JPS60114966A - Method and apparatus of document retrieval and storage - Google Patents

Abstract

PURPOSE:To decrease the number of write of an external storage device by replacing a retrieved title and title information to the external storage memory device from a nonvolatile memory after they reach a prescribed amount. CONSTITUTION:A titled memory 21 storing the retrieved titled and title information is a nonvolatile memory backed up by a battery. The retrieved titled and titled information are written in the title memory 21. Then document information is stored in the external storage device 16. Furthermore, a CPU11 counts the total number SIGMAT of the retrieved titles and titled information and when they do not reach a prescribed number N, the input of the next document information is possible. When the input of document information is repeated and the total number SIGMAT of the retrieved titles and titled information reaches to N, all the titles in the titled memory 21 are stored in the external storage device 16.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a document retrieval device using an external storage device such as an optical disk, and a document storage method using this document retrieval device.

C. Prior Art] A document filing system that uses a central processing unit to store and search documents electronically is a system that uses a central processing unit to store and search documents electronically.
It is effective for storage.

FIG. 1 shows the configuration of a conventional document retrieval device using an optical disk. CPU (central processing unit) 11
is connected to the document memory 13 and the CRT 1 via the data bus 12.
4, a keyboard 15, an external storage device 16, an image display device 17, and a printer 18 are connected. Document information is manually entered into this device using the keyboard 15 or the image data device 17. The document memory 13 temporarily stores manually entered document information. A search title and title information are added to the stored document information, and then written to the external storage device 16. Here, the search title is a heading for the search, and the operator can use the keyboard 15
This is input from . Further, title information is identification information that is internally added by the document search device itself to identify each input document. The seven document information stored in the external recording device 16 is searched manually based on the search title. This document information is displayed on the CRT 14 or printed out by the printer 18.

However, in such a conventional document search device, a search title and title information are added to each document. Therefore, when creating a large number of documents, a considerable amount of time is required to store them in an external storage device. Furthermore, when using a non-rewritable device such as an optical disk as an external storage device, the search title and title information occupy a relatively large area, making it impossible to store a large amount of document information. . Furthermore, as a result of this additional information occupying a large proportion, it is not possible to sufficiently shorten the time required to search for documents.
.

[Object of the Invention] In view of the above circumstances, an object of the present invention is to provide a document retrieval device and a document storage method that enable efficient document retrieval and storage of a larger amount of document information.

[Structure of the invention]

In the present invention, a document search device is equipped with a nonvolatile memory that temporarily stores search titles and title information.

After the search title and title information reach a predetermined amount, they are transferred from the nonvolatile memory to the external storage device, thereby reducing the number of times they are written to the external storage device.

〔Example〕

The present invention will be described in detail with reference to Examples below.

FIG. 2 shows the document retrieval device of this embodiment. Components that are the same as those in FIG. 1 are designated by the same reference numerals, and their descriptions will be omitted as appropriate. Every device is equipped with a title memory 21 for storing search titles and title information. The title memory 21 is a nonvolatile memory backed up by a battery. In this embodiment, the external memory 16 uses a non-replaceable and non-rewritable storage medium.

FIG. 3 shows a document storage method in this document retrieval device. When this device is powered on (Step ■), until it starts storing documents (Step ■:
NO), the original search or document creation process is performed (step ■) b. If a newly created document is to be stored (step ■ + Yes), a search title and title information are created. (Step ■). The search title and title information are written into the title memory 21. Thereafter, the document information is stored in the external storage device 16 (step 2). Next, CPU 11
counts the total number ΣT of search titles and title information, and if this does not reach the predetermined number N (step ■; Y
eS), the following document information can be handled manually. When the input of document information is repeated and the total number ΣT of search titles and title information reaches N (NO), all titles stored in the title memo IJ 21 are stored in the external storage device 16 (step ■). .

[Modified example]

FIG. 4 shows a modification in which an optical disk is used as an external memory as a non-replaceable storage medium.

If the storage medium of external storage device 16 (FIG. 2) is not replaceable, the search title and title information must be written to this storage medium before replacement. Such writing may not be performed due to an unexpected power outage or the like. This document search device takes such a situation into consideration.

First, when this device is powered on (step ■), C
The PU 11 determines whether all the search titles and title information in the title memory 21 are stored in the external storage device 16 (step 0). If it is not stored (No), the corresponding optical disc is inserted into the device, and the search title and title information are stored (step 0).

If the search title and title information in the title memory 21 are all stored in the external storage device 16, then after the optical disc is inserted, a search or document creation process is performed. If the document is to be stored (step @; Yes), a search title and title information are created (step [phase]). The created search title and title information are written into the title memory 21, and the CPU II counts the total number ΣT. If the total number ΣT does not reach the predetermined number N (step [phase]; N○), only the document information is stored in the external storage device 16 (step @). predetermined number N
When the search title and title information in the title memory 21 are stored in the external storage device 16 (step [phase]), the last manually entered document information is stored (step 0).

On the other hand, if document information is manually processed or searched instead of storing the document information (Step ■No), then search processing or document information is manually processed (Step ■). .

In addition, when removing the optical disc from the device 16, the search title and title information are stored in the external memory (,!Device 1).
6 (step ○). After this, the next optical disc is inserted (step C).

When a series of tasks is completed (Step @; No),
The search title and title information are stored in the title memory 21.
is transferred to the external storage device 16 (step @))
, after which the power is cut off.

(step [phase]).

In this modification, even a movable, non-rewritable storage medium such as an optical disk can be used alone, resulting in compatibility.

〔Effect of the invention〕

As explained above, the document retrieval device of the present invention is provided with a non-volatile memory to temporarily store the search title and title information, so even if a power outage occurs while writing these to an external storage device, the document retrieval device of the present invention can Unlike this, there is no risk of losing the search title and title information. Furthermore, according to the document storage method of the present invention, more information can be stored in an external storage device of the same capacity.

[Brief explanation of the drawing]

FIG. 1 is a block diagram of a conventional document retrieval device, FIG. 2 is a block diagram of a document retrieval device according to an embodiment of the present invention, and FIG. 3 is a flowchart showing a document storage method etc. in this document retrieval device. FIG. 4 is a flowchart showing a document storage method etc. in a modified example of the present invention. 11...cpu. 16...External memory, 21...Title memory. Applicant Fuji Xerox Co., Ltd. Agent Patent Attorney Umeo Yamauchi Figure 1 Figure 2 Figure 3

Claims (1)

[Claims] 1. An external storage device that stores document information, a nonvolatile memory that temporarily stores a search title and title information corresponding to the document information, and a search title and a search title written in the nonvolatile memory. A document retrieval device characterized by comprising: a control means for writing title information into the external storage device when a predetermined number of title information is reached. 2. Write the search title and title information corresponding to the document information into a nonvolatile memory, and when the number of written pieces of information reaches a predetermined number, store them in an external storage device where the document information is stored. Characteristic document storage method.