JP4370682B2 - Data file management recording medium and data file management device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a recording medium storing a data file management program for managing information data such as image files, and a data file management apparatus for managing information data.
[0002]
[Prior art]
For example, information data recorded on a recording medium such as a CF (compact flash) card by an electronic camera includes information data containing captured image data. This information data is transmitted to a personal computer on which a predetermined application program is executed, and written in a data recording device on the personal computer side. Then, by executing a predetermined application program of the personal computer, the image data written in the data recording device is read out. The read image data is displayed on a display device such as a display device connected to the personal computer or printed on an output device connected to the personal computer.
[0003]
In the above-described application program that handles information data, file management processing that records information data received from a recording medium in a data recording device on the personal computer side or deletes information data recorded in the data recording device on the personal computer side And display processing for reading information data recorded in the data recording device on the personal computer side and outputting an image based on the information data to a display device such as a display device. For example, in the case where an image based on information data recorded in the data recording device is displayed on the display device using an application program, for example, when the information data is added to the data recording device, the added information When the display of the image by the data is added and the information data is deleted from the data recording device, the display of the image by the deleted information data is stopped.
[0004]
[Problems to be solved by the invention]
The application program creates and manages a file list of information data recorded in the data recording device, collates the file list with the information data recorded in the data recording device, and stores the information data in the data recording device. Detect that it has been added or deleted. However, if the number of information data recorded in the data recording device becomes very large, it takes time to manage the file list and it takes time to collate all information data, and information data is added or deleted. There was a problem that there was a time lag from when it was reflected to the verification result.
[0005]
An object of the present invention is to provide a recording medium storing a data file management program that can easily detect addition and deletion of an information data file.
It is another object of the present invention to provide a data file management apparatus that can easily detect addition and deletion of information data files.
[0006]
[Means for Solving the Problems]
(1) According to the first aspect of the present invention, there is provided a recording process for recording an information data file on a recording medium, and a specifying data file having information assigned with respect to the information data file recorded by the recording process. Identification file recording process for recording on a recording medium, identification file reading process for reading the identification data file from the recording medium, and identification for identifying the information data file from the identification data file read by the identification file reading process Data file management recording medium storing a program for performing processing and a specific file deletion process for deleting a specific data file recorded on the recording mediumThe specifying file recording process is performed immediately after the recording process is completed, and the specifying file deletion process is performed immediately after the specifying process is completed.It is characterized by that.
(2) The invention described in claim 2A specification file recording process for creating a specification data file having information assigned to the information data file to be deleted from the recording medium and recording the information data file on the recording medium, a deletion process for deleting the information data file from the recording medium, and a specification A specific file reading process for reading a data file from a recording medium, a specific process for specifying an information data file from a specific data file read by the specific file reading process, and a specific data file recorded on the recording medium Is a data file management recording medium that stores a program for performing a specific file deletion process, and the specific file recording process is performed before the deletion process is started. , Immediately after the specific process is completedIt is characterized by that.
(3)Claim 3The data file management device according to the invention described in claim 1 is a recording means for recording an information data file on a recording medium, and a recording data medium by creating a specifying data file having information assigned to the information data file recorded by the recording means A specifying file recording means for recording, a specifying file reading means for reading the specifying data file from the recording medium, a specifying means for specifying the information data file from the specifying data file read by the specifying file reading means, Specific file deletion means for deleting the specific data file recorded on the recording mediumThe specifying file recording means records the specifying data file on the recording medium immediately after the recording means finishes recording the information data file on the recording medium, and the specifying file deleting means The specification data file is deleted immediately after the specification of the information data file from the file is completed.
