JP2746874B2 - Information processing device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Industrial application field) The present invention provides, for example, an optical disc for recording or reproducing information.
For information processing devices such as optical disc devices
Related. (Prior Art) In recent years, image information such as documents generated in
Photoelectrically converted by optical scanning, and this photoelectrically converted image information
On an image recording device, or if necessary
Search, play, hard copy or soft copy
Image recording in an image information file device capable of reproducing and outputting
An optical disk has recently been used as a recording device. Conventionally, in such an optical disk device, a spy
An optical disk that records information in a spiral shape is used.
Optics linearly moved by a linear motor in the radial direction of the disk
The head records or reproduces information
Has become. In such an optical disc device, a pre-header
The defective area (block) is determined by reading the
Data is recorded on the disk.
You. This allows you to skip the defective area and record
It is supposed to be. When recording, the host
Perform read-after-write on the computer side and make corrections.
If reading is not possible even after reading
The rear (block) is determined to be a defective area and another block
As a substitute block, and the defective block
A to record the information to be recorded. And
Correspondence between defective area and substitute area during manufacturing and recording
Stored defect management information in separate memory buffers.
It has become so. However, in the above-mentioned optical disk device, when recording,
Management of defective areas and alternative areas
Processing is performed on the
The disadvantage is that the processing of the computer becomes complicated.
Was. Also, the capacity and recording information of the memory buffer for defect management information
Information unit does not match, the defect management information
The processing of the information was complicated. (Problems to be Solved by the Invention) As described above, processing during recording and reproduction takes time,
Except for the disadvantage of complicating host computer processing.
To reduce processing time when recording and reproducing information.
The host computer from the alternative process.
Release can reduce processing and can reduce defects
To provide an information processing device that facilitates processing of management information.
And there. [Configuration of the Invention] (Means for Solving the Problems) The information processing apparatus of the present invention provides a minimum recording of information to be recorded.
With the capacity of an integral multiple of the unit,
Defect information indicating the replacement area and the defect at the time of recording
Recording defect replacement area indicating replacement area for area
Defect management in which defect management information consisting of information is recorded
For an information recording medium on which an information recording area is recorded
For recording or reproducing information,
Recorded in the defect management information recording area of the information recording medium.
Initial defect replacement area information and recording defect replacement area information
Reading means for reading defect management information comprising:
Initial defect replacement area information read by the means
Defect management information consisting of defect replacement area information is
Storage medium having the same storage capacity as the defect management information recording area
Storage means for storing in the body, area for recording when recording information
Is missing due to the defect management information stored in the storage medium.
Judge whether the area is a defect area, and if it is a defect area,
1st recording of information in alternative area by information
Alternative processing means, after recording the information, read the recorded information
The information is reproduced by performing error correction, and this information is reproduced.
Information cannot be played back properly,
Record information for another area as a fallen area,
And the correspondence between the defective area and another recording area
Defect replacement area information at the time of recording of the storage medium as the physical information
The second alternative processing means for additionally storing the information in the
Defect management where the generated area is stored in the storage medium
Determine whether the area is defective based on the information.
Reproduction of information for alternative areas using the defect management information
Alternative processing means for performing the following, and removing the recording medium
When the defect management information is additionally stored,
The defect management information stored in the storage medium
From the recording means for recording in the defect management information recording area of the medium
It is composed. (Operation) The present invention provides an image processing method that is an integral multiple of the minimum recording unit of information to be recorded.
The capacity indicates the replacement area for the initial defective area
Initial defect replacement area information and defective area at the time of recording
It consists of the recording defect replacement area information indicating the replacement area.
Defect management information recording area where defect management information is recorded
Information is recorded on the information recording medium on which
Or in the case of reproduction, the information recording medium
Initial defect replacement recorded in the defect management information recording area
Defective tube consisting of rear information and defect replacement area information during recording
The initial defect replacement area information that has been read
Management information consisting of information and defect replacement area information during recording
Has the same storage capacity as the defect management information recording area.
Area to be recorded when recording information
Is missing due to the defect management information stored in the storage medium.
Judge whether the area is a defect area, and if it is a defect area,
Information is recorded in the alternative area by the information, and the information is recorded.
After recording the data, read the recorded information to correct the error.
To reproduce information, and this information is reproduced correctly.
If the recording area is not
Information is recorded for the area and the defective area
And the corresponding recording area as defect management information.
