Method and apparatus for recording data on and reproducing data from a recording medium and the recording medium

• US 20060023597A1
• Filed: 08/01/2005
• Published: 02/02/2006
• Est. Priority Date: 08/02/2004
• Status: Active Grant

• Current Assignee: LG Electronics, Inc. (LG Corporation)
• Original Assignee: LG Electronics, Inc. (LG Corporation)
• Inventors: Park, Yong Cheol
• Granted Patent: US 7,478,288 B2
• Time in Patent Office: Days
• US Class Current: 369/53.200
• CPC Class Codes: G11B 20/10 Digital recording or reproducing
• CPC Class Codes: G11B 20/18 Error detection or correction; Testing , e.g. of drop-outs
• CPC Class Codes: G11B 20/1883 Methods for assignment of alternate areas for defective areas
• CPC Class Codes: G11B 2020/1826 wherein a defect list or error map is generated
• CPC Class Codes: G11B 2020/1873 Temporary defect structures for write-once discs, e.g. TDDS, TDMA or TDFL
• CPC Class Codes: G11B 2020/1893 using linear replacement to relocate data from a defective block to a non-contiguous spare area, e.g. with a secondary defect list [SDL]
• CPC Class Codes: G11B 2020/1896 using skip or slip replacement to relocate data from a defective block to the next usable block, e.g. with a primary defect list [PDL]
• CPC Class Codes: G11B 2220/20 Disc-shaped record carriers

Abstract

In an embodiment of the method of recording data on a recording medium, a management information entry is recorded in a temporary defect management area of the recording medium. The management information entry indicates a portion of a user data area of the recording medium, and the management information entry includes first and second status indicators indicating a status of the management information entry. For example, the first status indicator may indicate whether replacement is being performed with respect to the indicated portion of the user data area, and the second status indicator may indicate a type of replacement.

Claims

1. A method of recording data on a recording medium, comprising:

recording a management information entry in a temporary defect management area of the recording medium, the management information entry indicating a portion of a user data area of the recording medium, and the management information entry including first and second status indicators indicating a status of the management information entry.

2. The method of claim 1, wherein the first status indicator indicates whether replacement is being performed with respect to the indicated portion of the user data area.

3. The method of claim 2, wherein if the first status indicator indicates that replacement is being performed, the management information entry further indicates a replacement portion of the recording medium that replaces the indicated portion of the user data area.

4. The method of claim 3, wherein if the first status indicator indicates that replacement is being performed, the second status indicator indicates a type of replacement.

5. The method of claim 3, wherein the types of replacement include single data unit replacement and continuous data unit replacement.

6. The method of claim 5, wherein a data unit is a cluster.

7. The method of claim 6, wherein the management information entry indicates the indicated portion by providing a first physical sector number of the indicated portion and indicates the indicated replacement portion by providing a first physical sector number of the indicated replacement portion.

8. The method of claim 5, wherein if the second status indicator indicates the type of replacement is continuous, then the indicated portion is one of a first data unit in a sequence of data units and a last data unit in the sequence of data units and the indicated replacement portion is a corresponding one of a first replacement data unit in a sequence of replacement data units and a last replacement data unit in the sequence of replacement data units.

9. The method of claim 5, wherein the temporary defect management area has a fixed size.

10. The method of claim 9, wherein the temporary defect management area is located at a lead-in area of the recording medium.

11. The method of claim 5, wherein the temporary defect management area is located in a spare area of the recording medium.

12. The method of claim 11, wherein the temporary defect management area located in the spare area is in addition to another temporary defect management area located in a lead-in area of the recording medium.

13. The method of claim 11, wherein the temporary defect management area has a size that varies based on a size of the spare area.

14. A method of recording data on a recording medium, comprising:

recording at least a first management entry in a temporary defect management area of the recording medium, the first management entry identifying a cluster in a user data area of the recording medium, including a first status indicator indicating that the identified cluster is being replaced, including a second status indicator indicating whether the replacement is at least one of a single cluster replacement and continuous cluster replacement, and identifying a replacement cluster.

