JP6510445B2 - INFORMATION PROCESSING SYSTEM, INFORMATION PROCESSING DEVICE, AND INFORMATION PROCESSING METHOD - Google Patents

Description

  The present invention relates to an information processing system, an information processing apparatus, and an information processing method.

  BACKGROUND A file system is known that manages files stored in a storage medium of an information processing apparatus such as a computer or a smartphone. Patent Document 1 discloses a technique for extracting block data in which a change has occurred among a plurality of block data in a file, and backing up the extracted block data.

JP, 2009-163334, A

  In the prior art, management information (meta information) including backup generation information is stored in association with each file so that the file can be read out for each generation. By doing this, the information processing apparatus that backs up the file can extract the file in which the change has occurred and back up the extracted file.

  Among the files stored in the storage medium of the information processing apparatus, there are files which are not appropriate to move the file to another information processing apparatus. Conventionally, in order to prevent such files from being backed up, in the information processing apparatus performing backup, it is necessary to extract the files to be excluded from backup, which takes a long time for backup. .

  Therefore, the present invention has been made in view of these points, and an object thereof is to shorten the backup time in the information processing apparatus.

  An information processing system according to a first aspect of the present invention includes a first information processing apparatus and a second information processing apparatus, and the first information processing apparatus stores a file including a plurality of blocks. An information generation unit generating deletion file information for specifying a file to be deleted among the files stored in the first storage unit; data of one or more blocks included in the file; and the deletion file And a second storage unit storing a file including a plurality of blocks, data of the one or more blocks, and the deleted file information. After the storage unit stores the data of the one or more blocks received by the receiving unit in the second storage unit, Having a file system unit to delete the file indicated by the second storage unit.

  The first information processing apparatus further includes, for example, a block management unit that extracts a change block in which a change has occurred after transmitting one or more blocks included in the file to the storage device; The data of the modified block and the deleted file information are transmitted to the storage device, the receiving unit receives the data of the modified block and the deleted file information from the storage device, and the file system unit is configured of the modified block After data is stored in the second storage unit, the file indicated by the deleted file information is deleted from the second storage unit.

  The information generation unit may generate the deleted file information including information for specifying a file prohibited to be used in the second information processing apparatus.

  The first storage unit stores content holder information indicating a user who can hold the file in association with the file, and the information generation unit stores the content holder information by the user of the second information processing apparatus. The deleted file information may be generated including information for identifying a file not included.

  The information generation unit may generate the deleted file information including information for specifying a file of a predetermined type of extension. Further, the information generation unit may generate the deleted file information including information for specifying a file of a type set by a user. The information generation unit may generate the deleted file information including information for specifying a file selected by a user.

  An information processing apparatus according to a second aspect of the present invention is a storage unit for storing a file including a plurality of blocks, and deleted file information for specifying a file to be deleted among files stored in the storage unit. An information generation unit to generate, and a transmission unit to transmit data of one or more blocks included in the file and the deletion file information to a storage device.

  An information processing apparatus according to a third aspect of the present invention is a storage unit storing a file including a plurality of blocks, data of one or more blocks included in the file stored in the storage unit, and the storage unit Among the files including the plurality of blocks, a receiving unit for receiving from the storage device the deleted file information indicating the file to be deleted, and the storage unit storing the data of the one or more blocks received by the receiving unit And a file system unit that later deletes the file indicated by the deleted file information from the storage unit.

  An information processing method according to a fourth aspect of the present invention is an information processing method for transferring a file stored in a first information processing apparatus to a second information processing apparatus, wherein the first information processing apparatus executes Generating deleted file information for identifying a file to be deleted among files stored in the first storage unit of the first information processing apparatus; and the file stored in the first storage unit Transmitting the data of one or more blocks included in the data and the deletion file information to the storage device, and the data of the one or more blocks and the deletion file information to be executed by the second information processing apparatus Receiving from the storage device; storing the received one or more blocks of data in the second storage unit of the second information processing apparatus; The data of the one or more blocks after storing in the second storage unit has, and a step of deleting the file in which the deletion file information indicates from said second storage unit.

