The recording media (options)

 

The invention relates to the field of optical recording media, and particularly to a recording medium for storing information about the source position for each zone after the initial or re-boot. On the recording medium contains a lot of areas. Each zone has a user data area for storing user data. Many areas forms a group for defect management at the group level. There is also a spare area for replacing defects for the group, as well as a predefined area in which is stored information about the source position for each zone. The technical result - improved stability of recording and playback due to the possibility of processing large defects when moving the replacement provided by the Association of multiple zones within the same group. 3 C. and 24 C.p. f-crystals, 6 ill.

The technical field to which the invention relates the Present invention relates to the field of optical recording media and more specifically to a disk for storing information about the source position for each zone after initial startup or re-bootstrap the recording media, which has a spare area for defect management group, one prior art Disk is divided into zones for the suppression caused by the change of spindle speed and lower speed search inaccuracies records which arise when using the method of constant linear velocity (MLS), and for the zone linear velocity (SPLS) get a higher recording density than when using the method of constant angular velocity (STS).

Recordable and/or re-writable disk that is managed in a specific way to manage defects, may have an area with defects, which can be determined by way of certification, when the disk is initially loaded. To control the defects separately control the physical sector numbers to indicate the physical position on the disk and logical sector numbers to record and manage the file through the file system. Logical sector numbers are sequentially assigned to record and play back the file system in the areas, except for areas that are not used to write the file, for example introductory area or protection area, to accommodate changes at the interface between zones, and areas where defects occur. The file is written to disk and reproduced from the disk with the logical sector numbers in accordance with the file system, and the recording and/or vosproizvodyat the rank and/or reproduced, and then search for the physical sector numbers corresponding to the logical sector number for recording and/or playback.

When reproducing device makes a mistake in calculating the logical sector number, the file is written in a physically incorrect region and therefore the file cannot be read other playback device. The file also covers the recorded data and, therefore, the previously recorded data deteriorate.

A brief statement of the substance of the invention For solving the above problems, the present invention is the provision of a recording medium which is divided into a large number of zones, the method of controlling the speed of each zone, such as zone constant linear velocity or a zone constant angular velocity, and information about the original position of each zone is stored after initial startup or re-bootstrap the recording media, which forms a group of a large number of areas and has a spare area for defect management.

The aim of the present invention is also a data management based on the information about the original position of each zone recorded on the disc, to reduce the damage of data due to errors in R is isthmi, which differ from each other and ensure stable recording and/or reproduction of data.

Therefore, to achieve these goals, the developed recording media that contains multiple zones, with each zone having a user data area for storing user data, the set of zones forms a group for defect management at the group level, and a spare area for replacing defects for the group, as well as pre-specified area, which stores information about the source position for each zone.

In another embodiment, the recording medium also contains a number of zones, with each zone having a user data area for storing user data, with the specified set of zones forms a group for defect management, and protection zone, separating multiple zones, and a preset area in which is stored information about the source position for each zone.

In the third embodiment, the recording medium contains multiple zones, with each zone having a user data area for storing user data, with the specified set of zones forms a group for defect management, the spare area for many areas and a preset area in which is stored information about the starting position for each zone in the implementation of a sliding replacement.

A brief description of the drawings the Above-mentioned objectives and advantages of the present invention will become more apparent when the detailed description of its implementation with reference to the attached drawings, in which: Fig. 1 depicts the relationship between one-dimensional structure of a typical disk with the size of a standard version 1.0 digital versatile disk storage device, random access (DVD-RAM), and the source logical number of each zone; Fig. 2 depicts modifying the original logical sector number of each zone, caused by the slipping replacement disk, which is a group formed by a large number of zones, to clarify beings of the present invention; Fig.3 depicts the change in source position data, which are recorded when incorrectly calculated logical sector number in the disk structure of Fig.2; Fig. 4 depicts an example of a table structure that contains information about the source position for each zone in the management of defects in accordance with the present invention; Fig.5 is a block diagram of a variant of implementation of the method is IG. 6 is a block diagram of a variant implementation of the method of data management for recording and reproducing device in accordance with the present invention.

Description of the preferred implementation options
To manage defects on universal recordable and/or rewritable drive uses a sliding replacement for the passage of defects without giving logical sector numbers defects, defects (primary defects) that occur during the initial loading of the disc, and uses a linear substitution to replace the block code error correction (CRO) zone with normal error blocks in a spare area for defect (secondary defects) that occur during use of the disk.

