JP2009230513A - Memory vacant-capacity enlarging device, method, program and portable terminal device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To avoid the capacity shortage of a memory when various applications are stored. <P>SOLUTION: A memory vacant-capacity enlarging device in which the applications and user data are stored comprises: a memory vacant-capacity checking section 160A which checks whether the vacant capacity of the memory is smaller than a prescribed value in writing operation; an application/user data-compression candidate/searching section 160B which retrieves the stored application and user data as a compressional candidate in order of a lower frequency of the start-up of their browse when the vacant capacity is determined to be smaller than the prescribed value; an application/user data compressing section 160C which compresses the retrieved application/user data; and an application/user data compressing and storing section 110A which stores the compressed application and user data instead of the application and user data which are retrieved as the compressional candidate until the vacant capacity is determined to be larger than a prescribed value and stored in the memory. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a flash memory of a mobile terminal device. In particular, the present invention relates to a memory free capacity expansion device, method, program, and portable terminal device for lack of capacity due to high functionality.

In recent years, the data stored in the flash memory of mobile terminal devices that realize various high-performance applications has been increasing along with the advancement of functionality, and the memory capacity installed in mobile terminal devices has been increasing. is there. Therefore, it has been a problem that the cost of the mobile terminal device is affected.
Furthermore, when downloading various applications from the server to the mobile terminal device and saving them to the flash memory, if the flash memory capacity is insufficient, the existing application is deleted by the user's own operation to secure the flash memory capacity. There was a problem in operability.

There are the following patent documents as techniques relating to a memory for storing an application in this way.
In order to solve the shortage of memory capacity when launching multiple application software and realize a comfortable operating environment, set resident or temporary attribute information in multiple application software installed in this device. The attribute information is managed in a table in association with the currently operating application software. When the application is started, the attribute information set in the currently operating application software is determined by referring to the table. The application software in which the resident attribute information is set is left in the execution memory, and the temporary attribute information is stored. The set application software is forcibly terminated and released from the execution memory, so that there are cases where the memory capacity becomes insufficient due to the use of a large number of application software, and the execution operation can be slowed or the software runs away (For example, refer to Patent Document 1).

  However, in Patent Document 1, application software with resident attribute information set is left in the execution memory as it is, and application software with temporary type attribute information is forcibly terminated and released from the execution memory. However, since the application is left as it is, there is a problem that the capacity is easily insufficient when the number of applications to be saved increases.

  Also, in order to selectively and automatically update only software with a high level of proficiency, update file information including the number of software activations is sent to the database center, and the number of activations is incremented each time the software is activated. Use the number of startups related to the number of times the software is used as an index of proficiency, check against the update conditions set to the same (common) for all application software, and check the latest software that satisfies the update conditions. All are sent, and one of the update conditions is when the number of activations more than a predetermined number is satisfied. When the update condition is satisfied, it is determined that there is software to be downloaded, and then the latest version of the software is written. At the same time, the update version and update date and time are saved in the update file, and the software that satisfies the update conditions is saved. Selectively only, yet it is automatically updated, this user is also intended to be released from the sift work troublesome software update (e.g., see Patent Document 2).

However, in Patent Document 2, only software with a high level of proficiency is selectively and automatically updated, but this solves the problem that the capacity of the flash memory is insufficient when various applications are downloaded and stored in the flash memory. is not.
It is another object of the present invention to provide an image data storage device, an image data storage method, an imaging method, and a storage medium that can change the image quality level after shooting or can automatically secure a storage area for storing a newly shot image. For the purpose, when the “shutter” key is operated, the CPU checks whether or not there is a memory capacity that can be stored in the flash memory. The image quality mode flag is set to “L” indicating “economy” and image data with a small head address is read from the data storage unit, and this image data is decompressed by the compression / decompression circuit, and decompressed image data The data is compressed at a high compression rate to reduce the amount of data, and this recompressed image data is stored in the data storage section of the flash memory for recording. Also shall ensure a memory area (e.g., see Patent Document 3).

  However, in Patent Document 3, when there is no free space in the flash memory, the image data is compressed at a high compression rate to reduce the data amount and secure a storable memory area. Is also compressed, and there is a problem that the browsing activation process becomes complicated. Furthermore, Patent Document 3 does not solve the problem of insufficient memory capacity for applications.

JP 2003-015892 A JP 2004-355563 A JP 10-056612 A

  Accordingly, in view of the above problems, the present invention provides a memory free space expansion device, method, program, and portable terminal device that can avoid a shortage of flash memory capacity when various applications are stored in the flash memory. The purpose is to do.

