JP3107552B2 - Information processing device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Purpose of the Invention] (Industrial application field) This kind of invention is an information processing apparatus capable of storing image information on an optical disc and searching and outputting the stored image information, for example. About.

(Prior Art) In this information processing apparatus, when information is recorded on an optical disk, the recorded information is read, and a read-after-write check for determining the reliability of the recorded information is always performed. . For this reason, although the reliability of the recorded information is improved, it takes time for the read-after-write check, so that the throughput (information processing capability per unit time) is reduced.

(Problem to be Solved by the Invention) The present invention solves the problem that the throughput is reduced by always performing a read-after-write check operation when recording information. An object of the present invention is to provide an information processing apparatus capable of preventing a decrease in throughput when recording information.

[Constitution of the Invention] (Means for Solving the Problems) In order to solve the above problems, the present invention provides a recording means for recording information on a recording medium, and a method for determining the reliability of the information recorded on the recording medium. Determining means for determining whether the reliability of the information recorded on the recording medium by the determining means at the time of recording or when recording the information on the recording medium by the recording means or selecting after recording is determined. And control means connected to and controlling the recording means, the discriminating means and the selecting means, wherein the controlling means controls the reliability of the information recorded on the recording medium by the discriminating means by the selecting means. When discrimination at the time of recording is selected, every time information is recorded on the recording medium in block units set on the recording medium by the storage means, the reliability of the information recorded by the discrimination means is reduced. If it is not selected by the selection means to determine the reliability of the information recorded on the recording medium by the determination means at the time of recording, all information to be recorded by the recording means is recorded on the recording medium. After the recording is completed, if it is selected by the selection unit to determine the reliability of the information recorded on the recording medium by the determination unit, the entirety of the information recorded by the immediately preceding recording is recorded on the recording medium. The reliability of the information is determined by the determination unit.

Further, the present invention is a recording means for recording information on a recording medium, a determining means for determining the reliability of the information recorded on the recording medium, connected to the recording means and the determining means,
Control means for controlling these, the control means detects the length of the information when recording information on a recording medium by the recording means, and the length of the detected information is a predetermined length If the length is shorter than the length, the information is recorded on the recording medium in block units set on the recording medium by the recording means, and the reliability of the recorded information is determined by the determining means, and the length of the detected information is determined. Is longer than a predetermined length, all information to be recorded by the recording means is recorded on the recording medium, after this recording is completed,
The reliability of the information recorded on the recording medium is determined by the determination means.

(Operation) According to the present invention, when information is recorded on a recording medium by the recording means, it is possible to select whether the reliability of the information recorded by the selecting means is to be determined at the time of recording or to be determined after recording. When it is selected to determine the reliability of the information at the time of recording, the control unit controls the reliability of the information recorded by the determination unit every time the information is recorded on the recording medium in block units set on the recording medium by the recording unit. If the selection means does not select the discrimination of the information recorded on the recording medium by the discrimination means at the time of recording, all the information to be recorded is recorded on the recording medium by the recording means. After the completion of the above, if the determination means selects the determination of the reliability of the information recorded on the recording medium by the selection means, The reliability of all the recorded information is determined by the determination means.

The control means detects the length of the information when the information is recorded on the recording medium by the recording means, and if the length of the detected information is shorter than a predetermined length, the control means sets the information on the recording medium. The information is recorded on the recording medium in units of the detected blocks, and the reliability of the recorded information is determined by the determining means. If the length of the detected information is longer than a predetermined length, all the information to be recorded by the recording means is recorded. The information is recorded on a recording medium, and after the recording is completed, the reliability of the information recorded on the recording medium is determined by a determination unit.

Therefore, the throughput of the information recording process can be improved without lowering the reliability of the recorded information.

Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

In FIG. 1, a bus 12 is connected to a CPU 11. A keyboard 13, a memory 14, an optical disk device 15, a magnetic disk device 16, a scanner device 17, a page memory 18, a display device 19, and a printer device 20 are connected to the bus 12.

The CPU 11 controls the entire apparatus. The keyboard 13 is for inputting various information such as command information. The memory 14 stores programs and the like necessary for the operation of the CPU 11.

An optical disk (not shown) is mounted on the optical disk device 15, and the optical disk device 15
, And image information of the document stored in the page memory 18 and the like are stored. The magnetic disk device 16 stores search information for searching image information stored in the optical disk device 15, a write command, and the like. The scanner device 17 generates an electric signal corresponding to a document image by exposing and scanning an image of a document set on a document table (not shown). The page memory 18 stores image information read from the scanner device 17 and image information read from the optical disk device 15. The display device 19 displays various types of processing information in accordance with instructions from the CPU 11, and displays image information stored in the page memory 18.
The printer device 20 prints out information and the like displayed on the display device 19.

