Control program and information terminal

Abstract

To provide a control program and an information terminal capable of suppressing oppression of a storage capacity of the information terminal by imaging data while suppressing deterioration of convenience.SOLUTION: A control program of an information apparatus 10 connectable to an external storage device 20 causes a processor 11 of the information apparatus 10 to store a content file 30 stored in a photo / video folder 13a in an internal storage 13 of the information apparatus 10 in the external storage device 20, compress data of the content file 30, store a compression file obtained by compressing the data in the information apparatus 10, and delete the content file 30 stored in the information apparatus 10.SELECTED DRAWING: Figure 3

Description

[Technical Field]

[0001] The present invention relates to a control program and an information terminal. [Background technology]

[0002] When preparing for the loss of image data (photos and videos) stored on an information terminal (smartphone or tablet), a common use case is to copy or move the image data to an external storage product.

[0003] Furthermore, when reducing the capacity of a smartphone, a method is known in which stored videos are compressed using a compressible application (see, for example, Non-Patent Document 1 below). Note that iPhone is a registered trademark. [Prior art documents] [Non-patent literature]

[0004] [Non-Patent Document 1] "How to compress videos on iPhone", Internet<https: / / media-hakase.com / column / article / page_3006.html> Summary of the Invention [Problem to be solved by the invention]

[0005] However, when image data is copied to an external storage product, it continues to occupy free space on the information terminal, whereas when image data is moved to an external storage product, the image data does not remain on the information terminal, so when you want to view the data, you need to connect the external storage product to the information terminal to view it, which reduces convenience.

[0006] The present invention has been made in consideration of the above circumstances, and aims to provide a control program and an information terminal that can reduce the pressure on the storage capacity of an information terminal caused by image data while suppressing a decrease in convenience. [Means for solving the problem]

[0007] The control program of the present invention is a control program for an information terminal connectable to a storage, A processor of the information terminal storing the content file stored in the information terminal in the storage; performing data compression on the content file; storing the compressed file obtained by the data compression in the information terminal; deleting the content file stored in the information terminal; It is used to execute processing.

[0008] The information terminal of the present invention is an information terminal connectable to a storage, storing the content file stored in the information terminal in the storage; performing data compression on the content file; storing the compressed file obtained by the data compression in the information terminal; deleting the content file stored in the information terminal; It is equipped with a processor. [Effects of the Invention]

[0009] According to the present invention, it is possible to provide a control program and an information terminal that can suppress a decrease in convenience and suppress a pressure on the storage capacity of the information terminal due to imaging data. [Brief explanation of the drawings]

[0010] [Figure 1] 1 is a diagram illustrating an example of a communication system to which an information terminal of the present invention is applied; [Figure 2]FIG. 2 is a diagram illustrating an example of hardware of an information terminal 10. [Figure 3] 1 is a first functional block diagram of an information terminal 10 and an external storage device 20. FIG. [Figure 4] 10 is a flowchart showing a first operation example of the information terminal 10. [Figure 5] FIG. 2 is a second functional block diagram of the information terminal 10 and the external storage device 20. [Figure 6] 10 is a flowchart showing a second operation example of the information terminal 10. [Figure 7] FIG. 14 is a diagram showing an example of a viewing screen 14A for a photo / video folder 13a. [Figure 8] FIG. 14 is a diagram showing an example of a viewing screen 14B for a dedicated folder 13b. DETAILED DESCRIPTION OF THE INVENTION

[0011] Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

[0012] (Embodiment) <Communication system to which the information terminal of the present invention is applied> 1 is a diagram showing an example of a communication system to which an information terminal of the present invention is applied. The communication system 1 shown in FIG.

[0013] The information terminal 10 is, for example, a portable information terminal. A portable information terminal generally has a small storage capacity, such as a smartphone or a tablet terminal. However, the information terminal 10 may also be, for example, a notebook personal computer or a desktop personal computer. The information terminal 10 is connectable to an external storage device 20.