The information is additionally stored in the defect replacement area information when recording
When playing back, the area to be played back is stored in the storage medium.
Judge whether the area is a defect area based on the defect management information
In the case of a rear area,
Information, and when removing the recording medium,
Is stored in the storage medium when the defect management information is additionally stored.
The above-mentioned defect management information is stored in a defect pipe of the recording medium.
This is recorded in the physical information recording area. Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
I will tell. FIG. 2 shows an information processing apparatus of the present invention, that is, an optical disk drive.
1 shows a schematic configuration of the device. That is, the optical disk
(Information recording medium) 1 is a spy with a constant radial pitch.
The motor 4 has a radial or concentric information storage unit.
It is driven to rotate more. The optical disc 1 is, for example, as shown in FIG.
Formed circularly with glass or plastics
Metal coating layer of tellurium or bismuth on substrate surface
That is, the recording film 1a is coated in a donut shape.
Notch near the center of the metal coating layer
Position mark 1 ₁ Is provided. On the optical disc 1, as shown in FIG.
Reference position mark 1 ₁ With 0 as 256
Kuta is divided. Variable length on the optical disc 1
Information is recorded over multiple blocks.
36,000 tracks and 300,000 blocks on optical disc 1
A lock is configured. Note that a sector of one block on the optical disc 1 is
The number will be, for example, 40 sectors inside and 20 sectors outside
It is supposed to be. At the start of the above block
Is a block consisting of a block number, track number, etc.
The header A is recorded, for example, when the optical disc 1 is manufactured.
It has become. Further, each of the optical discs 1
If the block does not end at the sector switch position,
A gap is provided, and each block must be a sector switching position.
Starts with. The optical disk 1 is shown in FIGS. 4 and 5.
As described above, when the defect management information is recorded on the innermost circumference of the recording film 1a,
Both are composed of alternative areas, for example, 1000 trucks
Area for alternative processing (recording area for alternative processing) a
Is provided, and other recording areas used by the user
A user area (user recording area) b is provided as an area
Have been. As shown in FIG. 6, the alternative processing area a is 4K
Management for recording new and old defect management information f for each byte
Information area (correct) c, the same information as this management information area c
Information area (sub) d where information is recorded,
For alternative blocks with locks (alternate areas)
Area e, and the user (host
Special effects that cannot be recorded and played back (by computer)
Rear. The above alternative blocks are
Or defective block in user area b at the time of recording
A block used as a substitute for (defect area)
is there. The management information area c (, d) is as shown in FIG.
New and old defect management information (error management
(Information f) is recorded. That is,
Defect management information with updated defect replacement area information is recorded.
It is to be recorded. Here, two pieces of the same information
And improve the reliability of the defect management information.
You. The defect management information f is, as shown in FIG.
Defect replacement area information g and recording defect replacement area information h
It has become. The initial defect replacement area information g is
Manufacturing defects, ie blocks that cannot be recorded during manufacturing
(Defective area)
A), for example, reading of pre-header
Block that cannot read the pre-header.
Block number (defect area)
Replacement area). The above-described recording defect replacement area information h indicates that the recording was performed.
The defect found at the time, that is, when recording,
Alternative block for missing block (defective area)
Information that specifies the location (alternative area)
Of the read information (after read-after-write)
To determine whether recording was performed correctly based on whether or not playback was successful
Block number (defect area) that cannot be recorded correctly
Memorize the alternative block number (alternative area) for
Is what it is. In other words, you have to actually write
Information that specifies writing to another area for an area that does not exist
Information. Here, the defect management information f is recorded on the optical disk 1.
The latest defect that always manages from the initial defect to the latest defect
Records information. Also, defect management information of the optical disc 1
The data recording of the report f is the minimum recording unit (4K bytes)
Therefore, if the minimum unit is read, all of the defect management information f
Information can be obtained and reading speed can be improved
I have. Below the optical disk 1, as shown in FIG.
An optical head 5 for recording and reproducing information is provided.
ing. The optical head 5 includes a movable section 6 and a fixed section 8.
Fixed to the movable part 6 of the DC linear motor 3 to be formed.
The movable portion 6 moves the optical disc 1 in the radial direction.
It is moved linearly in the directions a and b shown in FIG. 9 is the movable part
6 which are so-called heavy detectors.
