JPH11134811A - Recording and reproducing method and recording and reproducing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a recording and reproducing device and a recording and reproducing method which enable defect management for data requiring a real- time property and enable coping with a defect generated with the use, and provide a recording and reproducing device, a recording and reproducing method, and an information recording device which enable use of linear replacement defect information for slipping replacement without having any breakdown. SOLUTION: At the time of recording, in the case where the address of a target sector is recorded in a SDL (secondary defect list), that sector is skipped (S19). Then, the address information is recorded into a PDL (S23) and the address information is erased from the SDL (S26). At the time of reproduction, even when the address information of a target sector is recorded in the SDL, the SDL is ignored and that sector is reproduced.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an information recording / reproducing apparatus for recording information on a recording medium and reproducing the information from the recording medium, and a method for recording and reproducing information on the recording medium. The present invention also relates to an apparatus and a method for performing defect management on a recording medium.

[0002]

2. Description of the Related Art Conventionally, when providing a recording medium such as a magneto-optical disk, it is necessary to correct defect information to ensure data reliability. Therefore, so-called defect management is performed. The defect management is to replace a defective sector with another normal sector.

[0003] As a method of the defect management, the following methods can be roughly classified. One is
This is called slipping replacement, and when a defect is detected in a sector as a unit for recording and playback,
The physical address for recording / reproducing is slipped, that is, the next logical address is given to the sector where the next defect is not detected.

[0006] That is, as shown in FIGS. 6 and 7, one zone of certain data is provided with a user area and a spare area, and the first sector as a physical address (the first sector is assumed to be 0th). If the fourth and fourth sectors are defective, a logical address is given to the next sector. That is, the first logical address is given to the second sector, and the third logical address is given to the fifth sector. Then, the (n-1) th logical address is given to the first sector of the spare area, and the nth logical address is given to the next sector.

The other one is called linear replacement, and when a defect is detected in a sector, a sector to which a logical address is assigned is not shifted as in the above-described slipping replacement, and the defective sector is replaced. The logical address of the sector is given to the spare area. In other words, as shown in FIG. 8, when the first sector (assumed to be 0th at the beginning) and the fourth sector as physical addresses have defects, the replacement of these defective sectors is performed. Logical addresses are placed in the spare area.

[0006]

However, AV (audio-
There has been a demand for defect management for digital AV data that requires real-time properties, such as data recorded on a recording medium used in a device. In addition, in a recording medium capable of recording and reproduction, when recording or reproduction is performed on the recording medium, a defect may occur in a sector, which is some factor. In such a case, it is desirable to be able to guarantee the accuracy of the data. In particular, it is conceivable that the recording / reproducing quality of the recording medium is not guaranteed at the time of shipment due to reasons such as cost, and in such a case, it is necessary for the user to perform defect management. Further, when the above-described defect information for the slipping replacement and the defect information for the linear replacement are recorded on the medium, the defect information for the linear replacement cannot be used for the slipping replacement.

Accordingly, the present invention provides a recording / reproducing apparatus and a recording / reproducing method capable of performing defect management on data requiring real-time performance and coping with the occurrence of a defect due to use progress. An object of the present invention is to provide a recording / reproducing apparatus, a recording / reproducing method, and an information recording apparatus which can provide defect information for linear replacement for slipping replacement without failure.

[0008]

SUMMARY OF THE INVENTION The present invention has been made in order to solve the above-mentioned problems. First, information is recorded and reproduced by dynamically scanning a rewritable medium. A recording / reproducing method, comprising: reading out position information about a defect position for linear replacement from a medium on which position information about at least a defect position for linear replacement is recorded; and recording on the medium in a continuous recording mode. A defect position skip step of skipping the defect position when the position reaches the defect position. Therefore, according to the recording / reproducing method of the first configuration, the position information on the defect position for the linear replacement is read out, and then the skip process is performed on the defect position. Can be used.

Secondly, in the first configuration, in response to the end of the continuous recording mode or the end of recording in a predetermined range on the medium, position information on the defect position for the linear replacement is scanned. It is characterized in that it is recorded in a table area on the medium as position information on a defect position for ripping replacement. Therefore, by converting the defect information for linear replacement into the defect information for slipping replacement, the defect information can be used for slipping replacement. Thirdly, in the first or second configuration, the position information on the defect position for the linear replacement is erased from the medium. Therefore, it is possible to prevent the defect information for linear replacement and the defect information for slipping replacement from overlapping and causing a failure.

Fourthly, in any one of the first to third configurations, the recording / reproducing method further comprises sequentially detecting defect positions on the medium in a continuous reproducing mode. The position information about the defective position is sequentially stored in a memory, and in response to the end of the continuous reproduction mode or the end of reproduction of a predetermined range on the medium, the position information stored in the memory is stored in a table area on the medium. It is characterized by recording. Therefore, the defect position is detected during reproduction, the position information of the defect position is stored in the memory, and when the reproduction is completed, the position information about the defect position is recorded on the medium. Thus, defect management can be performed.

Fifth, in any one of the first to third configurations, the recording / reproducing method further includes a defect position detecting step of detecting a defect position on a medium in a continuous reproduction mode. A defect position storing step of sequentially storing position information about a defect position detected by the defect position detecting step in a memory; and storing the position information stored in the memory in a continuous reproduction mode or in a predetermined range in the medium. Recording a table in the table area on the medium in response to the end of reproduction. Also in the recording / reproducing method of the fifth configuration, in the defect position detecting step, the defect position is detected while performing the reproduction, and in the defect position storing step, the position information of the defect position is stored in the memory. In the table recording step, when the reproduction is completed, the position information on the defect position is recorded on the medium, so that the defect management can be performed using this position information at the time of recording.

Sixth, in any one of the first to third configurations, the recording / reproducing method includes a step of dynamically continuously scanning a medium carrying a series of information divided into sector units. A recording / reproducing method for recording / reproducing information in a continuous reproducing mode, wherein a defective sector detecting step of detecting a defective sector and position information of the defective sector detected by the defective sector detecting step are stored in a memory as a defective position. A defect position storing step of sequentially storing, and a table recording step of recording the position information stored in the memory in a table area on the medium in response to the end of the continuous reproduction mode or the end of reproduction of a predetermined range on the medium,
It is characterized by having. Also in the recording / reproducing method of the sixth configuration, in the defective sector detecting step, a defective sector is detected while reproducing, and in the defective position storing step, the position information of the defective sector is stored in a memory. In the table recording step, when the reproduction is completed, the position information about the defective sector is recorded on the medium, so that the defect management can be performed by using the position information of this position sector at the time of recording.

Seventh, in any one of the fourth to sixth configurations, the position information about the defect position detected in the continuous reproduction mode is replaced with the position information about the defect position for slipping replacement. Is recorded in the table area. Therefore,
The position information of this defect position can be used for slipping replacement. Eighth, the fourth
In any one of the configurations from 7 to 7, the defect position information detected in the continuous reproduction mode is stored in a table area on the medium in addition to the defect position information other than the defect position information detected in the continuous reproduction mode. It is characterized by recording separately. Therefore, in response to the end of the continuous reproduction mode or the end of reproduction of the predetermined range on the medium, the defect position information stored in the memory and detected in the continuous reproduction mode is replaced with the medium. In the upper table area, recorded separately from defect position information other than the defect position information detected in the continuous reproduction mode,
Since the defect information detected in other situations, for example, the defect information registered at the time of shipment from the manufacturer or the defect information detected at the time of formatting by the PC is stored separately, it is possible to use differently for each level. Further, since the defect information registered by the manufacturer and the defect information detected by the user are not mixed, the value of the defect information registered by the manufacturer is not reduced. Ninth, the fourth
In any one of the configurations from the first to the eighth, when the position information is stored in the memory, predetermined flag information is added to the position information and stored, and when the position information is recorded in the table area on the medium, the position information is stored. Is recorded together with the flag information. Therefore, it is possible to determine whether or not the recognition of the position information as a defect position is completed at the time of recording based on the flag information.