  According to the present invention, it is possible to shorten the backup time in the information processing apparatus.

It is a figure showing composition of information processing system S concerning this embodiment. It is a figure for demonstrating block data. FIG. 2 is a diagram showing the configuration of a communication terminal 1; It is a figure which shows the process sequence in the case of transferring the data of a change block from the communication terminal 1a to the communication terminal 1b.

[Overview of Information Processing System S]
FIG. 1 is a diagram showing the configuration of an information processing system S according to the present embodiment. The information processing system S includes a communication terminal 1a, a communication terminal 1b, and a storage device 2.

  The communication terminal 1a and the communication terminal 1b are information processing apparatuses that store various types of information and process the information by a built-in CPU (Central Processing Unit). The information processing system S is an information transfer system capable of backing up data stored in the communication terminal 1a to the storage device 2 and restoring data backed up in the storage device 2 by the communication terminal 1b. Backup is a process of transferring data stored in its own storage medium to another storage medium. Restoration is a process of receiving transferred data backed up to another storage medium and storing the transferred data in its own storage medium.

  In this embodiment, although the case where the communication terminal 1a and the communication terminal 1b are different information processing apparatuses (first and second information processing apparatuses, respectively) will be described, the communication terminal 1a restores data. It may also be used as the communication terminal 1b, and after the data in the communication terminal 1a is temporarily backed up in the storage device 2, it may be restored by the communication terminal 1a. In the following description, when the matters applicable to both the communication terminal 1a and the communication terminal 1b are described, the communication terminal 1 may be referred to.

  The communication terminal 1a stores data D1 including one or more files in a storage medium. The file included in the data D1 is composed of a plurality of blocks, and the communication terminal 1a can extract data to be backed up in block units. In the present specification, data of each block may be referred to as block data.

  FIG. 2 is a diagram for explaining block data. FIG. 2A shows that the data D1 includes a plurality of files A, B, C, and D. The numbers in the figure indicate the data size (KB).

  FIG. 2B shows that each file is composed of a plurality of block data. File A is composed of block data a, b, c, d, file B is composed of block data e, f, g, h, i, j, and file C is composed of block data k, l , File D is composed of block data m, n, o. The size of the block data is, for example, 10 KB, which is smaller than the file size.

  FIG. 2C shows that the data indicated by the halftone dot has been changed among the data D1 stored in the storage medium of the communication terminal 1a. The 3 KB data in the file A, the 14 KB data in the file B, and the 5 KB data in the file D have been changed, and the file C has not been changed.

  Suppose that the user of the communication terminal 1a backs up the data D1 stored in the communication terminal 1a to the communication terminal 1b before the change shown in FIG. 2C occurs. In this case, when a change occurs in part of the data D1 stored in the communication terminal 1a, the user wants to reflect the changed content also on the communication terminal 1b. In such a case, the user can restore the data changed in the communication terminal 1a to the storage device 2 and then restore the data using the communication terminal 1b. When backing up in units of files, it is necessary to back up file A, file B and file D, so as shown in FIG. 2 (d), the communication terminal 1a transmits a total of 130 KB of data to the storage apparatus 2 There must be.

  On the other hand, as shown in FIG. 2 (e), the communication terminal 1a in this embodiment extracts block data c, i, j, o including data in which a change has occurred, and extracts the extracted block data c, Only i, j, o are sent to the storage device 2. By doing this, the capacity of data to be transmitted to the storage device 2 is 40 KB, so the amount of data transmission is less than when backing up in file units, and high-speed backup processing can be realized. .

  FIG. 1 shows the case where there are two block data in which the change has occurred, and the block data in which the change has occurred is shown as block data d1 and block data d2. Here, among the block data in which the change has occurred, there is block data that should not be stored in the communication terminal 1b. For example, there may be block data included in a file for which only the user of the communication terminal 1a is permitted to use the content, or block data included in a file that the user does not want to store in the communication terminal 1b. In FIG. 1, it is assumed that the block data d2 indicated by hatching is not to be stored in the communication terminal 1b, but is block data included in a file to be deleted (hereinafter referred to as a deletion target file).

