Write-once optical disc, and method and apparatus for recording/reproducing management information on/from optical disc

• US 7,570,559 B2
• Filed: 11/13/2007
• Issued: 08/04/2009
• Est. Priority Date: 08/05/2003
• Status: Expired due to Fees

• 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:
  US11/984,034
• Publication Number:
  US 20080130443A1
• Time in Patent Office: 630 Days
• Field of Search: 369/53.12, 369/53.1, 369/53.13, 369/53.14, 369/53.15, 369/53.16, 369/53.17
• US Class Current: 369/53.15
• CPC Class Codes: G11B 20/1217 on discs
• 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

Abstract

A write-once optical disc and a method and apparatus for recording management information on the optical disc are provided. The optical disc includes at least one recording layer and a plurality of temporary defect management areas (TDMAs) on the at least one recording layer. At least one of the TDMAs includes an indicator indicating which one of the TDMAs has an in-use status.

Claims

1. An apparatus of recording management information on a recording medium, the recording medium including one or more temporary management areas being used in a designated order for storing the management information before the recording medium is finalized,

wherein the recording medium includes one or more access indicators allocated to one of the temporary management areas and corresponding respectively to the temporary management areas except a first temporary management area being used first, the apparatus comprising:

a pickup unit adapted to directly record data on the recording medium; and

a microcomputer coupled to the pickup unit and configured to control the pickup unit to record onto an access indicator corresponding to a temporary management area, latest temporary disc definition structure (TDDS) information recorded in the temporary management area when the temporary management area becomes available.

2. The apparatus of claim 1, wherein the access indicator includes a plurality of sectors, and the microcomputer is configured to control the pickup unit to record the latest TDDS information into at least one of the sectors.

3. The apparatus of claim 1, wherein the access indicator includes a plurality of sectors, and the microcomputer is configured to control the pickup unit to record the latest TDDS information into each of the plurality of sectors.

4. The apparatus of claim 3, wherein the latest TDDS information contained in the each of the sectors is equal to each other.

5. The apparatus of claim 1, wherein the latest TDDS information being recorded in the access indicator is equal to TDDS information recorded first in the temporary management area.

9. The apparatus of claim 1, wherein each of the one or more access indicators consists of one cluster.

10. The apparatus of claim 1, wherein the one or more access indicators is located at a beginning of the one of the temporary management areas.

11. The apparatus of claim 10, wherein the one of the temporary management areas where the one or more access indicators is located is the first temporary management area.

12. The apparatus of claim 1, further comprising:

a data processor configured to modulate a signal into an appropriate recording signal;

a servo configured to control the pickup unit to precisely record the recording signal to the recording medium; and

a memory configured to temporarily store management information of the recording medium, wherein the microcomputer is configured to control operations of the data processor, the servo and the memory.

13. The apparatus of claim 12, further comprising:

a host device configured to transmit to the microcomputer, via an interface, a write command for recording data onto the recording medium.

6. An apparatus of reproducing data recorded on a recording medium, the recording medium including one or more temporary management areas being used in a designated order for storing management information before the recording medium is finalized, the apparatus comprising:

a pickup unit adapted to directly read data on the recording medium; and

a microcomputer coupled to the pickup unit and configured to

determine which temporary management area among the one or more temporary management areas is currently available for use based on one or more access indicators allocated to one of the temporary management areas, the one or more access indicators corresponding respectively to the temporary management areas except a first temporary management area being used first;

configured to control the pickup unit to read temporary management information from a temporary management area determined currently available for use; and

configured to control the pickup unit to reproduce data recorded on the recording medium based on the read temporary management information, wherein the access indicator corresponding to the temporary management area determined currently available for use contains latest temporary disc definition structure (TDDS) information recorded in the temporary management area determined currently available for use when the temporary management area became available.

7. The apparatus of claim 6, wherein the access indicator corresponding to the temporary management area determined currently available for use includes a plurality of sectors, and each of the sectors contains the latest TDDS information.

8. The apparatus of claim 6, wherein the latest TDDS information contained in the access indicator is equal to TDDS information recorded first in the temporary management area determined currently available for use.

