Dynamic information storage or retrieval – Control of storage or retrieval operation by a control... – By medium defect indicative control signal
Reexamination Certificate
2006-03-21
2006-03-21
Huber, Paul W. (Department: 2653)
Dynamic information storage or retrieval
Control of storage or retrieval operation by a control...
By medium defect indicative control signal
C369S275300
Reexamination Certificate
active
07016275
ABSTRACT:
An optical recording medium on which data may be stored seamlessly, and a method of processing a defective area in the optical recording medium are provided. In a recording medium in which basic recording units are seamlessly recorded, such as a digital versatile disc rewritable (DVD-RW) on which data can be repeatedly recorded and reproduced multiple times, defective areas occurring before or during use are detected, and a list of the defective areas is recorded in a predetermined area of the recording medium. Thereafter, while user data is being recorded, instead of slipping (lowering optical power in) the defective areas registered in the defective area list, dummy data is recorded in the defective areas, basic unit data from an area preceding or succeeding a defective area is repeatedly recorded in the defective area, or a predetermined data pattern is recorded in the defective area. This suppresses linking caused by the interruption of data recording, thereby ensuring a maximum user area.
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Kim Young-yoon
Lee Kyung-geun
Huber Paul W.
Stein, McEwen & Bui LLP
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