JP2001320664A - Recording medium for data file management and data file management device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a data file management device that can easily detect addition/deletion of a data file. SOLUTION: An MPU 21 (Figure 1, not shown) records an image data file A4 to an optional folder 221 and a management file B4 recording a file name of the image data file A4 to a specific folder 222. The MPU 21 reads the management file B4 to specify addition of the image data file A4. When the image data file A4 is specified, the management file B4 is deleted. The MPU 21 (Figure 1, not shown) records a management file C4 (Figure 4, not shown) to the specific folder 222 (Figure 4, not shown) and deletes the image data file A4 (Figure 4, not shown) from the folder 221 (Figure 4, not shown). The MPU 21 (Figure 1, not shown) reads the management file C4 (Figure 4, not shown) to specify deletion of the image data file A4 (Figure 4, not shown). When the image data file A4 (Figure 4, not shown) is specified, the management file C4 (Figure 4, not shown) is deleted.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

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 device for managing information data.

[0002]

2. Description of the Related Art For example, information data recorded on a recording medium such as a CF (Compact Flash (registered trademark)) card by an electronic camera includes information data containing photographed image data. This information data is transmitted to a personal computer on which a predetermined application program is executed,
The data is written to the data recording device on the personal computer. And
By executing a predetermined application program of the personal computer, the image data written in the data recording device is read. 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 for handling information data, the information data received from the recording medium is recorded in the data recording device of the personal computer, or the information data recorded in the data recording device of the personal computer is deleted. A file management process and a display process of reading information data recorded in a 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 are performed. For example, when an image based on information data recorded on a data recording device is displayed on a display device by using an application program as an example, when information data is added to the data recording device, the added information is displayed. 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]

In an application program, a file list of information data recorded in a data recording device is created and managed, and the file list is compared with the information data recorded in the data recording device. Thus, it is detected that information data has been added or deleted from the data recording device. However, when the number of pieces of information data recorded in the data recording device becomes very large, it takes time and effort to manage the file list, and it takes time to check all information data, and information data is added or deleted. There is a problem that a time lag occurs from the time when it is reflected in the collation result.

[0005] It is an object of the present invention to provide a recording medium storing a data file management program for easily detecting addition and deletion of an information data file. It is another object of the present invention to provide a data file management device capable of easily detecting addition and deletion of an information data file.

[0006]

The present invention will be described with reference to FIGS. 2, 4 and 1 showing one embodiment. (1) A recording medium for data file management according to the first aspect of the present invention has a recording process of recording an information data file A4 on a recording medium, and information given to the information data file A4 recorded by the recording process. A specification file recording process for creating the specification data file B4 and recording it on the recording medium, a specification file reading process for reading the specification data file B4 from the recording medium, and a specification file read by the specification file reading process A program for performing a specific process of specifying the information data file A4 from the data file B4 and a specific file deletion process of deleting the specific data file B4 recorded on the recording medium is stored, and by executing this program, ,
Achieve the above objectives. (2) According to a second aspect of the present invention, in the data file management recording medium according to the first aspect, the specifying file recording process is performed immediately after the recording process is completed, and the specifying file deletion process is performed. It is characterized in that it is performed immediately after the specific processing is completed. (3) The recording medium for data file management according to the third aspect of the present invention is a recording medium for creating a specifying data file C4 having information given to an information data file A4 to be deleted from the recording medium and recording the data file C4 on the recording medium. File recording process, a deletion process of deleting the information data file A4 from the recording medium, a specification file reading process of reading the specification data file C4 from the recording medium, and the specification data read by the specification file reading process. A specifying process of specifying the information data file A4 from the file C4, and a specifying data file C recorded on the recording medium;
The above-described object is achieved by storing a program for performing a file deletion process for specifying 4 that deletes the file 4 and executing the program. (4) According to a fourth aspect of the present invention, in the data file management recording medium according to the third aspect, the specifying file recording process is performed before starting the deleting process, It is characterized in that it is performed immediately after the specific processing is completed. (5) A data file management device according to a fifth aspect of the present invention is a data file management device, comprising: a recording unit for recording an information data file on a recording medium; and a specification having information given to the information data file recorded by the recording unit. Specification file recording means 21 for creating a specification data file and recording the recording data on a recording medium 22; specification file reading means 21 for reading the specification data file from the recording medium 22;
The information processing apparatus includes a specification unit for specifying an information data file from the specification data file read by the specification file reading unit, and a specification file deletion unit for deleting the specification data file recorded on the recording medium. Thereby, the above-mentioned object is achieved. (6) A data file management device according to the invention described in claim 6, wherein a specification file for creating a specification data file having information assigned to an information data file to be deleted from the recording medium 22 and recording the data file on the recording medium 22 Recording means 21; deleting means 21 for deleting the information data file from the recording medium 22; specifying file reading means 21 for reading the specifying data file from the recording medium 22; The above-described object is achieved by providing the identification unit 21 for identifying the information data file from the identification data file and the identification file deletion unit 21 for deleting the identification data file recorded on the recording medium 22.