The movable part 6, that is, the optical head
The two types of phases are different (this phase
(The relationship depends on the direction.) A detection signal is output. On the other hand, the optical head 5 fixed to the linear motor 3
Semiconductor laser, collimator lens, beam splitter,
The objective lens is driven in the direction of the optical disc 1.
Focus drive coil and objective lens
Tracking drive coil driven in the radial direction, optical disc
Check whether the laser beam is focused on
Focus-match detector with a pair of emitting photodetectors
And tracking on information tracks
Detection with a pair of photodetectors
It consists of a container. Each photo detector detects the corresponding processing circuit
A signal is output, and each drive coil and each drive coil and
A predetermined voltage is applied to the semiconductor laser. The control circuit 20 is an external device, that is, a host computer (see FIG.
(Not shown) to control the entire device in response to signals from
It is. The linear motor drive circuit 14 is
According to the target position signal and the output signal of the detector 9
To drive the linear motor 3. On the other hand, the rotation motor drive circuit 10
The speed is determined according to the lock, and the setting from the control circuit 20 is performed.
Speed control is performed at a constant speed. Focus servo
The circuit 11 converts a detection signal from a detector in the optical head 5 into a signal.
The focus of the objective lens in the optical head 5 is adjusted accordingly.
The focus pull-in circuit 16
Change from non-working to working
Focusing is now performed correctly when performing
ing. The tracking servo circuit 12 detects a signal in the optical head 5.
The objective lens in the optical head 5 according to the detection signal from the output device
Beam emitted through the center of the truck
Move the objective lens in the radial direction of the optical disc 1
It is a thing to tighten. Also, the tracking servo circuit 12
Pause servo operation and generate track jump pulse
Track jump in response to the track jump pulse from road 17.
A pump drive pulse is issued to move the objective lens,
It can move the beam light for the rack.
You. The pit signal waveform shaping circuit 13 is provided with the optical head
5 for shaping the waveform of the detection signal from the detector in 5.
You. The binarization circuit 18 is provided by the pit signal waveform shaping circuit 13.
These waveform shaping signals are binarized. The reference clock generator 41 generates a reference clock.
It is. The variable clock generation circuit 19
The reference clock supplied from the clock generator 41
Frequency (hour) according to clock speed information supplied from 20
Clock signal (reference signal)
You. That is, the position of the optical head 5 is outside the optical disc 1.
The frequency of the clock signal is
Higher (shorter time). The reproduction synchronous clock extraction circuit 23 is provided with the control circuit
When the control signal from 20 is supplied, the variable clock
In response to the clock signal supplied from the clock generation circuit 19.
From the data supplied from the binarization circuit 18, each block
The playback synchronization clock recorded at the beginning of block header A
This is to extract the lock. The demodulation circuit 22 receives the clock from the variable clock generation circuit 19.
According to the lock signal, the reproduction synchronous clock extraction circuit 23
From the binarization circuit 18 following the reproduction synchronization clock from
It demodulates the supplied data. Serial-para
The rel conversion circuit 25 performs the reproduction supplied from the demodulation circuit 22.
The signal is the clock signal from the variable clock generation circuit 19
From serial data to parallel data according to
Things. The header discrimination circuit 26 is supplied from the demodulation circuit 22.
The reproduced signal is output from the clock from the variable clock generation circuit 19.
Only the header data is discriminated according to the signal.
You. The recording / playback header register 29
Stores supplied header data to be accessed
It is. The header comparator 28 stores the data in the recording / playback header register 29.
The stored header data is supplied from the header discrimination circuit 26.
Compare if the header data supplied matches
At this time, it outputs a coincidence signal. The parallel-serial conversion circuit 24 is described later.
The playback signal supplied from the recording / playback switching circuit 27 is
According to the clock signal from the variable clock generation circuit 19
It converts parallel data to serial data.
You. The modulation circuit 21 is the same as the parallel-serial conversion circuit 24 described above.
Data supplied from the variable clock generation circuit 19
Is modulated according to the clock signal. Laser drive
The driving circuit 15 converts the modulation signal supplied from the modulation circuit 21
The semiconductor laser (not shown) in the optical head 5 is
Data recording is performed by controlling the drive.
You. The recording / reproducing switching circuit 27 is provided from the control circuit 20.
From the header comparator 28 in accordance with the playback control signal
When a signal is supplied, that is, the playback data following the header data
Data to the recording / playback data buffer 30.
You. Further, the recording / reproducing switching circuit 27 controls the control
According to the recording control signal from the circuit 20, the recording / reproducing data
Recording data following the header data supplied from the data buffer 30.
