JPH0740269B2 - Document matching device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention uses a large-capacity storage device such as an optical disk device to convert paper surface information such as printed matter into raw or character information and stores it. Related to a document filing device, and more specifically, an auxiliary function (utility) used to find out a virtual location of a document when extracting a stored document.
Regarding

[Conventional technology]

When searching a document filing device that does not store any substance, such as a patent search, a method is adopted in which a plurality of pieces of semantic information such as keywords are input and the device automatically reaches the target document. ing. But,
It is known that when searching a document that has a memory once seen, such as a catalog or a self-made document, it is easier to assume a rough location based on the memory and flip the pages around it. In such a case, conventionally, it is general to completely display one page of a document and then display the next page in the same manner.

[Problems to be solved by the invention]

When displaying a document on the document filing device, the compression information code (for example, MH code, MR code, etc.) of the document page image stored in the optical disk device or the like is read,
It is necessary to reproduce the document page image on the memory by decoding it by the encoding / decoding circuit and display it on the display means such as CRT. In this case, it takes about 20 to 60 Kbytes of data to decode one page, which takes about 1 to 5 seconds.
Therefore, even if you simply flip the pages while looking, like flipping a page
Since the whole page is displayed one after another, there is a problem that it takes a long time.

An object of the present invention is to provide an easy-to-use document filing device by speeding up the so-called page turning operation in a document filing device using an optical disk device or the like.

[Means and Actions for Solving Problems]

The present invention provides a means for storing layout information of a document page and the like as a characteristic index at the time of storing a document, independently of the substance of the document, and generates and displays a temporary screen very similar to the substance from the characteristic index. By doing so, for each page in the document, a large number of schematic screens can be displayed in page order and at high speed.

〔Example〕

FIG. 1 shows an embodiment of a document filing apparatus of the present invention, in which 1 is an optical disk device, 2 is a magnetic disk device, and 3 is a magnetic disk device.
Is a microprocessor, 4 is a RAM, 5 is a compression code decoding circuit, 6 is a bit map frame memory, 7 is a character frame memory, 8 is a CRT display device, 9 is a keyboard, 10 is a voice generator, 11 is a switching circuit, 12 is a speaker. MR-encoded (compressed-encoded) data of a document is stored in the optical disk device 1 by a known method, and the magnetic disk device 2 stores a keyword index classified by a known method and a characteristic index adjacent to the keyword index. Has been done.
The characteristic index is, for example, Japanese Patent Application No. 60-20963.
The one shown in No. 0 is used. Further, the RAM 4 stores a program for performing the following operations.

Document Selection Generally, in a document retrieval operation, it is necessary to notify the system of a higher classification information word (keyword) such as a binder number or a cabinet number based on some brain memory information, but in the present embodiment, it is input from the keyboard 9. To do. A pointing element such as a mouse may be used as the input means for inputting the upper classification information.

The CPU 3 searches the magnetic disk device 2 for a storage keyword equal to this input keyword, and generally selects the largest one from a plurality of relevant document numbers. It should be noted that the largest one is selected when it is desired that the most recent document comes out first, and in other cases, an appropriate one may be selected according to each algorithm.

All index information following the selected document number
It transfers to CPU3, and CPU3 processes this index information as follows.

Index Separation Since the index of this embodiment includes both a normal keyword and a characteristic index, the former is CR as a character.
It is displayed on the T screen, and the latter is used to generate a temporary screen as follows.

Interpretation of Index One of the features of the document page is the structure of the index.
No. 209630, the outline will be described with reference to FIG. In the figure, the manuscript is the A4 size on the Nth page, about 1/3 of the page space is text (character string area), the lower left is a line figure, the lower right is a photograph, and a blank is included on the right side. . Such a characteristic index of the Nth page is described as index (N) = X / CCCXGP / SSGG, and expresses the outline of the page according to the following rules.

First, the symbol "X" does not mean that the A4 page is not composed of one kind of element, but is composed of two or more kinds of elements such as a text C and a photo P, a drawing G and a margin S. is doing. "CCC" indicates that the first to third areas of the paper are text, and "G" and "P" indicate that the fifth and sixth areas are figures and photographs, respectively. There is. Further, the sixth symbol "X" from the beginning suggests that the fourth area is composed of a plurality of elements, and details are foretold to be displayed by tracing the index further to the right. The last "SSGG" means that the fourth area is composed of blanks and photographs. symbol"/"
Although it can be interpreted even without, it is added as a layer delimiter for speeding up the process.