In the section of the means for solving the above-mentioned problems, the present invention is associated with the drawings of the embodiments for easy understanding of the present invention, but the present invention is not limited to the embodiments. is not.

[0008]

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 and
It has a CF card 12 and an interface circuit 13. The electronic still camera 1 records photographed image data on the CF card 12 in a predetermined format. Further, the electronic still camera 1 includes an interface circuit 13 and an IEEE-139.
4 The photographed image data is transferred to the personal computer 2 via the cable 3. The operation of the electronic still camera 1 is controlled by the MPU 11.

The personal computer 2 includes an MPU 21 and a recording device 2
2, an interface circuit 23, a display circuit 24,
And a display device 25. Electronic still camera 1
Is transferred to 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. Recording device 22
The image data recorded therein 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. The operation of the personal computer 2 is M
It is controlled by the PU 21.

Image data taken into the personal computer 2 from the electronic still camera 1 is displayed on the display device 25, printed by an output device (not shown) connected to the personal computer 2, and exchanged with the personal computer 2. It may be sent to another computer device (not shown) that is enabled.

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 includes the CF card 12 of the electronic still camera 1
Is a program module for receiving the image data file recorded in the PC 2 by the personal computer 2 and recording 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 a 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 the image data file from the predetermined region in the recording device 22 and display the same 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, so that it cannot be immediately reflected on the display of the display device 25.

The recording area of the recording device 22 is divided into a plurality of folders to make it easier to manage image data files. The 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 file is, for example,
The image data files are classified into image data files of the same photographer, and the classified image data files are respectively recorded in folders to which the names of the photographers are added. In the image data display device according to the embodiment of the present invention, a folder for recording the image data file and a specific folder different from the folder for recording the image data file are provided in the recording device 22, and the management folder is provided in the specific folder. A file is created to manage adding an image data file to the recording device 22 or deleting an image data file recorded in the recording device 22.

-Addition of Image Data File- FIG. 2 is a diagram for explaining the flow of an image capturing process. When an image data file is added to an arbitrary folder 221, the following is performed. In FIG. 2, an arbitrary folder 221 is a folder provided for classifying and recording image data files. Here, only one folder for recording image data is shown for easy understanding. In an arbitrary folder 221, image data files A1 to A4 are recorded.
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.

On the other hand, the specific folder 222 is a folder provided for creating a management file. In a specific folder 222, a management file B4 is recorded. In the management file B4, information indicating which image data file has been 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 the minimum information for specifying the image data file A4 is registered.

In FIG. 2, steps S101 to S103 are performed by an image file processing module of an application program. In step S101, the personal computer 2 is connected to the electronic still camera 1
To receive an image data file. Step S102
, The MPU 21 adds the file name “A4” to the received image data file and records it in the folder 221. In step S103, the MPU 21 creates a management file in which the file name “A4” of the image data file A4 recorded in the folder 221 is recorded, assigns the file name “B4”, and records the file in the specific folder 222.

