JP2563328B2 - How to copy a document file - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a method of copying a document file in an electronic file system or the like for filing a document such as a patent application-related document on a recording medium such as an optical disk.

2. Description of the Related Art FIG. 4 shows an example of the organization of document files in this type of electronic file system. The information recording area of a medium such as an optical disc is an actual area 1 for recording image information of each page.
And a thin registration (directory) 2 for recording management information.

One document module (also simply referred to as a document), which is a management unit, is composed of a set of image information of multiple pages. In the illustrated specific example, a set of page 1 and page 2 is defined as a document module of document number 1 (also simply referred to as document 1). In the item of document number 1 of registration thin 2, a pointer of page 1 (a, b) and a pointer of page 2 (c, d) are recorded. The pointer (a, b) is the head and tail addresses of the part of the page 1 where the image information is recorded, and the pointer (c, d) is the page 2 recording address.

Further, document files such as patent application documents are often revised. Revision of a document here is to re-register as a revised document module a new page added to all or some of the pages belonging to a registered document module.

In the example of FIG. 4, document 1 consisting of page 1 and page 2
A new page 3 is added to the document and is defined as document 2 as a revised version of document 1. Document number 2 in registration thin 2
In the page pointer section of, the page 1 pointer (a,
b), the pointer (c, d) of page 2 and the pointer (e, f) of page 3 are recorded. Further, in the section of the revision history of document number 2, there is recorded data indicating that the document is a "revised version of document 1."

The method of additional recording associated with such a process is generally performed in an electronic file system using a write-once optical disc.

By the way, in this type of system, a registered document file may be copied to another medium for various purposes. In the conventional copying method, even if the document file includes the revised document as described above, the copying is performed as follows without considering it at all.

That is, the information of the registration thinness 2 of the source file is read, the image information of the corresponding page is read from the actual area 1 according to the page pointer for each document, and is transcribed to the copy medium.
In addition, a thin registration was newly created on the copy medium.

A detailed description will be given with reference to FIG. First, the page pointers (a, b) (c, d) of the document number 1 in the registered thin 2 are read, and the image information of page 1 and page 2 is read accordingly and recorded on the copy medium. Next, the page pointers (a, b) (c, d) (e, f) of the document number 2 are read, and the image information of page 1, page 2 and page 3 is read accordingly and recorded on the copy medium. Therefore, as shown in FIG. 5, pages belonging to document 1 are included in the actual area of the copy file.
The image information for two pages 1, 2 and the image information for three pages 1, 2, 3 belonging to document 2, which is a revised document of document 1, are recorded as independent items. That is, two pages, page 1 and page 2, are recorded in duplicate.

Even in the conventional method, the data in the revision history section of registration thin 2 is read, but it is used only for transferring the data “revised version of document 1” to the registration thin of the copy file.

Problems to be Solved by the Invention As described above, since the copy is performed by substantially ignoring the existence of the revised document in the document file as described above, as shown in FIG. 4 and FIG. It is irrational to copy the image information of the same page multiple times to the actual area on the side. This is a waste of recording capacity on the copy medium side and a waste of copy time. In some cases, when the document file on the optical disc is copied to another optical disc having the same capacity, the copy disc side may overflow due to the useless page duplication.

The present invention has been made to solve the above-mentioned conventional problems, and an object thereof is to eliminate the above-mentioned page duplication copy caused by a revised document and a method for copying a document file that avoids wasteful copying. To provide.

SUMMARY OF THE INVENTION Therefore, in the present invention, there is a certain document module that is actually trying to perform a copy operation because both the revised document module and the original document module before the revision that is the source of the revised document module are included in the copy range. If it is recognized that the revision document module is the above revision document module, it is checked whether each page of the revision document module is a page added at the time of revision or a page before revision, and the revision document module As the copy operation, it was decided to transfer only the additional page to the actual area of the copy medium.

Operation The copy operation of the revision document module copies only the pages added at the time of revision, and does not copy pages existing before revision. Pages existing before revision are copied by the copy operation of the document module before revision.

Example Similar to the above-mentioned conventional example, the document 1 including the page 1 and the page 2 (the document module of the document number 1) is revised, and the page 1 and the page 2 are added with the page 3 to be the revised document 2.
A document file additionally registered as will be described as an example.

FIG. 1 shows an example of organization of a document file containing the above contents. The basic example is the same as the conventional example in FIG. 4, but
It differs from the conventional one in that a new page flag is added to the page pointer of registration thin 2.