FIG. 2 shows the configuration of a write (WRITE) command. This write command includes an operation code (OPC), a start block (STB) indicating a write start block of the optical disk, an information length (L) indicating the length of write information, and presence / absence of read-after-write check (RAW). ), The presence or absence of alternative processing (ALT), etc.

In the above configuration, an operation when writing image information to the optical disk device 15 will be described.

Normally, information as shown in FIG. 3A is displayed on the screen of the display device 19. When "register" is designated in this display state, a display for designating whether or not to perform a read-after-write check is displayed on the display device 19, as shown in FIG. In this display state, after the read-after-write check is designated as “ON”, a required document is set on the scanner device 17 and predetermined search information and the like are set, and a registration operation is started. In this registration operation, the image information of the document is read by the scanner device 17, and the read image information is stored in the page memory 18. The image information stored in the page memory 18 is written to the optical disk device 15. In this write operation, the write command is generated.

That is, in the write command, a write start block of the optical disk is set in the start block (STB), and the length of write information is set in the information length (L).
Further, when the read-after-write check is specified to be “ON” as described above, “1” is set to “RAW”.

When the write command is generated, first, a read
It is determined whether or not to perform an after write check (step ST1). As a result, when the read-after-write check is performed, the write operation is started as in the conventional case (step ST2). This writing operation is performed in units of one block set on the optical disc. That is, the image information for one block read from the page memory 18 is transferred to the optical disk device 15 and written. When the write operation is completed, a read-after-write check is performed (step ST3). When the read-after-write check is completed, it is determined based on the length (L) set in the write command whether or not the write operation of all image information has been completed (step ST4). As a result, if the writing has not been completed, the read-after-write check is performed every time the write operation is performed as described above. Therefore, in this write operation, a write operation read-after-write check operation is performed as shown in FIG.

In the display state shown in FIG. 3 (b), when the read-after-write check is set to “not performed”, it is determined in step ST1 that the read-after-write check is not performed. You. In this case, the write command is saved (step ST5), and the write operation is executed (step ST6). This writing operation is also performed for each block of the optical disk in the same manner as described above. Then, every time the write operation of one block is completed, it is determined whether or not the write operation of all information has been completed (step ST7). If not, the write operation of the next information is performed. If it is determined that the writing of all information has been completed, the execution of the write command is terminated. By not performing the read-after-write check in this manner, the write operation is continuously performed as shown in FIG. 5 (b).

On the other hand, when the registration processing is completed, the display device 19 is brought into the display state shown in FIG. In this state, for example, when "read after write check" is specified (step ST8), the read-after-write is performed on the image information written on the optical disk in accordance with the information of the write command immediately before being saved. A write check is performed (step ST9), and the reliability of the write information is checked.

According to the above embodiment, when registering the image information,
An operator can specify whether or not to perform an after write check. Therefore, the lead after
When the write check is set to “not performed”, only the write operation can be performed continuously, so that the throughput can be improved.

In addition, after the registration operation is completed, only the read-after-write check can be independently specified, so that the reliability of the written information can be checked.

Next, a second embodiment of the present invention will be described with reference to FIGS.

In the above embodiment, the presence or absence of the read-after-write check is specified by the operator. In this embodiment, the CPU automatically controls whether or not to perform the read-after-write check. It was made.

FIG. 6 shows the configuration of a write command in this embodiment. The write command includes an operation code (OPC), a start block (STB), an information length (L), and whether or not there is an alternative process (ALT).

On the screen of the display device 19, information as shown in FIG. 7 is normally displayed. In this display state, "Register"
Is specified, and a document is set on the kisana device 17 in the same manner as in the above-described embodiment, and when necessary search information is input, a registration operation is started. In this registration operation, the write command is generated.

That is, in the write command, a write start block of the optical disk is set in the start block (STB), and the length of write information is set in the information length (L).

When the write command is generated, first, the information length L
Is longer than a predetermined value (for example, the length of several blocks of the optical disk) (step ST11 in FIG. 8). As a result, when it is shorter than the predetermined value, the writing operation is started (step ST12). This writing operation is performed in units of one block set on the optical disc. That is, the image information for one block read from the page memory 18 is transferred to the optical disk device 15 and written. When this write operation is completed, a read-after-write check is performed (step ST13). When the read-after-write check is completed, it is determined whether or not the write operation of all image information has been completed (step ST14). If not, the write operation is performed as described above. Each time, a read-after-write check is performed.

