JPS59178880A - Device for storing and retrieving picture information - Google Patents

Abstract

PURPOSE:To utilize the storage capacity of an optical disc without waste even if picture information and its retrieved data length are an undefined length by storing the picture information from the head address of a storage device and storing its managing information from an end address or storing it conversely. CONSTITUTION:A CPU12 reads a data from an IPA storage area 19a and an MPA storage area 19b on an optical disc 19 by using an optical disc device 22, the newest IPA (picture storage head address) and the MPA (retrieved data storage end address) are stored respectively in storage areas 18a, 18b in an RAM18, reads the retrieved data on the optical disc 19 and stores it into the RAM18. When compressed information for one page's share is stored in a page buffer 14, the CPU12 calculates the length of the picture information by the last address of the buffer 14 and subtracts the result of calculation l from the content of the IPA storage area 18a (HA). The CPU12 forms the retrieved data to be registered by the retrieved code and the HA, calculates its length M, and the result of addition of the length M and the content of the MPA storage area 18b (MPA+M) and the HA are compared. When the (MPA+M) is smaller than the HA, the occupancy is displayed by a display device 24.

Description

Detailed Description of the Invention This invention stores image information such as a document and management information for each image information on an optical disk, and retrieves the image information stored on the optical disk using search data in the management information. The present invention relates to an image information storage and retrieval device for searching and reading.

[Technical background of the invention]

Generally, as a method of storing image information and management information on an optical disc, the storage area of the optical disc is divided into two parts in advance, and the image information is stored sequentially from the first storage address of each. At this time, when storing the image information, the button and image information are compressed and stored in order to save the storage area.

[Problems with background technology]

However, in the above-mentioned devices, the length of the stored image information is completely different from the original image information, and the length is unequal, because the original image information is compressed using the Modified Hoffman method. Put it away. For this reason, it is extremely difficult to determine the necessary area for storing image information in advance, and if the storage area is divided into two areas, one for image information and one for management information, one of the storage areas will become full. However, there is a problem in that the storage capacity of one storage area is wasted because there is a situation where the storage area of one storage area is sufficient even though the storage area of the other storage area is sufficient.

[Purpose of the invention]

The present invention has been made in view of the above circumstances, and its purpose is to provide an image information storage and retrieval device that can use the storage capacity of a storage device without wasting it.

[Summary of the invention]

This invention stores image information from the start address of a storage device and stores its management information from the end address, or stores management information from the start address and stores the image information from the end address. It is.

[Embodiments of the invention]

An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 shows the configuration of an image information storage and retrieval device according to the present invention. In other words, 1 is a main control device, which includes a CPU 12 that performs various controls, a main memory 13, and a panzer memory, such as a base buffer, which has a storage capacity corresponding to at least one unit of image information (original page). 14
, a compression/expansion circuit 15 that compresses (reduces the redundancy) and expands (restores the reduced redundancy) image information.
, a 1,000-turn generator 16 in which pattern information such as characters and symbols is stored, a display interface 17, an image buffer 27 that stores image information for a two-dimensional scanning device 20 (described later), and an optical disk device 22 (described later).
It is comprised of a RAM (Random Access Memory) 18 and the like that stores management information, ie, search data, read from the optical disk 22.

The CPU 12 has processing means for storing or retrieving information on the optical disc 19, which will be described later. Above RA
M1B is provided with an IPA storage area 19a1 for storing an image information storage start address (IPA) of the optical disc 19 and an MPA storage area 19k for storing a management information storage end address (MPA) of the optical disc 19, which will be described later.
AM 1 B is pack-amplified by a battery 28. 2θ is a reading device, such as a two-dimensional scanning device, which scans the original (document) 21 two-dimensionally with a laser beam to obtain an electrical signal corresponding to the image information on the original 2Z. Reference numeral 22 denotes an optical disk device which sequentially stores image information read by the two-dimensional scanning device 20 and supplied via the main control device 1 and its search data on the optical disk I9.

As shown in FIG. 2, the optical disc 19 has a donut-shaped metal coating layer such as tellurium or bismuth coated on the surface of a circular substrate made of glass or plastic, for example. A notch tab reference position mark 19c is provided near the center of the layer. Also, on the optical disk 19 is a base position mark 19. In this example, the data is divided into 32 sectors from 0 to 31, with ``O'' being the number of sectors.

Further, as shown in FIGS. 2 and 3, the optical disc 19 stores a plurality of image 1 information storage start addresses (IPAs) in the innermost track. IPA storage area 19a
% The outermost track is provided with an MI'A storage area 19b in which a plurality of management information storage end addresses (MPAs) are stored.

On the other hand, 23 is a keyboard 9 for inputting instructions (processing information) such as registration or search of a unique search code corresponding to image information and various operation commands. Here, the key beads 2 and 9 and the two-dimensional scanning device 2o constitute an input device for image information and its search code.

24 is an output device such as a cathode ray tube display device (hereinafter referred to as a CRT display device) which is a display section;
It displays image information read by the two-dimensional scanning device 2o and supplied via the main controller 11, or image information read from the optical disk device 22 and supplied via the main controller 11. The display interface 17 in the main control device 11 constitutes a significant image information display device. Reference numeral 25 denotes a storage device that stores image information read by the two-dimensional scanning device 20 and supplied via the main controller 1, or images read from the optical disk device 22 and supplied via the main controller 1. Information etc. are output as a hard copy 26.

As shown in Figure 4, the above search data includes a direct number as a unique number to be placed on the neck for each image information, gender,
A search code consisting of multiple search keys such as employee number and name, and image information corresponding to this search code, the number of image storage sectors on an optical disk, and track number A-ADH and sector number S-ADH as the start address of one image data. , and a storage address consisting of image size S.