  In the communication terminal 1a, it is checked whether block data for which a change has occurred is block data included in such a deletion target file, and processing for excluding the block data d2 from being backed up is block data d1 to be backed up. Processing time until the storage device 2 is transmitted. Therefore, the communication terminal 1a according to the present embodiment transmits the block data d2 included in the deletion target file to the storage device 2 without excluding the block data d2 from the target to be backed up, and the deletion file information for specifying the deletion target file. The deletion file list L including is transmitted to the storage device 2. The communication terminal 1a can create the deleted file list L in advance, so that even if the deleted file list L is sent to the storage device 2, it does not affect the processing time for executing block data backup.

  In the communication terminal 1b, the block data d1 and the block data d2 backed up in the storage device 2 are received, and the received block data is stored in the storage medium to temporarily store the same data D1 as the communication terminal 1a. Hold. Thereafter, the communication terminal 1b refers to the deleted file list L received from the storage device 2 and deletes the file included in the deleted file list L, thereby removing the data D2 in a state in which the block data d2 is deleted. Can be generated.

  As described above, in the information processing system S according to the present embodiment, when backing up in block data units, block data included in files that do not need to be backed up can be backed up without extending processing time at the time of backup. It is possible not to hold the communication terminal 1b. Since the frequency with which the communication terminal 1a backs up data is considered to be higher than the frequency with which the communication terminal 1b restores data, the information processing system S can prevent the backup time in the communication terminal 1a from being extended, It is suitable when backing up some data of the data being processed in block data units.

[Configuration of communication terminal 1]
FIG. 3 is a diagram showing the configuration of the communication terminal 1. In the following description, the case where the communication terminal 1 shown in FIG. 3 operates as the communication terminal 1a will be described. The communication terminal 1 includes a communication unit 11, a display unit 12, an operation unit 13, a storage unit 14, and a control unit 15. The control unit 15 includes an information generation unit 151, a file system unit 152 having a block management unit 153 and a file management unit 154, a transmission unit 155, and a reception unit 156.

  The communication unit 11 has a communication interface for transmitting and receiving data to and from the storage device 2. When the communication unit 11 transmits / receives data to / from the storage apparatus 2 via a wireless communication line such as LTE (Long Term Evolution) or Wi-Fi (registered trademark), the communication unit 11 includes a wireless communication unit. . The communication unit 11 transmits the data input from the transmission unit 155 to the storage device 2. Also, the communication unit 11 inputs the data received from the storage device 2 to the receiving unit 156.

  The display unit 12 is a display that displays information. The operation unit 13 is a device for the user to operate, and is, for example, a touch panel provided overlapping the display unit 12. The user can use the operation unit 13 to start a process of backing up data stored in the storage unit 14.

  The storage unit 14 is a storage medium such as a read only memory (ROM) and a random access memory (RAM). The storage unit 14 stores a program that the control unit 15 executes. In addition, various data used when the control unit 15 executes a program is stored. Data D1 in FIG. 1 is stored in the storage unit 14.

  The control unit 15 is, for example, a CPU (Central Processing Unit). The control unit 15 functions as an information generation unit 151, a file system unit 152, a block management unit 153, a file management unit 154, a transmission unit 155, and a reception unit 156 by executing the programs stored in the storage unit 14.

  The information generation unit 151 generates a deletion file list L including deletion file information for specifying a file to be deleted among the files stored in the storage unit 14. The information generation unit 151 inputs the generated deleted file list L to the transmission unit 155. The information generation unit 151 generates the deletion file list L based on various conditions described below.

  The information generation unit 151 puts, for example, information (hereinafter referred to as a file ID) for specifying a file prohibited from use in the information transfer destination communication terminal 1b in the deletion file list L. The file for which use in the communication terminal 1b is prohibited is, for example, a file for which copying and use are prohibited.