  In order to solve the above problems, the present invention provides an apparatus for expanding the free space of a memory for storing applications and user data, and checking whether the free space of the memory is less than a specified value when writing the application and user data. An application that saves in the memory in order from the lowest activation count of the application and the user data stored in the memory when the free space is confirmed to be less than a specified value in the confirmation unit and the memory free space confirmation unit; An application / user data compression candidate search unit that searches user data as a compression candidate, an application / user data compression unit that compresses application / user data searched by the application / user data compression candidate search unit, and the memory The application / user data compression candidate search unit searches for the application / user data in place of the application / user data and the application / user data until the free space is confirmed to be equal to or greater than a predetermined value. There is provided an apparatus for expanding a free space of a memory, comprising: an application compressed by a user data compression unit; and an application / user data compression storage unit for storing user data.

Further, an application / user data decompression unit is provided, and the application / user data decompression unit has an activation request when there is an activation request for browsing the application and user data stored in the application / user data compression storage unit. And decompress user data compression to allow activation of viewing of applications and user data.
Further, the application / user data compression candidate search unit searches for applications and user data as compression candidates in order of the oldest start time of browsing the application and user data stored in the memory.

In addition, the application / user data compression candidate search unit sets the application and user data stored in the memory as compression candidates in the order of the lowest number of activations of browsing of the application and user data and the lowest addition value of the oldest activation time of the previous activation time. Search for application and user data.
Further, an addition value is given by weighting the order in which the number of activations is old and the order in which the previous activation times are old.

  Furthermore, the present invention provides a memory free space expansion device for storing application and user data, a memory free space confirmation unit for confirming whether or not the free space of the memory is less than a prescribed value when writing application and user data, and the memory When the free space confirmation unit confirms that the free space is less than the specified value, the applications and user data stored in the memory in the order from the lowest number of times of browsing of the application and user data stored in the memory are set as transmission candidates. The application / user data transmission candidate search unit for searching, and the application / user data transmitted by the application / user data transmission candidate search unit to the server on the Internet are compressed. Applications searched by the application / user data transmission candidate search unit and stored in the memory until the free space is confirmed to be equal to or greater than a predetermined value by the application / user data compression unit and the memory free space confirmation unit And an application / user data storage unit that stores the application and user data transmitted to the server by the application / user data transmission / reception unit instead of the user data. .

Further, the application / user data transmission / reception unit, when there is an activation request for browsing the application and user data stored in the application / user data storage unit, the application stored in the application / user data storage unit and Receiving user data to enable activation of application and user data browsing.
Further, the application / user data transmission candidate search unit searches for applications and user data as transmission candidates in the order of the previous activation time of browsing the application and user data stored in the memory.
Furthermore, the application / user data transmission candidate search unit sets transmission candidates as the transmission candidates in the order of the lowest number of activations of browsing of applications and user data stored in the memory and the oldest addition time of the previous activation time. Search for application and user data.

  Further, according to the present invention, in the method for expanding the free space of the memory for storing the application and user data, when it is confirmed that the free space is less than the specified value, the number of activations of browsing the application and the user data stored in the memory is determined. Searching the application and user data stored in the memory in the descending order as a compression candidate, compressing the searched application / user data, and searching as a compression candidate until the free space is confirmed to be equal to or greater than a specified value. And, in place of the application and user data stored in the memory, a step of storing the application and user data compressed by the application / user data compression unit. Provide That.

  Further, according to the present invention, in the method for expanding the free space of the memory for storing the application and user data, when it is confirmed that the free space is less than a specified value, the previous activation of browsing of the application and user data stored in the memory is performed. Searching application and user data stored in the memory in order of oldest time as a compression candidate, compressing the searched application / user data, and as a compression candidate until the free space is confirmed to be equal to or greater than a specified value And storing the application and user data compressed by the application / user data compression unit in place of the application and user data retrieved and stored in the memory. Enlarging method To provide.

  Further, according to the present invention, in the program for expanding the free space of the memory for storing the application and user data, when the free space is confirmed to be less than the specified value, the number of activations of browsing the application and the user data stored in the memory is determined. A procedure for searching for applications and user data stored in the memory in the lower order as a compression candidate, a procedure for compressing the searched application / user data, and a search for a compression candidate until the free space is confirmed to be equal to or greater than a specified value. And a procedure for saving the application and user data compressed by the application / user data compression unit in place of the application and user data saved in the memory, To provide.

  Further, according to the present invention, in the program for expanding the free space of the memory for storing the application and user data, when it is confirmed that the free space is less than the specified value, the previous activation of browsing of the application and user data stored in the memory is performed. A procedure for searching for applications and user data stored in the memory in order of oldest time as a compression candidate, a procedure for compressing the searched application / user data, and a compression candidate until the free space is confirmed to be equal to or greater than a specified value. And a procedure for storing the application and user data compressed by the application / user data compression unit in place of the application and user data retrieved and stored in the memory. Expansion To provide a method.