(4)Claim 4The data file management device according to the invention described in the above is a specification file recording means for creating a specification data file having information assigned to an information data file to be deleted from the recording medium and recording the information data file on the recording medium, and an information data file Deleting means for deleting from the recording medium, specifying file reading means for reading the specifying data file from the recording medium, specifying means for specifying the information data file from the specifying data file read by the specifying file reading means, Specific file deletion means for deleting a specific data file recorded on a recording mediumThe specifying file recording means records the specifying data file on the recording medium before the specifying file deleting means starts deleting the specifying data file, and the specifying file deleting means The specification data file is deleted immediately after the specification of the information data file from the file is completed.
[0007]
In the section of means for solving the above problems, the present invention is associated with the drawings of the embodiments for easy understanding. However, the present invention is not limited to the embodiments.
[0008]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described below with reference to the drawings.
FIG. 1 is a diagram showing an outline of an image data file display device provided with a data file management device according to an embodiment of the present invention. In FIG. 1, an image data file display device includes an electronic still camera 1 and a personal computer (PC) 2 connected by an IEEE-1394 cable 3. The electronic still camera 1 includes an MPU 11, a CF card 12, and an interface circuit 13. The electronic still camera 1 records captured image data on the CF card 12 in a predetermined format. The electronic still camera 1 passes the captured image data to the personal computer 2 via the interface circuit 13 and the IEEE-1394 cable 3. The operation of the electronic still camera 1 is controlled by the MPU 11.
[0009]
The personal computer 2 includes an MPU 21, a recording device 22, an interface circuit 23, a display circuit 24, and a display device 25. Image data passed from the electronic still camera 1 is taken into the personal computer 2 via the IEEE-1394 cable 3 and the interface circuit 23. The image data taken into the personal computer 2 is recorded in a predetermined recording area in the recording device 22. The image data recorded in the recording device 22 is read from the recording device 22, converted into a video signal by the display circuit 24, and displayed on the display device 25 connected to the personal computer 2 via the video signal cable 26. The The operation of the personal computer 2 is controlled by the MPU 21.
[0010]
The image data captured from the electronic still camera 1 to the personal computer 2 is displayed on the display device 25, printed on an output device (not shown) connected to the personal computer 2, and can be exchanged with the personal computer 2. Or sent to another computer device (not shown).
[0011]
In the personal computer 2, an application program having an image file processing module and an image display processing module is executed. The image file processing module is a program module that receives an image data file recorded on the CF card 12 of the electronic still camera 1 by the personal computer 2 and records the received image data file in a predetermined area of the recording device 22 of the personal computer 2. . The image display processing module is a program module that reads an image data file recorded in a predetermined area of the recording device 22 and displays a reproduced image based on the image data on the display device 25 connected to the personal computer 2. These program modules are processed in parallel when an application program is executed. Therefore, the process in which the image file processing module records the image data file in the predetermined area of the recording device 22 and the process in which the image display processing module reads and displays the image data file from the predetermined area of the recording device 22 are performed asynchronously. Therefore, even if a new image data file is added to the recording device 22, it takes time to specify the new file and cannot be immediately reflected on the display of the display device 25.
[0012]
The recording area of the recording device 22 is divided into a plurality of folders for easy management of image data files. A folder is also called a directory and is a name indicating a recording location of a data file in a recording area of the recording device 22. The image data files are classified into, for example, image data files by the same photographer, and the classified image data files are recorded in folders assigned with the names of the photographers. In the image data display device according to the embodiment of the present invention, a folder for recording an image data file in the recording device 22 and a specific folder different from the folder for recording the image data file are provided, and management is provided in the specific folder. A file is created and the addition of the image data file to the recording device 22 or the deletion of the image data file recorded in the recording device 22 is managed.
[0013]
-Addition of image data file-
FIG. 2 is a diagram for explaining the flow of image capture processing. When an image data file is added to an arbitrary folder 221, it is performed as follows. In FIG. 2, an arbitrary folder 221 is a folder provided for classifying and recording image data files. Here, for easy understanding, only one folder for recording image data is shown. Image data files A1 to A4 are recorded in an arbitrary folder 221. The image data files A1 to A3 are files already recorded in the folder 221 and the image data file A4 is a file newly added to the folder 221.