In a tenth aspect, in any of the fourth to ninth configurations, the recording / reproducing method further comprises the step of reading the position information stored in the table area on the medium and storing it in the memory. And a defect position skip step of skipping the defect position when the recording position on the medium reaches the defect position in accordance with the read defect position information in the continuous recording mode. Therefore, defect management can be performed by skipping a defect position during recording. In particular, since defect management is performed using reproduction and recording, there is no need to perform separate formatting or the like. Eleventhly, in the tenth aspect, in the continuous recording mode, information of a predetermined data amount is recorded in a divided area obtained by dividing the recording / reproducing area of the medium for each predetermined data amount. And Accordingly, defect management can be performed by securing recording data of a predetermined data amount in a certain partitioned area and performing slipping replacement.

Twelfth, the tenth or eleventh embodiment
In the above configuration, the recording / reproducing method further includes a flag information storing step of storing flag information indicating the skipped defect position in a memory in the continuous recording mode. Therefore, it is possible to determine whether or not recognition of the position information as a defect position has been completed at the next recording based on the flag information. In a thirteenth aspect, in the tenth or eleventh configuration, in the memory storing step, the flag information is read together with the position information and stored in the memory. Therefore, information for skipping at the time of the next reproduction or the like is given based on this position information, and whether or not recognition of the position information as a defect position has been completed at the next recording is determined based on the flag information. be able to.

Fourteenthly, in the thirteenth aspect, the recording and reproducing method further comprises the step of changing flag information corresponding to the skipped defect position in the continuous recording mode and storing the flag information in a memory. It has an information storage step. Therefore, by changing the flag information, it is possible to determine whether or not the position information has been completely recognized as a defective position at the next recording. Fifteenth, in any one of the twelfth to fourteenth configurations, in response to the end of the continuous recording mode or the end of reproduction of a predetermined range on the medium, the position information stored in the memory is used. And a table recording step of overwriting the position information on the defect position detected in the continuous reproduction mode together with the flag information in the table area on the medium. As a result, information for skip processing at the time of the next reproduction or the like can be given. Sixteenth, in any one of the twelfth to fourteenth configurations, in response to the end of the continuous recording mode or the end of reproduction of a predetermined range on the medium, the position information stored in the memory is used. And a table recording step of recording at least flag information on a defect position detected in the continuous reproduction mode in a table area on a medium. As a result, information for skip processing at the time of the next reproduction or the like can be given.

Seventeenth, the twelfth to fourteenth elements
In any one of the above configurations, when the continuous reproduction mode is executed in a state where the flag information is stored in the memory, the defect position for slipping replacement, and the defect position or the flag information having the flag information are The reproduction is skipped for the information of the changed defect position, and the reproduction is executed for the defect position having no flag information or the defect position of which the flag information is not changed. That is, since the recognition of the defect position having the flag information or the flag information changed as the defect position has been completed, the reproduction is skipped, while the flag information does not have the flag information or the flag information is not changed. Since the recognition of the defect position as the defect position has not been completed, the reproduction is executed as it is. In the eighteenth, the twelfth to sixteenth are described.
In any one of the configurations described above,
Further, there is provided a reproducing step of reproducing information recorded on a medium having the flag information in the table area. The reproducing step includes reading the position information stored in the table area and storing the read positional information in the memory. In the mode, reproduction is skipped for a defect position for slipping replacement, which is a defect position having the flag information or a defect position in which the flag information has been changed, and the flag information does not have the flag information or the flag information is changed. The method includes a step of executing reproduction with respect to information on a defect position that has not been performed and information on a defect position for linear replacement. Also in this case, since the recognition of the defect position having the flag information or the flag information has been completed as the defect position, the reproduction is skipped, while the flag information having no flag information or the flag information is changed. Since the information on the defect position and the defect position for the linear replacement is not completely recognized as the defect position, the reproduction is executed as it is.

In the nineteenth aspect, the seventeenth or eighteenth
In the configuration of the above, when the reproduction of the information of the defect position indicated by the defect information for slipping replacement, the defect position having no flag information or the defect position where the flag information is not changed, When no defect is detected, position information on the defect position is erased from the memory. That is, even if the defect position is initially recorded, if no defect is detected, there is no need to record the defect position, so the position information is erased. Thereby, the area in the medium can be effectively used. Twentieth, in any one of the seventeenth to nineteenth configurations, the recording / reproducing method may further include a step of: detecting a new defect position not in the memory in the continuous reproduction mode. And an additional step of adding position information about the new defect position to the memory. Thereby, defect management can be performed even for a new defect due to the use progress. In a twenty-first aspect, in the nineteenth or twentieth configuration, the position information stored in the memory in response to the end of the continuous reproduction mode or the end of reproduction of a predetermined range on the medium, The position information updated in the continuous reproduction mode is updated and recorded in a table area on the medium. Thereby, information for skip processing at the time of next recording or the like can be given.

In the twenty-second, the tenth through the twenty-first
In reading out the position information recorded in the table area of the recording medium, not only the position information on the defect position detected in the continuous reproduction mode, but also the defect position detected in other than the continuous reproduction mode. It is also characterized by reading out position information on This makes it possible to perform defect management based on defect information registered at the time of shipment from a manufacturer or defect information during formatting by a personal computer. In a twenty-third configuration, in any one of the first to twenty-second configurations, the information to be recorded or reproduced is video information and / or audio information.

A twenty-fourth aspect is a recording / reproducing apparatus for recording and reproducing information by dynamically scanning a rewritable medium, wherein the medium has recorded therein at least positional information on a defect position for linear replacement. Reading means for reading position information about the defect position for the linear replacement, and defect position skip means for skipping the defect position when the recording position on the medium reaches the defect position in the continuous recording mode. Features.
Therefore, according to the recording / reproducing method of the twenty-fourth configuration, the position information on the defect position for linear replacement is read out, and then the skip process is performed on the defect position. Can be used.

Twenty-fifth, in the twenty-fourth configuration, in response to the end of the continuous recording mode or the end of recording in a predetermined range on the medium, the position information about the defect position for the linear replacement is scanned. It is characterized in that it is recorded in a table area on the medium as position information on a defect position for ripping replacement.
Therefore, by converting the defect information for linear replacement into the defect information for slipping replacement, the defect information can be used for slipping replacement. A twenty-sixth feature is that, in the twenty-fourth or twenty-fifth configuration, position information on the defect position for the linear replacement is erased from a medium. Therefore, it is possible to prevent the defect information for linear replacement and the defect information for slipping replacement from overlapping and causing a failure.

In the twenty-seventh, the twenty-fourth to the twenty-sixth
In any one of the configurations described above,
Further, in the continuous reproduction mode, a defect position detecting means for detecting a defect position on the medium, a memory means for sequentially storing position information about the defect position detected by the defect position detecting means, Table recording means for recording defect position information stored in the memory means in a table area on the medium in response to completion of reproduction of a predetermined range on the medium. Therefore, the defect position is detected while being reproduced by the defect position detecting means, the positional information of the defective position is stored by the memory means, and when the reproduction is completed, the positional information on the defective position is recorded on the medium by the table recording means. Therefore, defect management can be performed using this position information at the time of recording.

In a twenty-eighth aspect, in any one of the twenty-fourth to twenty-sixth configurations, the recording / reproducing apparatus dynamically and continuously scans a medium carrying a series of information divided in sector units. A recording / reproducing apparatus for recording / reproducing information, comprising: a defective sector detecting means for detecting a defective sector in a continuous reproduction mode; and a memory means for sequentially storing position information of the defective sector detected by the defective sector detecting means. Table recording means for recording defect position information stored in the memory means in a table area on the medium in response to the end of the continuous reproduction mode or the end of reproduction of a predetermined range on the medium. Features. Also in the twenty-eighth configuration, the defective sector is detected by the defective sector detecting means while performing the reproduction, and the position information of the defective sector is stored by the memory means. Since the position information about the defective sector is recorded on the medium by the means, the defect management can be performed by using the position information of the position sector at the time of recording.