  Furthermore, the present invention provides a memory free space confirmation unit for confirming whether or not the free space of the memory is less than a prescribed value when writing the application and user data in the portable terminal device that expands the free space of the memory for storing the application and user data. When the memory free space confirmation unit confirms that the free space is less than a specified value, the application and user data stored in the memory in the order in which the activation count of browsing of the application and user data stored in the memory is low An application / user data compression candidate search unit for searching for a compression candidate, an application / user data compression unit for compressing the application / user data searched by the application / user data compression candidate search unit, and the memory The application / user data is searched for by the application / user data compression candidate search unit and is stored in the memory until the free space is confirmed to be equal to or greater than a predetermined value by the storage capacity check unit, instead of the application / user data. Provided is a portable terminal device comprising an application compressed by a data compression unit and an application / user data compression storage unit for storing user data.

  Further, the application / user data compression candidate search unit searches for applications and user data as compression candidates in order of the oldest start time of browsing the application and user data stored in the memory.

  As described above, according to the present invention, when it is confirmed that the free space is less than the specified value, the application and the user that are stored in the memory in the order from the lowest number of activations of browsing the application and user data stored in the memory. Search data as compression candidates, compress the searched application / user data, search for compression candidates until the free space is confirmed to be equal to or greater than a specified value, and store the application and user data stored in the memory Instead, since the application and user data compressed by the application / user data compression unit are stored, priority is given to applications and user data that are used less frequently, i.e., whose activation frequency is low. Pressure By, it is possible to secure an enlarged space of the flash memory.

Furthermore, since the free space of the flash memory is automatically expanded and secured without the user's awareness, the user's operation is reduced.
Further, by compressing the application and user data, it becomes possible to store more application and user data in the flash memory, so that the actual usage capacity of the flash memory can be reduced.

  Furthermore, it is expected that the same effect can be obtained even if the previous activation time of browsing the application and user data is compressed in the order of oldest.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is a block diagram showing a schematic configuration of a mobile terminal device network according to the present invention. As shown in this figure, the mobile terminal device network includes a mobile terminal device 170, a base station 100 that performs wireless communication with a plurality of mobile terminal devices 170, and a server on the Internet that is connected to the base station 100 via a gateway 200. 300, the mobile terminal device 170 is wirelessly connected to the base station 100, transmits and receives data, downloads various applications from the server 300 via the gateway 200, and simultaneously saves various memory for storing various applications. Is executed under program control.

The mobile terminal device 170 is provided with a flash memory 110, and various applications and user data downloaded from the server 300 are stored in the flash memory 110. User data refers to data managed by individual users, such as a telephone directory, image data, and music data.
Further, the mobile terminal device 170 is provided with a display unit 120. The display unit 120 is an LCD (liquid crystal display unit) and displays drawing data.

Furthermore, the operation unit 130 is provided in the mobile terminal device 170, and the operation unit 130 detects a user operation and enables execution of various functions of the mobile terminal device 170.
Further, the mobile terminal device 170 is provided with a wireless unit 140, and the wireless unit 140 performs wireless communication with the base station 100.
Further, the mobile terminal device 170 is provided with a RAM (Random Access Memory) 150. The RAM 150 is a work area, and sequentially expands data read from the flash memory 110.

Further, the portable terminal device 170 is provided with a control unit 160, and the control unit 160 includes a CPU (Central Processing Unit), and includes a flash memory 110, a display unit 120, an operation unit 130, a wireless unit 140, and a RAM 150. The entire terminal device 170 is controlled.
The control unit 160 includes a memory free space confirmation unit 160A, an application / user data compression candidate search unit 160B, an application / user data compression unit 160C, and an application / user data decompression unit 160D.

When there is a write request to the flash memory 110, the memory free space confirmation unit 160A confirms whether the free space of the flash memory 110 is equal to or greater than a specified value.
The application / user data compression candidate search unit 160B searches for applications and user data as compression candidates in descending order of activation frequency from the application activation frequency and the user data browsing activation frequency.

The application / user data compression unit 160C preferentially compresses the application and user data searched by the application / user data compression candidate search unit 160B.
The application / user data decompression unit 160D decompresses the compressed application and user data when there is a request for activation and browsing activation of the application and user data compressed by the application / user data compression unit 160B.

  The flash memory 110 is provided with an application / user data compression storage unit 110A. The application / user data compression storage unit 110A deletes the application and user data before being compressed by the application / user data compression unit 160C from the flash memory 110. In other words, the application / user data compressed by the application / user data compression unit 160C is re-stored so as to save the application and user data before being compressed.

