Recording medium, and method and apparatus for recording/reproducing data in/from the recording medium

• US 7,830,767 B2
• Filed: 06/30/2006
• Issued: 11/09/2010
• Est. Priority Date: 06/30/2005
• Status: Expired due to Fees

• Current Assignee: LG Electronics, Inc. (LG Corporation)
• Original Assignee: LG Electronics, Inc. (LG Corporation)
• Inventors: Suh, Sang Woon
• Primary Examiner(s): Young; Wayne R
• Assistant Examiner(s): BUTCHER, BRIAN M
• Application Number:
  US11/477,559
• Publication Number:
  US 20070002699A1
• Time in Patent Office: 1,593 Days
• Field of Search: None
• US Class Current: 369/59.25
• CPC Class Codes: G11B 19/122 involving the detection of an identification or authentication mark record carriers indicating unauthorised or prior use G11B23/28
• CPC Class Codes: G11B 20/1262 with more than one format/standard, e.g. conversion from CD-audio format to R-DAT format
• CPC Class Codes: G11B 2007/0013 for carriers having multiple discrete layers
• CPC Class Codes: G11B 2020/1279 Permanent information and control data stored in the PIC zone of a Blu-Ray disc
• CPC Class Codes: G11B 2220/235 Multilayer discs, i.e. multiple recording layers accessed from the same side
• CPC Class Codes: G11B 2220/2541 Blu-ray discs; Blue laser DVR discs
• CPC Class Codes: G11B 2220/2583 wherein two standards are used on a single disc, e.g. one DVD section and one CD section
• CPC Class Codes: G11B 27/322 used signal is digitally coded
• 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
• CPC Class Codes: G11B 7/0079 Zoned data area, e.g. having different data structures or formats for the user data within data layer, Zone Constant Linear Velocity [ZCLV], Zone Constant Angular Velocity [ZCAV], carriers with RAM and ROM areas
• CPC Class Codes: G11B 7/24038 Multiple laminated recording layers

Abstract

A recording medium, and a method and apparatus for recording/reproducing data in/from the recording medium are disclosed. The recording medium includes one or more recording layers, and a management area including management information, wherein the management information includes specific information indicating a presence of different format and type of recording layer in the recording medium. The management area is located at a specific recording layer. The format represents a different category in a recording layer and the type is classified by read-only or writable in a recording layer.

Claims

1. An optical disc comprising:

a first recording layer of a first format; and

a second recording layer of a second format that is different from the first format,

wherein at least one of the first and second recording layers includes a management area storing management information including,

first information indicating a number of layers of each of the first and second formats;

second information indicating whether the optical disc is a hybrid disc; and

third information indicating a type of each of the first and second recording layers, the type being one of a read-only layer, a write-once layer and a rewritable layer.

2. The optical disc of claim 1, wherein the second format is one of a CD format and a DVD format.

3. The optical disc of claim 1, wherein the first format is a BD format.

4. The optical disc of claim 3, wherein the management area is located on the first recording layer.

5. The optical disc of claim 4, wherein the management area is a PIC (Permanent Information &

Control data) area.

6. The optical disc of claim 4, wherein the management area is a BCA (Burst Cutting Area).

7. The optical disc of claim 4, wherein the second recording layer is located at a higher portion than the first recording layer in the optical disc.

8. The optical disc of claim 1, wherein the third information includes information indicating whether each of the first and second recording layers is the read-only layer or a writable layer and information indicating whether each of the first and second recording layers is the write-once layer or the rewritable layer.

9. The optical disc of claim 8, wherein the first information includes a first field indicating a number of layers of the first format and a second field indicating a number of layers of the second format.

10. The optical disc of claim 1, wherein the type of the first recording layer is one of a BD-ROM (Read Only Memory) type, a BD-R (Recordable) type, and a BD-RE (Rewritable) type.

11. The optical disc of claim 1, wherein the type of the second recording layer is one of a CD-ROM (Read Only Memory) type, a CD-R (Recordable) type, and a CD-RW (Rewritable) type.

12. The optical disc of claim 1, wherein the type of the second recording layer is one of a DVD-ROM (Read Only Memory) type, a DVD Write once type, and a DVD Rewritable type.