In the twenty-ninth aspect, the twenty-sixth to the twenty-eighth
In any of the above configurations, the position information on the defect position detected in the continuous reproduction mode is recorded in the table area as the position information on the defect position for slipping replacement. Therefore, the position information of this defect position can be used for slipping replacement. In a thirtieth aspect, in any of the twenty-sixth to twenty-ninth configurations, defect position information detected in the continuous reproduction mode is
It is characterized in that it is recorded in a table area on a medium in a manner distinguished from defect position information other than the defect position information detected in the continuous reproduction mode. Therefore, in response to the end of the continuous reproduction mode or the end of reproduction of the predetermined range on the medium, the defect position information stored in the memory and detected in the continuous reproduction mode is replaced with the medium. In the upper table area, recorded separately from defect position information other than the defect position information detected in the continuous reproduction mode, defect information detected in other situations, for example,
Since the defect information is stored separately from the defect information registered at the time of shipment from the manufacturer or the defect information detected at the time of formatting by the PC, it is possible to use the information for each level. Further, since the defect information registered by the manufacturer and the defect information detected by the user are not mixed, the value of the defect information registered by the manufacturer is not reduced. Also, the 31st
In any one of the twenty-sixth to thirty-sixth configurations, the memory means adds predetermined flag information to the position information when storing the position information in the memory, and stores the flag information in the table. The storage unit records the position information together with the flag information. Therefore, it is possible to determine from the flag information whether or not the position information has been recognized as a defective position at the time of recording.

In the thirty-second, from the above-mentioned twenty-sixth to thirty-first
In any one of the configurations described above,
Further, it has a memory means for storing the read defect position information, and a defect position skip means for skipping the defect position when the recording position on the medium reaches the defect position in the continuous recording mode. I do. Therefore,
Defect management can be performed by skipping defect positions during recording. In particular, since defect management is performed using reproduction and recording, there is no need to perform separate formatting or the like. Also,
In a thirty-third configuration, in the thirty-second configuration, in the continuous recording mode, the recording / reproducing device further includes:
It is characterized in that information of a predetermined data amount is recorded. Accordingly, defect management can be performed by securing recording data of a predetermined data amount in a certain partitioned area and performing slipping replacement.

In the thirty-fourth, the thirty-second or thirty-third is described.
Wherein the recording / reproducing apparatus further comprises a memory unit for storing flag information indicating the skipped defect position in the continuous recording mode. Therefore, it is possible to determine whether or not recognition of the position information as a defect position has been completed at the next recording based on the flag information. In the 35th,
In the thirty-second or thirty-third configuration, the recording / reproducing apparatus further includes a memory unit that reads and stores the flag information together with the position information. Therefore, information for skipping at the time of the next reproduction or the like is given based on this position information, and whether or not recognition of the position information as a defect position has been completed at the next recording is determined based on the flag information. be able to.

According to a thirty-sixth aspect, in the thirty-fifth configuration, the recording / reproducing device further changes flag information corresponding to the defect position skipped by the defect position skip means and stores the flag information in a memory. It is characterized by having information changing means. Therefore, by changing the flag information, it is possible to determine whether or not the position information has been completely recognized as a defective position at the next recording. In a thirty-seventh aspect, in any one of the thirty-fourth to thirty-sixth configurations, the recording / reproducing apparatus further responds to the end of the continuous recording mode or the end of recording in a predetermined range on the medium. There is provided a table recording means for overwriting the position information on the defect position detected in the continuous reproduction mode, together with the flag information, in the table area on the medium, the position information being stored in the memory. As a result, information for skip processing at the time of the next reproduction or the like can be given. In the thirty-eighth, the thirty-fourth to thirty-sixth
In any one of the configurations described above,
Further, in response to the end of the continuous recording mode or the end of the reproduction of the predetermined range on the medium, at least the flag information on the defect position detected in the continuous reproduction mode, which is the position information stored in the memory, And a table recording means for recording in a table area on a medium. As a result, information for skip processing at the time of the next reproduction or the like can be given.

In the thirty-ninth, the thirty-fourth to thirty-sixth
In any one of the above configurations, when the continuous reproduction mode is executed in a state where the flag information is stored in the memory means, the defect position for slipping replacement and the defect position having the flag information or the flag information The reproduction is skipped for the information of the defect position where is changed, and the reproduction is executed for the information of the defect position which does not have the flag information or whose flag information is not changed. That is, since the recognition of the defect position having the flag information or the flag information changed as the defect position has been completed, the reproduction is skipped,
On the other hand, as for the defect position having no flag information or the flag information not being changed, the recognition as the defect position is not completed, so that the reproduction is executed as it is. Forty-fourthly, in any of the thirty-fourth to thirty-eighth configurations, the recording / reproducing apparatus further comprises:
A table reading unit that reads the position information stored in the table area; and a memory unit that stores the read position information. After the position reading is performed by the table reading unit, the table information is recorded on the medium. A defect position erasing means for erasing position information detected in the continuous reproduction mode; and a defect position for slipping replacement in the continuous reproduction mode, the defect position having the flag information or the defect position having changed flag information. The reproduction of the information is skipped, and the reproduction of the defect position information having no flag information or unchanged flag information and the defect position information for linear replacement is executed. Also in this case, since the recognition of the defect position having the flag information or the flag information has been completed as the defect position, the reproduction is skipped, while the flag information having no flag information or the flag information is changed. Since the information on the defect position and the defect position for the linear replacement is not completely recognized as the defect position, the reproduction is executed as it is.

In the forty-first, the thirty-ninth or forty-fourth
In the configuration of the above, the recording and reproducing device is a defect position indicated by a defect position for slipping replacement,
When reproducing information on a defect position having no flag information or a defect position in which the flag information has been changed, if no defect is detected at the defect position, the position information on the defect position on the memory means is erased. It is characterized by doing. That is, even if the defect position is initially recorded, if no defect is detected, there is no need to record the defect position, so the position information is erased.
Thereby, the area in the medium can be effectively used. Also, in the 42nd, the above 39th to 41st
In any one of the configurations described above,
In the continuous reproduction mode, when a new defect position which is not on the memory means is detected, position information on the new defect position is added to the memory means. Thereby, defect management can be performed even for a new defect due to the use progress.
Forty-third, in the forty-first or forty-second configuration, the position information stored in the memory in response to the end of the continuous playback mode or the end of playback of a predetermined range on the medium, The position information updated in the continuous reproduction mode is updated and recorded in a table area on the medium. Thereby, information for skip processing at the time of next recording or the like can be given.

In the forty-fourth, the thirty-second to forty-third
In reading out the position information recorded in the table area of the recording medium, not only the position information on the defect position detected in the continuous reproduction mode, but also the defect position detected in other than the continuous reproduction mode. It is also characterized by reading out position information on This makes it possible to perform defect management based on defect information registered at the time of shipment from a manufacturer or defect information during formatting by a personal computer. Forty-fifth, in any of the above-described twenty-fourth to forty-fourth configurations, information to be recorded or reproduced is:
It is video information and / or audio information.

[0031]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described with reference to the drawings. A recording / reproducing apparatus A according to the present invention is configured as shown in FIG.
0, a magnetic head drive circuit 12, a magnetic head 14,
Optical head 16, reproduced signal amplifying circuit 18, low-pass circuit 20, decoder 22, ECC / EDC processing circuit 2
4, storage unit 28, storage unit 29, controller 30
, A servo circuit 32, a spindle motor 34, and a clock generation circuit 36.

The recording / reproducing apparatus A performs recording / reproducing on / from a magneto-optical disk (hereinafter simply referred to as "disk") 5 as the medium. Two DMAs are provided on the outer peripheral side. In this DMA (Defect Management Area),
DDS (Disc Definition Structure) and PDL (Prima
ry Defect List) and SDL (Secondary Defect List)
Are provided. Here, the DDS stores various types of information on the entire disc. In addition, the above P
The DL stores data relating to the slipping replacement, and particularly stores the address of a defective sector together with the flag information. In addition, the SDL includes
Stores data related to linear replacement.