  FIG. 2 is a diagram showing applications and user data searched by the application / user data compression candidate search unit 160B of the control unit 160 in FIG. As shown in FIG. 5A, the application / user data compression candidate search unit 160B searches for applications as compression candidates in order n1 (= 1, 2,...) In ascending order of application activation.

Further, as shown in FIG. 5B, the application / user data compression candidate search unit 160B searches the user data as compression candidates in the order of the user data browsing activation frequency n1 (= 1, 2,...). .
FIG. 3 is a flowchart for explaining a series of control operation examples of data writing by the control unit 160 of the mobile terminal device 170 in FIG. As shown in this figure, in step S401, when the control unit 160 receives various applications from the server 300 and the operation unit 130 detects an operation for writing the application and user data, the data is written to the flash memory 110. Start controlling.

In step S402, n1 = 1 is set.
In step S403, the memory free space confirmation unit 160A of the control unit 160 confirms the free space of the flash memory 110. If the free space is greater than or equal to the specified value, the process proceeds to step S408.
In step S404, if the free capacity is less than the specified value, it is confirmed whether n1 = 1. If n> 1, the process proceeds to step S406.

In step S405, when n1 = 1, the application / user data compression candidate search unit 160B of the control unit 160 determines the order of the number of activations from the number of activations of the application and the number of activations of browsing the user data n1 (= 1, 2)) and search for application and user data. If n> 1, the search process is omitted.
In step S406, the application / user data compression unit 160C preferentially compresses the application and user data searched by the application / user data compression candidate search unit 160B when the number of activations is the n1th lowest, and stores it in the flash memory 110. Instead of the application and user data being stored, the compressed application and user data are stored in the application / user data compression storage unit 110A of the flash memory 110.

  In step S407, n1 = n1 + 1 is set, and the process returns to step S403. In step S403, the memory free space confirmation unit 160A rechecks the free space of the flash memory 110, and if the free space is less than the specified value, the next candidate The application and user data are compressed, and the above process is repeated until the free space exceeds a specified value. That is, the application and user data whose number of activations is first, second,..., N1 in the order of n1 are compressed until the free space becomes equal to or greater than the specified value, and compressed in place of the application and user data stored in the flash memory 110. The saved application and user data are stored in the application / user data compression storage unit 110A.

In step S408, when the memory free space confirmation unit 160A confirms that the free space of the flash memory 110 is equal to or greater than the specified value, the control unit 160 controls writing of application and user data, and ends the process.
FIG. 4 is a flowchart illustrating a series of control operations for starting browsing of applications and user data by the control unit 160 of the mobile terminal device 170 in FIG.

In step S <b> 411, the control unit 160 detects an operation for starting browsing of applications and user data by the operation unit 130.
In step S <b> 412, the control unit 160 confirms whether the application and user data that have been activated are compressed and stored in the application / user data compression storage unit 110 </ b> A of the flash memory 110. When it cannot confirm, it progresses to step S414.

In step S413, if the data is compressed and stored, the application / user data decompressing unit 160D decompresses the corresponding application and user data compressed and stored in the application / user data compressing and storing unit 110A.
In step S <b> 414, the control unit 160 reads the application and user data for which an activation request operation has been performed from the flash memory 110.

In step S415, the control unit 160 expands the application and user data read from the flash memory 110 or the application and user data decompressed by the application / user data decompression unit 160D in the RAM 150.
In step S416, the control unit 160 activates browsing of the application and user data developed in the RAM 150.

In step S417, the control unit 160 stores the activated application and user data activation count and activation time in the flash memory 110, and ends the process.
Therefore, according to the present invention, the free space of the flash memory 110 is expanded and secured by preferentially compressing applications and user data that are used less frequently, that is, applications and user data that are not activated frequently. It becomes possible.

Furthermore, since the free capacity of the flash memory 110 is automatically expanded and secured without the user being aware of it, the user's operation is reduced.
Furthermore, by compressing the application and user data, more applications and user data can be stored in the flash memory 110, so that the actual usage capacity of the flash memory 110 can be reduced.

  FIG. 5 shows a first modification of FIG. 2 and shows the application and user data searched by the application / user data compression candidate search unit 160B of the control unit 160 in FIG. As shown in FIG. 5A, the application / user data compression candidate search unit 160B searches for applications as compression candidates in order n2 (= 1, 2,.

Further, as shown in FIG. 5B, the application / user data compression candidate search unit 160B searches for user data as compression candidates in order n2 (= 1, 2,. Is done.
FIG. 6 is a flowchart for explaining a series of control operation examples of data writing by the control unit 160 of the mobile terminal device 170 in FIG. As shown in the figure, in step S421, when the control unit 160 receives various applications from the server 300 and the operation unit 130 detects an operation of writing the application and user data, the data writing to the flash memory 110 is performed. Start controlling.