Data to the parallel / serial conversion circuit 24.
It is. The recording / reproducing data buffer 30 stores the recording / reproducing switch.
The playback data from the switching circuit 27 is stored and
It stores recorded data from the raw data transfer circuit 32.
is there. The error correction code addition / error correction circuit 31
Check the recorded data stored in the recording / playback data buffer 30.
For example, add error correction code by Reed-Solomon method,
Also, the reproduction data stored in the recording / reproduction data buffer 30 is described.
Data error correction. The error correction code addition / error correction circuit 31
For read-after-write, correct with weak correction capability
This allows for strict checks and normal playback
Correction is performed with error correction capability. The above weak correction ability is the size of the error that can be corrected.
This is usually smaller than when reproducing.
The error correction code addition / error correction circuit 31
For the correction method using Sinter Liv, refer to Japanese Patent Application
Since it is described in detail in -15501, it is omitted here. The recording / reproducing data transfer circuit 32 stores the recording / reproducing data.
Playback data supplied from the
The host computer (shown in FIG.
No) and transfer the external
The recording data supplied via the interface circuit 33 is
The data is output to the recording / reproducing data buffer 30. The ROM 42 as a storage circuit is provided as shown in FIG.
In addition, the clock speed information of the optical disc 1 every 256 tracks
And the number of sectors in one block at this clock speed
And the first block in the 256 track at the above speed
Conversion number corresponding to the starting sector number of the block.
Table is stored. Further, the control circuit 20 is connected to the host computer.
Supplied via the external interface circuit 33
Alternatively, the block at the playback position,
When a block number is supplied, the
The access position is read from the ROM 42 and the frequency of the clock signal is read.
With the number constant, the linear motor 3 and the optical head 5
Access. Above clock speed
Patent application for reading (calculation) of degree information and access position
It is omitted here because it is described in detail in No. 59-32825.
You. Further, the control circuit 20 sets the optical disc 1 in the apparatus.
At regular time (at the time of opening), the management information area c of the optical disc 1
The latest defect management information read from (, d)
The file is stored in file 43, and the optical disk
1 (when closed) or defect management information
Is updated, the data stored in the memory buffer 43 is
Management information of the optical disc 1 using the defect management information as the latest information
This is to be recorded in the first unrecorded area of areas c and d.
You. The memory buffer 43 adjusts the minimum recording unit of data.
Several times the capacity, for example 4K bytes, the same as one block
As shown in FIG. 1, the initial
Defect replacement area information and recording defect replacement area information
It is to be remembered. Next, the operation in such a configuration will be described. Ma
Set the optical disk 1 to this device (open
Time). Then, the control circuit 20 first drives the motor 4
Then, the optical disk 1 is rotated at a constant speed. Then control
The circuit 20 determines the block number corresponding to the management information area c.
Clock speed information and access position or traffic
The read block number and the start sector number are read from the ROM 42. As a result, the control circuit 20 enables the clock speed information.
Output to the variable clock generation circuit 19. Then, the variable clock
The clock generation circuit 19 receives the reference clock from the reference clock generator 41.
Clock speed information supplied from the control circuit 20 using the clock.
Generates a clock signal of the frequency (time width) according to the report,
Modulation circuit 21, demodulation circuit 22, reproduction synchronous clock extraction circuit 2
3, parallel-serial conversion circuit 24, serial-parallel
To a header conversion circuit 25 and a header discrimination circuit 26. Also, the control circuit 20 uses the track number to
Convert the rack number to a scale value, and
Until the position detected by the output of the position detector 9 matches.
By driving the linear motor driver 14 with the
The head 5 is moved. Then, the movement of the optical head 5
Is completed, a detection signal from a detector in the optical head 5 is output.
Is waveform-shaped by the waveform shaping circuit 13 and binarized by the binarization circuit 18.
The digitized demodulation circuit 22 and the reproduction synchronous clock extraction circuit 23
Supplied to Then, the reproduction synchronous clock extraction circuit 23
Is written at the beginning of block header A from the supplied data.
The recorded playback synchronization clock is extracted and sent to the demodulation circuit 22.
Output. As a result, the demodulation circuit 22 outputs
And the read signal supplied from the binarization circuit 18 is demodulated.
And a recording / reproduction switch via the serial-parallel conversion circuit 25.
