communication terminal device 101 allows the user to select either one of the shortcut keys corresponding to the file while deleting the shortcut key.

  FIG. 8 is a flowchart showing the operation of the communication terminal apparatus 101 when the user selects the next process after downloading and browsing a file. Steps similar to those in FIG. 6 are denoted by the same step numbers, and the description thereof is omitted.

  When browsing of the file downloaded from the remote terminal device 103 by the user is completed, and the user performs an end operation using the operation unit 110, the control unit 115 stores the file and receives a shortcut key. The display unit 111 displays a display that prompts the user to select either of deleting the file or deleting the file while the communication terminal apparatus 101 stores the shortcut key corresponding to the file. . Then, control section 115 determines whether or not communication terminal apparatus 101 has selected to delete the file by using operation section 110 while the shortcut key corresponding to the file is stored (ST801).

  When the user selects to delete the file while storing the shortcut key corresponding to the file (ST801: YES), control unit 115 stores the browsed file stored in storage unit 114. Delete (ST802).

  When the user selects to store the file and delete the shortcut key (ST801: NO), the shortcut key stored in storage unit 114 corresponding to the browsed file is deleted (ST803).

  Thus, the user's convenience can be improved by making the user select whether to delete the browsed file or to delete the shortcut key.

  Next, the remote terminal device 103 will be described.

  FIG. 9 is a block diagram showing the configuration of the remote terminal device 103.

  The remote terminal device 103 includes a storage unit 131, a control unit 132, a transmission unit 133, and a reception unit 134.

  The storage unit 131 stores identification information (such as a telephone number) of the communication terminal device 101 that is permitted to access the remote terminal device 103. In addition, the storage unit 131 stores the file and the shortcut key transmitted from the communication terminal device 101 in a folder associated with the identification information of the communication terminal device 101.

  The control unit 132 controls the entire remote terminal device 103, and also includes the identification information of the communication terminal device 101 that has accessed and the identification information of the communication terminal device 101 that is stored in the storage unit 131 and is permitted to be accessed. If they match, access of the communication terminal apparatus 101 is permitted.

  The transmission unit 133 transmits various signals received from the control unit 132 to the communication terminal apparatus 101 through the network system 102.

  The receiving unit 134 gives various signals received from the communication terminal device 101 through the network system 102 to the control unit 132.

  Next, the security operation of the remote terminal device 103 will be described. Here, in particular, the case where the communication terminal apparatus 101 to be accessed is a mobile phone will be described with reference to FIG.

  The control unit 132 is a signal for identifying the communication terminal device 101 included in the signal transmitted by the communication terminal device 101 that has accessed (in this case, the mobile phone number of the mobile phone is used. As long as they can be identified in correspondence with each other) via the receiving unit 134 (ST1001). Control unit 132 compares the acquired mobile phone number with the mobile phone number of the mobile phone that permits access stored in advance in storage unit 131 (ST1002).

  As a result of the comparison, when a number matching the acquired mobile phone number is stored in the storage unit 131 (ST1002: YES), the control unit 132 is stored in the storage unit 131 in association with the mobile phone number. The open folder is released (ST1003), and access is permitted.

  Then, control unit 132 receives a transmission request command including a file shortcut key from communication terminal apparatus 101 (ST1004), and executes transmission processing of the corresponding file as command processing corresponding to the command (ST1005).

  As a result of the comparison, if the number matching the acquired mobile phone number is not stored in the storage unit 131 (ST1002: NO), the control unit 132 does not accept the access of the communication terminal device 101 and ends the process. To do.

  Thus, since the remote terminal device 103 permits access only to the communication terminal device 101 that is permitted to access in advance, it is possible to ensure the security for the file stored in the remote terminal device 103.

  Here, only the folder stored in the storage unit 131 is opened in association with the accessed mobile phone number. However, when the remote terminal device 103 is a user's personal terminal device, when the number matching the acquired mobile phone number is stored in the storage unit 131, the control unit 132 may A transmission request command including a file shortcut key may be received, and the transmission processing of the corresponding file may be executed as command processing corresponding to the command. Even in this case, it is possible to ensure security for the file stored in the remote terminal device 103.

  In the above description, the control unit 132 has an access permission function. However, the present invention is not limited to this, and another independent device (hereinafter referred to as an access permission device) has an access permission function for the remote terminal device 103. It may be allowed. In this case, first, the communication terminal apparatus 101 accesses the access permission apparatus. The access permission device permits access to the remote terminal device 103 for the first time when the accessing communication terminal device 101 is permitted to access the remote terminal device 103.

  Next, the configuration of the charger 104 when the communication terminal device 101 transmits information from the charger 104 to the remote terminal device 103 via the network system 102 will be described with reference to FIG.

  FIG. 11 is a block diagram illustrating a configuration of the charger 104.