  The information generation unit 151 refers to the content holder information stored in the storage unit 14 in association with the file, whereby the user of the communication terminal 1b is not included in the content holder information, and the user of the communication terminal 1b possesses Delete the file ID of the file that is prohibited to be added to the delete file list L. By doing this, it is possible to prevent the user of the communication terminal 1b not having the right to possess the file from using the file.

  Further, the information generation unit 151 may put the file ID of the file having the predetermined type of extension in the deletion file list L. For example, when the file extension is an extension of a file protected by DRM (Digital Rights Management), the information generation unit 151 adds the file ID of this file to the deletion file list L to be protected by the DRM. It is possible that the file is copied to the communication terminal 1b and not saved in a usable state.

  Further, the information generation unit 151 may put the file ID of the file of the type set by the user in the deletion file list L. The user of the communication terminal 1a can set, for example, the type of file not to be transferred to the communication terminal 1b or the type of file to be transferred via the operation unit 13. The user can set the file type based on the file extension, the file creation date, the file name, and the like.

  For example, when the communication terminal 1b is a terminal shared by a family, for example, the user of the communication terminal 1a can include only the photo content created on the day of traveling by the family as a target to be transferred to the communication terminal 1b. . The user of the communication terminal 1a may include the image content with the extension jpg in the target to be transferred to the communication terminal 1b, and not include the e-mail content with the extension eml in the target to be transferred to the communication terminal 1b. it can.

  Further, the information generation unit 151 may put the file ID of the file selected by the user via the operation unit 13 in the deletion file list L. By doing this, the user of the communication terminal 1a can individually designate files that are not transferred to the communication terminal 1b.

  The file system unit 152 writes block data or a file in the storage unit 14 and reads block data or a file stored in the storage unit 14. The file system unit 152 includes a block management unit 153 that executes writing or reading of data in a file in units of blocks and a file management unit 154 that executes writing or reading in units of files. When backing up all the files and difference blocks stored in the storage unit 14 to the storage device 2, the file system unit 152 executes processing using the block management unit 153, and performs file processing based on the deleted file list L. At the time of deletion, the file management unit 154 is used to execute processing.

  The block managing unit 153 extracts block data to be backed up to the storage device 2 when the process of transferring the data D1 stored in the storage unit 14 to the communication terminal 1 b is activated via the operation unit 13 Do. The block management unit 153 extracts, for example, a change block in which a change has occurred after transmitting data of one or more blocks contained in the file in the data D1 to the storage device 2 last time. The block management unit 153 transmits the extracted data to the storage device 2 via the transmission unit 155.

  The block management unit 153 specifies the block changed after the previous backup date and time, for example, by referring to the change history of the block data stored in the storage unit 14, and extracts the specified block as a change block. When transferring data D1 for the first time from communication terminal 1a to communication terminal 1b, block managing unit 153 extracts all blocks of data D1 as a change block.

  When the block management unit 153 functions as the communication terminal 1 b that restores the data transferred to the storage device 2, the block management unit 153 receives the data of one or more change blocks transmitted by the communication terminal 1 a from the storage device 2, The data of one or more changed blocks is stored in the storage unit 14.

  When the file management unit 154 receives the deletion file list L from the storage device 2, the file indicated by the deletion file information included in the deletion file list L after the block management unit 153 stores the data of the changed block in the storage unit 14 Is deleted from the storage unit 14.

The transmission unit 155 transmits the deletion file list L input from the information generation unit 151 and the data of the change block input from the block management unit 153 to the storage device 2 via the communication unit 11.
When the receiving unit 156 functions as the communication terminal 1 b that restores the data transferred to the storage device 2, the receiving unit 156 transmits the deletion file list L transmitted to the storage device 2 by the communication terminal 1 a and the data of the change block as From the storage device 2 via The receiving unit 156 inputs the received deleted file list L into the file management unit 154, and inputs data of the change block into the block management unit 153.

