JP2849487B2 - Staging method - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of recording information representing data recorded on a recording medium such as an optical disk in a staging file, and searching for the information recorded in the staging file, thereby converting target data to an optical disk or the like. Is applied to a device that reads from a recording medium of
Particularly, a staging method suitable for reducing staging time when staging information representing data recorded on a rewritable recording medium and a portable recording medium, such as a rewritable optical disc, in a staging file About.

[0002]

2. Description of the Related Art As a conventional staging method, the invention described in Japanese Patent Application Laid-Open No. 63-112179 is known. The invention disclosed in the above publication is as follows. When updating / deleting data recorded on a non-rewritable recording medium, it is necessary to update / delete information on a staging file representing the updated / deleted data. In this case, the update / deletion of data in the non-rewritable recording medium is performed by additionally recording at the end of a recorded data area of the non-rewritable recording medium. For this reason, the end of the data recorded on the non-rewritable recording medium and the end of the newly added updated / deleted data are detected, and only the information representing the additionally recorded updated / deleted data is staged. By staging to a file, information on the staging file is updated and deleted.

In the prior art, when data is updated / deleted in staging from a non-portable rewritable recording medium such as a hard disk, the data recorded on the recording medium is deleted. It was necessary to re-stage all the information representing.

[0004]

According to the above-mentioned prior art, when a recorded recording medium such as a magnetic tape or a magnetic disk is staged without being updated / deleted, it is not rewritable and is not portable. Consideration was given to the case of staging the recording medium.

However, like a rewritable optical disk,
No consideration is given to staging of rewritable and portable recording media. Hereinafter, this point will be described using an electronic file device using a rewritable optical disk as an example.

When retrieving an image recorded on an optical disk, a title (name added to the image) representing the image recorded on the optical disk is previously staged on a nonvolatile memory of the magnetic disk, and recorded on the magnetic disk. The target image is read from the optical disc by searching for the title information set. Here, the rewritable optical disk is portable, and there is a possibility that an image is added, updated, or deleted by another electronic filing device after staging. When an image is updated, added, or deleted in another electronic file device, it is necessary to perform staging again. In a recording medium such as a non-rewritable optical disk, as described above, the updated / added / deleted data is additionally recorded at the end of a recorded data area on the optical disk. It should have been considered. However, data that has been updated / added / deleted on a rewritable recording medium is overwritten on the data to be updated / added / deleted, so when restaging, all data is read from the optical disk and recorded on the magnetic disk. I needed to. That is,
When data recorded on a rewritable and portable recording medium is added / updated / deleted by another device, the data recorded on the recording medium can be processed again by the same device. There is a problem that it is necessary to redo the staging for the data, and it takes a lot of time.

[0007] The present invention solves the above-mentioned problems of the prior art, and when data written on a portable rewritable recording medium such as an optical disk is updated / added / deleted,
An object of the present invention is to provide a staging method that significantly reduces the re-staging time.

[0008]

In order to achieve the above object, a staging method according to the present invention provides a staging method for a recording medium for rewriting by overwriting already recorded information when updating or deleting information. In the staging method,
When performing the staging, the storage information relating to the search keyword or the key code is staged on the staging file, and the date and time when the staging is performed are stored. When the staging is performed again, the date when the staging is performed on the recording medium. -It is characterized in that stored information having a date and time related to information processing after time is detected, and the staging process is performed again only for the detected stored information.

[0009]

In a rewritable recording medium such as an optical disk, when updating or deleting data, the information (updated and deleted date / time, title data and type) is overwritten on the target data. Paying attention, the present invention utilizes this recording method. In the present invention, it is determined whether or not a portion of data that has already been staged has been updated, deleted, or added based on the date and time when the stage was performed. That is, only data having a date / time greater than the staged date / time is staged as updated / deleted data. As a result, among the staged data, data that has not been updated, deleted, or added is not reread, so that the staging time can be reduced.

[0010]

Embodiments of the present invention will be described below in detail with reference to the drawings.