[0014] The external storage device 20 is an example of "storage" in the present invention. The external storage device 20 is connected to the information terminal 10 by wire, for example, via USB (Universal Serial Bus) or Lightning. The external storage device 20 may also be connected to the information terminal 10 wirelessly via a wireless LAN (Local Area Network) or Bluetooth (registered trademark). Furthermore, the external storage device 20 may be a NAS (Network Attached Storage) or cloud storage.

[0015] <Configuration of information terminal 10> Fig. 2 is a diagram illustrating an example of hardware of the information terminal 10. As illustrated in Fig. 2, the information terminal 10 includes a processor 11, a main memory 12, an internal storage 13, a user I / F (interface) 14, a wireless communication I / F 15, and a wired communication I / F 16.

[0016] The processor 11 is a circuit that performs signal processing, and is, for example, a CPU (Central Processing Unit) that controls the entire information terminal 10. The processor 11 may be realized by other digital circuits such as an FPGA (Field Programmable Gate Array) or a DSP (Digital Signal Processor). The processor 11 may also be realized by combining a plurality of digital circuits.

[0017] The main memory 12 is, for example, a RAM (Random Access Memory). The main memory 12 is used as a work area for the processor 11. The internal storage 13 is, for example, a non-volatile memory such as a magnetic disk, an optical disk, or a flash memory. Various programs that operate the information terminal 10 are stored in the internal storage 13. The programs stored in the internal storage 13 are loaded into the main memory 12 and executed by the processor 11.

[0018] The user I / F 14 is a communication interface that communicates with the processor 11. The user I / F 14 functions as an input device and a display device for the processor 11. The user I / F 14 is configured, for example, with a touch panel, a keyboard, etc., and is configured to allow various commands to be input to the processor 11. The user I / F 14 is also configured to display various screens related to the control contents of the processor 11.

[0019] The wireless communication I / F 15 is a communication interface capable of performing wireless communication with the information terminal 10. The wireless communication I / F 15 may be capable of performing wireless communication using, for example, frequency bands of 2.4 GHz, 5 GHz, and 6 GHz. The information terminal 10 may be a wireless terminal compatible with wireless LAN wireless communication such as Wi-Fi 7.

[0020] The wired communication I / F 16 is a communication interface that performs wired communication with the information terminal 10. In the example shown in Fig. 2, the information terminal 10 is connected to the external storage device 20 by wire, but it may also be connected wirelessly.

[0021] <First functional block diagram of information terminal 10 and external storage device 20> FIG. 3 is a first functional block diagram of the information terminal 10 and the external storage device 20. As shown in FIG. 3, the information terminal 10 has an internal storage 13, which has a photo / video folder 13a and a dedicated folder 13b. The external storage device 20 has a storage 23, which has an information terminal folder 23a. The photo / video folder 13a is an example of the "first folder" of the present invention. The dedicated folder 13b is an example of the "second folder" of the present invention.

[0022] The photo / video folder 13a is a folder in which content files 30 are saved. The "content files 30" are image data obtained by capturing images with the information terminal 10. The "image data" is, for example, a video file or a photo file. The content files 30 may be, for example, video or photo files downloaded from the web. Video files, photo files, etc. created by capturing images with the information terminal 10 are automatically saved in the photo / video folder 13a. For example, a viewing application for viewing the captured image data is installed in the information terminal 10. This viewing application is configured to automatically read the captured image data in the photo / video folder 13a when started up.

[0023] The dedicated folder 13b stores compressed files 31, which are created by compressing content files 30. "Data compression" refers to the process of generating a compressed file from which the content file 30 can be restored. However, data compression is not limited to lossless compression, which allows complete restoration, but may also be lossy compression, which allows incomplete restoration. The "compressed file 31" refers to image data (still images or videos) that have the same content as the original content file 30 but are degraded in quality compared to the original content file 30 and can be viewed independently. The dedicated folder 13b is, for example, a dedicated folder for a "control program." For example, the "control program" not only has the function of viewing content files 30 stored in the photo / video folder 13a, but also the function of viewing compressed files 31 stored in the dedicated folder 13b.

[0024] The information terminal folder 23a is a folder in which the content files 30 stored in the information terminal 10 are stored.