[Data transfer sequence]
FIG. 4 is a diagram showing a processing sequence when data of a change block is transferred from the communication terminal 1a to the communication terminal 1b.
First, in the communication terminal 1a, the information generation unit 151 creates the deletion file list L in advance (S11). Thereafter, when the user performs a backup operation (S12), the communication terminal 1a reads the data of the change block from the storage unit 14 and creates backup data (S13). The transmitting unit 155 transmits the backup data and the deletion file list L to the storage device 2, and the storage device 2 stores the backup data and the deletion file list L in the storage medium.

  The communication terminal 1a may transmit, together with the backup data and the deleted file list L, authentication information such as a password for authenticating a terminal for which restoration of backup data is permitted to the storage device 2. In this case, the storage device 2 stores the authentication information in the storage medium in association with the backup data and the deletion file list L.

  Thereafter, in the communication terminal 1b, when the user performs a restore operation (S21), the transmission unit 155 transmits a restore request for transferring the backup data and the deleted file list L. The storage device 2 transmits the backup data and the deletion file list L to the communication terminal 1b in response to the restore request. When the storage device 2 stores authentication information in association with the backup data and the deletion file list L, the storage device 2 requests a password from the communication terminal 1b. The storage apparatus 2 transmits the backup data and the deletion file list L to the communication terminal 1b on condition that the password matches the password set by the communication terminal 1a.

  When the communication terminal 1b receives the backup data and the deletion file list L, the block management unit 153 stores all the backup data in the storage unit 14 (S22). When the data D1 is already stored in the storage unit 14, the block management unit 153 overwrites the received backup data on the data D1.

Subsequently, the file management unit 154 deletes the file corresponding to the file ID included in the deleted file list L from the storage unit 14 with reference to the deleted file list L (S23). The communication terminal 1b restarts after deleting the deletion target file (S24). After this, the user can access the file stored in the storage unit 14.
According to the above procedure, it is possible to selectively transfer the data of the change block included in the file other than the file to be deleted from the communication terminal 1a to the communication terminal 1b.

[Effect by information processing system S]
As described above, the information processing system S according to the present embodiment generates the deletion file list L including the information for specifying the file to be deleted in the communication terminal 1a serving as the backup source, and the communication terminal 1a The data of the block to be backed up and the deletion file list L are sent to the storage device 2 from the above. Then, the communication terminal 1b serving as the backup destination stores the data received from the storage device 2 in the storage unit 14, and then deletes the deletion target file specified by the deletion file list L.

  By doing this, in the communication terminal 1a, the data to be backed up can be transmitted to the storage device 2 at high speed, and the data contained in the file that should not be backed up in the communication terminal 1b is the communication terminal It can be prevented from being stored in a usable state in 1b.

  For example, the communication terminal 1a sets a file for which use in the communication terminal 1b is prohibited or a file for which the user of the communication terminal 1b is not registered as a content holder as a deletion target file. In this way, it is possible to prevent files that should not be used by the user of the communication terminal 1b from being stored in a usable state in the communication terminal 1b.

  The communication terminal 1a can also automatically recognize a file that should not be used by the communication terminal 1b by referring to the file extension, the date of creation, and the like. By doing this, the user can back up only the file that he / she wants to copy to the communication terminal 1b without spending time.

  Further, in the communication terminal 1a, since the user can set a file which the user does not want to copy to another terminal, even if the communication terminal 1b is a terminal shared with another person, the user Can safely back up your data.

  As mentioned above, although this invention was demonstrated using embodiment, the technical scope of this invention is not limited to the range as described in the said embodiment. It is apparent to those skilled in the art that various changes or modifications can be added to the above embodiment. In particular, the specific embodiment of the distribution and integration of the devices is not limited to the one illustrated above, and all or part of the specific embodiments according to various additions or the like or according to the functional load, in arbitrary units. It can be configured to be distributed or integrated functionally or physically.