Next, the operation in such a configuration will be explained with reference to the flowchart shown in FIG.

First, to explain the registration (storage) of image information, select the key date 23 registration mode and enter the search code for the image information to be registered. For this, CPU
12, the susceptibility of the input card is checked (cyclic redundancy check, CRC) according to the predefined search code formant, number of digits, character type, etc., and already registered search codes are checked. However, checks are performed to ensure that there is no double registration, and if the search code is correct as a result of these checks, it is stored in the main memory 13. Then, set the original on the two-dimensional scanning device 20,
The CPU 12 operates the optical disk device 22 and the two-dimensional scanning device 2°. Accordingly, the CPU 72 uses the optical disk device 22 to read data from the IPA storage area 19a and MPA storage area 19b on the optical disk 19, and stores the latest IPA (image information storage start address) and MPA (search data). storage end address) in the storage areas 18ar18b in the RAM 1B, and read out the search data on the optical disk 19.
It is stored in RAM l8. Then, the two-dimensional scanning device 20 two-dimensionally scans image information such as a set document, and performs photoelectric conversion. The photoelectrically converted line information is sequentially stored in the image buffer 27. When the image information of the nobleman is stored in this image buffer 27, the image information is stored in the display interface 17, and the image information is displayed on the CRT display device 24. However, if the image displayed on the CRT display device 24 is satisfactory, a recording key (not shown) is pressed. Then, the CPU 12 performs multi-band compression on one unit of image information stored in the image buffer 27FC for each line information using a compression/decompression circuit 1.5 using a well-known MH (modify 9/Hoffman) conversion button. Then, when your compressed information is stored in the beno buffer 14, the CPU 12
The length of the image information at the final address is calculated, the calculation result t is subtracted from the content of the IPA storage area 18a of RAM 1B, and the result of the subtraction is set as HA.

Next, the CPU 12 creates the above search code and the data to be registered with the HA, calculates its length I4,
This calculation result M and MPA storage area 1 of RAM 1 B
Compare the result of adding the contents of 8b (MPA + M) and HA. Accordingly, the CPU 12 (MPM +
If M) is smaller than HA, it means that the memory is full, so the CRT display device 24 displays the message ``Optical disk is full.'' Also, C.P.
U12 is the second if (MPA 10M) is greater than HA.
As shown in FIG. 3 and FIG.
The search data is stored in the A+1 address.

When this storage is completed, the CPU l2 is transferred to the RAMI,!
? The contents of the IPA storage area 18a and MPA storage area 18b are updated to new addresses, and
IPA on the optical disk 19 using the optical disk device 22
A new IPA (HA) is additionally stored in the storage area 19a, and a new MPA is stored in the MPA storage area 19b. Thereafter, other image information and search data are stored on the optical disk 19 in the same manner.

On the other hand, a search for image information registered as described above will be explained. First, set the search mode on the keyboard 23 and enter the search code.Then, the CPU 12 transfers the search code to the RAM 1g.
The search code 9 is sequentially compared with the search code 9 stored in the search code 9, and it is sequentially checked whether or not the search code matches the long-term search code. For matching search codes, the start trunk number and start sector number of the image information corresponding to the search code are searched. And CPU 12
causes the optical disc device 22 to reproduce the track on the optical disc 19 corresponding to the track number. Then,
The CPU 1 z receives image information (
The compressed information) is supplied to the compression/expansion circuit 15 for each scanning line, band expansion is performed by MH inverse conversion, and the original image information is sequentially supplied to the page buffer 14. In this way, when all the reproduced image information is stored in the page buffer 14, the image information of the CPU IM is displayed on the CRT 7' display device 24 using the display interface 16.
Either the image information is displayed on the screen, or the recording device 25 issues a copy 26 of the image information. Thereafter, other searches are performed in the same manner.

As described above, even if the length of image information and its search data is undefined, the storage capacity of the original disk can be utilized without wasting it.

In the above embodiments, the case where the IPA storage area is provided on the innermost track and the MPA storage area is provided on the outermost track in the optical disc is described, but the present invention is not limited to this. 1/MPA storage area and MPA storage area are provided in order from the trunk, or K in order from the outermost track.
The same implementation is possible even when an IPA storage area and an MPA storage area are provided.

Furthermore, in the optical disc, search data is stored from the outside and image information is stored from the inside, but the present invention is not limited to this. Image information is stored from the outside and search data is stored from the inside. You may also do so.

〔Effect of the invention〕

As described in detail above, according to the present invention, it is possible to provide an image information storage and retrieval device that can use the storage capacity of a storage device without wasting it.

[Brief explanation of drawings]

The drawings show one embodiment of the present invention, and FIG. 1 is a block diagram schematically showing the overall structure, and FIGS. 2 and 3 are plan views for explaining the structure of an optical disk and an example of its storage. , FIG. 4 is a diagram for explaining the structure of the search data, and FIG. 5 is a flowchart for explaining the main part of the operation. 11... Main control device, 12... CPU, 14...
Target buffer, 15... Compression/expansion circuit, 18...R
A.M. 18a - IPA storage area, 18b...MPA
Storage area, 19 a - IPA storage area, 19 b
- MPA storage area, 19... optical disk (storage device), 20... two-dimensional scanning device, 21... manuscript, 22...
Optical disk device, 23...keyboard, 27...image buffer, 28...battery.

Claims (1)

[Claims] In an image information storage and retrieval device that stores a plurality of image information and management information for each image information in a storage device, and retrieves and outputs the image information from the storage device, one end side of the storage area of the storage device An image information storage and retrieval device characterized in that image information is stored from one end of the book, and management information thereof is stored from the other end of the book.