Optical disc recording apparatus and control method therefor

Dynamic information storage or retrieval – Control of storage or retrieval operation by a control... – Control of information signal processing channel

Reexamination Certificate

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C369S059250, C369S047280

Reexamination Certificate

active

07145850

ABSTRACT:
A phase difference detection circuit (270) and a gain adjusting circuit (280) are provided in an optical disc recording apparatus (200). When the phase difference detection circuit detects a phase difference between an ATIP synchronization signal and a recording synchronization signal, this phase difference detection circuit activates an internal counter (271). Then, when phase difference information including a result of a counting operation performed by the internal counter is outputted from the phase difference detection circuit to the gain adjusting circuit, the gain adjusting circuit suitably adjust the frequency division ratio of a (1/N)-frequency-divider (242) according to the received phase difference information. Thus, the phase of a recording clock signal to be supplied from a PLL circuit (240) to a data encoder (260) through a frequency divider (250) is controlled.

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patent: 5479456 (1995-12-01), Rhebergen
patent: 6269059 (2001-07-01), Kuroda et al.
patent: 6498773 (2002-12-01), Sugie et al.
patent: 6650606 (2003-11-01), Banno
patent: 6665246 (2003-12-01), Moriwaki
patent: 6791922 (2004-09-01), Suzuki
patent: 6909678 (2005-06-01), Morishima
patent: 11-345462 (1999-12-01), None

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