  The charger 104 includes a reception unit 141, a control unit 142, a transmission unit 143, and a power supply unit 144.

  The reception unit 141 receives various types of information from the transmission unit 116 of the communication terminal apparatus 101 and provides the information to the control unit 142.

  The control unit 142 transmits various types of information received from the reception unit 141 from the transmission unit 143 to the remote terminal device 103 via the network system 102. In addition, the control unit 142 receives current from the power source and supplies the current to the power supply unit 144.

  The power supply unit 144 supplies the current received from the control unit 142 to a battery (not shown) of the communication terminal device 101 for charging.

  In this manner, the communication terminal device 101 transmits information to the remote terminal device 103 via the charger 104, so that the communication terminal device 101 is being charged, that is, in a stable state where current is secured. Communication is possible. Also, when the transmission unit 143 transmits information to the remote terminal device 103 via the network system 102 by wire, the line usage fee can be reduced compared to when the communication terminal device 101 transmits a file wirelessly. it can.

  INDUSTRIAL APPLICABILITY The present invention is useful as a communication terminal device, a communication system, and a file management method that can reduce memory usage and facilitate access to a communication device that stores data.

The figure which shows the whole structure of the communication system which concerns on this Embodiment. The block diagram which showed the structure of the communication terminal device of FIG. Flow diagram showing the operation of the communication terminal device when transmitting a file that has not been accessed for a predetermined time or more Flow chart showing the operation of the communication terminal apparatus when transmitting a predetermined type of file Flow diagram showing the operation of the communication terminal device when sending a file according to the file size Flow chart showing operation of communication terminal device when deleting shortcut key of downloaded file Flow chart showing operation of communication terminal device when erasing downloaded file Flow chart showing the operation of the communication terminal device when selecting the next processing of the downloaded file The block diagram which showed the structure of the remote terminal device of FIG. Flow chart for explaining the security operation of the remote terminal device Block diagram showing the configuration of the charger

Explanation of symbols

DESCRIPTION OF SYMBOLS 100 Communication system 101 Communication terminal device 102 Network system 103 Remote terminal device 110 Operation part 111 Display part 112 Timer part 113 Shortcut key creation part 114,131 Storage part 115,132 Control part 116,133 Transmission part 117,134 Reception part

Claims (11)

Storage means for storing various files;
Control means for determining a transmission target file from the storage means based on a predetermined file condition;
A transmission unit that reads the determined transmission target file from the storage unit and transmits the file to the storage device through a communication line;
Shortcut key creating means for creating a shortcut key used for accessing a file stored in the storage device;
And the control means stores the created shortcut key in the storage means, and deletes the file storing the shortcut key from the storage means.   2. The communication terminal apparatus according to claim 1, wherein the control unit determines a transmission target file from the storage unit based on the fact that the file condition is not accessed for a certain period of time.   The communication terminal apparatus according to claim 1, wherein the control unit determines a transmission target file from the storage unit based on a predetermined file type as the file condition.   The communication terminal apparatus according to claim 1, wherein the control unit determines a transmission target file from the storage unit based on a file size as the file condition.   5. The communication terminal apparatus according to claim 1, wherein the control unit controls transmission of the transmission target file of the transmission unit based on a storage capacity of the file of the storage unit. .   The control means accesses the storage device using the shortcut key and uses the corresponding file, and then saves the file in the storage means and deletes the shortcut key, or stores the shortcut key in the storage 5. The communication terminal apparatus according to claim 1, further comprising selection means for presenting and selecting whether to save the file and delete the file. A charger for charging the communication terminal device according to any one of claims 1 to 6,
While charging the communication terminal device,
Receiving means for receiving a transmission target file from the transmitting means;
Transmitting means for transmitting the received transmission target file to the storage device through the communication line;
A battery charger comprising: A remote terminal device that performs communication with the communication terminal device according to any one of claims 1 to 6 and includes the storage device,
Identification information storage means for storing identification information of the communication terminal device permitting access to the storage device;
An access management means for managing access to the storage device of the communication terminal apparatus based on the identification information transmitted from the communication terminal apparatus and the identification information stored in the identification information storage means;
A remote terminal device comprising: An access management device for managing access to the remote terminal device including the storage device by the communication terminal device according to any one of claims 1 to 6,
Identification information storage means for storing identification information of the communication terminal device permitting access to the storage device;
An access management means for managing access to the storage device of the communication terminal apparatus based on the identification information transmitted from the communication terminal apparatus and the identification information stored in the identification information storage means;
An access management apparatus comprising: A communication terminal device according to any one of claims 1 to 6;
A remote terminal device according to claim 8;
A communication system comprising: Determining a transmission target file based on a predetermined file condition;
Reading the determined transmission target file and transmitting it to the storage device through a communication line;
Creating a shortcut key used to access a file stored in the storage device, storing the shortcut key, and deleting the file storing the shortcut key;
A file management method comprising:

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