Method of and apparatus for managing disc defects in disc, and disc on which defects are managed

• US 8,081,547 B2
• Filed: 05/10/2006
• Issued: 12/20/2011
• Est. Priority Date: 10/10/2002
• Status: Active Grant

• Current Assignee: Samsung Electronics Co. Ltd.
• Original Assignee: Samsung Electronics Co. Ltd.
• Inventors: Ko, Jung-wan, Hwang, Sung-hee, Lee, Kyung-geun
• Primary Examiner(s): ORTIZ CRIADO, JORGE L
• Application Number:
  US11/430,972
• Publication Number:
  US 20060203685A1
• Time in Patent Office: 2,050 Days
• Field of Search: 369/53.17
• US Class Current: 369/53.17
• 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 method of and apparatus for managing disc defects in a disc using a temporary defect management area in the disc, and the disc, where the method includes recording in a data area user data; and recording in a temporary defect management area, which is present in at least one of a lead-in area and a lead-out area, which temporary defect information and temporary defect management information regarding the user data recorded in the data area are recorded. Accordingly, the method and apparatus are applicable to recordable discs and capable of effectively using the defect management area.

Claims

1. A method of accessing data in a disc, the disc comprising a data area, a lead-in area, and a lead-out area, the method comprising:

reading defect information and defect management information from a defect management area arranged in the lead-in area and/or the lead-out area of the disc, wherein the defect information comprises location information of a defect block and location information of a replacement block for replacing the defect block, and the defect management information comprises location information of the defect information; and

accessing the recorded data using the defect information;

wherein the defect information and the defect management information are generated from information included in temporary management information that is lastly recorded in a temporary defect management area;

the temporary defect management area comprises a plurality of temporary management information;

each of the plurality of temporary management information comprises corresponding temporary defect information, and corresponding temporary defect management information comprising location information of the corresponding temporary defect information;

the corresponding temporary defect information and the corresponding temporary defect management information are stored as a pair in each of the plurality of temporary management information in the same temporary defect management area;

the plurality of temporary management information comprises first temporary management information and second temporary management information;

the first temporary management information is recorded in a first area in the temporary defect management area and comprises first temporary defect information, and first temporary defect management information comprising location information of the first temporary defect information; and

the second temporary management information is recorded in a second area other than the first area in the temporary defect management area and comprises second temporary defect information, and second temporary defect management information comprising location information of the second temporary defect information.

2. A non-transitory computer-readable medium comprising computer-executable instructions for performing the operations recited in claim 1 using at least one computer.

3. The method of claim 1, wherein the first temporary defect information comprises first defect information regarding user data recorded in the data area;

and

the second temporary defect information comprises second defect information regarding user data recorded in the data area.

4. The method of claim 1, wherein the first temporary defect management information comprises first management information for managing the first temporary defect information;

and

the second temporary defect management information comprises second management information for managing the second temporary defect information.

5. The method of claim 1, wherein the temporary defect management information included in the temporary management information that is lastly recorded in the temporary defect management area comprises temporary defect management information included in temporary management information that is previously recorded in the temporary defect management area.