[0014]
On the other hand, the specific folder 222 is a folder provided for creating a management file. In the specific folder 222, a management file B4 is recorded. In the management file B4, information indicating which image data file is newly added to an arbitrary folder 221 is recorded. In the example of FIG. 2, the file name of the image data file A4 is recorded in the management file B4. The management file B4 does not include image data, and minimum information for specifying the image data file A4 is registered.
[0015]
In FIG. 2, the processing from step S101 to step S103 is performed by the image file processing module of the application program. In step S <b> 101, the personal computer 2 receives an image data file from the electronic still camera 1. In step S102, the file name “A4” is assigned to the image data file received by the MPU 21 and recorded in the folder 221. In step S103, the management file in which the file name “A4” of the image data file A4 recorded in the folder 221 by the MPU 21 is created, is given the file name “B4”, and is recorded in the specific folder 222.
[0016]
The processing from step S104 to step S106 is performed by the image display processing module of the application program. In step S <b> 104, the MPU 21 checks whether a file is recorded in the specific folder 222. When a file is recorded in the specific folder 222, the recorded management file (management file B4 in the example of FIG. 2) is read, and the file name of the image data file recorded in the folder 221 is “ A4 "is specified. In step S105, the MPU 21 reads the image data file A4 from the folder 221. In step S106, the MPU 21 deletes the management file B4 recorded in the specific folder 222 and ends the image data file addition process. Thereafter, the MPU 21 displays an image based on the read image data file A4 on the display device 25.
[0017]
When an application program is programmed to display all thumbnails of images based on image data files recorded in the folder 221, thumbnail images as shown in FIG. 3 are displayed on the display device 25. FIG. 3 is a diagram illustrating a display example when images based on the image data files A1 to A4 recorded in the folder 221 are displayed on the display device 25. In FIG. 3, diagonal lines indicate that an image based on image data is not displayed.
[0018]
On the other hand, in step S104 described above, when no file is recorded in the specific folder 222, the MPU 21 continues to display an image based on the image data files A1 to A3 read last time. That is, if the management file B4 is not recorded in the specific folder 222, the image data file A4 recorded in the folder 221 cannot be specified and read. Accordingly, the display device 25 continues to display the images by the already read image data files A1 to A3.
[0019]
-Deletion of image data file-
The deletion of the image data file A4 recorded in the arbitrary folder 221 is performed as follows. FIG. 4 is a diagram for explaining the flow of image deletion processing. In FIG. 4, an arbitrary folder 221 is a folder in which image data files are recorded. As in the case of recording the image data file, only one folder for recording the image data is shown. Image data files A1 to A3 are recorded in an arbitrary folder 221. The image data file A4 is a file newly deleted from the folder 221.
[0020]
As described above, the specific folder 222 is a folder provided for creating a management file. In the specific folder 222, a management file C4 is recorded. In the management file C4, information indicating which image data file is newly deleted from an arbitrary folder 221 is recorded. In the example of FIG. 4, the file name of the image data file A4 is recorded in the management file C4. The management file C4 does not include image data, and minimum information for specifying the image data file A4 is registered.
[0021]
In FIG. 4, the processing from step S201 to step S202 is performed by the image file processing module of the application program. In step S201, the MPU 21 of the personal computer 2 creates a management file in which the file name “A4” of the image data file A4 to be deleted from the folder 221 is created, and the file name “C4” is assigned and recorded in the specific folder 222. To do. In step S202, the MPU 21 deletes the image data file A4 recorded in the arbitrary folder 221.
[0022]
The processing from step S203 to step S205 is performed by the image display processing module of the application program. In step S <b> 203, the MPU 21 checks whether a file is recorded in the specific folder 222. If a file is recorded in the specific folder 222, the recorded management file (management file C4 in the example of FIG. 4) is read, and the process proceeds to step S204. In step S204, the MPU 21 specifies that the file name of the image data file deleted from the folder 221 is “A4”. In step S205, the MPU 21 deletes the management file C4 stored in the specific folder 222, and ends the image data file deletion process.