The PDL includes, as described later,
The individual PDL divided into a plurality of levels is stored. For example, as shown in FIG.
, A level 1 individual PDL, and a level 2 individual PDL. In other words, this PDL includes each individual PD.
An area L is formed. Each individual PDL is distinguished by attaching an ID. For example, when the area is divided into three levels as described above, ID = 0 is assigned to the level 0 individual PDL area, ID = 1 is assigned to the level 1 individual PDL area, and level 2 is assigned to the level 1 individual PDL area. ID in the area of individual PDL
= 2. Each individual PDL has address information (31 bits) as physical address and flag information (1 bit).
Is stored.

Here, the input circuit 10 receives the video / audio signal and encodes the video / audio signal into digital data. The input circuit 10 also controls the bit rate at the time of variable length coding. The magnetic head driving circuit 12 drives the magnetic head according to a signal input from the input circuit 10. The magnetic head 14 is used when recording data, and magnetizes the recording film of the disk 5. The optical head 16 is used for reproducing data, and receives the reflected light of the laser light applied to the disk 5. The head 17 is composed of the magnetic head 14 and the optical head 16.

The reproduction signal amplifying circuit 18 amplifies the signal from the optical head 16. Further, the low-pass circuit 20 integrates the signal amplified by the reproduction signal amplifying circuit 18. The decoder 22 is provided with the clock generation circuit 36.
And decodes the signal modulated at the time of recording in synchronization with the clock sent from. The ECC / EDC processing circuit 24
Error correction is performed on the signal decoded by the decoder 22. That is, ECC (Error Correcting Code) processing and EDC (Error Detecting Code) processing are performed.

The storage unit 28 stores information, and particularly has a defect list as shown in FIG. As shown in FIG. 2, the defect list stores defect position data, that is, address information on a physical address (31 bits) of a defective sector together with flag information (1 bit). At least the storage unit 28 functions as a memory unit.

The storage unit 29 also stores information in the same manner. The storage unit 29 stores reproduced video and audio information. The storage units 28 and 29
Is actually constituted by a memory.

The controller 30 controls the operation of each unit of the recording / reproducing apparatus A. In particular, control is performed so as to perform operations as shown in the flowcharts of FIGS. 3, 4, and 5. Further, the controller 30 has a function of detecting a defective sector as the defect position. The defective sector is a sector in which recording and reproduction cannot be performed normally. That is, it is determined whether the correction has been made by the ECC / EDC processing. When the recording of a predetermined number of sectors on the disk 5 is completed, a process of rewriting the PDL in the DMA of the disk 5 according to the defect position data stored in the defect list stored in the storage unit 28 is performed. However, at this time, rewriting is performed among individual PDLs for storing defect information detected in real-time reproduction (individual PDs of level 2 described later).
L) only. The level 2 individual PDL corresponds to “an area provided in the table area on the medium and storing position information on a defect position detected in the continuous reproduction mode”. Also, when the reproduction of a predetermined number of sectors on the disk 5 is completed, the PDL in the DMA of the disk 5 is rewritten according to the defect position data stored in the defect list stored in the storage unit 28. However, in this case, the rewriting is
Among PDLs, an individual PDL (level 2 described later) for storing defect information detected in real-time reproduction is described.
Individual PDL). The defect information here is
It is composed of address information and flag information. The controller 30 functions as the defect position detecting means and the defective sector detecting means.

The servo circuit 32 rotates the spindle motor 34 at a predetermined number of revolutions in accordance with a signal and a clock sent from the reproduction signal amplifying circuit 18.
The objective lens in the optical head 16 is controlled to perform tracking servo and focus servo.

The operation of the recording / reproducing apparatus A having the above configuration, that is, a recording / reproducing method by the recording / reproducing apparatus A will be described. First, a case where information such as video and audio information is recorded on the disk 5 will be described. Initially, the media manufacturer registers defect information on the disk 5 at the time of shipment, and as a result, the address information of the defective sector is stored as defect information in the level 0 individual PDL. It is assumed that address information detected when a physical format is performed by a computer is stored as defect information in a level 1 individual PDL. In other words, the personal computer creates a level 1 individual PDL as a dedicated area when performing the physical format. This level 0 individual PDL
And the level 1 individual PDL stores address information indicating a defect position, and each address information is added with 0 flag information. Note that it is assumed that recording / reproduction is not performed on the disk 5 by the recording / reproduction device A, and at this stage, there is no individual PDL of level 2 described later.

Further, it is assumed that information on linear replacement is stored in the SDL. That is, in the SDL, address information on a defective sector and address information as a substitute for the defective sector are stored as a pair. This alternative address information is provided in a spare area (see FIG. 6).

At the time of recording, the flowchart shown in FIG. 4 is applied.
First, it is assumed that the recording / reproducing device A has been activated. That is, it is assumed that the recording / reproducing apparatus A is turned on. Then, it is determined whether the disk 5 is set in the recording / reproducing device A (S10). This determination is made at predetermined intervals. When the disk 5 is set, the information stored in the PDL and the SDL is read (S11). That is, since the address of the defective sector is stored in the PDL or SDL, this address information is read. As for the PDL, information of all the individual PDLs of level 0 to level 2 is read. In this case, since there is no individual PDL of level 2,
The defect information stored in the level 0 individual PDL and the level 1 individual PDL is read. In addition, SDL is read out for each pair of address information. The read defect information is stored in the defect list (see FIG. 2) of the storage unit 28. This reading is performed by the optical head 16.
And so on.

Next, it is determined whether or not the disk 5 has been taken out of the recording / reproducing device A (S12). If not, the process proceeds to step S13. If the disk 5 has been removed, the process ends.

In step S13, it is determined whether or not a reproducing operation or a recording operation has been performed. If the reproducing operation has been performed, the flow shifts to S30 in FIG. On the other hand, when the recording operation has been performed, the process proceeds to step S14. Since there is a recording operation, steps S14 and subsequent steps will be described.

The video and audio information to be recorded is input to the input circuit 10.
, Received and encoded by the magnetic head drive circuit 1
Sent to 2. Then, writing is performed in order from a predetermined sector. To this end, first, the head 17 is moved to the recording start zone (S14). Then, it is determined whether the address of the target sector is registered in the PDL or SDL (S15). Here, it is determined whether the PDL is registered in any level of the individual PDL. For SDL, it is determined whether or not the target sector exists at the address of the defective sector among the paired address information read from SDL. At this point, since there is no individual PDL of level 2 at this time, level 0 and level 1
It is determined whether the address of the target sector exists in the individual PDL. For this determination, the controller 30 reads out the data stored in the defect list of the storage unit 28 and makes the determination.

If the target sector is registered, it is determined whether the address is registered in the PDL (S16). If the target sector is registered in the PDL, the process proceeds to step S17. Transition. On the other hand, P
If it is not registered in the DL, that is, if the address of the target sector is registered in the SDL, the process proceeds to step S19.

Next, in step S17, it is determined whether the flag information is 1 or 0. If it is 1, the flag information is set to 0 (S18). That is, the flag information at the address of the sector in the defect list in the storage unit 28 is set to 0. After that, it moves to step S19. In step S19, a jump process is performed (S1).
9). That is, recording is not performed on the target sector. After step S19, the process moves to step S21. On the other hand, even when the flag information is 0, the jump processing is performed (S1).
8) Then, the process proceeds to step S21. That is, if the address of the target sector is registered in the PDL and the SDL as a result, it indicates that it is a defective sector, and therefore, writing is not performed in that sector. This step S18 corresponds to the defect position skip step.

However, in this case, the individual P of level 0
Since the flag information added to the address information stored in the DL and the level 1 individual PDL is all 0, the process of setting the flag information to 0 in step S18 is not performed.

On the other hand, if the target sector is not registered in step S15, normal recording is performed (S15).
20). That is, the video and audio information is recorded in the target sector. After the recording has been performed, the process proceeds to step S21.