FIG. 2 is a block diagram showing an electronic filing apparatus to which the present invention is applied, and shows a search system in which a host computer and an electronic filing apparatus using an optical disk are connected. In FIG. 2, an optical disk 6 is a recording medium on which data to be staging is recorded. A management file 2 and a staging file 3 are a file for storing a pointer of staged data (title position) and a file for staging again. This is the file that stores the data. The storage device 4 and the memory 12 are devices for temporarily storing data read from the optical disk 6 and for temporarily storing information read from the staging file 3. The terminal device 11 allows the operator to instruct retrieval of the staging file 3,
The host computer 1 instructs the electronic filing apparatus 5 to request display, printing, or facsimile distribution of image data, or an instruction to request a staging of data on the optical disk 6 again. A display device 7, an image printing device 8, and a facsimile input / output control device 9 are devices for displaying, printing, and facsimile distribution of image data read from the optical disk 6. At the time of facsimile distribution, a facsimile output device is connected via the public line 12. It is output to 10. The optical disk 6 is a removable recording medium,
When performing a search on a plurality of optical discs, it is necessary to read out a title stored on the optical disc 6 in advance and transmit the title from the electronic filing device 5 to the host computer 1. Therefore, the host computer 1
Stores information about titles in the management file 2 and the staging file 3. In the search, the staging file 3 is searched from the terminal device 11, the result is transferred to the electronic filing device 5, the image data on the optical disk 6 is read and displayed on the display device 7, or the image printing device 8 and the facsimile Output to the output control device 9.

As shown in FIG. 3, the information recorded on the optical disk 6 includes an optical disk ID unit 30, a title storage unit 3 and the like.
1 and an image data storage unit 32.
The optical disk ID section 30 is an area for storing identification numbers for identifying a plurality of optical disks 6. The title storage unit 31 stores a plurality of titles (T-1 to T-n).

As shown in FIG. 4, each of the titles T-1 to T-n includes a type 311, which indicates the processing status of the title, a title ID 312, which indicates a unique number of the title, and storage information of the title and image data. Data 313 indicating
It is composed of a date / time 314 when the title is registered on the optical disc 6. Here, in the area of the type 311, “R” is recorded for addition and update of data, and “M” is recorded for deletion. When data is added to the optical disk 6, a new title is additionally recorded. In the case of deletion, "M" is overwritten on the target title type 311 and the date / time 314 is overwritten. In the update, the type is recorded with the same “R” as the addition, and the data and the date / time are overwritten. With the above processing, addition, update, and deletion are realized.

FIG. 1 shows a management file 2 and a staging file 3 in a staging process according to an embodiment of the present invention.
FIG. 5 is an explanatory diagram showing an example of a title storage unit 31. Here, the management file 2 and the title storage unit 31 when the optical disk 6 already staged up to the title T-12 is restaged to the staging file 3
The relationship is shown. The management file 2 includes an ID section 21 for storing an optical disc ID (O-1, 0-2, etc.), and a title position next to a staged title on the optical disc 6 (a first title position among unstaged titles). Pointers (P-1, P-
2), and a date / time for storing the staging date and time (D-1, D-2, etc.).
And a time unit 23. The ID section 21 stores an optical disc ID that may be staged, and here, optical discs IDO-1 to O-4. In the pointer section 22, pointers P-1 to P-1 indicating the next title position of the staged title (the first title position of the unstaged titles) on the staged optical disk 6 are provided.
-4 is stored. The date / time section 23 includes
The staging date / time D-1 to D-4 are stored. In FIG. 1, the optical disk ID (O-3)
Pointer P-3, as indicated by the broken line in FIG. 1, indicates the title T-1 next to the already staged title T-12.
3 shows the title position.

The staging file 3 has a title ID 313 (I-ID) in each title (T-1, T-2, etc.).
, I-2, etc.) and data 313 (DA-1, D-2) in each title (T-1, T-2, etc.).
A-2) and a date / time 31
4 (DY-1, DY-2, etc.) date / time part 2
And 6. The ID section 24 stores the title IDs I-1 to I-12 (312) uniquely assigned to the titles T-1 to T-n shown in FIG. 4, and the data section 25 shown in FIG. Data DA-1 to DA-12
(313) is stored, and the date / time DY-1 to DY-12 (314) shown in FIG. As described above, all the contents constituting the title are stored in the staging file 3 except for the type.

FIG. 5 is a flowchart showing an example of the operation of the host computer 1 in the staging method shown in FIGS. FIGS. 6 and 7 are flowcharts showing an example of the operation of the electronic filing apparatus 5 in the staging method shown in FIGS. In the staging process, first, based on the optical disk ID input by the operator from the terminal device 11 (here, it is assumed that the optical disk IDO-3 has been input), the ID section 21 on the management file 2 is searched, and the optical disk ID
The pointer P-3 and the date / time D-3 corresponding to O-3 are obtained, and the information is transmitted to the electronic filing apparatus 5 (steps 51, 52, 53, 54 in FIG. 5).

