Method and apparatus for managing disc defects using...

Details Method and apparatus for managing disc defects using... Method and apparatus for managing disc defects using...

2003-10-14

2008-11-11

Ton, David (Department: 2117)

Error detection/correction and fault detection/recovery

Pulse or data error handling

Replacement of memory spare location, portion, or segment

C714S054000

Reexamination Certificate

active

07451364

ABSTRACT:
A disc defect management method and apparatus using a defect management area that can be updated, and a write once disc incorporating the method. A data area is disposed between a lead-in area and a lead-out area. The disc includes a defect management area (DMA) that is present in at least one of the lead-in area or the lead-out area, wherein defect information and defect management information are repeatedly recorded in the DMA according to a recording operation. Accordingly, the disc defect management method and apparatus enable effective use of the defect management area. The method is also applicable to a multi layer disc having a user data area on each layer. The defect information and the defect management information for an individual defect may include cumulative defect information and defect management information related to previously identified defects.

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Office Action issued in Chinese Patent Application No. 200380101600.7 on Aug. 4, 2006.

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