[0025] The information terminal 10 saves the content file 30 saved in the photo / video folder 13a of the information terminal 10 in the information terminal folder 23a of the external storage device 20. Next, the information terminal 10 deletes the content file 30 saved in the photo / video folder 13a. The information terminal 10 then compresses the content file 30 saved in the information terminal folder 23a of the external storage device 20, and saves the compressed file 31 obtained by the data compression in the dedicated folder 13b of the information terminal 10.

[0026] <First Operation Example of Information Terminal 10> 4 is a flowchart showing a first operation example of the information terminal 10. The processing of this flowchart is started, for example, when a button for starting this processing (for example, a processing execution button 142 described later in FIG. 7) is tapped. Alternatively, it may be started automatically, for example, when a photo or video is captured.

[0027] First, the processor 11 of the information terminal 10 copies all of the content files 30 stored in the photo / video folder 13a of the internal storage 13 to the information terminal folder 23a of the external storage device 20 (step S11).

[0028] Next, the processor 11 deletes all content files 30 stored in the photo / video folder 13a of the internal storage 13 (step S12).

[0029] Next, the processor 11 reads the content file 30 stored in the information terminal folder 23a of the external storage device 20, and compresses the read content file 30 (step S13). The processor 11 temporarily writes and saves the compressed file 31 obtained by the data compression in a tmp folder of the information terminal 10 (step S13).

[0030] Next, the processor 11 saves the compressed file 31 in the dedicated folder 13b of the internal storage 13 (step S14).

[0031] Next, the processor 11 determines whether or not the process of saving all of the target files saved in the information terminal folder 23a of the external storage device 20 to the dedicated folder 13b of the information terminal 10 has been completed (step S15).

[0032] If the processing is not completed in step S15 (step S15: No), processor 11 returns to step S13 and executes each process. If the processing is completed in step S15 (step S15: Yes), processor 11 deletes compressed file 31 in the tmp folder saved in step S13 (step S16).

[0033] In the above-described process, when the processor 11 saves the content file 30 in the information terminal folder 23a of the external storage device 20 and the compressed file 31 in the dedicated folder 13b of the information terminal 10, the processor 11 transfers the meta information of the content file 30 to the meta information of the compressed file 31. The "meta information" includes, for example, the image capture date and time of the file, the file size, etc.

[0034] In addition, the processor 11 associates the content file 30 stored in the information terminal folder 23a with the compressed file 31 stored in the dedicated folder 13b based on at least one of the file names of the content file 30 and the compressed file 31 and the meta information of the content file 30 and the compressed file 31.

[0035] In the above-described process, all target files stored in the photo / video folder 13a of the internal storage 13 are moved to the information terminal folder 23a of the external storage device 20 (steps S11 and S12), and then the process of compressing the moved target files (step S13) is performed. However, this is not a limitation. For example, the processes from steps S11 to S14 may be repeated for each target file stored in the photo / video folder 13a. In the above-described process, all compressed files in the tmp folder are deleted in step S16. However, this is not a limitation. For example, the compressed files in the tmp folder may be deleted each time each compressed file 31 is saved in the dedicated folder 13b in step S14.

[0036] As described above, the information terminal 10 saves the content file 30 saved in the photo / video folder 13a in the information terminal folder 23a of the external storage device 20, deletes the content file 30 saved in the photo / video folder 13a, compresses the content file 30 saved in the information terminal folder 23a of the external storage device 20, and saves the compressed file 31 obtained by the data compression in the dedicated folder 13b of the information terminal 10. This configuration prevents the content file 30 and the compressed file 31 from being stored simultaneously in the internal storage 13 of the information terminal 10. Therefore, file processing can be performed even if the internal storage 13 of the information terminal 10 has little free storage space. Furthermore, because the compressed file 31 obtained by compressing the content file 30 is stored in the dedicated folder 13b, the user can view previously captured photos, videos, and the like on the information terminal 10 based on the compressed file 31. This reduces the burden on the storage capacity of the information terminal 10 caused by the captured data while minimizing the reduction in convenience in viewing captured data.

[0037] Furthermore, the information terminal 10 associates the content files 30 with the compressed files 31 based on the file names, meta information, etc. Therefore, even if table information or the like for associating the content files 30 with the compressed files 31 is not created in advance, the content files 30 stored in the external storage device 20 can be associated with the compressed files 31 stored in the information terminal 10.