[0023]
As shown in FIG. 3 described above, when the application program is programmed to display all thumbnails of images based on the image data file recorded in the folder 221, the image is displayed based on the deleted image data file A4. Canceled. That is, as shown in FIG. 5, images by the image data files A1 to A3 recorded in the folder 221 are displayed on the display device 25.
[0024]
On the other hand, in step S203 described above, if no file is recorded in the specific folder 222, the MPU 21 continues displaying images based on the image data files A1 to A4 read in the previous time. That is, unless the management file C4 is recorded in the specific folder 222, it cannot be specified that the image data file A4 recorded in the folder 221 has been deleted. Therefore, the image of FIG. 3 is continuously displayed on the display device 25 by the previously read image data files A1 to A4.
[0025]
According to the image data file display device of the present embodiment described above, the following operational effects can be obtained.
(1) When the image data file A4 is additionally recorded in the folder 221 in the recording device 22 of the personal computer 2, the image data file A4 is recorded in the folder 221 (step S102), and the file name of the image data file A4 is recorded. The management file B4 is recorded in the specific folder 222 as a primary file (step S103). The management file B4 is deleted when the added image data file A4 is specified (S106). Therefore, the MPU 21 can detect that the management file B4 has been generated in the specific folder 222 and detect that the image data file A4 has been added to the arbitrary folder 221. As a result, the processing time of the MPU 21 can be reduced compared with the case where the MPU 21 compares all image data files recorded in an arbitrary folder 221 with the file list and confirms which image data file is newly added. It can be greatly shortened. In particular, when the number of image data files recorded in the folder 221 is very large, it takes a long time to check all the image data files, so that a great effect can be obtained. Further, since the management file B4 is generated in the folder 222 after the image data file A4 is recorded in the folder 221, the MPU 21 is prevented from accessing the image data file A4 being recorded in the folder 221. Can do.
[0026]
(2) When deleting the image data file A4 recorded in the arbitrary folder 221 in the recording device 22 of the personal computer 2, the management file C4 in which the file name of the image data file A4 is recorded is designated as a primary file. The image data file A4 is deleted from the folder 221 (step S202). The management file C4 is deleted when the deleted image data file A4 is specified (S205). Accordingly, the MPU 21 can detect that the management file C4 has been generated in the specific folder 222 and detect that the image data file A4 has been deleted from the arbitrary folder 221. As a result, the processing time of the MPU 21 is greatly increased compared to the case where the MPU 21 compares all image data files recorded in an arbitrary folder 221 with the file list and confirms which image data file has been deleted. Can be shortened. In particular, when the number of image data files recorded in the folder 221 is very large, it takes a long time to check all the image data files, so that a great effect can be obtained. Further, since the image data file A4 is deleted from the folder 221 after the management file C4 is generated in the folder 222, the MPU 21 is prevented from accessing the image data file A4 being deleted from the folder 221. Can do.
[0027]
In the above description, by adding the added image data file name “A4” and the deleted image data file name “A4” to the management file B4 and the management file C4, the management file and the image data are recorded. Associate with file. Instead, the file name of the management file B4 may be associated with the image data file A4 to be added, the file name of the management file C4, and the file name of the image data file A4 to be deleted. . In this case, the relationship between the specific folder 222 and the arbitrary folder 221 is 1: 1.
[0028]
The file names of the management file B4 and the management file C4 may be given by adding the path information of the image data file A4 to the image data file name “A4” to be added and deleted. In this case, the relationship between the specific folder 222 and the arbitrary folder 221 is one-to-many.
