Method and apparatus for recording data on and reproducing data from a recording medium and the recording medium

• US 7,594,147 B2
• Filed: 12/16/2008
• Issued: 09/22/2009
• Est. Priority Date: 08/02/2004
• Status: Active Grant

• Current Assignee: LG Electronics, Inc. (LG Corporation)
• Original Assignee: LG Electronics, Inc. (LG Corporation)
• Inventors: Park, Yong Cheol
• Primary Examiner(s): Ton; David
• Application Number:
  US12/314,736
• Publication Number:
  US 20090122671A1
• Time in Patent Office: 280 Days
• Field of Search: 369/53.15, 369/47.14, 369/53.17, 369/47.1, 714/42, 714/5, 714/718, 714/710
• US Class Current: 714/710
• CPC Class Codes: G11B 20/10 Digital recording or reproducing
• CPC Class Codes: G11B 20/18 Error detection or correction; Testing , e.g. of drop-outs
• CPC Class Codes: G11B 20/1883 Methods for assignment of alternate areas for defective areas
• CPC Class Codes: G11B 2020/1826 wherein a defect list or error map is generated
• 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 2020/1896 using skip or slip replacement to relocate data from a defective block to the next usable block, e.g. with a primary defect list [PDL]
• CPC Class Codes: G11B 2220/20 Disc-shaped record carriers

Abstract

In an embodiment of the method of recording data on a recording medium, a next recordable position of a recording range is notified to a host. A replacement for data requested to be recorded is performed at a first area of the recording range by recording sequentially the data requested onto a second area starting from the next recordable position instead of the first area. The first area has recorded data and the second area does not have recorded data. A management information entry is recorded onto a temporary defect management area of the recording medium. The management information entry indicates the first and second areas and includes first and second status indicators indicating a status of the management information entry. The first status indicator indicates that the replacement is performed and the second status indicator indicates a type of the replacement.

Claims

1. A method of recording data onto a recording medium having a user data area divided into one or more recording ranges, comprising steps of:

(a) notifying a next recordable position of a recording range to a host;

(b) performing a replacement for data requested to be recorded at a first area of the recording range by recording sequentially the data requested onto a second area starting from the next recordable position instead of the first area, the first area having recorded data and the second area not having recorded data; and

(c) recording onto a temporary defect management area of the recording medium a management information entry, the management information entry indicating the first and second areas and including first and second status indicators indicating a status of the management information entry, the first status indicator indicating that the replacement is performed and the second status indicator indicating a type of the replacement.

2. The method of claim 1, wherein the type of the replacement is one of single data unit replacement type and continuous data unit replacement type.

3. The method of claim 2, wherein a data unit is a cluster.

4. The method of claim 3, wherein the next recordable position is an unrecorded cluster directly subsequent after the last sector having recorded data in the recording range.

5. The method of claim 4, wherein the next recordable position is moved in accordance with the step of (b) without notifying to the host.

6. The method of claim 1, wherein the management information entry indicates the first and second areas by including a first physical sector number of the first area and a first physical sector number of the second area.

7. The method of claim 6, wherein if the second status indicator indicates the type of the replacement is continuous, then the step of (c) records a first management information entry and a second management information entry, the first management information entry including information indicating a first data unit in the first area and a first data unit in the second area and the second management information entry including information indicating a last data unit in the first area and a last data unit in the second area.

8. An apparatus for recording data onto a recording medium having a user data area divided into one or more recording ranges, comprising:

a interface unit configured to communicate with an external host;

a pickup configured to write/read data to/from the recording medium directly;

a data processor configured to receive and recover a signal from the recording medium or modulate a signal to be recorded into a signal that can be written on the recording medium;

a servo configured to control the pickup to read/write accurately a signal from/to the recording medium;

a memory configured to store information temporarily; and

a microcomputer configured to notify a next recordable position of a recording range to the host and control the interface unit, the pickup, the data processor, the servo and the memory such that the apparatus;

performs a replacement for data requested to be recorded at a first area of the recording range by recording sequentially the data requested onto a second area starting from the next recordable position instead of the first area, the first area having recorded data and the second area not having recorded data; and

records onto a temporary defect management area of the recording medium a management information entry, the management information entry indicating the first and second areas and including first and second status indicators indicating a status of the management information entry, the first status indicator indicating that the replacement is performed and the second status indicator indicating a type of the replacement.

9. The apparatus of claim 8, wherein the type of the replacement is one of single data unit replacement type and continuous data unit replacement type.

10. The apparatus of claim 9, wherein a data unit is a cluster.

11. The apparatus of claim 10, wherein the microcomputer is configured to notify the host of an address of an unrecorded cluster directly subsequent after the last sector having recorded data in the recording range as the next recordable position of the recording range.

12. The apparatus of claim 11, wherein the microcomputer is configured to move the next recordable position without notifying to the host in accordance with the replacement.

13. The method of claim 8, wherein the management information entry indicates the first and second areas by including a first physical sector number of the first area and a first physical sector number of the second area.

14. The apparatus of claim 13, wherein if the second status indicator indicates the type of the replacement is continuous, the microcomputer is configured to control the interface unit, the pickup, the data processor, the servo and the memory such that the apparatus:

records a first management information entry and a second management information entry, the first management information entry including information indicating a first data unit in the first area and a first data unit in the second area and the second management information entry including information indicating a last data unit in the first area and a last data unit in the second area.

15. The apparatus of claim 8, wherein the microcomputer is configured to receive from the host a command requesting the apparatus to record data at the first area, and control the interface unit, the pickup, the data processor, the servo and the memory, in response to the command from the host.