14. The apparatus of claim 6, wherein each of the one or more access indicators consists of one cluster.

15. The apparatus of claim 6, wherein the one or more access indicators is located at a beginning of the one of the temporary management areas.

16. The apparatus of claim 6, wherein the one of the temporary management areas where the one or more access indicators is located is the first temporary management area.

17. The apparatus of claim 6, further comprising:

a data processor configured to convert a reproduction signal received from the pickup unit into an appropriate signal value;

a servo configured to control the pickup unit to precisely read the reproduction signal from the recording medium; and

a memory configured to temporarily store management information of the recording medium, wherein the microcomputer is configured to control operations of the data processor, the servo and the memory.

18. The apparatus of claim 17, further comprising:

a host device configured to transmit to the microcomputer, via an interface, a reproducing command for reproducing data from the recording medium.

19. A method for recording management information on a recording medium, the recording medium including one or more temporary management areas being used in a designated order for storing management information before the recording medium is finalized,

wherein the recording medium includes one or more access indicators allocated to one of the temporary management areas and corresponding respectively to the temporary management areas except a first temporary management area being used first, and the method comprises a step of:

recording, onto an access indicator corresponding to a temporary management area, latest temporary disc definition structure (TDDS) information recorded in the temporary management area when the temporary management area becomes available.

20. The method of claim 19, wherein the access indicator includes a plurality of sectors, and the step of recording records the latest TDDS information into each of the sectors.

21. The method of claim 19, wherein the latest TDDS being recorded in the access indicator is equal to TDDS information recorded first in the temporary management area.

22. The method of claim 19, wherein each of the one or more access indicators consists of one cluster.

23. The method of claim 19, wherein the one or more access indicators is located at a beginning of the one of the temporary management areas.

24. The method of claim 23, wherein the one of the temporary management areas where the one or more access indicators is located is the first temporary management area.

25. A method for reproducing data recorded on a recording medium, the recording medium including one or more temporary management areas being used in a designated order for storing management information before the recording medium is finalized, the method comprising steps of:

determining which temporary management area among the one or more temporary management areas is currently available for use based on one or more access indicators allocated to one of the temporary management areas, the one or more access indicators corresponding respectively to the temporary management areas except a first temporary management area being used first;

reproducing temporary management information from a temporary management area determined currently available for use; and

reproducing data recorded on the recording medium based on the read temporary management information, wherein the access indicator corresponding to the temporary management area determined currently available for use contains latest temporary disc definition structure (TDDS) information recorded in the temporary management area when the temporary management area became available.

26. The method of claim 25, wherein the access indicator corresponding to the temporary management area determined currently available for use includes a plurality of sectors, and each of the sectors contains the latest TDDS information.

27. The method of claim 25, wherein the latest TDDS information contained in the access indicator is equal to TDDS information recorded first in the temporary management area determined currently available for use.

28. The method of claim 25, wherein each of the one or more access indicators consists of one cluster.

29. The method of claim 25, wherein the one or more access indicators is located at a beginning of the one of the temporary management areas.

30. The method of claim 29, wherein the one of the temporary management areas where the one or more access indicators is located is the first temporary management area.

31. A recording medium for recording management information on the recording medium, the recording medium comprising:

one or more temporary management areas being used in a designated order for storing management information before the recording medium is finalized; and

one or more access indicators allocated to one of the temporary management areas, the one or more access indicators corresponding respectively to the temporary management areas except a first temporary management area being used first, wherein each of the one or more access indicators stores thereon latest temporary disc definition structure (TDDS) information recorded in the corresponding temporary management area when the corresponding temporary management area becomes available.

32. The recording medium of claim 31, wherein latest TDDS information stored in an access indicator is equal to TDDS information recorded first in a temporary management area corresponding to the access indicator.

33. The recording medium of claim 31, wherein each of the one or more access indicators consists of one cluster.

34. The recording medium of claim 31, wherein the one or more access indicators is located at a beginning of the one of the temporary management areas.

35. The recording medium of claim 34, wherein the one of the temporary management areas where the one or more access indicators is located is the first temporary management area.