Display of Interpretation Result In the above-mentioned interpretation rule, since the space of the paper is limited to four kinds of elements, four kinds of patterns should be displayed. Considering that the purpose of displaying this screen is only to notify the operator of the appearance of the page, the position resolution in the page is approximately 5 m in both vertical and horizontal directions.
If you convert it to the length and width of A4 in m, it will be 60 pieces x 40 each.
It can be said that there are enough pieces. This just corresponds to the resolution of character display and means that the appearance of the paper can be displayed on the character frame memory 7 and the CRT display device 8. After that, character frame memory 7
The combination of CRT display device 8 and CRT will be referred to as the character CRT.

Unlike the bitmap CRT, the character CRT is not a 1-bit storage element for each pixel on the CRT, but a 1-byte (8-bit) storage element for each character area (35-4K pixels) on the CRT. Has been done. Therefore, as compared with the bitmap CRT, there is an advantage that the entire surface rewriting (updating) operation of the CRT screen can be made extremely fast.

Therefore, the interpretation result of the characteristic index is displayed by arranging appropriate character patterns on the character CRT as if a sentence is displayed. That is, in the text area
In the JIS Kanji code table, for example, 91 points in the 1st ward, "○", 31 points in the 1st ward, "/" in the graphics area, 1 point in the 2nd ward in the photo area, "◆", blank area "" (Blank character) is assigned to and the area is filled with these character patterns. At this time, there are many combinations of the four types of patterns to be used, but it goes without saying that when the character CRT is looked at from a distance, a character that matches the average density of each region of the original document should be used. FIG. 3 is a display example on the character CRT of the temporary screen corresponding to the original document of FIG. 2 generated in this way.

Display Control The temporary screen is displayed as described above, but since this screen requires an operation corresponding to flipping, the following update control is required.

As described above, the first step of the desired document retrieval operation is the input of higher-level classification information based on brain memory. Generally, a hierarchy corresponding to a binder, up to a hierarchy of about 300 pages with keywords Reachable relatively easily. If the first half, the middle, and the second half can be identified from the brain memory, it is possible to narrow down to about 100 pages. Therefore, flipping
It is necessary to be able to move forward and backward freely and quickly within 100 to 300 pages. Now, if the amount of the characteristic index that expresses one page is 48 bytes / page, 300
The characteristic index for a page is about 14K bytes, and this value means that if the available area of RAM4 is 100K bytes, the characteristic index for several binders can be stored in the RAM that can be accessed at high speed. .

Therefore, first, the characteristic index of the binder layer designated by the operator from the keyboard 9 or the like is the entire one binder,
Read from the magnetic disk device 2 and RAM4 via CPU3
To store. Next, the display program running on the CPU 3 interprets the characteristic index data, generates a corresponding provisional screen and sends it to the character frame memory 7, and displays the first page of the binder on the character CRT. The operator who sees this generally presses and holds the "next page" key. When the keyboard 9 keeps pressing the key, for example, the key code is generated at intervals of 0.1 seconds, so that the CPU 3 stores the RAM 4 in the RAM 4 every time it receives the "next page" key code (next page update command) at intervals of 0.1 seconds. The characteristic index of the next page in the middle is interpreted, a corresponding provisional screen is generated and sent to the character frame memory 7. In this case, flipping is possible at a maximum speed of 10 pages / second. When the operator keeps pressing the "previous page" key and the CPU3 continuously receives the "previous page" key code (previous page update command), the backward flipping can be performed in the same manner.

Actual screen display By the way, the operator eventually reaches the target document. At that time, the key should be released, so if neither the "next page" or the "previous page" key code (page update command) is received, the CPU3 generates a real screen.
Display operation starts. That is, the compression information of the document page image is read from the optical disc device 1, the document page image is reproduced by the compression encoding / decoding circuit 5, transferred to the bitmap frame memory 6 and displayed on the CRT display device 8.