[0038] Furthermore, in the process of step S13 described above, the compressed file 31 obtained by data compression is stored in the tmp folder of the information terminal 10, but this is not limiting. The compressed file 31 may be stored in the tmp folder of the external storage device 20, for example. This reduces the processing in the information terminal 10, and makes it possible to execute the first operation process while minimizing strain on the storage capacity of the information terminal 10.

[0039] <Second Functional Block Diagram of Information Terminal 10 and External Storage Device 20> Fig. 5 is a second functional block diagram of the information terminal 10 and the external storage device 20. As shown in Fig. 5, the information terminal 10 includes a photo / video folder 13a and a dedicated folder 13b, similar to the first functional block diagram of Fig. 3. The external storage device 20 also includes an information terminal folder 23a.

[0040] Furthermore, the photo / video folder 13a stores content files 30 created by capturing images with the information terminal 10. The dedicated folder 13b stores compressed files 31 obtained by compressing the content files 30. The information terminal folder 23a stores content files 30 that have been saved in the information terminal 10.

[0041] In the second functional block diagram, the information terminal 10 saves the content file 30 saved in the photo / video folder 13a of the information terminal 10 in the information terminal folder 23a of the external storage device 20. Next, the information terminal 10 performs data compression on the content file 30 saved in the photo / video folder 13a, and saves the compressed file 31 obtained by the data compression in the dedicated folder 13b of the information terminal 10. Then, the information terminal 10 deletes the content file 30 saved in the photo / video folder 13a.

[0042] <Second Operation Example of Information Terminal 10> 6 is a flowchart showing a second operation example of the information terminal 10. The start timing of this process is the same as in the first operation example described above.

[0043] First, the processor 11 of the information terminal 10 copies all of the content files 30 stored in the photo / video folder 13a of the internal storage 13 to the information terminal folder 23a of the external storage device 20 (step S21).

[0044] Next, the processor 11 reads the content file 30 stored in the photo / video folder 13a of the internal storage 13 and compresses the read content file 30 (step S22). The processor 11 temporarily writes and saves the compressed file 31 obtained by the data compression in a tmp folder of the information terminal 10 (step S22). Note that the compressed file 31 may also be saved in the tmp folder of the external storage device 20, as in the first operation example described above.

[0045] Next, the processor 11 saves the compressed file 31 in the dedicated folder 13b of the internal storage 13 (step S23).

[0046] Next, the processor 11 determines whether or not the process of saving all of the target files saved in the photo / video folder 13a of the internal storage 13 to the dedicated folder 13b has been completed (step S24).

[0047] If the processing is not completed in step S24 (step S24: No), the processor 11 returns to step S22 and executes each process. If the processing is completed in step S24 (step S24: Yes), the processor 11 deletes all content files 30 stored in the photo / video folder 13a of the internal storage 13 (step S25).

[0048] Next, the processor 11 deletes the compressed file 31 stored in the tmp folder in step S22 (step S26).

[0049] In the above-described process, all target files stored in the photo / video folder 13a of the internal storage 13 are copied to the information terminal folder 23a of the external storage device 20 (step S21), and then the process proceeds to data compression of the target files (step S22). However, this is not a limitation. For example, the processes from steps S21 to S23 may be repeated for each target file stored in the photo / video folder 13a. Also, in the above-described process, the content files 30 in the photo / video folder 13a are deleted together in step S25, and the compressed files in the tmp folder are deleted together in step S26. However, this is not a limitation. For example, each time each compressed file 31 is saved in the dedicated folder 13b in step S23, the content files 30 in the photo / video folder 13a and the compressed files in the tmp folder may be deleted.

[0050] The information terminal 10 described above stores the content files 30 stored in the photo / video folder 13a in the information terminal folder 23a of the external storage device 20, compresses the content files 30 stored in the photo / video folder 13a, stores the compressed files 31 obtained by the data compression in the dedicated folder 13b of the information terminal 10, and deletes the content files 30 stored in the photo / video folder 13a. According to this configuration, by storing the content files 30 stored in the information terminal 10 in the external storage device 20 and deleting the content files 30 from the information terminal 10, it is possible to reduce the pressure on the storage capacity of the information terminal 10 caused by captured data. Furthermore, because the compressed files 31 are stored in the dedicated folder 13b of the information terminal 10, the user can check the photos, videos, etc. that he or she has captured up to that point in time by using the compressed files 31.

