JPH033076A - document filing device - Google Patents

Abstract

PURPOSE:To make work corresponding so-called 'oblique reading' highly efficient by automatically searching and displaying an important page in which tables, graphs, or the outline of a document are written from a retrieved document. CONSTITUTION:The document filing device is provided with a data volume detecting means D for detecting the compressed data volume of each page for document compressed data read out from a data storage means B, a reference value setting means E for setting up and storing the reference value of compressed data in each page and a display necessity determining means F for comparing the compressed data volume of each page detected by the means D with the reference value set up by the means E and determining whether the contents of each page are to be displayed or not. Only the document compressed data of the page determined at its display by the means F are successively extended by a data compressing/extending means A and displayed on a display means C. Consequently, an important page describing the tables, graphs, the outline, etc., in the document and expressing the contents or feature of the document automatically are selected and displayed.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a document filing device that retrieves and outputs document data stored in a storage medium such as a hard disk.

[Conventional technology]

2. Description of the Related Art In recent years, document filing devices have been widely used that read a single document as an image, convert it into document data, compress the amount of data, store it in large numbers on an optical disk, and retrieve it at a desired time for display or printing.

In such a conventional device, when displaying a searched document page by page, either the document is displayed in order starting from the first page, or the page specified by the operator is displayed.

For example, after the operator specifies the document name B from three documents as shown in Figure 5(a), the display is normally set in order from the first page, and as shown in Figure 5(b). To,
Each time the operator instructs the next page, the pages are displayed in order from page 1 of document name B, page 2, page 3, etc., and the page 8 that the operator wants to display is displayed.
If you specify pages, 20 pages, 30 pages, etc., only the specified pages will be displayed one after another, as shown in FIG. 3(c).

[Problem to be solved by the invention]

However, in the above-mentioned document filing device,
When an operator wants to check the contents of a searched document or get an overview, it is not possible to display important pages in order by displaying them from the first page of the document or by specifying pages at random. The problem was that it took a long time to achieve the goal.

This invention was made in view of the above points, and it is possible to automatically select and display important pages in a document that contain tables, graphs, summaries, etc. and that represent the content and characteristics of the document. The purpose is to

[Means to solve the problem]

In order to achieve the above object, the present invention is equipped with data compression/decompression means A, data storage means B, and display means C, as shown in the functional block diagram of FIG. The compressed document data is compressed by the data compression/expansion means A and stored in the data storage means B, and the compressed document data read from the data storage means B is compressed by the data compression/expansion means A.
In a document filing device that decompresses each page and displays them on a display means C, a data amount detection means detects the amount of compressed data for each page of compressed document data read from the data storage means B; The compressed data amount for each page detected by the reference value setting means E which sets and stores the data reference value and the data amount detection means is compared with the reference value set by the reference value setting means E, and each page is A display necessity determining means F for determining whether or not to display each page is provided, and a data compression/expansion means sequentially compresses and decompresses only the document compressed data of the pages determined to be displayed by the display necessity determining means F. The image is expanded by A and displayed by display means C.

〔Example〕

Hereinafter, one embodiment of the present invention will be explained in detail with reference to FIGS. 2 to 4.

FIG. 2 is a block diagram showing the configuration of a document filing device according to the present invention.

This document filing device consists of 1 keyboard, 2 mouse
．． Keyboard/mouse I/F! l, microcomputer (CPU) 4, scanner 5. Scanner/printer I/F6. Image memory 7, compression/expansion processing section 8. Disk I/F9. Optical disc device (ODD)10. Hard disk device (HDD) 11° floppy disk device (
FDD)12. Image processing unit 13, equipped with a cathode ray tube display! (CRT) 14°CRTI/F15. printer 1
The compression/expansion processing section 8 and the image processing section 13 are also functions actually executed by the microcomputer 4.

The keyboard 1 and mouse 2 are used to instruct to store documents read from the scanner 5, to search for stored documents, and to display searched documents sequentially from the first page or to display a specified page. The input instructions are inputted using the keyboard/mouse I.
It is sent to CPU4 via /F5.

The CPU 4 controls the entire device, and also performs processing for determining whether or not each page of a retrieved document needs to be displayed, and for setting a reference value used in the determination and storing it in the internal memory.

The scanner 5 reads the document as an image, converts it into document data, and sends it to the image memory 7 via the scanner/printer I/F 6. At that time, the document data is displayed on the CRTi4 via the CRTI/F15.

The image memory 7 temporarily stores the document data read from the scanner 5 and the compressed document data read from the 0DD 10, and the compression/expansion processing section 8 compresses the document data stored in the image memory 7 and decompresses the compressed document data. Process.

○The DD10 stores compressed document data sent from the compression/decompression processing section 8, and the HDDII stores the reference value set by the CPU4, various information on the document data stored in the 0DD10, and the system program of this document filing device. etc., and the FDD 12 stores a file list of document data stored in the 0DD 10.