In this case, it is too late for the control program to start after knowing that the reception of the key code has been stopped.
It is necessary to issue in advance the transfer start command of the actual screen data to and the operation start command to the compression code decoding circuit 5. At this time, while the display of the temporary screen continues, the switching circuit is connected to the character frame memory 7 to prohibit the display of the actual screen, and the CPU 3 stops the reception of the key code.
Upon knowing that, the switching circuit 11 is connected to the bit map frame memory 6 by the instruction of the CPU 3 and the display is switched to the actual screen. Further, if the "next page" key code is continuously received at intervals of 0.1 seconds, the decoding of the actual screen by the compression code decoding circuit 5 is also started at intervals of 0.1 seconds. Starts the decoding of the next page real screen after performing the abort operation during the decoding.

Therefore, the CPU 3 can immediately issue an instruction to switch to the real screen display when it knows that the page operation key code has stopped. However, the stop of the key code can be detected, for example, in about 0.7 seconds after the hand is released from the key, but the decoding of the actual screen is often not completed at this time. In this case, since it may be incomplete (for example, only the upper half), it is possible to sufficiently judge whether or not it is a human being, and it is possible to judge whether or not the document is a desired document while the screen restoration is in progress.

Other Embodiments In the embodiment shown in FIG. 1, the bitmap frame memory 6 and the character frame memory 7 are displayed in the real screen display and the temporary screen display.
Although it was decided to switch, the same applies when using a character-only CRT, and remote operation is easy. Needless to say, the use of a dedicated character font or a dedicated screen pattern generation circuit further enhances the effects of the present invention. Of course, it is also possible to display a plurality of pages on one display device.

Furthermore, if the outline of the example document is input prior to flipping, the operator is alerted by controlling the pitch of the voice and the brightness of the screen according to the similarity between the example document and the document being displayed. It is also possible. In FIG. 1, the voice generating device 10 and the speaker 12 are used in such a case.

To adjust the page turning speed, a rotary dial instruction key or a mouse is effective, and page turning below the CRT frame frequency (about 30 Hz) is possible.

〔The invention's effect〕

As described above, in the document filing apparatus of the present invention, page turning is extremely fast, and in a document whose location is limited to a certain range, it is possible to easily reach a target document by flipping. There are advantages.

In addition, since the appearance of a document can be expressed only by a character pattern, for example, even in a terminal device that does not have a bitmap display connected to a LAN (local area network), the appearance information can be used for document retrieval.

Furthermore, even when looking for a document whose range is difficult to identify,
In addition to the conventional search using a keyword index, a search using a feature index is easy. Therefore, using both in combination has the advantage of increasing the search speed.

These advantages are often associated with the high power of electronic file systems, given that humans often capture and use both non-verbal information extracted from it and further extracted linguistic information to remember and think. It can be said that it is extremely effective for convenience.

[Brief description of drawings]

FIG. 1 is a block diagram of an embodiment of a document filing apparatus of the present invention, FIG. 2 is a diagram showing an example of a characteristic index of a document surface, and FIG. 3 is a display example of a temporary screen according to the present invention. 1 ... Optical disc, 2 ... Magnetic disc, 3 ... Microprocessor, 4 ... Random access memory, 5 ...
Compression encoding / decoding circuit, 6 ... Bitmap frame memory, 7 ... Character frame memory, 8 ... CRT display device, 9 ... Keyboard, 10 ... Voice generating device, 11 ...
Switching circuit, 12 …… Speaker.

Claims (1)

[Claims] 1. A document information storage means for storing document information,
A keyword / index information storage unit for storing the keyword / index information of the document information; an input unit for inputting the index information; and a display unit, wherein the keyword / index information corresponding to the input index is the keyword / index information. In a document filing device that obtains the document information from the document information storage unit based on the keyword / index information and displays the document information on the display unit, a feature index indicating the characteristics of each page of the document information. A characteristic index information storage means for storing information is provided, characteristic index information corresponding to an input index is obtained from the characteristic index information storage means, and a document consisting of N pages is obtained using the obtained characteristic index information (N is a natural number). And issue a page update command Synchronizing or preceding to interpret the characteristic index information to generate an element screen, two-dimensionally combine and display the element screens, and synchronize or precede the page update command from the document information storage means. A document filing device which reads out document information and displays a document entity.