In step S422, n2 = 1 is set.
In step S423, the memory free space confirmation unit 160A of the control unit 160 confirms the free space of the flash memory 110. If the free space is greater than or equal to the specified value, the process proceeds to step S428.
In step S424, if the free capacity is less than the specified value, it is confirmed whether n2 = 1. If n2> 1, the process proceeds to step S426.

  In step S425, when n2 = 1, the application / user data compression candidate search unit 160B of the control unit 160 has the previous activation time older than the previous activation time of the application and the previous activation time of user data browsing. The application and user data are searched in order n2 (= 1, 2,...). If n2> 1, the search process is omitted.

  In step S426, the application / user data compression unit 160C gives priority to the application and user data searched by the application / user data compression candidate search unit 160B that the previous activation time is n2 (= 1, 2,...) The oldest. The compressed application and user data are stored in the application / user data compression storage unit 110A of the flash memory 110 instead of the application and user data stored in the flash memory 110.

  In step S427, n2 = n2 + 1 is set, and the process returns to step S423. In step S423, the memory free space confirmation unit 160A confirms the free space of the flash memory 110 again. If the free space is less than the specified value, the next candidate The application and user data are compressed, and the above process is repeated until the free space exceeds a specified value. That is, the old application and user data are compressed in the n2 order of the first startup time, first, second,... Until the free space becomes the specified value or more, and instead of the application and user data stored in the flash memory 110, The compressed application and user data are stored in the application / user data compression storage unit 110A.

In step S428, if the memory free space confirmation unit 160A confirms that the free space in the flash memory 110 is equal to or greater than the specified value, the control unit 160 controls writing of the application and user data, and ends the process.
Therefore, according to the present invention, the free space of the flash memory 110 is expanded by preferentially compressing applications and user data that are used less frequently, that is, applications and user data that have been started last time when browsing applications and user data. It becomes possible to secure.

Furthermore, since the free capacity of the flash memory 110 is automatically expanded and secured without the user being aware of it, the user's operation is reduced.
Furthermore, by compressing the application and user data, more applications and user data can be stored in the flash memory 110, so that the actual usage capacity of the flash memory 110 can be reduced.

  FIG. 7 is a second modification example of FIG. 2, and is a diagram showing applications and user data searched by the application / user data compression candidate search unit 160B of the control unit 160 in FIG. As shown in FIG. 5A, the application / user data compression candidate search unit 160B performs the order n1 (= 1, 2,...) In which the application activation count is low and the order n2 (= 1,. ) Are searched for compression candidates in order n3 (= 1, 2,...) In ascending order.

Further, as shown in FIG. 5 (b), the application / user data compression candidate search unit 160B uses the order n1 (= 1, 2. = 1, 2,...), The user data is searched as a compression candidate in order n3 (= 1, 2,.
FIG. 8 is a flow chart for explaining a series of control operation examples of data writing by the control unit 160 of the portable terminal device 170 in FIG. As shown in the figure, in step S431, when the control unit 160 receives various applications from the server 300 and the operation unit 130 detects an operation for writing the application and user data, the data is written to the flash memory 110. Start controlling.

In step S432, n3 = 1 is set.
In step S433, the memory free space confirmation unit 160A of the control unit 160 confirms the free space of the flash memory 110. If the free space is equal to or greater than the specified value, the process proceeds to step S438.
In step S434, if the free capacity is less than the specified value, it is confirmed whether n3 = 1. If n3> 1, the process proceeds to step S436.

  In step S435, in the case of n3 = 1, the application / user data compression candidate search unit 160B of the control unit 160 determines the number of activations from the number of activations of the application and the number of activations of browsing user data in the order of the number of activations n1 (= 1, 2) and the order n2 (= 1, 2,...) Of the previous activation time in the oldest order n2 (= 1, 2,...) Are searched in order n3 (= 1, 2,...). If n3> 1, the search process is omitted.

  In step S436, the application / user data compression unit 160C causes the application / user data compression candidate search unit 160B to start with the order n1 (= 1, 2,... ..) Is preferentially compressed when the order of the total value is n3 (= 1, 2,...) Is the lowest, and instead of the application and user data stored in the flash memory 110, The compressed application and user data are stored in the application / user data compression storage unit 110A of the flash memory 110.

  In step S437, n3 = n3 + 1 is set, and the process returns to step S433. In step S433, the memory free space confirmation unit 160A confirms the free space of the flash memory 110 again. If the free space is less than the specified value, the next candidate The application and user data are compressed, and the above process is repeated until the free space exceeds a specified value. That is, the total value of the order n1 (= 1, 2...) In which the number of activations is low and the order n2 (= 1, 2. ,... Are compressed in order of n3, and the compressed application and user data are stored in the application / user data compression storage unit 110A instead of the application and user data stored in the flash memory 110.