And 0DDIO, HDDI 1. Data is read into and from the FDD 12 via the disk I/F 9.

The other image processing section 13 edits the document data, and when the printer receives an instruction to print the searched document data, it transfers the document data expanded by the compression/expansion processing section 8 to the scanner/printer I/O. The receipt is received and printed via F6.

That is, a document read from the scanner 5 is converted into document data, temporarily stored in the image memory 7, compressed and
The data amount is compressed by the decompression processing unit 8 and stored in the 0DD 10 via the disk I/F 9.

When a document to be searched is specified using the keyboard 1 or the mouse 2, the compressed document data is read from the ODD 10 into the image memory 7.

The compression/decompression processing unit 8 expands the amount of data and converts it to C.
Display on RT14.

However, the reference value may be stored in the ROM or RAM in the CPU, the image memory 7, or other memory.

Further, this reference value may be freely rewritten by inputting from the keyboard 1 or the like.

Next, the process of determining the necessity of display by the CPU 4 will be explained with reference to the flowchart shown in FIG.

First, the compressed document data read from the 0DDI Q is stored in the image memory 7, and the data amount of the first page is detected by the compression/expansion processing unit 8 (normally detected from the address value of the dedicated LSI) and read. .

Then, the data amount is compared with the set standard value, and if it is less than the standard value, the compressed document data of the first page is decompressed by the compression/decompression processing unit 8 and displayed on the CRT 14, and if it exceeds the standard value, it is displayed. do not.

Then, it detects the amount of data on the next page, loads it, compares it with the standard value, and displays it if it is less than the standard value.

If it exceeds the standard value, it will not be displayed.

In this way, the amount of data for each page of compressed document data is detected and compared with the set standard value.

If it is less than the standard value, it is displayed on the CRT 14, and if it exceeds the standard value, it is not displayed, and when the last page is completed, the process is finished.

Note that, contrary to the above, it is also possible to display only pages whose data amount exceeds a reference value.

By the way, the document has a title, as shown in Figure 4.

Table of Contents Chapter 2 titles, graphs/explanations with graphs.

There are pages that contain tables, summaries, explanatory texts, etc., but if you compress the amount of data on these pages, the title will appear.

Pages with a small number of characters such as the title and summary of Chapter 2 of the Table of Contents, as well as pages with tables, graphs/explanations with graphs, etc., generally have a smaller amount of data than pages where only text is written on the entire page.

Therefore, for example, if you set the absolute value of the data amount of a page with a large number of characters in the document as a reference value, and display only the pages with the data amount less than this reference value, you can set the title, table of contents, chapter 2, etc. There is a high probability that a page with a title, graph/explanatory table with graph, summary, etc. will be automatically selected and displayed.

In addition to the absolute value, this reference value may be an average value of the amount of data of each page in the document, or a value using a statistical method such as a variance of the amount of data.

〔Effect of the invention〕

As explained above, the document filing device according to the present invention automatically displays files from retrieved documents.

Since you can find and display important pages that contain graphs and summaries of documents, you can efficiently perform tasks equivalent to so-called diagonal reading, which involves checking the contents and getting an overview of the text or book. .

[Brief explanation of drawings]

FIG. 1 is a functional block diagram showing the basic configuration of this invention. FIG. 2 is a block diagram showing the configuration of an embodiment of a document filing device according to this invention. FIG. 3 is a functional block diagram showing the basic configuration of the present invention. FIG. 3 is a flow diagram showing a process for determining whether each page of a document needs to be displayed. FIG. 4 is an explanatory diagram showing the difference in data amount depending on the content of the document page, and FIG. 5 is an explanatory diagram of the page turning display function in a conventional document filing device. 1... Keyboard 2... Mouse 3... Keyboard/mouse I/F 4... CPU 5... Scanner 6... Scanner/printer I/F 7... Image memory 8... Compression/expansion processing section 9.
...Disk I/F 10...Optical disk device (ODD) 11...Hard disk device II (HDD) 12...
... Floppy disk device (FDD) 13 ... Image processing section

Claims (1)

[Scope of Claims] 1. A data compression/expansion means, a data storage means, and a display means. In the document filing device, the compressed document data read from the data storage means is decompressed page by page by the data compression/decompression means and displayed by the display means, each of the compressed document data read from the data storage means. a data amount detection means for detecting the amount of compressed data for each page; a reference value setting means for setting and storing a reference value for the compressed data for each page; and compressed data for each page detected by the data amount detection means. display necessity determining means for determining whether or not to display each page by comparing the quantity with the reference value set by the reference value setting means; A document filing device characterized in that only document compressed data of pages determined to be displayed are sequentially expanded by the data compression/expansion means and displayed by the display means.