Methods of defect management and reproduction, program and...

Details Methods of defect management and reproduction, program and... Methods of defect management and reproduction, program and...

2011-07-19

2011-07-19

Young, Wayne R (Department: 2627)

Dynamic information storage or retrieval

Control of storage or retrieval operation by a control...

By medium defect indicative control signal

C369S053160, C369S053170

Reexamination Certificate

active

07983123

ABSTRACT:
A method of defect management for managing on a block-by-block basis a defective area in an information-recording medium is disclosed. The medium has a user-data area, a sparing area, and a defect-management information are. The block is of a predetermined size. The method includes the steps of, when a defective block in which the defective area is included is set to be replaced with a sparing block of the sparing area: dividing the sparing block into multiple subblocks so as to set identifying information, for identifying a sparing subblock in which data are replaced and a non-sparing subblock in which data are not replaced, as defect-management information; and setting block-management information, including information regarding the defective block and the sparing block, and information regarding an area in which non-sparing data not replaced with the sparing block are stored, as defect-management information.

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