In step S438, when the memory free space confirmation unit 160A confirms that the free space in the flash memory 110 is equal to or greater than the specified value, the control unit 160 controls writing of the application and user data, and ends the process.
Therefore, according to the present invention, applications and user data that are used less frequently, that is, applications and user data that have a low total value of the order in which the application and user data browsing times are low and the order in which the previous activation times are old are preferentially compressed. By doing so, it becomes possible to expand and secure the free capacity of the flash memory 110.

Furthermore, since the free capacity of the flash memory 110 is automatically expanded and secured without the user being aware of it, the user's operation is reduced.
Furthermore, by compressing the application and user data, more applications and user data can be stored in the flash memory 110, so that the actual usage capacity of the flash memory 110 can be reduced.

  In the above description, the total value of the order n1 (= 1, 2,...) With the lowest number of activations and the order n2 (= 1, 2,...) With the oldest activation time is used. A weighted total value may be obtained by applying a weight to the order n2 with the oldest activation times.

  FIG. 9 is a modification example of FIG. 1 and is a block diagram showing a schematic configuration of a mobile terminal device network according to the present invention. As shown in this figure, compared with FIG. 1, the application / user data compression candidate search unit 160B, the application / user data compression unit 160C, and the application / user data compression storage unit 110A of the control unit 160 of the portable terminal device 170 are included. Instead, an application / user data transmission candidate search unit 160E and an application / user data transmission / reception unit 160F are provided, and an application / user data storage unit 300A is provided in the server 300.

The application / user data transmission candidate search unit 160E searches for applications and user data whose activation count is low among the applications and user data stored in the flash memory 110 as transmission candidates.
The application / user data transmission / reception unit 160F transmits / receives the application and user data searched by the application / user data transmission candidate search unit 160E from the portable terminal device 170 to the server 300 via the radio unit 140, the base station 100, and the gateway 200. Against.

  The server 300 stores the application and user data received from the application / user data transmission / reception unit 160F of the mobile terminal device 170 in the application / user data storage unit 300A, and receives a transmission request from the application / user data transmission / reception unit 160F of the mobile terminal device 170. The existing application and user data are extracted from the application / user data storage unit 300A and transmitted to the application / user data transmission / reception unit 160F of the portable terminal device 170.

  FIG. 10 is a flowchart for explaining a series of control operation examples of data writing by the control unit 160 of the mobile terminal device 170 in FIG. As shown in this figure, in comparison with FIG. 3, when n1 = 1 in step S445, the application / user data transmission candidate search unit 160E of the control unit 160 displays the number of times the application has been started and user data browsing. The application and user data are searched in the order of the number of activations from the number of activations to the order n1 (= 1, 2,...). If n> 1, the search process is omitted.

  In step S446, the application / user data transmission / reception unit 160F preferentially selects the application and user data retrieved by the application / user data transmission candidate search unit 160E as the n1th lowest number of activations, the radio unit 140, the base station 100, Instead of the application and user data transmitted to the server 300 via the gateway 200 and stored in the flash memory 110, it is stored in the application / user data storage unit 300A.

The other processes are the same and will not be described.
FIG. 11 is a flowchart for explaining a series of control operation examples of data writing by the control unit 160 of the mobile terminal device 170 in FIG. In step S451, the control unit 160 detects an operation for starting browsing of the application and user data by the operation unit 130.

In step S <b> 452, the control unit 160 confirms whether the application and user data that have been activated are stored in the application / user data storage unit 300 </ b> A of the server 300. If it can be confirmed that the data has been saved, the process proceeds to step S454.
In step S453, if not stored, the control unit 160 reads the application and user data from the flash memory 110.

In step S454, the application / user data transmission / reception unit 160E requests the server 300 to transmit the corresponding application and user data, and receives the application and user data read from the application / user data storage unit 300A of the server 300. To do.
In step S455, the control unit 160 expands the application and user data read from the flash memory 110 or the application and user data read from the application / user data storage unit 300A of the server 300 in the RAM 150.

In step S456, the control unit 160 activates browsing of the application and user data developed in the RAM 150.
In step S457, the control unit 160 stores the activated application and the number of times the user data is browsed and the activation time in the flash memory 110, and ends the process.

Therefore, according to the present invention, since the application and user data that is not used frequently, that is, the application and user data are not activated frequently are transmitted to the server preferentially and are not stored in the flash memory 110, the flash memory 110 free capacity can be expanded and secured.
After saving in the application / user data storage unit 300A of the server 300, it is possible to improve convenience by realizing without saving the user that the application 300 is stored in the server 300 when the application is started or when browsing of user data is started. It leads to.