[0051] Furthermore, in the process of step S22 described above, the compressed file 31 obtained by data compression is saved in the tmp folder of the information terminal 10, but this is not limiting. The compressed file 31 may be saved in the tmp folder of the external storage device 20, for example. This reduces the amount of processing in the information terminal 10, and enables the second operation process to be executed with as little strain on the storage capacity of the information terminal 10 as possible.

[0052] <Processing the selected content file 30> 7 is a diagram showing an example of a viewing screen 14A for the photo / video folder 13a. The processor 11 of the information terminal 10 can execute a viewing process for viewing the content files 30 stored in the photo / video folder 13a. The viewing screen 14A for viewing the content files 30 is displayed when, for example, a viewing captured file button (not shown) displayed on the screen of the information terminal 10 is tapped.

[0053] In addition, the processor 11 can execute a process of saving each of the multiple content files 30 selected by the user from the content files 30 displayed on the viewing screen 14A to the external storage device 20, and saving the compressed file 31 obtained by compressing the content file 30 to the information terminal 10.

[0054] For example, as shown in FIG. 7 , the viewing screen 14A displays selection buttons 141a to 141f for video #1, video #2, video #3, video #4, video #5, and video #6, which indicate the content files 30 stored in the photo and video folder 13a. The viewing screen 14A also displays a process execution button 142 for executing the processes of saving the selected content files 30 to the external storage device 20 and compressing the data, saving the compressed file 31 obtained by the data compression to the information terminal 10, and deleting the selected content files 30 from the information terminal 10. On the viewing screen 14A of FIG. 7 , it is assumed that the user has selected video #1 and video #4 from among video #1 to video #6. After selecting any content file 30 in this manner, when the process execution button 142 is tapped, the processor 11 executes the processes of saving the selected video #1 and video #4 to the external storage device 20 and compressing the data, saving the compressed file 31 to the information terminal 10, and deleting the selected content files 30 from the information terminal 10, for each of the selected video #1 and video #4.

[0055] The order of the processes to be executed may be, as in the first operation example of Fig. 4, storing the selected videos #1 and #4 in the external storage device 20, then deleting the videos #1 and #4 in the information terminal 10, then compressing the data of the videos #1 and #4 stored in the external storage device 20, and storing the compressed files 31 of the videos #1 and #4 obtained by the data compression in the dedicated folder 13b of the information terminal 10. Alternatively, as in the second operation example of Fig. 6, the order may be, as in the second operation example of Fig. 6, storing the selected videos #1 and #4 in the external storage device 20, then compressing the data of the videos #1 and #4 stored in the information terminal 10, and storing the compressed files 31 of the videos #1 and #4 obtained by the data compression in the information terminal 10, and then deleting the videos #1 and #4 stored in the information terminal 10.

[0056] Furthermore, when processor 11 processes each of a plurality of content files 30 selected by the user on the viewing screen for photo / video folder 13a, processor 11 may execute the processes in an order based on the data size of content file 30. For example, processor 11 may process the selected content files 30 with the smaller data size first. Note that the method of processing content files 30 in an order based on data size may be applied to, for example, the second operation example described in FIG. 6.

[0057] According to this configuration, by processing the content files 30 with smaller data sizes first, the content files 30 can be processed efficiently even when the free storage capacity of the photo / video folder 13a in the information terminal 10 is low.

[0058] <Restore selected compressed file 31> 8 is a diagram showing an example of a viewing screen 14B for the dedicated folder 13b. The processor 11 of the information terminal 10 can execute a viewing process for viewing the compressed file 31 stored in the dedicated folder 13b. The viewing screen 14B for viewing the compressed file 31 is displayed when, for example, a compressed file viewing button (not shown) displayed on the screen of the information terminal 10 is tapped.