The electronic filing device 5 includes a pointer P-
3 to obtain the last title position T-12 of the read title (step 69 in FIG. 6). Then, the electronic filing apparatus 5 transmits the current date and time to the host computer 1 as the staging start date / staging start time (Step 7 in FIG. 6).
1).

Here, the host computer 1 receives the staging start date and time received from the electronic filing device 5.
The staging start time is stored in the storage device 4 (Step 56 in FIG. 5).

The electronic filing apparatus 5 performs step 69
When the staging start date and the staging start time received from the host computer 1 are "null", the staging is new, and when the staging start time and staging start time are not "null", the staging start date and the staging start time are first positioned at the top (T-1) of the read title position (FIG. Step 77), the title T-1 on the optical disk 6 is read into the memory 12 from this (step 78 in FIG. 7). If the date / time 314 of the title T-1 is larger than the staging start date / time transmitted from the host computer 1, it is determined that update / deletion has been performed, and the title is transmitted to the host (step 7 in FIG. 7).
8, 80). Thereafter, the pointer is positioned at the next title T-2 (step 81 in FIG. 7). If the date / time 314 is less than or equal to the date / time transmitted from the host, the title is not transferred to the host, and the pointer is positioned at the next title (steps 80 and 81 in FIG. 7). By performing the above-described processing up to the title T-12, it is possible to transmit only the updated and deleted titles among the read titles to the host computer 1.

Then, the next title T-13 that has been read from the optical disk 6 is transmitted to the host computer 1, and the pointer is positioned at the next title (steps 74 and 75 in FIG. 6). At this time, by detecting an unwritten block (step 76), additional data up to the last title T-17 can be transmitted to the host.

The host computer 1 reads the title received from the electronic filing device 5 (step 57 in FIG. 5). If the title ID 312 is equal to or less than the maximum I-12 of the read data, the staging file 3 is set using the title ID 312 as a key. ID part (I-1 to I
-12) (steps 59 and 60 in FIG. 5). When the type 311 of the retrieved title is “R”, the data part (DA) of the title in the staging file 3
-1 to DA-12) and date / time (DY-1 to DY-1)
2) is updated (step 62), and when the type 311 is "M", the title is deleted (step 6).
3). The data updated and deleted on the optical disk 6 by the above processing is reflected on the staging file 3.

For the added data, when the title ID 312 of the received title is larger than the maximum I-12 of the read data, the title ID 312, data 313, and date / time 314 are stored in the staging file 3 after that. Reflected by adding to the tail (step 64 in FIG. 5).

By performing the above-described processing for all the received titles, the staging file 3 can be constructed. Finally, the management file 2 is updated so that the pointer P-3 of the management file 2 points to the title T-18, and the staging start date and the staging start time received from the electronic filing device 5 in step 56 are used. Is updated (step 68 in FIG. 5).

If the ID part does not exist as a result of searching the ID part on the management file 2 in the above operation,
It can be seen that the optical disk 6 has not been staged (step 53 in FIG. 5). When newly staging an unstaged optical disk, the read pointer is set as the head of the title, and the staging start date / time is set to "null" (step 5 in FIG. 5).
3), and transmit it to the electronic filing device 5 together with the optical disk ID (step 54 in FIG. 5).

The electronic filing device 5 transmits the staging start date / time to the host (step 7 in FIG. 6).
1) The title is transmitted to the host computer 1 until an unwritten block is detected (step 7 in FIG. 6).
4, 75, 76).

The host computer 1 adds all data to the staging file 3 (step 6 in FIG. 5).
4) Add the optical disk ID 30 to the ID file O-5, the read pointer to P-5, and the staging start date / time to D-5 as the management file 2 (step 67 in FIG. 5).

If the optical disk 6 corresponding to the optical disk ID specified by the host computer 1 does not exist, the electronic filing apparatus 5 reports to the host that the target optical disk does not exist (step in FIG. 6). 72). Upon receiving the report, the host computer 1 notifies the operator that there is no target optical disk (step 58 in FIG. 5).

As described above, when the optical disk 6 that has already been staged is staged again,
It is possible to reduce the staging time by updating / deleting only titles that have been staged and have a date / time greater than the last staged date / time, and adding only information that has not yet been staged.

The host computer 1 transmits only the staging start date / staging start time D-3 to the electronic filing device 5 and
Is searched from the beginning to the end of the storage information on the optical disk 6 by the staging start date D-3, and only titles having a larger date and time of the storage information are transmitted to the host, thereby being updated, deleted, and added. The reflected data can be reflected on the staging file 3.