That is, moving the replacement is used to minimize the decrease speed recording or playback due to defects, in which a logical sector number is assigned to the sector, which is considered to be defective during the certification process for monitoring defects of the disk during the initial loading of the disc. In this case logical sector number is assigned to the sector following the defective sector, i.e., data is recorded or reproduced by skipping sector, where there was a defect lying in the m number given to it, by skipping the defective sector. This effect of shear ago is achieved using the same number of sectors in the spare area located at the end of the recording region (or group of zones), as the number of defects in the recording area. In accordance with the description of the position of the defective sector is replaced with a sliding replacement prescribed burn in the list of primary defects (TTD) management defects (OAD) on disk.

Moving the replacement may not be used for defect, which occurs when the disk usage. When the defective area is not taken into account or ignored, in logical sector numbering is introduced heterogeneity, which means that moving the replacement violates the rules of the file system. Thus, the linear replacement is used for defects that occur during use of the disk in which KIO block containing the defective sector is replaced KIO block in the spare area. The location of the defective KIO block, substituted linear replacement prescribed burn in the list of secondary defects (EDT) management defects on the disk. When using linear replacement, the logical sector numbering resources for defective KIO block is located in the spare area.

Meanwhile, a digital versatile disk storage device with random access (DVD-RAM) in accordance with the standard version 1.0 includes a large number of groups, each of which has a domain user and a spare area, which are constant in each zone. That is, Fig.1A and 1B depict a one-dimensional image of the logical field and a physical region on the part of the disk, respectively, where each area is the physical area contains a protective region of the user, a spare area and a protective area, which are arranged in series. That is, digital links 101, 102, 103, 104 and 105, respectively, refer to the user area, a spare area, the protective region, defective sectors and a spare area, substituted sliding replacement. Protective region 103 is a buffer area, preventing displacement in the direction of state instability, due to differences in speed between the zones, and it is placed in the initial and end positions of each zone.

In the traditional method of managing defects formed a group of one area and the spare area is located at the end of each group. Each group is managed as a management area of the defects. In Fig.1B is not. However, when the spare area is located in each zone, the effect of shift logical sector number is stopped on a spare area of the corresponding zone and the original logical sector number of the next zone is determined without the influence of the number of defects, as shown in Fig.1A. Thus the original logical sector numbers of each of the groups defined by the standard, so that when the data is read from the disk, the management of the original logical sector numbers may not be performed separately, in order to search for the appropriate area.

However, the original logical sector number of each group is determined as described above. Thus, when defects in the group is managed by a sliding replacement, sliding the replacement must be carried out only within the corresponding group. To replace the defects in the group, using a sliding replacement, the number of defective sectors are replaced with slide, must be less than the number of sectors in the spare area of the corresponding group. Thus, the constraint that a large defect arising in the group must be processed within the same group, limits the max which should be replaced by the slipping replacement, more the size of a spare area in a respective group that should be used by the linear replacement spare area in the other group. However, when using the linear replacement defect is not controlled in units of sectors, and in units KIO blocks, i.e., in units of 16 sectors. Thus, the need to spare the region from 16 sectors for processing a single defective sector, which impairs the efficiency of defect management. Also defined by the standard size of a spare area for defect management, so that should also be placed a spare area of a certain size in applications in which defect management using linear replacement cannot be applied, for example in the recording in real time. Therefore deteriorates the efficiency of the use of the square drive.

To solve these problems, a method for managing defects, in accordance with which form a group of a large number of zones and post a spare area on the original site of the group and/or at the end of it.

When formed group of a large number of zones, the original logical sector number for each zone depends on the number of defects. Especially when the spare area is located at the position in at startup. In particular sliding replacement causes disorientation source sector KIO block in the original position of the zone, so fragmented KIO block is located in the boundary zone. When the sectors that are unable to form KIO block on the boundary between zones are ignored to prevent fragmented KIO blocks in each zone, the calculation of the original logical sector number for each zone becomes more difficult.

So in Fig.2A and 2B shows a logical area and the physical area of the disk, in which a large number of zones forms a group; in the group posted a spare area for slipping replacement and changed the original logical sector number of each zone. Each zone contains a protective region of the user and the protective region and a spare region 204 for the group placed in the end of the group. Digital links 201, 202 and 203 respectively denote the user, the protective region and the defective sectors.

