Optical disc drive

Details Optical disc drive Optical disc drive

2007-05-15

2007-05-15

Edun, Muhammad (Department: 2627)

Dynamic information storage or retrieval

With servo positioning of transducer assembly over track...

Optical servo system

C369S044280, C369S044340

Reexamination Certificate

active

10735009

ABSTRACT:
An optical disc drive is used to read and/or write data from/on an optical disc having a data storage layer. The drive corrects electrical offset while reading and/or writing data. The drive updates a correction value based on an electrical offset detected at correcting operation or a value derived using electrical offset values that has been detected and stored, without detecting an electrical offset at correcting operation. Therefore, the optical disc drive can correct the electrical offset less often.

REFERENCES:
patent: 4782474 (1988-11-01), Arai et al.
patent: 5181195 (1993-01-01), Kume et al.
patent: 5663942 (1997-09-01), Ishibashi et al.
patent: 63-127479 (1988-05-01), None
patent: 05-062220 (1993-03-01), None

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