JPS63278132A - Display control method for file system - Google Patents

Abstract

PURPOSE:To quickly display a document number and a page number on a display device if forecast comes true, by forecasting the document number and the page number of next display candidates based on the displayed document number and page number and preliminarily transferring them to an image memory from a medium. CONSTITUTION:Image data in a frame memory is displayed on a display device 6 by operator's instruction, and processing is performed in the background while the operator confirms this data. This processing is a learning processing to determine a selecting rule of next display candidates, and document and page numbers of next display candidates for data displayed at present are calculated in accordance wit this selecting rule. Image data of next display candidates is reproduced from an optical disk 13 and is stored in an image memory 11 by the background. Since image data of document and page numbers for the next display command is prepared in the memory 11, data is supplied to the display device 6 without reproducing operation of an optical disk device 12. Thus, designated data is projected after a slight latency time.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application This invention relates to a file system using a recording medium such as an optical disk, and in particular, to a file system that uses a recording medium such as an optical disk, and in particular to a method for quickly displaying image data of one designated page among a large amount of document information. This invention relates to a display control method.

Conventional technology For example, in electronic file systems that handle document information such as patent technical documents, a collection of multiple pages of image data is
One document module (also simply referred to as a document) is defined, and document files are organized using this document module as a unit of management.

When an operator retrieves certain image data from a document file (using an optical disc as a recording medium) and wishes to display it, he or she instructs the corresponding document number and page number using a keyboard or the like. Further, the document number and page number may be indirectly designated as a result of the search process.

When the document number and page number are specified, the optical disk device operates to reproduce the corresponding image data and store it in the image memory. Since compression-encoded image data is recorded on the optical disk, the image data taken out to the image memory is then decoded and transferred to the frame memory of the display for display.

Problems to be Solved by the Invention Conventionally, there has been a problem in that it takes a long time after the document number and page number to be displayed are specified until the corresponding image data is actually displayed on the display.

Of the time it takes to display designated image data, a large portion is taken up by the process of reproducing the data from a medium such as an optical disk and transferring it to the image memory. Although much research is being carried out on organizing systems for document files that can be accessed at high speed and on increasing the speed of hardware such as optical disk devices, the above-mentioned complaints cannot be resolved when it comes to document image data that contains a large amount of information. Not yet.

This invention was made in view of the above-mentioned conventional problems, and its purpose is to provide a display control method that can quickly display one designated page of image data on a display. be.

Means to Solve the Problem Therefore, in the present invention, when specified image data is displayed, the document number and page of the next display candidate are selected based on the document number and page number according to a predetermined selection rule. A number is determined, and the image data is played back from the medium in the background and stored in the image memory. Then, when a document number is specified next time, it is determined whether it is the same as that of the next display candidate, and if it is the same, the corresponding image data in the image memory is displayed. Furthermore, the transition of designated document numbers and page numbers is analyzed and statistically processed, and the "-" selection rules are updated as needed based on the results.

Operation In the method of the present invention described above, the document number and page number that will be designated for display next (that is, the next display candidate) are predicted from the document number and page number currently being displayed, and the predicted image data is is transferred from the medium to the image memory in advance.

If the prediction is correct, the image data is already prepared in the image memory and can be displayed immediately.

The above prediction method (selection rule described above) includes, for example: ■ The page next to the currently displayed page is the next display candidate, ■ The first page of the next document number of the document module to which the currently displayed page belongs. Various methods are possible, such as setting the page as the next display candidate.

The actual selection rule to be adopted is determined by learning how the electronic 7airnstem is specifically operated by the user. As a result, 6 units are available depending on the operational status of each individual system.

In addition, the next display candidate is determined based on the prediction method that has the highest probability of being correct.

Embodiment FIG. 1 shows the overall schematic configuration of an electronic file system. The display 6 and keyboard 7 constitute a so-called workstation. The image information of the original is read by the scanner 8, encoded by the codec 10, and sent to the optical disk device 12 via the image memory 11.
and filed on the optical disc 13. The document files organized by the optical disk device 12 have document modules as management units, and one document module includes multiple pages of image data.

For example, when a display command is given by directly specifying the document number and page number using the keyboard 7, the optical disk device 1
2 operates and the corresponding image data (
1 page) is reproduced and stored in the image memory 11. Image data in image memory 11 is codec 1
0 and supplied to the display 6, stored in a frame memory (not shown) and displayed. Also, codec 10
The image data decoded can also be supplied to the printer 9 and printed. Note that the same applies when a document number and a page number are specified as a search result and the image data is displayed on the display 6.

