Write once optical disc, and method and apparatus for recovering disc management information from the write once optical disc

• US 7,663,997 B2
• Filed: 05/07/2004
• Issued: 02/16/2010
• Est. Priority Date: 05/09/2003
• Status: Active Grant

• Current Assignee: LG Electronics, Inc. (LG Corporation)
• Original Assignee: LG Electronics, Inc. (LG Corporation)
• Inventors: Park, Yong Cheol
• Primary Examiner(s): Hindi; Nabil Z
• Application Number:
  US10/840,357
• Publication Number:
  US 20040223440A1
• Time in Patent Office: 2,111 Days
• Field of Search: 369/53.14, 369/53.15, 369/53.17, 369/53.12, 369/53.13, 369/53.16
• US Class Current: 369/53.15
• CPC Class Codes: G11B 20/10009 Improvement or modification of read or write signals
• CPC Class Codes: G11B 20/1883 Methods for assignment of alternate areas for defective areas
• CPC Class Codes: G11B 2020/1873 Temporary defect structures for write-once discs, e.g. TDDS, TDMA or TDFL
• CPC Class Codes: G11B 2220/20 Disc-shaped record carriers
• CPC Class Codes: G11B 2220/218 Write-once discs
• CPC Class Codes: G11B 2220/235 Multilayer discs, i.e. multiple recording layers accessed from the same side
• CPC Class Codes: G11B 2220/237 having exactly two recording layers
• CPC Class Codes: G11B 2220/2541 Blu-ray discs; Blue laser DVR discs
• CPC Class Codes: G11B 27/22 Means responsive to presence or absence of recorded information signals
• CPC Class Codes: G11B 27/329 on a disc [VTOC]
• CPC Class Codes: G11B 7/00375 arrangements for detection of physical defects, e.g. of recording layer
• CPC Class Codes: G11B 7/00736 Auxiliary data, e.g. lead-in, lead-out, Power Calibration Area [PCA], Burst Cutting Area [BCA], control information sector headers or adresses in prepits G11B7/00745; address data in track wobble G11B7/24082

Abstract

A write once optical recording medium and a method and apparatus for storing and recovering defect management information to and from the write once optical recording medium are provided. The recording medium includes at least one recording layer, and a data area on the recording layer. The data area includes at least one spare area and a user data area. The spare area contains at least one replacement cluster, each of the replacement clusters storing therein address information of a corresponding defective cluster.

Claims

1. A method of managing a recording medium including a lead-in area and a data area, the data area including a user data area and a spare area, the spare area including a replacement block, the method comprising:

recording data associated with a defective block of the recording medium in the replacement block of the spare area, wherein the replacement block includes an address area containing address information of the defective; and

recording, into a temporary defect management area assigned to at least one of the lead-in area and the spare area, temporary defect list information including the address information of the defective block and address information of the replacement block.

2. The method of claim 1, wherein the replacement block includes a user control data area, a replacement user data area, and the address area, and the step of recording comprises:

recording the address information of the defective block into the address area of the replacement block.

3. The method of claim 1, wherein the address information of the defective block is a first physical sector number of the defective block.

4. The method of claim 1, wherein the defective block is one of a defective block in the spare area and a defective block in the user data area.

5. The method of claim 1, wherein the recording medium is a write once optical disc.

15. The method of claim 1, wherein each of the defective and replacement blocks has a size of at least one cluster.

6. An apparatus for recording data to a recording medium, comprising:

a pickup unit configured to record data to the recording medium, the recording medium including a lead-in area and a data area, the data area including a user data area and a spare area, the spare area including a replacement block; and

a controller configured to control the pickup unit to record data associated with a defective block of the recording medium in the replacement block of the spare area, wherein the replacement block includes an address area containing address information of the defective block, the controller further configured to control the pickup unit to record, into a temporary defect management area assigned to at least one of the lead-in area and the spare area, temporary defect list information including the address information of the defective block and address information of the replacement block.

7. The apparatus of claim 6, wherein the replacement block includes a user control data area, a replacement user data area, and the address area, and the controller is configured to control the pickup unit to record the address information of the defective block into the address area of the replacement block.

8. The apparatus of claim 6, wherein the controller is configured to control the pickup unit to record a first physical sector number of the defective block as the address information of the defective block.

9. The apparatus of claim 6, wherein the controller is configured to control the pickup unit to record one of address information of a defective block in the spare area and address information of a defective block in the user data area as the address information of the defective block.

16. The apparatus of claim 6, wherein each of the defective and replacement blocks has a size of at least one cluster.

10. An apparatus for reproducing data from a recording medium, comprising:

a pickup unit configured to reproduce data from the recording medium, the recording medium including a lead-in area and a data area, the data area including a user data area and a spare area, the spare area including a replacement block; and

a controller configured to control the pickup unit to reproduce, from a temporary defect management area assigned to at least one of the lead-in area and the spare area, temporary defect list information including address information of a defective block replaced by the replacement block and address information of the replacement block; and

configured to control the pickup reproduce data associated with the defective block from the replacement block of the spare area based on the reproduced temporary defect list information, wherein the replacement block includes an address area containing address information of the defective block.

11. The apparatus of claim 10, wherein includes a user control data area, a replacement user data area, and the address area, and the controller is configured to reproduce the address information of the defective block from the address area of the replacement block.

12. The apparatus of claim 10, wherein the controller is configured to reproduce, from the replacement block, a first physical sector number of the defective block as the address information of the defective block.

13. The apparatus of claim 10, wherein the address information of the defective block is one of address information of a defective block in the spare area and address information of a defective block in the user data area.

14. The apparatus of claim 10, wherein each of the defective and replacement blocks has a size of at least one cluster.

17. A method of reproducing data from a recording medium, the recording medium including a lead-in area and a data area, the data area including a user data area and a spare area, the spare area including a replacement block, the method comprising steps of:

(a) reproducing, from a temporary defect management area assigned to at least one of the lead-in area and the spare area, temporary defect list information including address information of a defective block replaced by the replacement block and address information of the replacement block; and

(b) reproducing data associated with the defective block from the replacement block of the spare area based on the reproduced temporary defect list information, wherein the replacement block includes an address area, and the address area contains the address information of the defective block.

18. The method of claim 17, wherein the replacement block includes a user control data area, a replacement user data area, and the address area, and the step of (b) reproduces the address information of the defective block from the address area of the replacement block.

19. The method of claim 17, wherein the step of (b) reproduces, from the replacement block, a first physical sector number of the defective block as the address information of the defective block.

20. The method of claim 17, wherein each of the defective and replacement blocks has a size of at least one cluster.