Optical disk apparatus

Details Optical disk apparatus Optical disk apparatus

2011-08-16

2011-08-16

Bibbins, Latanya (Department: 2627)

Dynamic information storage or retrieval

Condition indicating, monitoring, or testing

Including radiation storage or retrieval

C369S044130

Reexamination Certificate

active

08000199

ABSTRACT:
An optical disk apparatus to record data on an optical disk on which a wobble is formed, the optical disk apparatus including; a detection unit including a BPF which a signal obtained from a reflected light from an optical disk passes, the detection unit to detect a wobble signal from a wobble based on the signal passing the BPF; and a register to store an adjustment value for adjusting the BPF as a register value, so as to adjust the BPF based on each of register values obtained by changing the register value 1 LSB by 1 LSB; acquire an amplitude of the signal passing the BPF, the amplitude corresponding to each of the register values; identify one of the register values for the largest acquired amplitude; and adjust the BPF based on a value obtained by adding 1 LSB to the identified register value when data is recorded.

REFERENCES:
patent: 2004/0196754 (2004-10-01), Mashimo
patent: 2005/0025009 (2005-02-01), Ono
patent: 2006/0002254 (2006-01-01), Ishihara et al.
patent: 2006/0044961 (2006-03-01), Jin
patent: 1 662 492 (2006-05-01), None
patent: 2002-251742 (2002-09-01), None
patent: 2005-116148 (2005-04-01), None
European Search Report dated Oct. 22, 2010 (ten (10) pages).

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