[0059] The processor 11 can also execute a restoration process to restore the content file 30 based on the compressed file 31. For example, when the processor 11 receives a restoration operation from a user specifying the compressed file 31 stored in the dedicated folder 13b, the processor 11 reads and receives the content file 30 corresponding to the specified compressed file 31 from the external storage device 20, and stores the received content file 30 (the original file of the compressed file) in the information terminal 10. This allows the content file that was deleted from the information terminal 10 to be restored to the information terminal 10 and can be referenced again.

[0060] The processor 11 saves the content file 30 that the information terminal 10 receives from the external storage device 20 during restoration in, for example, the photo and video folder 13a. In this case, the "control program" may be configured to manage only the compressed file. However, the processor 11 may also save the received content file 30 in a dedicated folder 13b. The content file 30 corresponding to the specified compressed file 31 is read from the external storage device 20 based on the association between the content file 30 and the compressed file 31, which is based on the file name, meta information, etc. After restoring the content file 30, the processor 11 deletes the specified compressed file 31 from the dedicated folder 13b. Note that the compressed file 31 does not need to be deleted. Alternatively, the user may be able to select whether to delete the file.

[0061] For example, as shown in FIG. 8, the viewing screen 14B displays a selection button 143a for selecting video #1 (compressed), which is a compressed file 31 stored in the dedicated folder 13b, and a selection button 143b for selecting video #4 (compressed). The viewing screen 14B also displays a restore execution button 144 for executing a process of restoring the content file 30 corresponding to the selected compressed file 31 from the external storage device 20. On the viewing screen 14B of FIG. 8, it is assumed that the user selects video #1 (compressed) from among video #1 (compressed) and video #4 (compressed). After an arbitrary compressed file 31 is selected in this manner, when the restore execution button 144 is tapped, the processor 11 executes a restoration process of reading the corresponding content file 30 for the selected video #1 (compressed) from the external storage device 20 and saving the read content file 30 in the internal storage 13 of the information terminal 10.

[0062] In the above-described embodiment, the compressed file 31 is configured to be stored in the dedicated folder 13b, but it may also be configured to be stored in the photo / video folder 13a. By storing the compressed file 31 in the photo / video folder 13a, the user can easily view the compressed file 31 in the photo / video folder 13a in the same way as before the compression process. Furthermore, because the compressed file 31 retains the metadata, it is possible to view the photos and videos in the same order as before compression. In this case, the compressed file 31 may be configured to be stored only in the photo / video folder 13a, or may be configured to be stored in both the photo / video folder 13a and the dedicated folder 13b. If the compressed file 31 is configured to be stored only in the photo / video folder 13a, it may also be configured to display only the compressed file on the viewing screen 14B of the dedicated folder 13b during the restoration process.

[0063] (Regarding the control program) The communication method of the communication system and the control method of the information terminal described in the above-described embodiments can be realized by executing a prepared control program on a computer. The control program is recorded on a computer-readable storage medium and executed by being read from the storage medium. The control program may be provided in a form stored on a non-transitory storage medium such as a flash memory, or may be provided via a network such as the Internet. The computer that executes the control program may be included in the communication system and the information terminal, or may be included in an electronic device such as a smartphone, tablet, or personal computer that can communicate with the communication system and the information terminal, or may be included in a server device that can communicate with these communication systems, information terminals, and electronic devices.

[0064] As described above, the present specification discloses the following:

[0065] The disclosed control program causes the processor to execute a process of transferring meta information of the content file to meta information of the compressed file.

[0066] The disclosed control program causes the processor to execute a process of associating the content file stored in the storage with the compressed file stored in the information terminal based on at least one of the file names of the content file and the compressed file, and the meta information of the content file and the compressed file.

[0067] In the disclosed control program, the content file is image data obtained by the information terminal through imaging.

[0068] The disclosed control program causes the processor to execute the following processes for each of a plurality of content files stored on the information terminal and selected by the user: store the content file in the storage; compress the data of the content file; store the compressed file obtained by the data compression on the information terminal; and delete the content file stored on the information terminal.