That is, the free space of the flash memory 110 is automatically expanded and secured without being conscious of the user, leading to a reduction in user operations.
Furthermore, by compressing the application and user data, more applications and user data can be stored in the flash memory 110, so that the actual usage capacity of the flash memory 110 can be reduced.

  In the above-described embodiment, the application and user data are transmitted to the server 300 in the order of the lowest number of activations. However, the previous activation times are in the oldest order or the oldest activation times and the previous activation times are in the oldest order. The application and user data may be transmitted to the server 300 in order of increasing addition value.

  The mobile terminal device has been described above. However, the present invention is not limited to this, and the present invention can be applied to a mobile phone, a PHS (simple mobile phone), and a PDA (mobile information terminal).

It is a block diagram which shows schematic structure of the portable terminal device network which concerns on this invention. FIG. 2 is a diagram illustrating an example of contents stored in an application / user data compression storage unit 110A of the flash memory 110 in FIG. 3 is a flowchart illustrating a series of control operation examples of data writing by a control unit 160 of the mobile terminal device 170 in FIG. 1. 2 is a flowchart illustrating a series of control operations for starting browsing of applications and user data by the control unit 160 of the mobile terminal device 170 in FIG. 1. FIG. 4 is a diagram for explaining a content example stored in an application / user data compression storage unit 110A of the flash memory 110 in FIG. 1, which is a first modification of FIG. 2; FIG. 6 is a flowchart illustrating a series of control operation examples of data writing by the control unit 160 of the mobile terminal device 170 in FIG. 1, which is a first modification of FIG. 3. FIG. 8 is a flowchart for explaining a series of control operation examples of data writing by the control unit 160 of the mobile terminal device 170 in FIG. 6 is a flowchart for explaining a series of control operation examples of data writing by the control unit 160 of the mobile terminal device 170 in FIG. 1, which is a second modification example of FIG. 3. It is a modification of FIG. 1, and is a block diagram showing a schematic configuration of a mobile terminal device network according to the present invention. 10 is a flowchart for explaining a series of control operation examples of data writing by the control unit 160 of the mobile terminal device 170 in FIG. 9, which is a third modification example of FIG. 3. 10 is a flowchart illustrating a series of control operation examples of data writing by the control unit 160 of the mobile terminal device 170 in FIG. 9.

Explanation of symbols

DESCRIPTION OF SYMBOLS 100 ... Base station 110 ... Flash memory 110A ... Application / user data compression preservation | save part 120 ... Display part 130 ... Operation part 140 ... Radio | wireless part 150 ... RAM
160 ... Control unit 160A ... Memory free space confirmation unit 160B ... Application / user data compression candidate search unit 160C ... Application / user data compression unit 160D ... Application / user data decompression unit 160E ... Application / user data transmission candidate search unit 160F ... Application / User data transmission / reception unit 170 ... Mobile terminal device 200 ... Gateway 300 ... Server 300A ... Application / user data storage unit

Claims (15)