Then, in step S21, it is determined whether or not processing of a predetermined number of sectors has been completed. That is, in each zone of the disk 5, it must be guaranteed that recording is performed in a fixed number of sectors, and the fixed number is counted. That is,
Information of a predetermined data amount is recorded in the zone.
This zone corresponds to the above defined area. Thus, the slipping replacement for that zone is completed. If the processing of the predetermined number of sectors has not been completed, it waits for the sector to be sent (S22).

When the processing of the predetermined number of sectors is completed, the processing of rewriting the PDL of the disk 5 is performed (S23). That is, for the PDL, the address information stored in the level 2 individual PDL is overwritten together with the flag information. Actually, at the time of recording, only the flag information is changed from 1 to 0, so that only the address where the flag information becomes 0 is rewritten. Naturally, the contents of the address information are the same before and after overwriting. Furthermore, for SDL,
The address information of the defective sector registered in the SDL is recorded in the level 2 individual PDL. In other words, SDL has
The address of the defective sector and the address of the replacement sector are stored.
It is stored in L. At this time, the flag information is set to 0 because the substitution process has already been performed. Specifically, the address information in the PDL level 2 individual PDL in the DMA of the disk 5 is changed by the controller 30, the magnetic head drive circuit 12, and the head 17. The process of step S22 is performed every time the process of a certain zone is completed. The head 17 and the like function as table recording means. At the stage where there is no level 2 individual PDL on the disk 5, the process of step S23 is, of course, only the above-described process of converting the information of the SDL into the PDL and writing the information into the PDL. At that time, a level 2 individual PDL area is formed in the PDL. The level 2 individual PDL is given an ID so that it can be identified. The process of writing to the PDL corresponds to the table recording step,
DL corresponds to the table area. That is, writing is performed in response to the end of the continuous reproduction mode.

Then, it is determined whether or not the recording of all the designated data has been completed (S24). When the recording has been completed, the information of the SDL is deleted (S26). That is, SD
Since the information of L is converted into PDL and stored in the PDL of level 2 as described above, the information in SDL is deleted. Then, when the erasure of the SDL information is completed, the entire process is terminated, and when the recording of all the data specified in step S24 is not completed, the recording position is sent to the next zone. Later (S25), the process returns to step S15. As described above, when the target sector exists in the defect list, the writing is skipped, and when the target sector does not exist, the recording is performed.

It has been described that the writing to the disk is performed when the processing of a certain zone is completed (S2).
1, S23), not limited to this, and may be performed after the recording process of all data is completed. That is, in the flowchart shown in FIG. 4, the processing of step S23 may be provided between step S24 and step S26.

Next, the operation at the time of reproducing the disk 5 recorded as described above will be described with reference to FIG. In the disk 5, a media maker registers defect information at the time of shipment, and as a result, address information of a defective sector is stored as defect information in an individual PDL at level 0. The address information detected at the time of performing the physical format according to the
It is assumed that it is stored in the DL. It is also assumed that address information converted from SDL is stored in the level 2 individual PDL. It is assumed that the disk 5 on which the video and audio information is recorded as described above is set while the recording / reproducing apparatus A is running, and the reproducing operation is performed.

At the time of reproduction from the disk 5, the flowchart shown in FIG. 5 is applied, and the description will be made according to the flowchart shown in FIG. In this case, it is assumed that the video / audio information is recorded by the recording / reproducing device A, and the recorded video / audio information is reproduced.

The operations in steps S10 to S13 in FIG. 5 are the same as those described with reference to FIG. In this step S11, the disk 5
The information of the PDL and the SDL in the DMA stored in the storage unit 28 is read, and the information is stored in the storage unit 28. In this case, as for the PDL, the defect information stored in the level 0 individual PDL, the level 1 individual PDL, and the level 2 individual PDL are read. Level 2 individual PDL
Is address information converted from the SDL. SDL
Is read, but at this stage, it is assumed that the SDL information is erased in the previous recording process and the SDL information is not read. The optical head 16 and the like function as table reading means.

First, when reproducing the recorded video / audio information, reading is performed for each sector in each zone in a predetermined order. First, the reading position is sent to the reproduction start zone (S30). That is, the head 17 is moved to a predetermined position. Then, ECC / EDC processing is performed on the video and audio information recorded in a certain target sector, and it is determined whether or not the correction has been made (S31). At the time of ECC and EDC, processing by the reproduction signal amplifier circuit 18, the low-pass circuit 20, and the decoder 22 is performed in advance. This step S31 corresponds to a defect position detecting step and a defective sector detecting step.

If the correction is successful, it is determined whether the address of the target sector is registered in the PDL (S32). Here, any level of individual P
It is determined whether or not it is registered in the DL. This determination is made by the controller 30 in accordance with the information stored in the defect list of the storage unit 28. In this step S32, the SDL is not considered. That is,
At the time of this reproduction, since the slipping replacement is completed at the time of recording, the SDL is not considered.

If it is registered, it is determined whether the flag information is 1 or 0 (S33). This determination is also made by the controller 30 in accordance with the information stored in the defect list. Here, the case where the flag information is 1 means that when a defective sector is found during reproduction, the address of the sector is stored in the defect list with the flag information set to 1 (S42). .
Further, the case where the flag information is 0 means that step S1 is performed as shown in the flowchart of FIG.
Since there is a process for setting the flag information to 0 in 8,
There is a case where the flag information becomes 0 in this way.

If the flag information is 1, the address information and the flag information for the sector are deleted from the defect list in the storage unit 28 (S34). That is, the target sector was once written in the defect list as a defective sector, but since the subsequent error correction processing has detected that the target sector is not defective, the target sector is deleted from the defect list. . Then, the target sector is reproduced (S35). At the time of reproduction, the reproduced video / audio information is processed by the ECC / EDC processing circuit
When the EDC process is performed, the data is temporarily stored in the storage unit 29 and then output. From step S35, step S
Go to 44.

On the other hand, if the flag information is 0 in step S33, skipping is performed (S36). In other words, when the flag information is 0 for a certain target sector, the recognition of the sector as a defective sector has been completed, and the reading is skipped. Actually, a series of reproduction processing from the reproduction signal amplifier circuit 18 is omitted for the target sector. The process moves from step S36 to step S44.

If the address of the target sector is not registered in step S32, the sector is not a defective sector, and the reproduction is performed as it is (S35). From step S35, step S44
Move to

On the other hand, in step S31, the ECC
If the correction could not be made by EDC processing,
It is determined whether the address of the target sector is registered in PDL or SDL (S37). Here, it is determined whether the PDL is registered in any level of the individual PDL. That is, the controller 30 makes the determination in accordance with the information stored in the defect list of the storage unit 28. And if you are registered,
It is determined whether the address is registered in the PDL (S38). That is, also in this case, since the slipping replacement is completed at the time of recording, the SDL is not considered.

If the data is registered in the PDL, the flow shifts to step S39; otherwise, the flow shifts to step S40. In step S39,
It is determined whether the flag information is 1 or 0 (S39). This determination is also made by the controller 30 in accordance with the information stored in the defect list. If the flag information is 1, normal reproduction is performed (S40). In other words, although this sector is a defective sector, reproduction is performed at this point because slipping replacement has not been completed yet. As for the sector in which the flag information is not changed, the reproduction is performed as it is.

The specific method of reproduction is described in the above step S3.
Perform the same as in 5. On the other hand, when the flag information is 0, the reading is skipped (S41). In other words, when the flag information is 0 for a certain target sector, the recognition of the sector as a defective sector has been completed, and the reading is skipped. Step S above
The process moves from step S41 to step S44.

If the address of the target sector is not registered in step S37, the address information on the target address is registered in the defect list of the storage unit 28. At this time, the flag information is set to 1 (S42). The address of the target sector corresponds to the position information on the defect position. Then, the reproducing process is performed on the target sector. The method of the reproduction processing is S35, S
Same as 40. This step S42 corresponds to a defect position storage step, a defect position storage step, and an addition step. The process moves from step S43 to step S44.