When the zone # 0 (first area) is free from defects, the logical sector number which is selected as the source logical sector zone number #1 (second zone), is equal to m+1, and when there are no defects, the original logical sector number of the third zone is equal to n+1, and who is back on the amount equal to the number of bad sectors.

That is, as shown in Fig.2B, when the number of defective sectors in the zone # 0 is equal to i, the logical sector numbers are shifted backwards by the value of i. If there are no defects, as shown in Fig.2A, the end logical sector number, the selected zone #0, is equal to m, however, the final logical sector number allocated in the first area in accordance with the number i of defective sectors is equal to m-i.

Thus, in the standard version 1.0 DVD-RAM, when the size of the user area, placed in the first zone, is m sectors, the original logical sector zone number #1 starts with m+1, but when each zone has a spare area, the original logical sector number of the next zone is shifted to i, as shown in Fig.2B, so that the original logical sector zone number #1 will be m-i+1.

In the next zone (zone #2), when the number of defects that have arisen since the beginning of the group to the same zone (zone #2), equal to j, the original logical sector number is shifted to n-j+1. At this time i and j can optionally include additional spare area to prevent disorientation of the source position KIO block on each boundary between each zone due to the defective sector, i.e. to skip the cue sector number for each zone is shifted back an additional spare area.

So, spare region 204 may be placed at the end of the group or in its original site. When a spare area 204 is placed in the source area of the group, is moving back replacement, which complicates the calculation of the original logical sector number for each zone. In the reverse sliding replacement sliding replacement is performed in the reverse direction, and the remaining sectors, which cannot form KIO block, which occurs at the interface between zones after moving replace, move on to the final area, which complicates the calculation.

Also, when a file system is usually written on the plot, where the logical sector number, the spare area is located on the original site of the group, and the calculation is incorrect and the file system cannot be read due to shift forward a logical sector number.

Thus, when defects are managed at the group established a large number of zones, the original logical sector number is changed, so that recording and/or reproducing device must count the original logical sector number for each zone in order to perform normal recording and/or reproduction from a disk. Between those is/or DVD player, the original logical sector number for each zone of the disk must be read, so the amount of embedded software reproducing device increases.

In Fig.3A and 3B show the case for modifying the original logical sector number for the zone, when complicated the original logical sector number is calculated incorrectly in a certain area because of errors in the construction of the recording and/or reproducing device or errors in the software and hardware. When calculating the logical initial positions of the zones is complex and thus the calculation of the original logical sector numbers is wrong on a particular area, due to errors in the software of the microcomputer, which controls the initial load of a reproducing apparatus, the normal position of the physical region in Fig.3B, corresponding to the position of Fig.3A logical file area in the zone #K, denoted by 301, 302 may be.

As shown in Fig.3B, may be formed area 303, where overlap logical sector numbers, area 304 where an incorrect logical sector number or area 305, where not specified logical sector number. In particular areas 303 and 305 can be easily Nagle designed drive system can be written incorrect position, or normally recorded plot cannot be read due to an incorrect calculation of the original logical sector numbers.

When the file is written correctly and the disk with incorrect entry is recorded and/or reproduced incorrectly in normal recording and/or reproducing device, or normally the disc is controlled in the recording and/or reproducing device in which the original logical sector number is calculated incorrectly, the file can be correctly read and written. In particular, when the defects are placed in the original position, moving the replacement is done in the reverse direction, so that may be incorrect the first position of the logical sector numbers where the file system cannot be read.

In order to solve the above problem, when the original logical sector number for each zone is determined after moving replacement for initial boot or re-boot, the original logical sector number for each zone is stored in the disk structural scope (DCOO), the management of defects. That is, as shown in Fig.4A, the original logical sector number for each zitova position (OAC) and the original logical sector numbers for 35 zones from redundant 256-th byte position of DAO region can be placed in a block of 4 bytes, for example. In Fig.4B defined structure desm, where the original logical sector number in 4 bytes for each zone, which recorded the original logical sector numbers in 24 bytes and the remaining bits are reserved.

When the disk on which is recorded the original logical sector number for each zone is read from or written in another recording and/or reproducing device, can be performed following the operation.

