Comparator and optical-disc recording/reproduction apparatus

Details Comparator and optical-disc recording/reproduction apparatus Comparator and optical-disc recording/reproduction apparatus

2009-11-16

2011-11-08

Young, Wayne (Department: 2627)

Dynamic information storage or retrieval

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

Control of information signal processing channel

C369S044240, C369S044250, C369S044290, C369S044350, C369S053350, C369S124100, C369S124110

Reexamination Certificate

active

08054719

ABSTRACT:
A comparator includes a variable-gain amplifier circuit configured to vary an amplitude of an input signal by changing a gain in accordance with a control signal, and a comparison section configured to compare a slice level interlocked with a signal level received from the variable-gain amplifier circuit with an output signal received from the variable-gain amplifier circuit and generate an output signal in accordance with a comparison result.

REFERENCES:
patent: 6661759 (2003-12-01), Seo
patent: 7215632 (2007-05-01), Horibe
patent: 2004/0196926 (2004-10-01), Chien et al.
patent: 2005/0201253 (2005-09-01), Yang et al.
patent: 2008/0291113 (2008-11-01), Ou-Yang
patent: 2009/0092207 (2009-04-01), Takahashi
patent: 05-067332 (1993-03-01), None
patent: 05-258464 (1993-10-01), None
patent: 07-334918 (1995-12-01), None
patent: 3458502 (2003-08-01), None
patent: WO-03/077248 (2003-09-01), None
Japanese Office Action issued Nov. 16, 2010 for corresponding Japanese Application. No. 2008-323370.

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