15. The method of claim 14, wherein if the second status indicator indicates continuous cluster replacement, the identified cluster is one of a first cluster and a last cluster in a sequence of clusters being replaced, and the identified replacement cluster is a corresponding one of a first replacement cluster and a last replacement cluster in a sequence of replacement clusters.

16. The method of claim 14, wherein if the second status indicator indicates continuous cluster replacement and the identified replacement cluster is the first cluster in the sequence of replacement cluster, the method further comprises:

recording a second management entry in a temporary defect management area of the recording medium, the second management entry identifying a last cluster in a user data area of the recording medium, including a first status indicator indicating that the identified last cluster is being replaced, including a second status indicator indicating continuous cluster replacement, and identifying the last replacement cluster.

17. The method of claim 14, wherein the first management entry identifies the identified cluster by providing a first physical sector number of the identified cluster and identifies the identified replacement cluster by providing a first physical sector number of the identified replacement cluster.

18. A method of reproducing a recording medium, comprising:

reproducing a management information entry in a temporary defect management area of the recording medium, the management information entry indicating a portion of a user data area of the recording medium, and the management information entry including first and second status indicators indicating a status of the management information entry; and

reproducing data from the user data area based on the reproduced management information entry.

19. A recording medium having a data structure for managing replacement of portions of a user data area of the recording medium, comprising:

a temporary defect management area of the recording medium including at least one management information entry, the management information entry indicating a portion of a user data area of the recording medium, and the management information entry including first and second status indicators indicating a status of the management information entry.

20. A method of recording data in a recording medium, comprising:

stream recording data in consecutive clusters of a user data area of the recording medium such that a defective portion of the user data area is skipped and recording continues in sequence at a next available recordable portion of the user data area.

21. The method of claim 20, wherein the stream recording step stream records real-time data.

22. The method of claim 20, further comprising:

recording a management information entry in a temporary defect management area of the recording medium, the management information entry identifying the skipped recorded portion.

23. The method of claim 20, wherein the stream recording step records the data in clusters such that defective clusters of the user data area are skipped and recording continues in sequence at a next available non-defective cluster.

24. The method of claim 23, further comprising:

recording a management information entry in a temporary defect management area of the recording medium, the management information entry indicating at least one skipped defective cluster.

25. A method of reproducing a recording medium, comprising:

reproducing a management information entry indicating a defective portion of a user data area of the recording medium; and

reproducing stream recorded data from the user data area based on the management information entry such that the defective portion is skipped and reproduction continues at a next non-defective portion of the user data area.

26. A method of recording data in a recording medium, comprising:

receiving a command to record data in an order of consecutive data units; and

recording the data in the order of consecutive data units on the recording medium such that defective and recorded areas of the recording medium are skipped and recording continues at a next non-defective and recordable area.

27. The method of claim 26, wherein the recording step records the data in the user data area.

28. The method of claim 27, wherein the recording step records the data beginning at a next unrecorded and non-defective area of the user data area following a next recordable area indicated in the received command if the indicated next recordable area is one of a recorded area and a defective area.

29. The method of claim 26, wherein the recording step records the data in a spare area of the recording medium.

30. The method of claim 26, wherein a data unit is a cluster.

31. The method of claim 26, further comprising:

recording management information in a temporary defect management area of the recording medium, the management information indicating a mapping between the skipped area and the non-defective and recordable area.

32. The method of claim 31, wherein the recording management information step records a continuous re-allocated defect entry associated with the recording the data step.

33. A method of reproducing a recording medium, comprising:

reproducing a management information from a temporary defect management area of the recording medium, the management information indicating a first range of clusters of a user data area of the recording medium that has been continuous replacement recorded and indicating a second range of clusters of the recording medium serving as the replacement recorded area; and

reproducing data based on the reproduced management information.

34. A recording medium having a data structure for managing replacement of portions of a user data area of the recording medium, comprising:

a temporary defect management area of the recording medium including management information, the management information indicating a first range of clusters of a user data area of the recording medium that has been continuous replacement recorded and indicating a second range of clusters of the recording medium serving as the replacement recorded area.