Method and apparatus for recording or reproducing on or from optical medium using SBM information

• US 7,554,891 B2
• Filed: 12/23/2003
• Issued: 06/30/2009
• Est. Priority Date: 03/04/2003
• Status: Active Grant

• Current Assignee: LG Electronics, Inc. (LG Corporation)
• Original Assignee: LG Electronics, Inc. (LG Corporation)
• Inventors: Kim, Sung Dae, Park, Yong Cheol
• Primary Examiner(s): Feild; Joseph
• Assistant Examiner(s): HALEY, JOSEPH R
• Application Number:
  US10/744,214
• Publication Number:
  US 20040174793A1
• Time in Patent Office: 2,016 Days
• Field of Search: None
• US Class Current: 369/53.17
• 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 2020/10907 using pseudo-overwriting, i.e. virtually or logically overwriting data on WORM media by remapping recorded blocks to alternate areas
• CPC Class Codes: G11B 2020/1288 Formatting by padding empty spaces with dummy data, e.g. writing zeroes or random data when de-icing optical discs
• 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 2220/2541 Blu-ray discs; Blue laser DVR discs
• CPC Class Codes: G11B 27/329 on a disc [VTOC]
• 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 method and apparatus for recording on an optical recording medium, including the recording of management information, are described as a standard for the write-once Blu-ray disc. The management information is recorded in a management area of the disc, such as a temporary defect management area (TDMA), and includes record status information and update information. The record status information is a space bitmap (SBM) indicating whether a recording operation has been performed for a predetermined area of the disc, and the update information is SBM update information indicating whether the record status information is to be continuously managed. The SBM update information controls the state of an SBM-on/off function for each of a plurality of recording areas and may be in the form of either start position information and length information corresponding to the respective areas or an SBM update flag. The SBM update information is recorded in the TDMA and is stored in a memory of an optical disc recording/reproducing device for use during recording and reproducing operations. At the time of recording in the predetermined area, an SBM-on state enables a logical overwriting operation to be performed as necessary.

Claims

1. A method for recording data on an optical recording medium including a user data area and a non-user data area, the non-user data area including a temporary defect management area (TDMA) and a final defect management area (DMA), the method comprising steps of:

recording management information in the TDMA of the optical recording medium, the management information including

bitmap data indicating whether or not each recording unit of the user data area is a recorded area, and

start position information indicating a start address of the user data area to which the bitmap data is applied,

wherein the bitmap data includes a bitmap allocating only one bit to each recording unit; and

transferring the management information from the TDMA to the DMA at finalization of the optical recording medium.

2. The method as claimed in claim 1, wherein the optical recording medium is a write-once optical recording medium.

3. The method as claimed in claim 1, wherein the recording unit is a cluster and the bitmap data contains one bit for every cluster of the user data area.

4. The method as claimed in claim 1, wherein the management information further includes information indicating whether a bitmap data exists for the non-user data area of the recording medium.

5. The method as claimed in claim 1, wherein the management information further includes position information of a first usable area for performing optical power calibration.

6. The method as claimed in claim 1, wherein the management information further includes layer information indicating a layer number to which the bitmap data is applied.

7. The method as claimed in claim 1,wherein the management information further includes start address information of the bitmap data.

16. The method as claimed in claim 1, wherein the TDMA is located in a lead-in area or a spare area of the optical recording medium.

8. An apparatus for recording data on an optical recording medium including a user data area and a non-user data area, the non-user data area including a temporary defect management area (TDMA) and a final defect management area (DMA), the apparatus comprising:

a recording device configured to record management information in the TDMA of the optical recording medium,

wherein the management information includes bitmap data indicating whether or not each recording unit of the user data area is a recorded area, and start position information indicating a start address of the user data area to which the bitmap data is applied, and

wherein the bitmap data includes a bitmap allocating only one bit to each recording unit;

the recording device further configured to transfer the management information from the TDMA to the DMA at finalization of the optical recording medium.

9. The apparatus as claimed in claim 8, wherein the management information further includes layer information indicating a layer number to which the bitmap data is applied.

10. The apparatus as claimed in claim 8, wherein the management information further includes start address information of the bitmap data.

11. The apparatus as claimed in claim 8, wherein the recording unit is a cluster and the bitmap data contains one bit for every cluster of the user data area.

17. The apparatus as claimed in claim 8, wherein the TDMA is located in a lead-in area or a spare area of the optical recording medium.

12. An apparatus for reproducing data from an optical recording medium including a user data area and a non-user data area, the non-user data area including a temporary defect management area (TDMA) and a final defect management area (DMA), the apparatus comprising:

a reproducing device configured to reproduce management information, which has been transferred from the TDMA to the DMA at finalization of the optical recording medium, from the DMA of the optical recording medium,

wherein the management information includes bitmap data indicating whether or not each recording unit of the user data area is a recorded area, and start position information indicating a start address of the user data area to which the bitmap data is applied, and

wherein the bitmap data includes a bitmap allocating only one bit to each recording unit.

13. The apparatus as claimed in claim 12, wherein the management information further includes layer information indicating a layer number to which the bitmap data is applied.

14. The apparatus as claimed in claim 12, wherein the management information further includes start address information of the bitmap data.

15. The apparatus as claimed in claim 12, wherein the recording unit is a cluster and the bitmap data contains one bit for every cluster of the user data area.

18. The apparatus as claimed in claim 12, wherein the TDMA is located in a lead-in area or a spare area of the optical recording medium.