The device only for playback does not require the calculation of the original logical sector numbers. This is because the recording and/or reproducing device writes the data on the basis of incorrect original logical sector numbers, even if the original logical sector number recorded in DAO region, is incorrect, and thus the device only for reproduction should read data based on the stored original logical sector numbers. Thus, the most reliable read data with reference to the original logical sector number recorded in DAO area without complicated calculation and regardless of an incorrect calculation of the original logical sector numbers recorded in DAO area. Thus, in the a, in order to simplify hardware and software.

That is, the device only for playback, as shown in the block diagram in Fig.5, the original logical sector number for each zone is stored in DAO area is read (S 101) and the sampled data based on the read original logical sector number which must be obtained (S 102).

Meanwhile, when the disk is installed in the recording and reproducing device reads the original logical sector number in DAO area, but the original logical sector number is calculated based on the TTD information management defects. If the recorded information is compatible with the information obtained by the calculation, the device performs normal recording and playback, and if not compatible, the device only reads data on the basis of the original logical sector information recorded on the disc. This is due to the fact that the data disk is recorded on the basis of the original logical sector number which is stored in DAO area for each zone. Also the most reliable not to record additional data until it is determined what information is incorrect. Thus, information is compatible, and performed proper operation.

That is, in the recording and reproducing apparatus, as shown in the block diagram in Fig.6, the original logical sector number stored in DAO area is read (S 201) and the original logical sector number for each zone is calculated based on the TTD information management defects (S 202). It then determines whether the original logical sector number read at step 201, similar to the original logical sector numbers calculated in step 202 (S 203), and if so, what are the normal read operations and data playback (S 204). If not, it reported that the disk has an error (S 205), the data is read based on the original logical sector number stored in DAO region (S 206), and the data is not written to disk until you remove the error tool (S 207).

As described above, the original logical sector number corresponding to the information about the original position of each zone is stored in the management of defects, so that the device only for playback does not require the algorithm to calculate the complex original logical sector numbers.

Also, when the stored information is not Soglasie is and errors in the calculation of the original logical sector numbers, created by the recording and reproducing apparatus, which differ from one another, using the stored information about the source position for each zone, and increases the stability of the recorded data.


Claims

1. The recording media that contains multiple zones, with each zone having a user data area for storing user data, the set of zones forms a group for defect management at the group level, and a spare area for replacing defects for the group, as well as pre-specified area, which stores information about the source position for each zone.

2. The recording medium under item 1, wherein the predefined region is a disk structural area scope management defects, which stores information about the source position for each zone.

3. The recording medium under item 1, characterized in that n bytes are distributed in the information about the source position for each zone, where n is an integer, and information about the source position includes the original logical sector number.

4. The recording medium under item 1, characterized in that the spare on, trichosis the fact that information about the source position for the corresponding zone is determined by reference to the number of defects generated from a start of the group up to a preceding zone.

6. The recording medium under item 5, wherein the information about the source position for each zone is determined based on the need to control the initial position of the block error correction at the boundary between each zone caused by a defective sector.

7. The recording medium on p. 3, wherein n is an integer.

8. The recording medium on p. 3, characterized in that the starting logical sector data recorded on 24 bytes and the remaining bytes are reserved.

9. The recording media that contains multiple zones, with each zone having a user data area for storing user data, with the specified set of zones forms a group for defect management, and protection zone, separating multiple zones, and a preset area in which is stored information about the source position for each zone.

10. The recording medium under item 9, wherein the predefined region is a disk structural zone management defects, katerizatsii and re-initializing the recording media.

11. The recording medium under item 9, characterized in that it further comprises a spare area for replacing defects for many areas, while the spare area is used when moving the replacement of defects in many areas.

12. The recording medium under item 9, characterized in that n bytes are allocated in the information about the source position for each zone, where n is an integer, and information about the source position includes a start logical sector number.

13. The recording medium under item 9, wherein the spare area is distributed on the source site and/or the end of the group.

14. The recording medium under item 9, characterized in that information about the source position for the corresponding zone is determined based on the number of defects generated from a start of the group up to a preceding zone.

15. The recording media according to p. 14, wherein the information about the source position for each zone is determined based on the need to control the initial position of the block error correction at the boundary between each zone caused by a defective sector.

16. The recording media according to p. 12, characterized in that the starting logical sector data recorded on 24 bytes and the remaining bytes C disk structural area definition region of the defect management of the recording media.