[0029]
Furthermore, in the above description, the added image data file name “A4” and the deleted image data file name “A4” are registered for the management file B4 and the management file C4. Both the data file name “A4” and the path information of the image data file A4 may be registered in each of the management file B4 and the management file C4. According to the present embodiment described above, the relationship between the specific folder 222 and the arbitrary folder 221 is 1: 1, but the file name “A4” and the path information are added to the management file B4 and the management file C4. If registered, the relationship between the specific folder 222 and the arbitrary folder 221 becomes one-to-many.
[0030]
In the above description, an example in which an electronic still camera 1 and a personal computer (PC) 2 are connected by an IEEE-1394 cable 3 as an image data file display device has been described. In addition, the electronic still camera 1 and the personal computer (PC) 2 may be connected using another network cable or an interface device that transmits and receives wirelessly.
[0031]
Further, instead of connecting the electronic still camera 1 and the personal computer 2, a CF card reader is provided so that the personal computer 2 can directly read the data recorded from the CF card 12 on which the image data is recorded by the electronic still camera 1. May be provided in the personal computer 2 or a CF card reader may be directly connected to the personal computer 2.
[0032]
Furthermore, the display device for the image data file may be configured by connecting a personal computer and a personal computer, a recording medium and a personal computer to each other, or may be configured by housing them in one casing. In the case of a recording medium, for example, when a CF card is connected to a personal computer or the like, it is connected via an adapter that converts the CF card reader or the interface of the CF card into another interface such as USB, Bluetooth, or IrDA. In any case, the present invention is applied to a case where a large number of data having a large file size such as image data is transferred and recorded between electronic devices regardless of wired connection or wireless connection. can do.
[0033]
In the above-described embodiment, the image data file display device including the file management device has been described. However, the above-described image data file display processing (image file import / deletion processing and image display processing) is in the form of software. When the file management program is stored as a file management program on a recording medium such as a CD-ROM or floppy disk, and the file management program is read by a personal computer, the image data file recorded by the electronic camera is displayed on the personal computer. Can also be used.
[0034]
Instead of reading the program from a recording medium on which the above-described image data file management program is recorded by a personal computer, the above-described image data file management program may be transmitted using a transmission medium such as the Internet. In this case, after the transmitted program is read by a personal computer, the above-described image data file take-in / delete processing and display processing are performed by the personal computer.
[0035]
The correspondence between each component in the claims and each component in the embodiment will be described. The image data file A4 is an information data file, the recording device 22 is a recording medium, and the management files B4 and C4. Corresponds to a data file for specification, and the MPU 21 corresponds to a recording means, a specification file recording means, a specification file reading means, a specification means, a specification file deletion means, and a deletion means.
[0036]
【The invention's effect】
  As described above in detail, the present invention has the following effects.
(1)Claims 1 and 3In the invention described in the above, a data file for identification to which information related to the information data file recorded on the recording medium is recorded is recorded on the recording medium, and the recorded information data file is identified by reading the recorded data file for identification. I tried to do it. Therefore, for example, when a new information data file is recorded on a recording medium on which a very large number of information data files are recorded, the very large number of information data files recorded on the recording medium are not checked against the file list. However, the newly recorded information data file can be specified simply by reading the specifying data file. As a result, it is possible to reduce the time required for identification.
(2) Especially,Claims 1 and 3In the invention described inRecordSince the specifying data file is recorded after the recording of the information data file on the recording medium is completed, the information data file being recorded on the recording medium is not specified, and access to the information data file being recorded is prevented. . Further, since the specifying data file is deleted after the information data file recorded on the recording medium is specified, it is possible to prevent the information data file specified once from being specified twice.
(3Claims 2 and 4In the invention described in the above, a data file for identification to which information related to the information data file deleted from the recording medium is recorded is recorded on the recording medium, and the deleted information data file is identified by reading the recorded data file for identification I tried to do it. Therefore, for example, when an information data file is deleted from a recording medium on which an extremely large number of information data files are recorded, the very large number of information data files recorded on the recording medium need not be checked against the file list. The deleted information data file can be specified simply by reading the specifying data file. As a result, it is possible to reduce the time required for identification.