Output to the switching circuit 27 and header discrimination circuit
Supply 26. Then, the header discrimination circuit 26
Data to the control circuit 20 and header comparator 28.
Power. As a result, the control circuit 20 converts the header data to the optical data.
The track to which the head 5 corresponds is determined, and this track
And the desired track. As a result of this comparison, the control
If the circuit 20 is separated by more than several tens of tracks, the linear
The optical head 5 is moved again by the motor 3 and several tens of tracks
The optical head 5 by track jump
Move by the number of corresponding tracks. Then, the optical head 5 corresponds to the target track.
At this time, the header discrimination circuit 26 discriminates only the header data and
It is output to the header comparator 28. Also, at this time,
The header data of the block corresponding to the management information area c is
Stored in the header register 29 in advance by the control circuit 20.
The header data of this header register 29 is
Is supplied to the vessel 28. As a result, the header comparator 28
When the header data matches, a match signal is recorded and replayed.
Output to the raw switching circuit 27. Then, the recording / playback
The switching circuit 27 is supplied following the header data.
Output the playback data to the recording / playback data buffer 30 (read
Means). The reproduction data in the recording / reproduction data buffer 30 is corrected.
Error correction is performed by the correct code addition / error correction circuit 31.
After that, it is supplied to the control circuit 20. This allows management information
Defect management information f for each 4k bytes of areas c and d is sequentially controlled
It is supplied to the control circuit 20. Then, the control circuit 20 sends the latest information from the management information areas c and d.
Read out the defect management information f and store it in the memory buffer 43.
(Storage means). Read out the latest defect management information f
Is the defect management information in front of five consecutive free areas
f is read as the latest information. Also,
The latest defect management information read from the management information areas c and d
The data is confirmed by comparing reports f
You. Next, the latest defect management information is stored in the memory as described above.
In the state stored in the buffer 43, the host computer
External interface circuit 33 from the data (not shown)
Block number to record (access) via
It is assumed that the signal is supplied to the circuit 20. Then, the control circuit 20
The block number indicates the initial defect replacement area of the memory buffer 43.
Information g, that is, the initial defect area
Check if As a result of this check, initial defect
If not, the block number from the host computer
It is a block to record the number. In addition, the above check
As a result, in the case of the initial defect area, the initial defect replacement area information g
Block to record the replacement block read by
(First alternative processing means). Then, the control circuit 20 uses the conversion table of the ROM 42
Target block (block from host computer)
Track number, or alternate block), start section
Data and clock speed information. Then, control times
The path 20 uses the clock speed information as a variable clock generation circuit.
Output to 19. Thereby, the variable clock generation circuit 19
Control using the reference clock from the reference clock generator 41
The frequency corresponding to the clock speed information supplied from the control circuit 20
Generating clock signals, modulating circuit 21, demodulating circuit 22,
Reproduction synchronous clock extraction circuit 23, parallel-serial conversion
Circuit 24, serial-parallel conversion circuit 25, header discrimination
Supply to road 26. In addition, the control circuit 20 uses the track number to
Operates in the same way as when accessing the alternative processing area
The beam of the optical head 5 on the track of the target block.
Make light correspond. At this time, the recorded data is
Interface circuit 33 and recording / reproducing data transfer circuit
32 and stored in the recording / playback data buffer 30.
You. Then, match the block header of the target block
The signal is transferred from the header comparator 28 to the recording / reproduction switching circuit 27.
Is supplied by the recording / reproducing switching circuit 27.
The recording data in the recording / reproduction data buffer 30 is
The data is supplied to the analog conversion circuit 24. This parallel-serial
The recording data converted to serial data by the conversion circuit 24
Modulation is performed by the modulation circuit 21 and supplied to the laser drive circuit 15.
It is. As a result, the laser drive circuit 15
A semiconductor laser in the optical head 5 (shown in FIG.
) Is performed to record data. After this recording, read-after-write is performed. In other words, above
The block in which the recording was performed is read. That is,
The control circuit 20 stores the target block as in the case of the above recording.
The track of the optical head 5 with the laser beam
You. Then, match the block header of the target block
The signal is transferred from the header comparator 28 to the recording / reproduction switching circuit 27.
When supplied to the
Playback data from the real-parallel conversion circuit 25
The data is supplied to the raw data buffer 30. This recording / playback data
The reproduced data stored in the buffer 30 has an error correction code.