On the other hand, if the information length L is longer than the predetermined value in step ST11, "FLAG" is set to "1", the write command is saved (step ST15), and the write operation is executed (step ST16). ). This writing operation is also performed for each block of the optical disk in the same manner as described above. Then, every time the write operation of one block is completed, it is determined whether or not the write operation of all information has been completed (step ST17). If not, the write operation of the next information is performed. If it is determined that the writing of all information has been completed, the execution of the write command is terminated.

On the other hand, the CPU 11 determines the state of “FLAG” at every predetermined timing, for example (step ST18). As a result, "FLA
When "G" is "1", a read-after-write check is performed on the image information written on the optical disk based on the write command immediately before being saved (step ST19). ).

According to the above embodiment, the throughput can be improved as in the above embodiment.

Moreover, in the case of this embodiment, it is automatically determined whether or not to perform a read-after-write check without the intervention of an operator. If the read-after-write check is not performed, a write operation is performed. After reading, the read-after-write check is automatically performed at a predetermined time. For this reason, the operation is easy and the throughput can be further improved.

Note that the present invention is not limited to the above embodiment, and various modifications can be made without departing from the spirit of the invention.

[Effects of the Invention] As described above in detail, according to the present invention, when information is recorded on a recording medium by the recording means, when the reliability of the information recorded is selected by the selection means at the time of recording is selected The control means determines the reliability of the information recorded by the discriminating means each time the information is recorded on the recording medium in block units set on the recording medium by the recording means, and is recorded on the recording medium by the discriminating means by the selecting means. If it is not selected to determine the reliability of the recorded information at the time of recording, all the information to be recorded is recorded on the recording medium by the recording means, and after the recording is completed, the information is recorded on the recording medium by the determination means by the selecting means. When it is selected to determine the reliability of the recorded information, the reliability of all the information recorded by the immediately preceding recording on the recording medium is determined by the determination unit. .

The control means detects the length of the information when the information is recorded on the recording medium by the recording means, and if the length of the detected information is shorter than a predetermined length, the control means sets the information on the recording medium. The information is recorded on the recording medium in units of the detected blocks, and the reliability of the recorded information is determined by the determining means. If the length of the detected information is longer than a predetermined length, all the information to be recorded by the recording means is recorded. The information is recorded on a recording medium, and after the recording is completed, the reliability of the information recorded on the recording medium is determined by a determination unit.

Therefore, it is possible to provide an information processing apparatus capable of improving the throughput of the information recording process without lowering the reliability of the recorded information.

[Brief description of the drawings]

FIG. 1 is a block diagram showing an embodiment of the present invention, FIG. 2 is a block diagram showing an example of a write command, and FIGS. 3 to 5 are diagrams for explaining the operation of one embodiment of the present invention. FIG. 6 is a block diagram showing another example of the write command;
7 and 8 are views for explaining the operation of another embodiment of the present invention. 11 ... CPU, 14 ... memory, 15 ... optical disk device, 16
…… Magnetic disk drive, 118… Page memory, 19 ……
Display device.

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁷ , DB name) G06F 3/06-3/08 G06F 17/30 G11B 20/18 G11B 7/00

Claims (2)

(57) [Claims] 1. A recording unit for recording information on a recording medium, a determining unit for determining the reliability of the information recorded on the recording medium, and when recording the information on the recording medium by the recording unit,
Selecting means for selecting whether to judge the reliability of the information recorded on the recording medium at the time of recording or after recording by the judging means; and connected to the recording means, the judging means and the selecting means for controlling these Control means, when the selection means selects the discrimination of the information recorded on the recording medium by the discrimination means at the time of recording, the control means sets the information on the recording medium by the storage means. Each time information is recorded on a recording medium in units of blocks, the reliability of the information recorded by the determining means is determined, and the reliability of the information recorded on the recording medium by the determining means is determined by the selecting means at the time of recording. If discrimination is not selected, all the information to be recorded by the recording means is recorded on a recording medium. When the discrimination means selects the discrimination of the reliability of the information recorded on the recording medium, the discrimination means may discriminate the reliability of the entire information recorded on the recording medium by the immediately preceding recording. An information processing apparatus characterized by the above-mentioned. 2. Recording means for recording information on a recording medium, discriminating means for judging the reliability of information recorded on the recording medium, and control means connected to and controlling the recording means and discriminating means. The control means, when recording information on a recording medium by the recording means, detects the length of the information, if the length of the detected information is shorter than a predetermined length, The information is recorded on the recording medium in block units set on the recording medium by the recording means, and the reliability of the recorded information is determined by the determining means, and the length of the detected information is longer than a predetermined length. In this case, all information to be recorded by the recording unit is recorded on the recording medium, and after the recording is completed, the reliability of the information recorded on the recording medium is determined by the determination unit. An information processing apparatus that.