Defect protecting circuit and a method for data slicer in an...

Details Defect protecting circuit and a method for data slicer in an... Defect protecting circuit and a method for data slicer in an...

2005-07-05

2005-07-05

Patel, Gautam R. (Department: 2655)

Dynamic information storage or retrieval

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

Control of information signal processing channel

C369S047350, C369S059160

Reexamination Certificate

active

06914861

ABSTRACT:
A defect protecting circuit and a method for data slicer in an optical drive is disclosed. As a defect occurs in a disk, the gain of the data slicer is switched to a high gain. After the defect does not occur further, the gain is switched back to a normal gain. Therefore the slicing level can return back to a correct slicing level for reducing incorrect data after the defect terminates, and the jitter in the output data is also reduced.

REFERENCES:
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patent: 4722079 (1988-01-01), Matsumoto
patent: 5124964 (1992-06-01), Hayashi
patent: 5241220 (1993-08-01), Karlock
patent: 5600615 (1997-02-01), Kiyoura et al.
patent: 6137758 (2000-10-01), Nemoto
patent: 6341113 (2002-01-01), Kamiyama

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