Error correction by weak correction capability is performed by addition / error correction circuit 31
Will be As a result, no correction error (defect) occurred.
In this case, the control circuit 20 ends the recording processing. As a result, if a correction error (defect) occurs,
The control circuit 20 is used next according to the defect replacement area information during recording.
Judge which alternative block is
Record the data again. After performing this recording,
Read-after-write and correct errors (defects)
If not, the control circuit 20 responds to the defective block.
Replacement at the time of recording in the memory buffer 43 with the replacement block
The area information is updated, and the information in the memory buffer 43 is further updated.
The information is recorded in the management information areas c and d. In addition,
If an error (defect) occurs, the control circuit 20 switches to another alternative block.
Record the above recorded data again in the
Operate (second alternative processing means). In this way, when checking the recording data,
If a defect is found twice, defect management information is recorded multiple times
I can do it. The same applies to recording data in other blocks.
It can be done like this. In this case, the above block
As the position is located on the outer peripheral side, the clock signal
The data is recorded in a state where the frequency is increased. The operation at the time of recording is as shown in FIG.
I have. In addition, an external interface from a host computer (not shown)
Playback via the interface circuit 33 (access
Suppose that the block number is supplied to the control circuit 20. Then, the control circuit 20 stores the block number in the memory bar.
Included in the initial defect replacement area information g of the buffer 43
, That is, whether it is an initial defect area. This
If it is not the initial defect area as a result of the check, the host
Block to play block number from computer and
I do. In addition, as a result of the above check,
The replacement block read out from the initial defect replacement area information g.
Block to be played back (third alternative processing procedure)
Stage). Then, as in the case of the recording, the block (e)
Block number from the
Clock speed information corresponding to the
Modulates the clock signal of the frequency according to the lock speed information
Circuit 21, demodulation circuit 22, reproduction synchronous clock extraction circuit 23,
Larrel-serial conversion circuit 24, serial-parallel conversion
The signal is supplied to a circuit 25 and a header discrimination circuit 26. Also, as in the case of the above recording, the target block
The laser beam of the optical head 5 is made to correspond to the rack. Then, match the block header of the target block
The signal is transferred from the header comparator 28 to the recording / reproduction switching circuit 27.
When supplied to the
Playback data from the real-parallel conversion circuit 25
The data is supplied to the raw data buffer 30. This recording / playback data
The reproduced data stored in the buffer 30 has an error correction code.
The addition / error correction circuit 31 causes an error due to the normal error correction capability.
Corrections are made. In this case, a correction error (defect) occurs.
If not, the control circuit 20 records the reproduction data into the recording / reproduction data.
Data transfer circuit 33 and external interface circuit 33
Transfer to the host computer and end the playback process.
You. As a result, if a correction error (defect) occurs,
The control circuit 20 performs a recording defect replacement area in the memory buffer 43.
A Replacement block corresponding to the defective block from the
Read and record data of the substitute block as described above.
The data is reproduced with normal error correction capability. Soshi
Thus, the control circuit 20 uses the reproduced data from the substitute block.
Recording / playback data transfer circuit 33 and external interface
Transfer to the host computer via the circuit 33 for playback processing
To end. The same applies when playing back data in another block.
It can be done like this. In this case, the above block
As the position is located on the outer peripheral side, the clock signal
The data is reproduced in a state where the frequency of the data is increased. The operation at the time of the reproduction is as shown in FIG.
I have. Also, when removing the optical disc 1 (when closed),
When the defect management information is updated, the control circuit 20
The defect management information stored in the rebuffer 43 is updated to the latest information.
As information, the first of the management information areas c and d of the optical disc 1
Recording in an unrecorded area (recording means). As described above, the recording data is stored in the optical disk device itself.
Defect at the initial or recording time to ensure the reliability of
It is now possible to perform alternative processing for the rear
Processing time can be reduced and the host
Processing by releasing the data from alternative processing
It is possible. The capacity of the memory buffer for storing defect management information
Is 4K bytes, the same as the minimum recording unit for optical discs.
Processing becomes easier. Furthermore, by reproducing the latest defect management information,
Since all the information up to now can be obtained,
When booting, defect management information from the optical disk
It is possible to reduce the time required for loading data into the buffer. Furthermore, the recording buffer defect replacement area in the memory buffer
Information is updated each time an alternative process during recording is performed.