[0069] The disclosed control program causes the processor to execute the following process: for each of the plurality of content files, store the content file in the storage in an order based on the data size of the plurality of content files; compress the data of the content file; store the compressed file obtained by the data compression in the information terminal; and delete the content file stored in the information terminal.

[0070] The disclosed control program causes the processor, upon receiving a user instruction to restore the compressed file, to read the content file corresponding to the compressed file from the storage and store it in the information terminal.

[0071] The disclosed control program causes the processor to execute a process in which the content file is stored in a first folder of the information terminal and the compressed file is stored in the first folder.

[0072] The disclosed control program stores the content file in a first folder of the information terminal, and causes the processor to store the compressed file in a second folder different from the first folder.

[0073] The disclosed control program is one in which the information terminal is a portable information terminal.

[0074] The disclosed information terminal is an information terminal that can be connected to a storage, and is equipped with a processor that saves content files stored on the information terminal in the storage, performs data compression on the content files, stores the compressed files obtained by the data compression on the information terminal, and deletes the content files stored on the information terminal. [Explanation of symbols]

[0075] 1. Communication Systems 10 Information terminals 11 processors 12. Main memory 13. Internal Storage 13a Photo / Video Folder 13b dedicated folder 14 User Interface 14A, 14B Viewing screen 15 Wireless communication I / F 16 Wired communication I / F 20 External storage devices 23. Storage 23a Information terminal folder 30 content files 31 Compressed Files 141a~141f selection buttons 142 Process execution button 144 Restore execution button

Claims

1. A control program for an information terminal connectable to a storage, A processor of the information terminal storing the content file stored in the information terminal in the storage; performing data compression on the content file; storing the compressed file obtained by the data compression in the information terminal; deleting the content file stored in the information terminal; A control program that executes processing.

2. 2. The control program according to claim 1, the processor, storing the content file in the storage, deleting the content file stored in the information terminal, and then performing the data compression of the content file stored in the storage. A control program that executes processing.

3. 2. The control program according to claim 1, the processor, and storing, in the information terminal, the compressed file obtained by the data compression of the content file stored in the information terminal, and then deleting the content file stored in the information terminal. A control program that executes processing.

4. 4. The control program according to claim 3, the processor, writing the compressed file obtained by the data compression to a temporary folder in the storage; After storing the compressed file written into the temporary folder in the information terminal, the compressed file in the temporary folder is deleted. A control program that executes processing.

5. 2. The control program according to claim 1, the processor, The meta information of the content file is inherited by the meta information of the compressed file. A control program that executes processing.

6. 2. The control program according to claim 1, the processor, The content file stored in the storage is associated with the compressed file stored in the information terminal based on at least one of file names of the content file and the compressed file and meta information of the content file and the compressed file. A control program that executes processing.

7. 2. The control program according to claim 1, The content file is imaging data obtained by imaging the information terminal. Control program.

8. 2. The control program according to claim 1, the processor, For each of a plurality of content files stored in the information terminal and selected by the user, storing the content file in the storage; performing data compression on the content file; storing the compressed file obtained by the data compression in the information terminal; deleting the content file stored in the information terminal; A control program that executes processing.

9. 9. The control program according to claim 8, the processor, For each of the plurality of content files, in an order based on the data size of the plurality of content files, storing the content file in the storage; performing data compression on the content file; storing the compressed file obtained by the data compression in the information terminal; deleting the content file stored in the information terminal; A control program that executes processing.

10. 2. The control program according to claim 1, the processor, When a restoration instruction based on the compressed file is received from a user, reading the content file corresponding to the compressed file from the storage and storing it in the information terminal; Control program.

11. 2. The control program according to claim 1, the content file is stored in a first folder of the information terminal, the processor, storing the compressed file in the first folder; A control program that executes processing.

12. 2. The control program according to claim 1, the content file is stored in a first folder of the information terminal, the processor, storing the compressed file in a second folder different from the first folder; Control program.

13. 13. The control program according to claim 1, The information terminal is a portable information terminal. Control program.

14. An information terminal connectable to a storage, storing the content file stored in the information terminal in the storage; performing data compression on the content file; storing the compressed file obtained by the data compression in the information terminal; deleting the content file stored in the information terminal; An information terminal equipped with a processor.

Images