Next, in step S44, it is determined whether or not the reproduction of the sector in the zone has been completed. When the reproduction is completed, the process proceeds to step S46. On the other hand, if the reproduction has not been completed, the read position is shifted to the next sector (S45), and the process returns to step S31.

Then, in step S46, it is determined whether or not reproduction of all designated sectors has been completed. If reproduction has been completed, defect position data is stored in the disk 5 (S48). That is, the defect position data stored in the defect list in the storage unit 28 is written to the individual PDL of level 2 in the PDL of the disk 5. Specifically, the address information newly stored in step S41 is added to the address information stored in the level 2 individual PDL, and the level 2 individual PDL is deleted in step S34. Overwritten to PDL. Naturally, the address information is written together with the flag information. The operation of step S48 is performed when the reproduction stop button is operated. Note that SD
At the time of this reproduction, the information in L is not converted to PDL as described above. If the reproduction has not been completed, the read position is shifted to the next zone (S47).

Since the defect information converted from the SDL to the PDL is also registered in the PDL, it is considered in the processing from the above steps S31 to S43. At this stage of recording the video and audio information on the disk 5 in which the defect information is registered in the SDL and then performing the reproduction, since the flag information of the address information converted from the SDL is 0, the step S3
From step 3, the process proceeds to step S36, and from step S39, the process proceeds to step S41.

The specific method of defect detection will be described. For example, as shown in FIG.
If a defect is detected in the first sector and the fourth sector (the first sector is assumed to be 0th), the defect list includes the address information of the first sector and the fourth sector in the flag information. Is stored (S41).

When the disk 5 that has been reproduced immediately before is further reproduced, the reproduction is performed according to the flowchart of FIG. In the above description, the writing of the defect position data to the disk is performed after the reproduction of all the sectors is completed (S48), but it may be performed when the reproduction for each zone is completed. That is, step S4
The process of Step 8 may be performed between Step S44 and Step S46. That is, writing is performed in response to the end of reproduction in a predetermined range on a disk as a medium.

When the disk 5 on which recording has been performed in accordance with the flowchart shown in FIG. 4 is to be reproduced as it is, the defect list in the memory 28 is stored in the form of flag information added to address information. The processing from step S30 is performed based on the information.

Next, a case where recording is performed again on the disk 5 on which the reproduction processing has been performed as described above will be described. Also in this case, the flowchart shown in FIG. 4 is applied, and the processing shown in steps S10 to S13 is performed as described above. Also in this case, in step S11,
The information of all the individual PDLs of level 0 to level 2 is read out, but since the reproduction processing has been performed, the defect information detected at the time of reproduction also is included in the read out information. The read information is stored in the storage unit 28 in the same manner as described above.
Is stored in the defect list. Also, just before SD
When defect information is recorded in SDL, such as when defect information is stored in L, information in SDL is also read.

For example, at the time of the immediately preceding reproduction, as shown in FIG. 7, if a defect is detected in the first sector and the fourth sector (the first is assumed to be the 0th) in a certain zone, the defect is detected. The list also includes the address information of the first sector and the fourth sector. Note that the flag information of the address is 1 (see FIG. 5).
See S42).

Then, as in the above case, step S1
4 are performed. If the zone to be recorded has a configuration as shown in FIG.
When the sector No. is set as the target sector, the sector No. 0 does not exist in the defect list.
Recording is performed on the third sector (S20). Next, in the case of the first sector, since the sector is present in the defect list, the process shifts from step S15 to step S16. , While SDL
If it is recorded in step S19, the process proceeds to step S19.
Move to If it is registered in the PDL, the flag information is 1 for the first sector, so the flag information is set to 0 (S18). That is, the flag information is changed and stored in the storage unit 28. This process corresponds to the flag information storing step. Then, a slip process is performed on the sector of the first address (S19). That is, recording of video and audio information is not performed. Since such control is performed by the controller 30, the controller 30 functions as the defect position skip unit and the flag information changing unit. Here, the reason why the flag information is set to 0 is to recognize that the first sector is a defect position in order to perform slipping replacement.

Next, for the second and third sectors, the same processing as for the zeroth sector is performed. In the second sector, video and audio information to be recorded next to the data recorded in the zeroth sector is naturally recorded. Next, for the fourth sector, similarly to the first sector, a process of setting the flag information of the address information recorded in the PDL to 0 is performed, and recording is not performed for the fourth sector. Next, the fifth and subsequent sectors are recorded in the same manner as the zeroth sector. Then, the same processing is performed until the processing of the n sectors is completed (S20, S21). That is, in the example of FIG. 7, since no data is recorded in the first and fourth sectors,
The n-th video / audio information in the zone shown in FIG. 7 is recorded in the (n + 2) -th sector as a physical address. Thereby, in the zone shown in FIG. 6, the existence of n data is guaranteed, and the slipping replacement is performed.

When the processing of a certain zone is completed, the level 2
Is rewritten (S23). That is,
A process of overwriting the information updated this time with the information stored in the level 2 individual PDL is performed. Essentially, the flag information in the level 2 individual PDL is changed. Note that new defect information is recorded in the SDL before the current reproduction, and when the defect information is read, the address information of the defective sector is recorded in the level 2 individual PDL as described above. Is done. Then, the above S15 to S15 are performed until the recording of all the specified video / audio information is completed.
The processing up to 23 is repeated. Even when the disk 5 on which the recording has been performed as described above is reproduced again, the processing is performed according to the flowchart of FIG.

In the sector existing in the defect list with the flag information set to 1, in the above-described re-recording,
The flag information is 0 for the sector that has become the target sector.
Therefore, at the time of this reproduction, the skip is performed (see S36 and S41 in FIG. 5).
On the other hand, in the sectors which are present in the defect list with the flag information set to 1 at the time of recording and are not the target sectors (that is, the sectors are not recorded at the time of recording), the flag information still remains at 1 Therefore, the reproduction is performed also in the current reproduction (see FIG. 5, S35, S40).

As described above, according to the recording / reproducing apparatus A of this embodiment, defect management is performed on digital AV data that requires real-time processing, such as data recorded on a recording medium used for AV equipment. be able to. In particular, in a recording medium capable of recording and reproduction, when recording or reproduction is performed on the recording medium, if a defect occurs in a sector, which is some factor, data accuracy can be guaranteed. Further, even when the recording / reproducing quality of the recording medium is not guaranteed at the time of shipment due to cost or the like, the defect management can be performed on the user side.

Further, in this embodiment, in particular, the defect information detected by the real-time reproduction is detected when the defect information is registered at the time of shipment from the manufacturer (defect information stored in the individual PDL of level 0) and when the format is performed by the PC. And stored in a dedicated individual PDL separately from the defect information (defect information stored in the level 1 individual PDL).
It can be used for each level. For example, in a certain reproduction, a method of ignoring the level 2 individual PDL can be considered. Further, since the defect information in the PDL registered by the manufacturer and the defect information detected by the user are not mixed, the value of the PDL registered by the manufacturer is not reduced, and the format is not changed by the PC. The obtained defect information is also managed separately as a level 1 individual PDL, so that the PDL registered by the manufacturer is not erased.

Further, in the recording / reproducing apparatus A of this embodiment, the slip information is used at the time of recording to perform the slipping replacement, and the SDL used in the slipping replacement is used.
Since the information of the defective sector recorded in the SDL is converted into the PDL and stored, the information in the SDL can be effectively used. At the time of reproduction, since the information in the SDL is ignored, the slipping replacement in the reproduction processing will not be broken. Further, when the information in the SDL is written in the PDL, the information in the SDL is erased and one address (physical address) is changed to the SDL and the PD.
L is prevented from being registered redundantly so that no failure occurs.

In the above configuration, a storage unit for reading and holding defect position data in the PDL stored on the disk, and a storage unit for registering defect position data when a sector defect is detected during reproduction. To the same storage unit 28
However, the defect position data stored in the two storage units may be added at the end of recording or reproduction and written to the disc at the end of recording or reproduction.