The processing from step S104 to step S106 is performed by the image display processing module of the application program. In step S104, the MPU 21 checks whether a file is recorded in the specific folder 222. Specific folder 2
When a file is recorded in the folder 22, the recorded management file (the management file B 4 in the example of FIG. 2) is read, and the file name of the image data file recorded in the folder 221 is “A4”. Identify something. In step S105, the MPU 21
1 to read the image data file A4. Step S1
In 06, the MPU 21 deletes the management file B4 recorded in the specific folder 222 and ends the process of adding the image data file. After that, MPU2
1 displays an image based on the read image data file A4 on the display device 25.

When an application program is programmed to display all the images of the image data files recorded in the folder 221 as thumbnails, the thumbnail images as shown in FIG. FIG.
FIG. 3 is a diagram illustrating a display example in a case where images based on image data files A1 to A4 recorded in 1 are displayed on a display device 25. In FIG. 3, a hatched line indicates that an image based on image data is not displayed.

On the other hand, in step S104, if no file is recorded in the specific folder 222, the MPU 21 continues to display images based on the previously read image data files A1 to A3. 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.
Therefore, an image is continuously displayed on the display device 25 by the image data files A1 to A3 already read.

-Deletion of Image Data File-The deletion of the image data file A4 recorded in an arbitrary folder 221 is performed as follows. FIG.
FIG. 7 is a diagram illustrating the flow of an image deletion process. 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. Any folder 2
21 stores image data files A1 to A3. The image data file A4 is a file newly deleted from the folder 221.

As described above, the specific folder 222 is a folder provided for creating a management file. The management file C4 is recorded in the specific folder 222. Information indicating which image data file has been newly deleted from any folder 221 is recorded in the management file C4. In the example of FIG. 4, the management file C4 includes the image data file A
4 is recorded. The management file C4 does not include image data, and minimal information for specifying the image data file A4 is registered.

In FIG. 4, steps S201 to S202 are performed by an image file processing module of an 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 recorded, assigns the file name “C4”, and records the file in the specific folder 222. I do. In step S202, the MPU 21 deletes the image data file A4 recorded in an arbitrary folder 221.

The processing from step S203 to step S205 is performed by the image display processing module of the application program. In step S203, the MPU 21 checks whether a file is recorded in the specific folder 222. Specific folder 2
If a file is recorded in the file 22, the recorded management file (the 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.

As shown in FIG. 3 described above, when an application program is programmed to display all the images of the image data files recorded in the folder 221 as thumbnails, the images of the deleted image data file A4 are displayed. Is stopped.
That is, as shown in FIG. 5, images based on the image data files A1 to A3 recorded in the folder 221 are displayed on the display device 25.

On the other hand, in step S203, if no file is recorded in the specific folder 222, the MPU 21 continues to display images based on the previously read image data files A1 to A4. That is,
If the management file C4 is not recorded in the specific folder 222, it cannot be specified that the image data file A4 recorded in the folder 221 has been deleted.
Accordingly, the image of FIG. 3 is continuously displayed on the display device 25 by the previously read image data files A1 to A4.

According to the image data file display device according to the embodiment described above, the following operation and effect can be obtained. (1) When additionally recording the image data file A4 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 as a primary file in the specific folder 222 (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 can detect that the image data file A4 has been added to an arbitrary folder 221. As a result, the MPU 21 sets an arbitrary folder 2
Compare all image data files recorded in the MPU 21 with the file list, and confirm which image data file has been newly added.
Can be greatly reduced. In particular, when the number of image data files recorded in the folder 221 is very large, the time required to check all the image data files becomes long, 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, it is possible to prevent the MPU 21 from accessing the image data file A4 being recorded in the folder 221. Can be.