18. The recording media that contains multiple zones, with each zone having a user data area for storing user data, with the specified set of zones forms a group to manage defects, a spare area for replacing defects for many areas, while the spare area is used when moving the replacement of defects in many areas, and a preset area in which is stored information about the starting position for each zone in the implementation of a sliding replacement.

19. The recording medium under item 18, characterized in that the sliding replacement is performed during initialization or re-initialization of the recording media.

20. The recording medium under item 18, characterized in that n bytes are distributed in the information about the source position for each zone, where n is an integer, and information about the source position includes a start logical sector number.

21. The recording medium under item 18, wherein the spare area is distributed on the source site and/or the end of the group.

22. The recording medium under item 18, characterized in that information about the source position for the corresponding zone is determined based on the number of the Def is the, what information about the source position for each zone is determined based on the need to control the initial position of the block error correction at the boundary between each zone caused by a defective sector of the recording media.

24. The recording media according to p. 20, characterized in that the starting logical sector data recorded on 24 bytes and the remaining bytes n bytes are reserved.

25. The recording medium under item 18, wherein the predefined region is a disk structural area definition region of the defect management of the recording media.

26. The recording medium on p. 25, wherein the defects further includes a list of major defects for storing the position of the defective sector is replaced by a sliding replacement.

27. The recording medium on p. 25, wherein the defects further comprises a list of secondary defects for storing the position of the defective sector is replaced by a linear replacement.

 

Same patents:

The invention relates to the field of optical recording and reproducing video and/or audio data, in particular to the recording medium for storing identification information of the manufacturer of the recording device, changing the contents of the recording media

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The invention relates to the accumulation of information

FIELD: optical data carriers.

SUBSTANCE: for protecting optical disk from recording, information concerning protection from recording is read, which is previously recorded in at least one zone of starting or ending area of data carrier, and it is determined, whether the latter is in state of recording protection. In variant, when carrier is placed in cassette body, and body has aperture for forbidding recording protection of data on disk, it is determined, if recording protection state of recording protection data written on disk is matches with state of recording protection of said aperture, and recording of new data is prevented, if said protection data and aperture position forbid recording. In a variant information concerning recording protection is stored in zones of disk identification of at least one of zones of starting and ending area of carrier.

EFFECT: higher efficiency.

5 cl, 16 dwg

FIELD: optical data carriers.

SUBSTANCE: at least one free area is determined in position, following noted data area of user. Said free area is distributed in backward order from the last element of noted area. When replacing damaged elements of user data it is used from last elements of said free data area.

EFFECT: higher efficiency.

2 cl, 7 dwg

FIELD: data carriers.

SUBSTANCE: data carrier has formatted information for data and manufacturer information, containing identification information for recording device, which forms or modifies data on data carrier, and normalizes information, related to modification of data on carrier. Manufacturer information has individual format, incompatible to other manufacturers.

EFFECT: higher efficiency.

7 cl, 8 dwg

FIELD: data carriers.

SUBSTANCE: at least one free area is determined in location, following said user data area. Said free data area is distributed in reverse order from the last element of noted area. When replacing damaged elements of user data it is used starting from last elements of noted free data area.

EFFECT: higher efficiency.

2 cl, 5 dwg

FIELD: optical data carriers.

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EFFECT: higher efficiency.

2 cl, 9 dwg

FIELD: optical data carriers.

SUBSTANCE: method includes following stages: forming of a group of multiple zones on disk, while a group includes data area of user, including code block with correction of mistakes, distribution of primary, free space for the group. Additional free space is distributed with possible exclusion of discontinuousness of code block with correction of mistakes contained in user data area, at the limit between zones and distribution of it at two zones. Such distribution may be realized by skipping sectors at the end of zone, of their number is less than needed for forming code block with correction of mistakes with correction of primary position of code block with correction of mistakes at limit between zones.

EFFECT: higher efficiency.

3 cl, 9 dwg

FIELD: data carriers.

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EFFECT: higher recording and reproduction stability due to possible processing of larger defects during hot swap, provided by joining several zones within limits of one group.

5 cl, 9 dwg

FIELD: data carriers.

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EFFECT: higher efficiency.

4 cl, 21 dwg

FIELD: data carriers.

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EFFECT: higher efficiency.

5 cl, 59 dwg

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EFFECT: higher speed of operation, higher efficiency.

6 cl, 8 dwg

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