JPS59212971A - Image data producer - Google Patents

Abstract

PURPOSE:To shorten the conversion time by attaining the storage and rewriting of image data and using the frequencies of said actions as elements. CONSTITUTION:When the source data is supplied to a retrieving means 1, a table 2 is retrieved to discriminate whether or not the image data corresponding to the source data is stored in an external memory such as a disk 4, etc. If the image data is stored, an image data means 3 is actuated to read out the image data and display it to a display part 5. If no image data is registered, the table 2 is referred to check the store area of the image data. Then the image data is produced when its store area exists. Thus the image data is written to the disk 4, and at the same time the code of the image data is registered. If no area exists for writing, the using frequency of the registered code is checked. Then the image data corresponding to the code having the minimum using frequency is erased and written to the disk 4. The source data of the image data, the using frequency and the control information are registered to the table 2.

Description

[Detailed description of the invention] Technical field The present invention relates to an image data creation device.

PRIOR ART In general, a data processing device that can manage numerical and character data, process it as necessary, and output and collate it in the form of a table or graph, or a word processor that edits and prints text input from a keyboard. In various processing devices such as the above, flexibility in display or print formats and ease of editing are required.

Numerical values, characters, graphic data, etc. can be displayed or printed only after they are converted into image data corresponding to the pixels of a display or printer and then synthesized in an image storage area such as a RAM. However, image data is generally several hundred times larger than original (code) data, and it would take an enormous amount of time if it had to be stored in memory each time it is processed. Therefore, it is necessary to shorten the processing time and store image data to be outputted in a memory according to an appropriate frequency of use.

Purpose The present invention is proposed in view of these problems,
An object of the present invention is to propose an image data creation device that can store and rewrite image data, perform these operations based on frequency, and shorten processing time.

Embodiment FIG. 1 is a functional block diagram expressing in block form the functions performed by the embodiment. When original data is input to the search means 1, a table 2 is searched and image data corresponding to the original data is retrieved. For example, it is determined whether the data is stored in an external memory such as disk 4 or not. When stored,
The image data reading means 3 is activated to read image data and display it on the display section 5'. On the other hand, if the image data corresponding to the original data is not registered as a result of referring to Table 2, it is checked whether there is a storage area for the image data by referring to Table 2, and if there is, the image data is created. , this is written to the disk, and the code of the image data is registered in table 2. Also, if there is no area to write image data,
The usage frequency value of the code registered in the table is searched, the image data corresponding to the code with the least usage frequency is deleted from the disk, and the information corresponding to the code is deleted from the table. Next, the image creation means 6 is activated, image data is written onto the disk 4, and the original data, usage frequency, and management information of the image data are registered in the table.

The image creation device described above can be configured as shown in FIG. In the figure, 10 is a central processing unit (hereinafter referred to as CPU), and 13 and 14 are a display (hereinafter referred to as DSP) and a printer (hereinafter referred to as PRT), respectively. The CPU 10 uses the main storage device 12 (hereinafter referred to as RAM) as an image editing area in order to output image data to the DSP 13 or PR 714, and also uses the external storage device 15 (hereinafter referred to as RAM) to store original data and image data.
(hereinafter referred to as DSK) is used. Note that instructions for editing operations are given through the operation console 16 (hereinafter referred to as TW).

Figure 3 shows the management table and DSK stored in RAM 12.
The relationship between image data stored in I5 is illustrated.

In the figure, 18 is original data such as numbers, characters, figures, etc.
Reference numeral 19 indicates usage frequency data indicating the frequency of use of image data corresponding to the original data, and reference numeral 20 indicates management information of the image data stored in the external storage device. That is, the management table includes original data 18, usage frequency values 19, and management information 20.
It becomes more. 21 is image data, DSK 15
As mentioned above, the management information 20 is used in the management table to read this information. When image data converted from the original data is required, this management table is searched and the corresponding image data is stored in the DSK.
If it is stored in I5, it can be read out and used immediately. If not, image data is created and stored in the DSKI 5, and its original data 18, usage frequency 19, and management information 20 are registered in the management table. When trying to store image data in DSKI5, the DS
If the image data storage area of KI5 is insufficient, the usage frequency value 19 of the management table is checked and image data that is used less frequently after registration is deleted.

FIG. 3 is a flowchart showing the processing procedure of the image data conversion program. This program is stored in the read-only memory 17. The operation when creating a document consisting of Japanese text and vector graphics will be explained below. In FIG. 2, when a Japanese word is input from the TW 16, original data consisting of JIS code is first created.

Image data is created or read out from this original data on the RAMZ and displayed on the DSP 13.

When vector figure information is input from TW6, first the original data of the vector figure is created, and from this original data, the image data is R
is created or read out on the M2, combined with the original text, and displayed on the DSP3. The DSK 1 5 stores Japanese words and image data of unit parts of vector graphics, and is reused as necessary. Furthermore, DSK
The overflow of the image data storage area in No. 5 is avoided by erasing image data that is used less frequently.

Now, in the flowchart of FIG. 4, in step S1, the original data section 18 of the management table is searched from the original data. In step S2, if there is image data of the original data, the image data is read out in step SIO, and the usage frequency section 8 of the management table is counted up in step S11, and the process reaches the end.

In step S2, if there is no image data of the original data, image data is created in step s3, and in step S4 it is checked whether there is a storage area for the image data in DSKI 5. If there is no image data, it is managed in step S5. The usage frequency 8 in the table is searched, and in step S6, the image data with the least usage frequency is deleted from the DSKI 5, and in step S7, the corresponding information is deleted from the management table.

In step S4, if there is a storage area for image data,
Control moves to step s8, and the new image data is transferred to D.
Write registration to SK5. In step S9, correspondence information is registered in the management table, and the process reaches the end.

Effects According to the present invention, by using a management table for original data such as numerical values, characters, figures, etc. and converted image data, when converting the original data into corresponding image data, it is possible to store the original data in an external storage device while taking into consideration the frequency of use. You can save as much image data as possible and reuse it.

Furthermore, even if the capacity of the external storage device exceeds the capacity, by erasing image data that is used less frequently, rewriting can be minimized and conversion time can be shortened.

[Brief explanation of the drawing]

FIG. 1 is a functional block diagram showing the functions performed by a typical embodiment of the present invention; FIG. 2 is a block diagram showing the configuration of the embodiment; FIG. 3 is a diagram showing the relationship between the management table and image data; FIG. 4 is a flowchart showing the procedure for converting and registering original data into an image database. Here, 18...original data, 19...frequency value, 20
... Management information. Figure 1 Figure 2 1/3rd day 1 Figure 4 510 11

Claims (1)

[Claims] If the capacity of the external storage device exceeds the capacity of the external storage device when storing newly created image data, delete the image data that has already been stored from the external storage device in order of least usage frequency. An image data creation device that stores the newly created image data.