Furthermore, in the process of step 74, the title of the type "M" (deletion) is not transmitted to the host, so that it is possible to prevent the re-stage of the title deleted after being added.

FIG. 6 is a diagram showing processing at the end of use of the electronic filing apparatus. At the end of use of the electronic filing apparatus, it is known whether or not there is a designation of a user who performs staging automatically (step 80), and if so, the optical disk ID 30 of the optical disk 6 is transmitted to the host computer 1 (step 81). The host computer 1 searches the management file 2 by the optical disk ID 30, and transmits the corresponding read pointer and the staging start date / time to the electronic filing device 5,
The electronic file device 5 receives this (step 8)
2). The electronic file device 5 compares the largest date / time in the title on the optical disk 6 with the staging start date / time, and determines that the largest date / time of the title on the optical disk 6 is staging. If it is larger than the start date / time, it is considered that the storage information of the optical disk 6 has been updated, deleted, or added, and the above-described staging process is started (step 83).

In this way, it is possible to automatically stage the storage information of the optical disk 6 that has been updated, deleted, or added in another electronic filing device or the electronic filing device 5 according to the designation of the user.

In the present embodiment, the case where staging information is stored in a staging file using a magnetic disk has been described. However, the present invention is not limited to this, and may be stored in all types of storage devices. can do.

In the case of a system having a staging file in an electronic file device, or in a system including a search device connected via a LAN or the like, in a case where the search device has a staging file, the electronic file device is connected to the electronic file device. It is also possible to stage the title information of the optical disc at high speed.

As described above, according to this embodiment,
Since it is not necessary to read the staged data from the optical disk 6, the number of times of reading and the data processing thereof can be greatly reduced, and the staging time can be reduced.

For example, it is assumed that an optical disk having 10,000 pieces of image data has been staged, and it is assumed that this staging processing time takes 60 milliseconds for 6 milliseconds per case. In the prior art, 66 seconds are required to perform staging again after adding and updating and deleting 1000 pieces of image data, but according to the present embodiment, updating, deleting and adding are performed. The staging process can be performed in 12 seconds because only the performed data is restaged.

[0037]

As described above, according to the present invention, there is no need to read out the staged data again.
The number of readings and the data processing thereof can be greatly reduced, and the staging time can be reduced.

[Brief description of the drawings]

FIG. 1 is a file state diagram of a staging process according to an embodiment of the present invention.

FIG. 2 is a configuration diagram of a search system showing one embodiment of the present invention.

FIG. 3 is an information storage state diagram of the optical disc in FIG. 2;

FIG. 4 is a configuration diagram of one title in FIG. 3;

FIG. 5 is an operation flowchart of the host computer at the time of staging processing in FIG. 1;

FIG. 6 is an operation flowchart of the electronic filing apparatus during a staging process in FIG. 1;

FIG. 7 is an operation flowchart of the electronic filing apparatus at the time of staging processing in FIG. 1;

FIG. 6 is an operation flowchart at the end of use in the electronic filing apparatus.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Host computer 2 Management file 3 Staging file 5 Electronic filing device 21 ID part (optical disk) 22 Pointer part 23 Date / time part 24 ID part (title) 25 Data part 26 Date / time part 30 Optical disk ID part 31 Title storage part 32 Image data storage unit 311 Type 312 Title ID 313 Data 314 Date / time T-1 to Tn Title O-1 to O-4 Optical disk ID unit P-1 to P-4 Pointer D-1 to D-4 Staging start Date / time I-1 to I-12 Title ID part DA-1 to DA-n Data part DY-1 to DY-12 Date / time

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁶ , DB name) G06F 3/06 G06F 12/08

Claims (3)

(57) [Claims] In a staging method for a recording medium in which information is rewritten by overwriting already recorded information when updating or deleting information, storage information relating to a search keyword or a key code is used when performing staging. Stage on the staging file,
The date and time when the staging was performed are stored, and when the staging is performed again, storage information having a date and time related to information processing after the date and time when the staging is performed on the recording medium is detected, and the detected storage is performed. A staging method characterized by performing a staging process again only for information. 2. A staged search keyword or key code information is stored in a staging file together with a date and time when the staging is performed, and the information is added by detecting the end of the staged storage information on a recording medium. The staging method according to claim 1, wherein only the performed information is restaged. 3. The storage information added on a recording medium,
3. The staging method according to claim 2, wherein the information that has been deleted later is not restaged.