Optical disk device

Details Optical disk device Optical disk device

2006-09-26

2010-02-23

Agustin, Peter Vincent (Department: 2627)

Dynamic information storage or retrieval

Binary pulse train information signal

Including sampling or a/d converting

C369S059110

Reexamination Certificate

active

07668063

ABSTRACT:
A parameter acquisition unit acquires parameters of a write strategy corresponding to the type of an optical disk upon which data is to be recorded, and a recording unit irradiates pulse modulated laser light upon the optical disk based upon the parameters of the write strategy acquired by the parameter acquisition unit, and forms marks corresponding to the data to be recorded in order upon the optical disk. A timing setting unit sets a sampling period, using the parameters of the write strategy acquired by the parameter acquisition unit, within the period from after the completion of formation of a mark upon the optical disk to the start of formation of the next mark. And, during this sampling period which has been set, a sampling unit performs sampling of a signal used for servo control, and a sampling servo control unit performs servo control based upon the signal which has been sampled.

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