Recording medium, and method and apparatus of recording and reproducing data on the same

• US 7,500,137 B2
• Filed: 09/13/2005
• Issued: 03/03/2009
• Est. Priority Date: 09/14/2004
• Status: Active Grant

• Current Assignee: LG Electronics, Inc. (LG Corporation)
• Original Assignee: LG Electronics, Inc. (LG Corporation)
• Inventors: Park, Yong Cheol
• Primary Examiner(s): Duncan; Marc
• Application Number:
  US11/224,107
• Publication Number:
  US 20060077816A1
• Time in Patent Office: 1,267 Days
• Field of Search: 714/8, 714/5
• US Class Current: 714/6.13
• CPC Class Codes: G11B 20/10 Digital recording or reproducing
• 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 2020/1873 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 2220/20 Disc-shaped record carriers
• CPC Class Codes: G11B 2220/218 Write-once discs
• CPC Class Codes: G11B 2220/2541 Blu-ray discs; Blue laser DVR discs
• CPC Class Codes: G11B 27/3027 used signal is digitally coded

Abstract

An apparatus of recording data on a recording medium includes a pickup unit and a microcomputer. The pickup unit records data in a plurality of data frames included in a cluster. The microcomputer controls the pickup unit to record status information within the cluster, which indicates a status of the data being recorded in each data frame. In addition, the microcomputer further controls the pickup unit to record previous location information within the cluster when the cluster is determined to be a replacement cluster. The previous location information indicates a previous location of an original cluster associated with the replacement cluster.

Claims

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

recording data within a plurality of data frames included in a cluster;

recording status information within the cluster for each data frame, the status information indicating a status of the data recorded in each data frame; and

recording previous location information within the cluster when the cluster is determined to be a replacement cluster, the previous location information indicating a previous location of an original cluster associated with the replacement clusters,

wherein the cluster includes an address field, the address field includes address unit numbers, a plurality of flag bits representing the status and previous location information, and error-correction parities for each address unit number.

2. The method of claim 1, wherein the status information indicates that the data recorded in each data frame represents any one of valid data, real-time data, padding data, and invalid data.

3. The method of claim 1, wherein the status information indicates that the data recorded in each data frame represents any one of valid data, updated data, padding data, and invalid data.

4. The method of claim 1, wherein the status information for each data frame is represented by two flag bits.

5. The method of claim 1, wherein the previous location information indicates a first sector number of the original cluster.

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

recording data within a plurality of data frames included in a cluster;

recording status information within the cluster for each data frame, the status information indicating a status of the data recorded in each data frame;

recording first identification information within the cluster, the first identification information identifying the cluster as a replacement cluster or an original cluster; and

recording previous location information within the cluster, the previous location information indicating a previous location of an original cluster associated with the cluster when the cluster is determined to be a replacement cluster,

wherein the location information is set to zero when the cluster is determined to be an original cluster.

7. The method of claim 6, further comprising:

recording second identification information within the cluster when the cluster is determined to be a replacement cluster, the second identification information identifying the cluster as a replacement cluster created upon defective area detection or logical overwrite (LOW).

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

recording data within a plurality of data frames included in a cluster;

recording status information within the cluster for each data frame, the status information indicating a status of the data recorded in each data frame, wherein the status information indicates that the data recorded in each data frame represents any one of valid data, real-time data, padding data, and invalid data; and

recording previous location information within the cluster, the previous location information indicating a previous location of an original cluster associated with the cluster when the cluster is determined to be a replacement cluster;

wherein, if the status information for data within a data frame indicates the real-time data, the data within the data frame is discarded when being replaced in a replacement cluster.

9. The method of claim 8, further comprising:

recording first identification information within the cluster, the first identification information identifying the cluster as a replacement cluster or an original cluster.

10. The method of claim 8, wherein, if the status information for data within a data frame indicates the valid data, the data within the data frame is conserved when being replaced in a replacement cluster.

11. A method of reproducing a cluster recorded on a recording medium, the cluster having a plurality of data frames, the method comprising:

extracting status information from the cluster, the status information indicating a status of data recorded in each data frame; and

reproducing the data recorded in each data frame based upon the extracted status information, wherein the status information indicates that the data recorded in each data frame represents any one of valid data, real-time data, padding data, and invalid data,

wherein, if the status information for data within a data frame indicates the padding data, the data within the data frame is discarded.

12. The method of claim 11, wherein, if the status information for data within a data frame indicates the valid or real-time data, an entire portion of the data within the data is reproduced.

13. The method of claim 11, further comprising:

extracting previous location information from the cluster when the status information for data within a data frame indicates the invalid data, the previous location information indicating a previous location of an original cluster associated with the cluster; and

reproducing data within the original cluster using the previous location information.

14. An apparatus of recording data on a recording medium including a cluster having a plurality of data frames, the apparatus comprising:

a pickup unit configured to record data in the data frames; and

a microcomputer, operatively coupled to the pickup unit, configured to control the pickup unit to record status information within the cluster, the status information indicating a status of the data being recorded in each data frame, wherein the microcomputer further controls the pickup unit to record previous location information within the cluster when the cluster is determined to be a replacement cluster, the previous location information indicating a previous location of an original cluster associated within the replacement cluster,

wherein the cluster includes an address field, the address field includes address unit numbers, a plurality of flag bits representing the status and previous location information, and error-correction parities for each address unit number.

15. The apparatus of claim 14, wherein the status information indicates that the data recorded in each data frame represents any one of valid data, real-time data, padding data, and invalid data.

16. The apparatus of claim 14, wherein the status information indicates that the data recorded in each data frame represents any one of valid data, updated data, padding data, and invalid data.

17. An apparatus of reproducing a cluster recorded on a recording medium, the cluster having a plurality of data frames, the apparatus comprising:

a pickup unit configured to reproduce data recorded in the data frames; and

a microcomputer, operatively coupled to the pickup unit, configured to control the pickup unit to extract status information from the cluster and to reproduce data recorded in each data frame based upon the extracted status information, wherein the status information indicates that the data recorded in each data frame represents any one of valid data, real-time data, padding data, and invalid data and wherein, if the status information for data within a data frame indicates the padding data, the microcomputer discard data within the data frame.

18. The apparatus of claim 17, wherein, if the status information for data within a data frame indicates the valid or real-time data, the microcomputer reproduces an entire portion of the data within the data.

19. The apparatus of claim 17, the microcomputer further controls the pickup unit to extract previous location information from the cluster when the status information for data within a data frame indicates the invalid data, the previous location information indicating a previous location of an original cluster associated with the cluster;

and to reproduce data within the original cluster using the previous location information.

20. A recording medium comprising:

a plurality of clusters, each cluster comprising;

a plurality of data frames;

status information for each data frame, the status information indicating a status of the data recorded in each data frame; and

previous location information when each cluster is determined to be a replacement cluster, the previous location information indicating a previous location of an original cluster associated with the replacement clusters,

wherein the cluster further includes an address field, the address field includes address unit numbers, a plurality of flag bits representing the status and previous location information, and error-correction parities for each address unit number.