(2) When deleting the image data file A4 recorded in an arbitrary folder 221 in the recording device 22 of the personal computer 2, the management file C4 recording the file name of the image data file A4 is used as a primary file. Recording to a specific folder 222 (step S20)
1) 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). Therefore, MPU21
Detects that the management file C4 has been generated in the specific folder 222, and can detect that the image data file A4 has been deleted from any folder 221. As a result, the processing time of the MPU 21 is greatly reduced as compared with the case where the MPU 21 checks all the image data files recorded in the 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, the time required to check all the image data files becomes long, 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,
Image data file A4 being deleted from folder 221
MPU 21 can be prevented from being accessed.

In the above description, the management file B4,
For the management file C4, the added image data file name “A4” and the deleted image data file name “A4”
By recording each “4”, the management file and the image data file are associated with each other. Instead, the file name of the management file B4 and the file name of the image data file A4 to be added, and the file name of the management file C4 and the file name of the image data file A4 to be deleted may be associated with each other. . In this case, the specific folder 222 and the arbitrary folder 2
The relationship with 21 is one-to-one.

The file names of the management file B4 and the management file C4 are the same as the image data file name "A4" to be added or deleted.
May be additionally provided. In this case, the specific folder 222 and the arbitrary folder 22
The relationship with 1 is one-to-many.

Further, in the above description, the added image data file name "A4" and the deleted image data file name "A4" are registered in the management file B4 and the management file C4, respectively. However, both the image data file name “A4” and the path information of the image data file A4 may be registered in the management file B4 and the management file C4, respectively. According to the above-described embodiment, the relationship between the specific folder 222 and the arbitrary folder 221 is one-to-one, but the file name “A4” and the path information are added to the management file B4 and the management file C4. If you register, a specific folder 2
The relationship between 22 and an arbitrary folder 221 is one-to-many.

In the above description, the electronic still camera 1 and the personal computer (PC) 2 are used as the display device of the image data file.
The above description has been made with reference to an example in which the electronic still camera 1 is connected to the electronic still camera 1 by using another network cable instead of the IEEE-1394 cable 3 or an interface device that performs wireless transmission and reception. And a personal computer (PC) 2 may be connected.

Also, instead of connecting the electronic still camera 1 and the personal computer 2, the personal computer 2
The CF card reader may be provided in the personal computer 2 or the CF card reader may be directly connected to the personal computer 2 so that the recorded data can be directly read from the CF card 12 on which the image data is recorded. Good.

Further, the image data file display device may be constituted by connecting a personal computer and a personal computer, and a recording medium and a personal computer to each other, or may be constituted by putting them in one housing. Can also. 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 a CF card reader or an adapter that converts the interface of the CF card into another interface such as USB, Bluetooth, 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, such as image data, is transferred and recorded by a predetermined data communication protocol regardless of a wired connection or a wireless connection between the respective electronic devices. can do.

In the present embodiment described above, 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 performed by software. It is stored as a file management program on a recording medium such as a CD-ROM or a floppy disk in the form of wear,
The file management program can be read by a personal computer and then used when an image data file recorded by an electronic camera is taken into the personal computer and displayed.

Instead of reading the program from a recording medium on which the image data file management program is recorded by a personal computer, the image data file management program may be transmitted using a transmission medium such as the Internet. . In this case, the transmitted program is read by a personal computer, and the above-described image data file fetching / deleting processing and display processing are performed by the personal computer.

The correspondence between each component in the claims and each component in the embodiment of the invention will be described. The image data file A4 is an information data file, the recording device 22 is a recording medium, and the management file B4
And C4 correspond to the specification data file, and the MPU 21 corresponds to the recording means, the specification file recording means, the specification file reading means, the specification means, the specification file deletion means and the deletion means, respectively.