In an apparatus for expanding the free space of memory for storing application and user data,
A memory free space confirmation unit for confirming whether the free space of the memory is less than a specified value when writing application and user data;
When the memory free space confirmation unit confirms that the free space is less than the specified value, the application and user data stored in the memory are compressed in the order of the number of times of activation of viewing of the application and user data stored in the memory. An application / user data compression candidate search unit for searching as candidates;
An application / user data compression unit that compresses the application / user data searched by the application / user data compression candidate search unit;
The application / user data compression candidate search unit searches the application / user data compression candidate search unit until the memory free space confirmation unit confirms that the free space is equal to or greater than a specified value, and instead of the application and user data stored in the memory, the application An apparatus for expanding the free space of a memory, comprising: an application compressed by a user data compression unit and an application that stores user data / a user data compression storage unit. Further, an application / user data decompression unit is provided, and the application / user data decompression unit has an activation request when there is an activation request for browsing the application and user data stored in the application / user data compression storage unit. 2. The apparatus for expanding the free space of a memory according to claim 1, wherein the compression of the user data is decompressed to enable the browsing of the application and the user data. The application / user data compression candidate search unit searches for applications and user data as compression candidates in order of oldest start time of browsing of applications and user data stored in the memory. Item 2. The device for expanding the free space of the memory according to Item 1. The application / user data compression candidate search unit is configured to select the application and the user data as compression candidates in the order from the lowest addition count of the application and user data browsing activation count in the memory and the oldest activation time of the previous activation time. 2. The memory free capacity expansion device according to claim 1, wherein user data is searched. 5. The memory free capacity expansion device according to claim 4, wherein the added value is a weighted value in an order from the oldest start count to the oldest start time. In an apparatus for expanding the free space of memory for storing application and user data,
A memory free space confirmation unit for confirming whether the free space of the memory is less than a specified value when writing application and user data;
When the memory free space confirmation unit confirms that the free space is less than the specified value, the application and user data stored in the memory are transmitted in the order of the number of times the application and user data are browsed in ascending order. An application / user data transmission candidate search unit for searching as a candidate;
An application / user data compression unit that compresses application / user data that is transmitted by the application / user data transmission candidate search unit to the server on the Internet;
The application / user data transmission candidate search unit searches the application / user data transmission candidate search unit until the memory free space confirmation unit confirms that the free space is equal to or greater than a predetermined value, and instead of the application and user data stored in the memory, the application An apparatus for expanding the free space of a memory, comprising: an application / user data storage unit that stores an application and user data transmitted to the server by a user data transmission / reception unit. The application / user data transmission / reception unit, when there is an activation request for browsing of the application and user data stored in the application / user data storage unit, the application and user data stored in the application / user data storage unit 7. The device for expanding the free space of a memory according to claim 6, wherein the activation of browsing of applications and user data is enabled by receiving. The application / user data transmission candidate search unit searches for applications and user data as transmission candidates in order of the previous activation time of browsing of applications and user data stored in the memory. Item 7. The device for expanding the free space of the memory according to Item 6. The application / user data transmission candidate search unit sets the application and user data transmission candidates as transmission candidates in the order from the lowest addition count of the application and user data browsing activation count to the oldest activation time of the previous activation time. The apparatus for expanding a free space of a memory according to claim 6, wherein user data is searched. In the method for expanding the free space of memory for storing application and user data,
When it is confirmed that the free space is less than a specified value, searching for applications and user data stored in the memory in order from the lowest number of activation times of browsing the application and user data stored in the memory as compression candidates;
Compressing the retrieved application / user data;
Until the free space is confirmed to be equal to or greater than the specified value, the application and user data compressed as a candidate for compression and compressed by the application / user data compression unit are used instead of the application and user data stored in the memory. A method for expanding the free space of a memory, comprising: a step of storing. In the method for expanding the free space of memory for storing application and user data,
When it is confirmed that the free space is less than a specified value, the application and user data stored in the memory in the order of oldest start time of browsing the application and user data stored in the memory are searched as compression candidates. When,
Compressing the retrieved application / user data;
Until the free space is confirmed to be equal to or greater than the specified value, the application and user data compressed as a candidate for compression and compressed by the application / user data compression unit are used instead of the application and user data stored in the memory. A method for expanding the free space of a memory, comprising: a step of storing. In the memory free space expansion program for storing application and user data,
When the free space is confirmed to be less than a specified value, a procedure for searching for applications and user data stored in the memory as compression candidates in order from the lowest number of activations of browsing the application and user data stored in the memory;
A procedure to compress the retrieved application / user data;
Until the free space is confirmed to be equal to or greater than the specified value, the application and user data compressed as a candidate for compression and compressed by the application / user data compression unit are used instead of the application and user data stored in the memory. A method for expanding a free space of a memory, comprising: a saving procedure. In the memory free space expansion program for storing application and user data,
When the free space is confirmed to be less than a specified value, a procedure for searching for applications and user data stored in the memory in order from the oldest start time of browsing the applications and user data stored in the memory as compression candidates When,
A procedure to compress the retrieved application / user data;
Until the free space is confirmed to be equal to or greater than the specified value, the application and user data compressed as a candidate for compression and compressed by the application / user data compression unit are used instead of the application and user data stored in the memory. A method for expanding a free space of a memory, comprising: a saving procedure. In a mobile terminal device that expands the free space of a memory for storing application and user data,
A memory free space confirmation unit for confirming whether the free space of the memory is less than a specified value when writing application and user data;
When the memory free space confirmation unit confirms that the free space is less than the specified value, the application and user data stored in the memory are compressed in the order of the number of times of activation of viewing of the application and user data stored in the memory. An application / user data compression candidate search unit for searching as candidates;
An application / user data compression unit that compresses the application / user data searched by the application / user data compression candidate search unit;
The application / user data compression candidate search unit searches the application / user data compression candidate search unit until the memory free space confirmation unit confirms that the free space is equal to or greater than a specified value, and instead of the application and user data stored in the memory, the application A portable terminal device comprising: an application compressed by a user data compression unit and an application / user data compression storage unit that stores user data. The application / user data compression candidate search unit searches for applications and user data as compression candidates in order of oldest start time of browsing of applications and user data stored in the memory. Item 15. The mobile terminal device according to Item 14.

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