Method of overwriting data in write-once information storage...

Details Method of overwriting data in write-once information storage... Method of overwriting data in write-once information storage...

2007-09-18

2007-09-18

Tran, Thang V. (Department: 2627)

Dynamic information storage or retrieval

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

By medium defect indicative control signal

C711S159000, C707S793000

Reexamination Certificate

active

10806347

ABSTRACT:
A method of overwriting data in a write-once information storage medium and a data recording and/or reproducing apparatus therefor. In the data overwriting method, a command to overwrite new data in a first area of the write-once information storage medium where data has already been recorded is issued. Then, the first area is considered as a defective area, and the new data is recorded in a second area. Thereafter, updated defect management information, including information about the locations of the first and second areas, is recorded in the write-once information storage medium. Accordingly, overwriting can be performed in write-once information storage media, which is incapable of physical overwriting, by using a logical overwriting technique. Thus, data recorded in the write-once information storage medium may be changed or updated.

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patent: 2002-329321 (2002-11-01), None

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