Each time the optical disk is closed, its memory
Buffer initial defect replacement area information and recording defect replacement area
4K bytes of defect management information
Recorded in the management information area in the alternative processing area
It is supposed to be. In this case, the above initial defect replacement
Area information and latest defect replacement area information at the time of recording
, So that each piece of information is not processed specially,
It can be recorded on an optical disc. In addition, the defect management information is placed under the control of the optical disk device.
The defect management information
Destruction can be prevented, and the reliability of defect management information improves.
You. Furthermore, all defect management can be performed on the optical disk device side
Due to the recording format of the optical disc, compatibility with others
Can take. Also, as management information for initial defects and recording defects
Because the alternative area information of the
Speed can be improved. In the above embodiment, an optical disc was used as the information recording medium.
Although the case of using a magnetic field has been described,
Disk, floppy disk, laser card, etc.
There may be. [Effects of the Invention] As described in detail above, according to the present invention, recording of information
Time and playback time can be reduced and the host
By releasing the computer from alternative processing,
An information processing device that can be reduced can be provided. Further, according to the present invention, the defect management information is stored.
The capacity of the storage medium is the same as the minimum recording unit on the information recording medium
Since the number of bytes is used, processing becomes easy. Furthermore, by reproducing the latest defect management information,
Since all the information up to now can be obtained, start the information processing device.
When operating, the defect management information is transferred from the information recording medium to the storage medium.
Can be reduced in time to load. Furthermore, the recording defect replacement area information on the storage medium
Is updated each time an alternative process is performed during recording, and information
Each time the storage medium is closed,
From defect replacement area information and recording defect replacement area information
The predetermined number of bytes of defect management information is stored on the information recording medium.
Recorded in the management information area in the alternative processing area
It has become. In this case, the initial defect replacement area
Information and the latest recording defect replacement area information
Information processing without special processing of each information.
It can be recorded on a recording medium. Also, as management information for initial defects and recording defects
Because the alternative area information of the
Speed can be improved.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 shows an embodiment of the present invention. FIG. 1 is a view for explaining an example of storage in a memory buffer, and FIG. 2 is a view schematically showing a configuration of an optical disk device. FIG. 3 is a view showing the structure of the optical disk, FIG. 4 is a plan view showing the structure of the disk, FIG. 5 is a plan view for explaining an alternative processing area and a user area, and FIG. FIG. 7 is a diagram showing a recording example of a management information area, FIG. 8 is a diagram for explaining a recording example of defect management information, and FIG. 9 is a diagram of a conversion table. FIG.
FIG. 10 is a flowchart for explaining a recording operation, and FIG.
The figure is a flowchart for explaining the reproducing operation. 1 ... optical disk (information recording medium), 1a ... recording film, a
…… Substitute processing area (substitution processing recording area), b…
... user area (user recording area), c, d ... management information area, e ... substitute block area, f ... defect management information, g ... initial defect replacement area information, h ... recording defect replacement area Information 20 Control circuit 31 Error correction code addition / error correction circuit 43 Memory buffer (storage means).

Claims (1)

(57) [Claims] A defect consisting of initial defect replacement area information indicating a replacement area for an initial defect area and recording defect replacement area information indicating a replacement area for a recording defect area with an integral multiple of the minimum recording unit of information to be recorded. In an information processing apparatus that records or reproduces information on an information recording medium on which a defect management information recording area on which management information is recorded is recorded on the defect management information recording area of the information recording medium. Reading means for reading defect management information comprising initial defect replacement area information and defect replacement area information at recording; and defect management information comprising initial defect replacement area information and defect replacement area information at recording read by the reading means. Storage means for storing in a storage medium having the same storage capacity as the defect management information recording area, and recording of information Determining whether the area to be recorded is a defect area based on the defect management information stored in the storage medium, and, if the area is a defect area, recording information in the substitution area based on the defect management information; After the information is recorded, the information is reproduced by reading the recorded information and performing error correction. When the information cannot be reproduced correctly, the information is recorded in another area with the recording area as a defective area. And second alternative processing means for additionally storing the correspondence between the defective area and another recording area as defect management information in the defect replacement area information at the time of recording of the storage medium; The defect management information stored in the storage medium is used to determine whether or not the area is a defect area. A third alternative processing means for reproducing the defect management information, when the recording medium is removed or when the defect management information is additionally stored, the defect management information stored in the storage medium is replaced with the defect management information. An information processing apparatus, comprising: recording means for recording in a recording area.