(4) Especially,Claims 2, 4In the invention described inRecordSince the data file for identification is recorded before the deletion of the information data file from the recording medium, the information data file can be identified before it is deleted from the recording medium, preventing access to the information data file being deleted Is done. In addition, since the specifying data file is deleted after the information data file deleted from the recording medium is specified, the information data file specified once is prevented from being specified twice.
[Brief description of the drawings]
FIG. 1 is a diagram showing an outline of a display device for an image data file according to the present embodiment.
FIG. 2 is a diagram for explaining a flow of image capturing processing;
FIG. 3 is a diagram illustrating a display example in which images by image data files A1 to A4 recorded in an arbitrary folder are displayed on a display device.
FIG. 4 is a diagram illustrating a flow of image deletion processing.
FIG. 5 is a diagram illustrating a display example in which images by image data files A1 to A3 recorded in an arbitrary folder are displayed on a display device.
[Explanation of symbols]
1 ... electronic still camera, 2 ... computer,
3 ... Cable, 11,21 ... MPU,
12 ... CF card 13,23 ... Interface circuit,
22 ... Recording device, 25 ... Display device,
221 ... Arbitrary folder 222, Specific folder,
A1 to A4: image data file, B4: management file for recording,
C4 ... Management file at the time of deletion

Claims (4)

A recording process for recording the information data file on a recording medium;
A specification file recording process for creating a specification data file having information assigned to the information data file recorded by the recording process and recording the file on the recording medium;
A specification file reading process for reading the specification data file from the recording medium;
A specifying process for specifying the information data file from the specifying data file read by the specifying file reading process;
A data file management recording medium storing a program for performing a specification file deletion process for deleting the specification data file recorded in the recording medium ,
The data file management recording medium, wherein the specifying file recording process is performed immediately after the recording process is completed, and the specifying file deletion process is performed immediately after the specifying process is completed . A specification file recording process for creating a specification data file having information assigned to the information data file to be deleted from the recording medium and recording the specified data file on the recording medium;
A deletion process for deleting the information data file from the recording medium;
A specification file reading process for reading the specification data file from the recording medium;
A specifying process for specifying the information data file from the specifying data file read by the specifying file reading process;
A data file management recording medium storing a program for performing a specification file deletion process for deleting the specification data file recorded in the recording medium,
The data file management recording medium, wherein the specifying file recording process is performed before starting the deleting process, and the specifying file deleting process is performed immediately after the specifying process is completed . Recording means for recording the information data file on a recording medium;
  A specification file recording means for creating a specification data file having information given with respect to the information data file recorded by the recording means and recording it on the recording medium;
  A specification file reading means for reading the specification data file from the recording medium;
  Specifying means for specifying the information data file from the specifying data file read by the specifying file reading means;
  A specifying file deleting means for deleting the specifying data file recorded on the recording medium,
  The specifying file recording unit records the specifying data file on the recording medium immediately after the recording unit finishes recording the information data file on the recording medium,
  The data file management device, wherein the specifying file deleting unit deletes the specifying data file immediately after the specifying unit finishes specifying the information data file from the specifying data file. A specifying file recording means for creating a specifying data file having information assigned to the information data file to be deleted from the recording medium and recording the specified data file on the recording medium;
  Deleting means for deleting the information data file from the recording medium;
  A specification file reading means for reading the specification data file from the recording medium;
  Specifying means for specifying the information data file from the specifying data file read by the specifying file reading means;
  A specifying file deleting means for deleting the specifying data file recorded on the recording medium,
  The specifying file recording unit records the specifying data file on the recording medium before the specifying file deleting unit starts to delete the specifying data file,
  The data file management device, wherein the specifying file deleting unit deletes the specifying data file immediately after the specifying unit finishes specifying the information data file from the specifying data file.

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