In the above description, S4 in FIG.
2, the flag information is set to 1 and the flag information is set to 0 in S18 of FIG. 4. However, the present invention is not limited to this. In S42 of FIG. 5, only the address information of the defective sector is stored. In step S18 in FIG. 4, the flag information may be stored in the storage unit 28. That is, the presence of the flag information corresponds to the case where the flag information is 0, and the absence of the flag information corresponds to the case where the flag information is 1. In this case, the process of storing the flag information corresponds to a flag information storing step.

In the above description, the defect management is performed by the slipping replacement. However, the present invention is not limited to this, and the processing may be performed by the linear replacement. In this case, since image data or audio data to be originally recorded at a certain defective sector position is recorded in a sector in the spare area, a buffer for storing the image data or audio data is separately required. Further, in the above description, the recording medium and the medium have been described using a disk as an example. However, the medium is not limited to this, and may be any medium that can repeatedly perform recording and reproduction. In the above description, the information to be recorded / reproduced has been described as video / audio information. However, the information is not limited to this, and may be, for example, video information or audio information.

[0085]

According to the recording / reproducing method and the recording / reproducing apparatus according to the present invention, defect management can be performed on data requiring real-time performance, and the occurrence of defects due to the use progress can be dealt with. be able to. Especially,
Even when the recording / reproducing quality of the recording medium is not guaranteed at the time of shipment, defect management can be performed on the user side. In addition, the slip information is used to record the defect information for linear replacement during recording, and the defect information for linear replacement is converted and stored for slipping replacement. Can be used. At the time of reproduction, since the defect information for linear replacement is ignored, the slipping replacement in the reproduction processing will not be broken. Furthermore, when the defect information for linear replacement is written for slipping replacement, the defect information for linear replacement is deleted, so one defect information is registered for both linear replacement and slipping replacement. And no failure occurs.

[Brief description of the drawings]

FIG. 1 is a block diagram illustrating a configuration of a recording / reproducing apparatus according to an embodiment of the present invention.

FIG. 2 is an explanatory diagram showing an outline of a defect list.

FIG. 3 is an explanatory diagram showing an operation of the recording / reproducing device.

FIG. 4 is a flowchart showing an operation at the time of recording.

FIG. 5 is a flowchart showing an operation at the time of reproduction.

FIG. 6 is an explanatory diagram showing a configuration of a recording / reproducing area in a magneto-optical disk.

FIG. 7 is an explanatory diagram illustrating slipping replacement.

FIG. 8 is an explanatory diagram illustrating a linear replacement.

[Explanation of symbols]

 A recording / reproducing apparatus 10 input circuit 12 magnetic head drive circuit 14 magnetic head 16 optical head 18 reproduction signal amplifying circuit 20 low-pass circuit 22 decoder 24 ECC / EDC processing circuit 28, 29 storage unit 30 controller 32 servo circuit

Claims (45)