The above is the same basic configuration and operation as before.

In addition to this, the present invention performs display control as described below.

Hereinafter, a display control method according to an embodiment of the present invention will be described in detail according to the flowchart shown in FIG.

First, in step 100, a search instruction is received from the operator, and in step 101, the search results are displayed. The operator refers to the displayed search results and in step 102 instructs the document number and page number that he/she wishes to actually display.

In the next step 103, it is determined whether the image data corresponding to the document number and page number specified in step 102 has already been stored in the image memory 11. If there is corresponding image data in the image memory 11, the process proceeds to step 104, where the image data is read out from the memory 11, decoded, and transferred to the frame memory of the display 6. If there is no corresponding image data in the memory 11, the process proceeds to step 105, in which the corresponding image data is reproduced from the optical disk 13, stored in the memory 11, read out from the memory 11, decoded, and transferred to the frame memory of the display 6. .

In the next step 106, the image data in the frame memory is displayed on the display 6.

In the next step 110, background processing occurs while the operator reviews the displayed image data. First, step 107 is a learning process for determining the selection rule for the next display candidate. The details of this process will be described later, but here, for example, ``Set the next page number with the same document number as the one currently displayed as the next display candidate.''
Suppose we decide on the selection rule. In the next step 108, the document number and page number of the next display candidate for the currently displayed data are calculated according to this selection rule. In the next step 109, the image data of the next display candidate is reproduced from the optical disc 13 in the background and stored in the image memory 11.

After the above processing, the process returns to step 102 and waits for the document number and page number of the next display command to be specified. Then, the document number that was commanded to be displayed next.

If the image data of the page number is prepared in the memory 11, the image data in the memory 11 is decoded and supplied to the display 6 without operating the optical disk device 12, so that the specified data can be read with a short waiting time. The data will be displayed.

Next, the content of the above learning process will be explained. Here, the transition of the document number and page number actually specified by the operator is analyzed, and the number of occurrences of each of the following four patterns is counted.

- When the next page in the same document module is specified for the one currently displayed, the counter C1 is incremented.

(2) When the previous page in the same document module is specified next for the one being displayed, the counter C10B72 is incremented.

(2) When the first page of the document module with the next document number is specified next for the one being displayed, the counter C3 is incremented.

■ If the first page of the document module with the previous document number is specified next for the one being displayed, counter C4 is incremented. Counters C1 to C4 should be initialized at the start of system operation, and then The operation status of is accumulated in counters C1 to C4.

In the previous step 107, the pattern that actually occurred is first analyzed and the above counting process is performed, and then the count values of counters C1 to C4 are compared and the largest one and the second thickest one are selected. .

Then, the two patterns whose count values are 1 and 2 are predicted to be the patterns with a high probability of occurring next, and these two patterns are used as the ``next display candidate selection rules'' mentioned above. . In this embodiment, step 108. At step 109, image data for the next display candidate for two pages is prepared in memory 1-711.

As described in detail in ``Effects of the Invention'', according to the display control method of the present invention, rules for selecting the next display candidate are determined through a learning process based on the actual operating status of each system, and the selection rules for the next display candidate are determined according to the rules. The next display candidate for the object is determined in advance, and the image data is played back from the recording medium in the background and stored in the image memory.
When the prediction is correct, it is enough to read the corresponding image data from the image memory and display it, and in that case, the waiting time in the trench where the display appears is extremely short, and the overall waiting time on average is shorter than before. Ru.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing a schematic configuration of a file system, and FIG. 2 is a flowchart showing a display control method in a file system according to an embodiment of the present invention. 6...Display,]1...Image memory, 13
···optical disk. Name of agent: Patent attorney Toshio Nakao and 1 other person No. 1
Figure 2

Claims (1)

[Claims] When displaying one page of image data in a file system in which one document module is defined as a collection of multiple pages of image data and many document modules are stored in a recording medium, a specified document The image data of the specified page of the module is reproduced from the above medium, stored in the image memory, and displayed, and the next display is performed according to a predetermined selection rule based on the document number and page number of the image data being displayed. The candidate document number/page number is determined, the image data is played back from the above-mentioned medium in the background and stored in the above-mentioned image memory, and the next time the document number/page number is specified, it becomes the above-mentioned next display candidate. If the image data is the same as that of A display control method in a file system characterized by updating selection rules as needed.