25. The optical disc of claim 1, further comprising:

a third recording layer of a third format that is different from the first and second formats, wherein the first information further indicates a number of layers of the third format, the third information further indicates the type of the third recording layer, the type of the third recording layer being one of the read-only layer, the write-once layer and the rewritable layer.

13. A method for reproducing data from a recording medium, the method comprising:

reading management information for indicating formats and types of a first recording layer of a first format and a second recording layer of a second format that is different from the first format from a management area of the recording medium, wherein the management information includes,

first information indicating a number of layers of each of the first and second formats;

second information indicating whether the recording medium is a hybrid disc; and

third information indicating a type of each of the first and second recording layers, the type being one of a read-only layer, a write-once layer and a rewritable layer; and

determining a reproducing mode to reproduce data from at least one of the first and second recording layers based on the management information.

14. The method of claim 13, wherein the management area is located at a lower portion among the first and second recording layers.

15. The method of claim 13, wherein the second format is a CD format.

16. The method of claim 13, wherein the second format is a DVD format.

26. The method of claim 13, wherein the recording medium further includes a third recording layer of a third format that is different from the first and second formats, wherein first information further indicates a number of layers of the third format, the third information further indicates the type of the third recording layer, the type of the third recording layer being one of the read-only layer, the write-once layer and the rewritable layer.

29. The method of claim 13, wherein the third information includes information indicating whether each of the first and second recording layers is the read-only layer or a writable layer and information indicating whether each of the first and second recording layers is the write-once layer or the rewritable layer.

17. A method for recording data in a recording medium, the method comprising:

reading management information for indicating formats and types from a management area of the recording medium, the recording medium including a first recording layer of a first format and a second recording layer of a second format that is different from the first format, wherein the management information includes,

first information indicating a number of layers of each of the first and second formats;

second information indicating whether the recording medium is a hybrid disc; and

third information indicating a type of each of the first and second recording layers, the type being one of a read-only layer, a write-once layer and a rewritable layer; and

determining a recording mode to record data on at least one of the first and second recording layers based on the management information.

18. The method of claim 17, wherein the management area is located at a lower layer among the first and second recording layers.

19. The method of claim 17, wherein the second format is a CD format.

20. The method of claim 17, wherein the second format is a DVD format.

27. The method of claim 17, wherein the recording medium further includes a third recording layer of a third format that is different from the first and second formats, wherein first information further indicates a number of layers of the third format, the third information further indicates the type of the third recording layer, the type of the third recording layer being one of the read-only layer, the write-once layer and the rewritable layer.

30. The method of claim 17, wherein the third information includes information indicating whether each of the first and second recording layers is the read-only layer or a writable layer and information indicating whether each of the first and second recording layers is the write-once layer or the rewritable layer.

21. An apparatus for recording/reproducing data on/from a recording medium, the apparatus comprising:

a pickup unit configured to record/reproduce data on/from the recording medium which includes a first recording layer of a first format and a second recording layer of a second format that is different from the first format;

a control unit configured to control the pickup unit to read management information for indicating formats and types of the first and second recording layers from a management area of the recording medium, wherein the management information includes,

first information indicating a number of layers of each of the first and second formats;

second information indicating whether the recording medium is a hybrid disc; and

third information indicating a type of each of the first recording layer and second recording layer, the type being one of a read-only layer, a write-once layer and a rewritable layer,

wherein the control unit is configured to determine a recording/reproducing mode to record/reproduce data on/from at least one of the first and second recording layers based on the management information; and

a processor configured to process data based on the determined recording/reproducing mode.

22. The apparatus of claim 21, wherein the control unit is configured to read the management information from a recording layer nearer to a surface of the recording medium among the first and second recording layers.

23. The apparatus of claim 21, wherein the second format is a CD format.

24. The apparatus of claim 21, wherein the second format is a DVD format.

28. The apparatus of claim 21, wherein the recording medium further includes a third recording layer of a third format that is different from the first and second formats, wherein first information further indicates a number of layers of the third format, the third information further indicates the type of the third recording layer, the type of the third recording layer being one of the read-only layer, the write-once layer and the rewritable layer.

31. The apparatus of claim 21, wherein the third information includes information indicating whether each of the first and second recording layers is the read-only layer or a writable layer and information indicating whether each of the first and second recording layers is the write-once layer or the rewritable layer.