REFERENCE SIGNS LIST 1 communication terminal 2 storage device 11 communication unit 12 display unit 13 operation unit 14 storage unit 15 control unit 151 information generation unit 152 file system unit 153 block management unit 154 file management unit 155 transmission unit 156 reception unit S information processing system

Claims (10)

A first information processing apparatus and a second information processing apparatus;
The first information processing apparatus is
A first storage unit storing a file including a plurality of blocks;
An information generation unit for generating deletion file information for specifying a file to be deleted among the files stored in the first storage unit, the file being prohibited from being used in the second information processing apparatus; ,
A transmitting unit that transmits data of one or more blocks included in the file and the deleted file information to a storage device;
Have
The second information processing apparatus is
A second storage unit storing a file including a plurality of blocks;
A receiving unit that receives the data of the one or more blocks and the deletion file information from the storage device;
A file system unit that deletes the file indicated by the deletion file information from the second storage unit after storing the data of the one or more blocks received by the receiving unit in the second storage unit;
An information processing system having The first information processing apparatus further includes a block management unit that extracts a change block in which a change has occurred after transmitting one or more blocks included in the file to the storage device,
The transmission unit transmits the data of the change block and the deletion file information to the storage device.
The receiving unit receives data of the changed block and the deleted file information from the storage device.
The file system unit deletes the file indicated by the deleted file information from the second storage unit after storing the data of the changed block in the second storage unit.
The information processing system according to claim 1. The file whose use in the second information processing apparatus is prohibited is a file whose copy and use are prohibited.
The information processing system according to claim 1 or 2. The first storage unit stores content holder information indicating a user who can hold the file in association with the file,
Files used in the second information processing apparatus is prohibited is a file that the user is not included in the second information processing apparatus to the content holder information,
The information processing system according to any one of claims 1 to 3. Files used in the second information processing apparatus is prohibited, the extension is a predetermined type of file,
The information processing system according to any one of claims 1 to 4. Files used in the second information processing apparatus is prohibited is set file types by user,
The information processing system according to any one of claims 1 to 5. Files used in the second information processing apparatus is prohibited, a file selected by the user,
The information processing system according to any one of claims 1 to 6. An information processing apparatus for storing files,
A first storage unit storing the file including a plurality of blocks;
An information generation unit for generating deletion file information for specifying a file to be deleted among the files stored in the first storage unit and which is prohibited to be used in another device ;
A transmitting unit that transmits data of one or more blocks included in the file and the deleted file information to a storage device;
Have
The other device stores the data of the one or more blocks received from the storage device in a second storage unit of the other device, and then the file indicated by the deleted file information received from the storage device is stored. Delete from the second storage unit,
Information processing device. An information processing apparatus,
A storage unit storing a file including a plurality of blocks;
Among the files including one or more blocks of data included in the file stored in the storage unit and the file including the plurality of blocks stored in the storage unit, the file to be deleted is prohibited from use in the information processing apparatus A receiving unit that receives, from the storage device, deleted file information indicating a file to be
The data of the one or more blocks received by the receiver after storing in the storage unit, have a, and the file system unit to delete the file that the deleted file information indicates from the storage unit,
The information processing apparatus, wherein the deletion file information is information transmitted to the storage apparatus from another information processing apparatus that has generated the deletion file information . An information processing method for transferring a file stored in a first information processing apparatus to a second information processing apparatus,
Executed by the first information processing apparatus;
Generation of deletion file information for identifying a file to be deleted among files stored in the first storage unit of the first information processing apparatus, the file being prohibited from being used in the second information processing apparatus Step to
Transmitting one or more blocks of data included in the file stored in the first storage unit and the deleted file information to a storage device;
Executed by the second information processing apparatus;
Receiving the data of the one or more blocks and the deletion file information from the storage device;
Storing the received data of the one or more blocks in a second storage unit of the second information processing apparatus;
Deleting the file indicated by the deletion file information from the second storage unit after storing the received one or more blocks of data in the second storage unit;
Information processing method having.

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