[0036]

According to the present invention as described in detail above, the following effects can be obtained. (1) According to the first, second, and fifth aspects of the present invention, a specifying data file to which information relating to an information data file recorded on a recording medium is added is recorded on the recording medium, and the recorded specifying data file is stored in the recording medium. The information data file read and recorded is specified. Therefore, for example, when a new information data file is recorded on a recording medium on which an extremely large number of information data files are recorded, the extremely large number of information data files recorded on the recording medium are not compared with the file list. However, a newly recorded information data file can be specified only by reading the specifying data file. As a result, the time required for the specification can be reduced. (2) In particular, in the invention according to claim 2, since 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 is not specified on the recording medium. Therefore, access to the information data file during recording is prevented.
Further, since the specifying data file is deleted after the information data file recorded on the recording medium is specified, the information data file once specified is prevented from being specified redundantly. (3) According to the third, fourth, and sixth aspects of the present invention, the specifying data file to which the information about the information data file deleted from the recording medium is added is recorded on the recording medium, and the recorded specifying data file is stored in the recording medium. The information data file that has been read and deleted has been specified. 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, it is not necessary to check the extremely large number of information data files recorded on the recording medium with a file list. By simply reading the identification data file, the deleted information data file can be identified. As a result, the time required for the specification can be reduced. (4) In particular, in the invention according to claim 4, since the specifying data file is recorded before the deletion of the information data file from the recording medium is started, before the information data file is deleted from the recording medium, Since it can be specified, access to the information data file that is being deleted is prevented. Further, since the specifying data file is deleted after the information data file deleted from the recording medium is specified, it is possible to prevent the once specified information data file from being specified redundantly.

[Brief description of the drawings]

FIG. 1 is a diagram illustrating an outline of a display device of an image data file according to an embodiment.

FIG. 2 is a diagram illustrating a flow of an image capturing process.

FIG. 3 is a diagram illustrating a display example in which images based on 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 an image deletion process.

FIG. 5 is a diagram illustrating a display example in which images based on 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 folders, A1 to A4: image data files, B4: management files for recording, C
4: Management file at the time of deletion

Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat II (reference) // H04N 101: 00 H04N 5/91 JHF term (reference) 5B050 BA10 FA02 GA08 5B082 AA13 EA07 5C052 GA02 GA09 GB01 GC03 GD01 GE04 GF04 5C053 FA07 FA14 FA27 GB06 HA21 HA30 JA24 KA03 KA21 KA24 LA01 LA11

Claims (6)

[Claims] 1. A recording process for recording an information data file on a recording medium, and a specifying data file having information assigned to the information data file recorded by the recording process is created and recorded on the recording medium. Specifying file recording processing, specifying file reading processing for reading the specifying data file from the recording medium, and specifying the information data file from the specifying data file read by the specifying file reading processing A data file management recording medium, which stores a program for performing processing and a specification file deletion process for deleting the specification data file recorded on the recording medium. 2. The data file management recording medium according to claim 1, wherein the specifying file recording process is performed immediately after the recording process is completed, and the specifying file deleting process is performed.
A recording medium for data file management, which is performed immediately after the end of the specific processing. 3. A specification file recording process for creating a specification data file having information assigned to an information data file to be deleted from a recording medium and recording the information data file on the recording medium; Deletion processing for deletion; identification file reading processing for reading the identification data file from the recording medium; identification processing for identifying the information data file from the identification data file read by the identification file reading processing And a program for performing a specification file deletion process for deleting the specification data file recorded on the recording medium. 4. The data file management recording medium according to claim 3, wherein the identification file recording process is performed before the deletion process is started, and the identification file deletion process is performed when the identification process is performed. A recording medium for data file management, which is performed immediately after the process is completed. 5. A recording means for recording an information data file on a recording medium, and a specifying data file having information assigned to the information data file recorded by the recording means is created and recorded on the recording medium. Specifying file recording means, specifying file reading means for reading the specifying data file from the recording medium, and specifying the information data file from the specifying data file read by the specifying file reading means A data file management device comprising: a specification file deletion unit configured to delete the specification data file recorded on the recording medium. 6. A specification file recording means for creating a specification data file having information assigned to an information data file to be deleted from a recording medium and recording the information data file on the recording medium; Deleting means for deleting; 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. And a specification file deletion unit for deleting the specification data file recorded on the recording medium.