Image information of each page is recorded in each illustrated address portion in the physical region 1 of the medium, and management information is recorded in the registration thin layer 2.

In registration thin 2, (a, b, 1) and (c, d, 1) are recorded in the page pointer section of document number 1. Here, (a, b) indicates the recording address of the image information of page 1,
“1” of (a, b, 1) is the new page flag. Flag "1"
Indicates that the page is the page registered as the document 1 for the first time (page not registered before that). Similarly, (c, d, 1) is data in which the flag "1" indicating that this is a new page is added to the recording address (c, d) of page 2.

Also, in the page pointer section of document number 2, (a, b,
0), (c, d, 0) and (e, f, 1) are recorded, and document number 2
The Revision History section of documented that this is a revised version of Document 1.

(A, b) of (a, b, 0) indicates the recording address of page 1, and the last new page flag “0” indicates that this page 1 belongs to document 1 before revision. . Similarly (c,
d, 0) indicates that the page 2 recorded at the addresses cd is the document 1 before revision. Furthermore (e, f,
1) indicates that page 3 recorded at addresses e to f is a new page added at the time of revision.

In copying the document file configured as described above to another medium, according to the method of the present invention, when both the document 1 before revision and the revised document 2 are included in the copy range, the copy of the document 1 is performed. In the operation, all pages 1 and 2 belonging to it are copied, but in the copy operation of the revised document 2, only the additional page 3 whose new page flag is "1" is copied and the flag is "0" before the revision. Do not copy pages 1 and 2. As a result, as shown in FIG. 2, the image information of pages 1, 2, and 3 is recorded only once in the actual area of the copy file, and pages 1 and 2 are redundantly recorded as in the conventional example of FIG. It will not be done.

The flowchart of FIG. 3 shows an example of a specific processing procedure of the above-described copying method according to the present invention.

FIG. 3 will be described. When the document numbers A to A + N are designated as the copy range (100), the document number A is first set in the register D (200), and the information of the item of the document number D in the thin registration of the source file is read (30).
0), it is checked whether the document D is a revised document (400).

If the document is not a revised document, the image information of all pages belonging to the document D is read from the source file (500) and recorded in the copy file (550), and the management information about this document D is registered in the copy file. Record thinly (700).

When the copy operation for this one document is completed, the document number D is incremented (800), it is confirmed that D does not exceed the tail A + D of the copy range (900), the process returns to step 300 again and the next step is performed. Perform a document copy operation.

In step 400, if it is recognized that the document D is the revised version of the document 8, the document B is copied in the copy range A to A +.
It is checked whether or not it is included in N (450), and document B before revision B
Is not included in the copy range, the process proceeds to the step 500 side described above, and all pages of the document D are copied.

If Document B before revision is also included in the copy range, Document D
Of the pages belonging to, only the additional pages for which the new page flag is “1” are copied (600 → 650), and the process proceeds to step 700 described above.

EFFECTS OF THE INVENTION As described in detail above, according to the method for copying a document file according to the present invention, when a revision file is included in the document file, only the pages added at the time of revision are copied in the revision document copy operation. Since the same page is copied, the same page is not duplicated a plurality of times as in the prior art, and the waste of the capacity of the copy medium and the waste of the copy processing time can be eliminated.

[Brief description of drawings]

FIG. 1 is a conceptual diagram of a document file organized according to the present invention, FIG. 2 is a conceptual diagram of a copy file when the document file is copied by the method of the present invention, and FIG. 3 is a copy method of the present invention. A flow chart showing a specific example, FIG. 4 is a conceptual diagram of a document file in a conventional organization format, and FIG. 5 is a conceptual diagram of a copy file when copied by a conventional method.

Claims (1)

(57) [Claims] 1. A document module is defined by a set of document information of a plurality of pages, the document information of each page is recorded in an actual area on a recording medium, and each document module belonging to each document module is registered thinly on the medium. It is a file organization that records the pointer of the page, and a registered document module is revised, and new pages are added to all or some of the pages that belong to it, and it is additionally registered as a revised document module. When copying a document file to another medium, both the above-mentioned revised document module and its original document module before revision are included in the copy range, and there is a certain document module that is actually being copied. If it is recognized from the above registration thinness that it is the revised document module, each page of the revised document module is the page added at the time of revision. Whether from the previous revision is pages of either examined by the registration thin, copy a document file, characterized in that post only the additional pages in the real area of the further medium as a copy operation revised document module.