[Claims] 1. A recording / reproducing method for recording / reproducing information by dynamically scanning a rewritable medium, wherein the linear replacement is performed from a medium on which at least positional information on a defect position for linear replacement is recorded. Recording / reproducing, comprising: a reading step of reading position information on a defect position for use; and a defect position skip step of skipping the defect position when the recording position on the medium reaches the defect position in the continuous recording mode. Method. 2. In response to the end of the continuous recording mode or the end of recording in a predetermined range on the medium, the position information about the defect position for linear replacement is used as the position information about the defect position for slipping replacement. The recording / reproducing method according to claim 1, wherein recording is performed in a table area on a medium. 3. The recording / reproducing method according to claim 1, wherein position information about the defect position for the linear replacement is erased from a medium. 4. The recording / reproducing method further comprises sequentially detecting defect positions on a medium in a continuous reproduction mode, and sequentially storing position information on the detected defect positions in a memory. 4. The recording / reproducing apparatus according to claim 1, wherein the position information stored in the memory is recorded in a table area on the medium in response to an end or an end of reproduction of a predetermined range on the medium. Method. 5. The recording / reproducing method, further comprising: in a continuous reproduction mode, a defect position detecting step of detecting a defect position on a medium; and storing, in a memory, position information on the defect position detected by the defect position detecting step. A defect position storing step of sequentially storing; a table recording step of recording the position information stored in the memory in a table area on the medium in response to the end of the continuous reproduction mode or the end of reproduction of a predetermined range on the medium; The recording / reproducing method according to claim 1, wherein the recording / reproducing method comprises: 6. The recording / reproducing method according to claim 1, wherein the recording / reproducing method performs dynamic continuous scanning of a medium carrying a series of information divided in sector units to record / reproduce information. A defective sector detecting step of detecting a defective sector; a defect position storing step of sequentially storing the position information of the defective sector detected by the defective sector detecting step in a memory as a defective position; and continuously storing the position information stored in the memory. 4. The recording / reproducing apparatus according to claim 1, further comprising: a table recording step of recording the information in a table area on the medium in response to the end of the reproducing mode or the end of the reproduction of a predetermined range on the medium. Method. 7. The apparatus according to claim 4, wherein position information on a defect position detected in said continuous reproduction mode is recorded in a table area as position information on a defect position for slipping replacement.
Recording / reproducing method described in 1. 8. The apparatus according to claim 1, wherein the defect position information detected in the continuous reproduction mode is recorded in a table area on the medium separately from defect position information other than the defect position information detected in the continuous reproduction mode. The recording / reproducing method according to claim 4, 5, 6, or 7. 9. When storing the position information in a memory,
A predetermined flag information is added to the position information and stored, and at the time of recording in a table area on a medium, the position information is recorded together with the flag information. 9. The recording / reproducing method according to item 8. 10. The recording / reproducing method, further comprising: a memory storage step of reading out position information stored in a table area on the medium and storing the read out position information in a memory;
10. The recording / reproducing method according to claim 4, further comprising a defect position skip step of skipping the defect position when the recording position on the medium reaches the defect position. 11. The recording according to claim 10, wherein in the continuous recording mode, information of a predetermined data amount is recorded in a divided area obtained by dividing a recording / reproducing area of the medium for each predetermined data amount. Playback method. 12. The recording / reproducing method according to claim 10, further comprising a flag information storing step of storing flag information indicating the skipped defect position in a memory in a continuous recording mode.
2. The recording / reproducing method according to 1. 13. The recording / reproducing method according to claim 10, wherein in the memory storing step, the flag information is read together with the position information and stored in the memory. 14. The recording / reproducing method, further comprising a flag information storing step of changing flag information corresponding to the skipped defect position in a continuous recording mode and storing the changed flag information in a memory. 14. The recording / reproducing method according to item 13. 15. The position information stored in the memory in response to the end of the continuous recording mode or the end of reproduction of a predetermined range on the medium, the position being a position of a defect position detected in the continuous reproduction mode. 15. The recording / reproducing method according to claim 12, further comprising a table recording step of overwriting the information together with the flag information in a table area on the medium. 16. In response to the end of the continuous recording mode or the end of reproduction of a predetermined range on the medium, at least the position information stored in the memory and at least the defect position detected in the continuous reproduction mode. 15. The recording / reproducing method according to claim 12, further comprising a table recording step of recording flag information in a table area on a medium. 17. When a continuous reproduction mode is executed in a state where the flag information is stored in a memory, a defect position for slipping replacement, the defect position having the flag information or the flag information is changed. 14. The apparatus according to claim 12, wherein the reproduction is skipped for the information on the defect position, and the reproduction is executed for the information on the defect position having no flag information or the defect position in which the flag information is not changed. 15. The recording / reproducing method according to 14. 18. The recording / reproducing method according to claim 1, further comprising a reproducing step of reproducing information recorded on a medium having flag information in a table area, wherein the reproducing step includes the step of: reproducing the position information stored in the table area. Reading and storing in a memory, in the continuous reproduction mode, skipping reproduction of information on a defect position for slipping replacement, the defect position having the flag information or the defect position in which the flag information is changed, 14. The apparatus according to claim 12, further comprising a step of executing reproduction of the information on the defect position having no flag information or the flag information not being changed, and reproducing the defect position information for linear replacement. Or the recording / reproducing method according to 14 or 15 or 16. 19. When reproducing information of a defect position indicated by defect information for slipping replacement and having no flag information or a defect position in which the flag information is not changed, the defect position is determined. 19. The recording / reproducing method according to claim 17, wherein when no defect is detected, position information on the defect position is erased from the memory. 20. The recording / reproducing method, further comprising, in a continuous reproduction mode, when a new defect position not found in the memory is detected, the position information on the new defect position is added to the memory. 20. The recording / reproducing method according to claim 17, further comprising an additional step. 21. In response to the end of the continuous reproduction mode or the end of reproduction of a predetermined range on the medium, the position information stored in the memory, the position information updated in the continuous reproduction mode being recorded on the medium. 21. The recording / reproducing method according to claim 19, wherein update recording is performed in an upper table area. 22. When reading the position information recorded in the table area of the recording medium, not only the position information relating to the defect position detected in the continuous reproduction mode but also the position information relating to the defect position detected in other than the continuous reproduction mode. 13. The method according to claim 10, further comprising:
Or 13 or 14 or 15 or 16 or 17 or 18 or 19 or 20 or 21. 23. The information to be recorded or reproduced is video information and / or audio information, wherein the information is video information and / or audio information. Or 12 or 13 or 14 or 15 or 1
6 or 17 or 18 or 19 or 20 or 21 or 22
Recording / reproducing method described in 1. 24. A recording / reproducing apparatus for recording / reproducing information by dynamically scanning a rewritable medium, comprising: a medium for recording at least position information about a defect position for linear replacement; Recording / reproducing means for reading out position information about a defect position for use, and defect position skipping means for skipping the defect position when the recording position on the medium reaches the defect position in the continuous recording mode. apparatus. 25. In response to the end of the continuous recording mode or the end of recording in a predetermined range on the medium, the position information about the defect position for linear replacement is used as the position information about the defect position for slipping replacement. The recording / reproducing apparatus according to claim 24, wherein recording is performed in a table area on a medium. 26. The recording / reproducing apparatus according to claim 24, wherein position information on the defect position for the linear replacement is erased from a medium. 27. The recording / reproducing apparatus further comprising: a defect position detecting means for detecting a defect position on a medium in a continuous reproduction mode; and positional information on the defect position detected by the defect position detecting means. Table recording means for recording defect position information stored in the memory means in a table area on the medium in response to the end of the continuous reproduction mode or the end of reproduction of a predetermined range on the medium, The recording / reproducing apparatus according to claim 24, 25 or 26, comprising: 28. A recording / reproducing apparatus for recording / reproducing information by dynamically and continuously scanning a medium carrying a series of information divided in sector units, wherein said recording / reproducing apparatus is in a continuous reproducing mode. Defective sector detecting means for detecting defective sectors; memory means for sequentially storing position information of defective sectors detected by the defective sector detecting means; response to the end of the continuous reproduction mode or the end of reproduction of a predetermined range on the medium. 27. The recording / reproducing apparatus according to claim 24, further comprising: table recording means for recording defect position information stored in said memory means in a table area on a medium. 29. The apparatus according to claim 26, wherein position information on a defect position detected in the continuous reproduction mode is recorded in a table area as position information on a defect position for slipping replacement.
Or the recording / reproducing device according to 28. 30. A method for recording defect position information detected in the continuous reproduction mode in a table area on a medium separately from defect position information other than the defect position information detected in the continuous reproduction mode. Claim 2
30. The recording / reproducing apparatus according to 6 or 27, 28, or 29. 31. The memory means, when storing the position information in a memory, adds predetermined flag information to the position information and stores the information, and the table storage means stores the position information together with the flag information. 31. The recording / reproducing apparatus according to claim 26, wherein recording is performed. 32. The recording / reproducing apparatus, further comprising: memory means for storing the read defect position information; and a defect for skipping the defect position when the recording position on the medium reaches the defect position in the continuous recording mode. 27. A position skip means, comprising:
32. The recording / reproducing apparatus according to 7 or 28 or 29 or 30 or 31. 33. The recording / reproducing apparatus according to claim 31, wherein in the continuous recording mode, information of a predetermined data amount is recorded in a divided area obtained by dividing the recording / reproducing area of the medium for each predetermined data amount. Item 33. The recording / reproducing device according to item 32. 34. The recording apparatus according to claim 32, wherein the recording / reproducing apparatus further includes a memory unit for storing flag information indicating the skipped defect position in the continuous recording mode. Playback device. 35. The recording / reproducing apparatus according to claim 32, further comprising memory means for reading and storing the flag information together with the position information.
Or the recording / reproducing apparatus according to 33. 36. The recording / reproducing apparatus further comprises: flag information changing means for changing flag information corresponding to a defect position skipped by the defect position skip means and storing the flag information in a memory. 35
The recording / reproducing apparatus according to claim 1. 37. The recording / reproducing apparatus further comprising: a position information stored in the memory in response to the end of the continuous recording mode or the end of recording in a predetermined range on the medium, wherein 37. The recording / reproducing apparatus according to claim 34, further comprising table recording means for overwriting and recording position information on the detected defect position in a table area on the medium together with flag information. 38. The recording / reproducing apparatus further comprising: a position information stored in the memory in response to an end of the continuous recording mode or an end of reproduction of a predetermined range on the medium, wherein 37. The recording / reproducing apparatus according to claim 34, further comprising table recording means for recording at least flag information on a detected defect position in a table area on a medium. 39. When the continuous reproduction mode is executed in a state where the flag information is stored in the memory means, a defect position for slipping replacement, the defect position having the flag information or the flag information is changed. 37. The apparatus according to claim 34, wherein the reproduction of the information of the defective position is skipped while the reproduction of the information of the defective position not having the flag information or the flag information is not changed is executed. The recording / reproducing apparatus according to claim 1. 40. The recording / reproducing apparatus further comprises: table reading means for reading the position information stored in the table area; and memory means for storing the read position information. For the slipping replacement defect position, the reproduction is skipped for the defect position having the flag information or the defect position information in which the flag information is changed, and the reproduction is skipped without the flag information or the flag information is not changed. 39. The recording / reproducing apparatus according to claim 34, wherein reproduction is performed on the information on the defect position and the information on the defect position for linear replacement. 41. The recording / reproducing apparatus according to claim 41, wherein the defect position indicates a defect position for slipping replacement,
When reproducing information on a defect position having no flag information or a defect position in which the flag information has been changed, if no defect is detected at the defect position, the position information on the defect position on the memory means is deleted. 41. The recording / reproducing apparatus according to claim 39, wherein the recording / reproducing apparatus is performed. 42. When the recording / reproducing apparatus detects a new defect position which is not on the memory means in the continuous reproduction mode, the recording / reproducing apparatus adds position information on the new defect position to the memory means. Claim 3
42. The recording / reproducing apparatus according to 9 or 40 or 41. 43. In response to the end of the continuous reproduction mode or the end of reproduction of a predetermined range on the medium, the position information stored in the memory, the position information updated in the continuous reproduction mode being recorded on the medium. 43. The recording / reproducing apparatus according to claim 41, wherein update recording is performed in an upper table area. 44. When reading out the position information recorded in the table area of the recording medium, not only the position information on the defect position detected in the continuous reproduction mode but also the position information on the defect position detected in a mode other than the continuous reproduction mode. 35. The method of claim 32, 33 or 34, wherein
Or the recording / reproducing apparatus according to 35 or 36 or 37 or 38 or 39 or 40 or 41 or 42 or 43. 45. The information recorded or reproduced is video information and / or audio information.
Or 25 or 26 or 27 or 28 or 29 or 30 or 31 or 32 or 33 or 34 or 35 or 36 or 37 or 38 or 39 or 40 or 41 or 42 or 4
45. The recording / reproducing apparatus according to 3 or 44.