Optical disk apparatus

Details Optical disk apparatus Optical disk apparatus

2005-06-07

2005-06-07

Edun, Muhammad (Department: 2655)

Dynamic information storage or retrieval

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

Mechanism control by the control signal

C369S047520, C369S053100, C369S059100, C369S116000

Reexamination Certificate

active

06904009

ABSTRACT:
An optical disk apparatus that records data on an optical disk whose linear velocity is not constant. The optical disk apparatus includes an optical pickup that irradiates a laser beam of a recording power on the optical disk, converts light reflected from the optical disk into an electric signal; a detector that detects a level of the reflected light signal; and a controller that controls a recording power such that the reflected light signal level matches a target value set according to the linear velocity. When adjusting the recording power such that the reflected light level matches the target value, the target value is not set to a constant level, but set in accordance with the linear velocity. Target values at different linear velocities differ and, with this configuration, an appropriate target value is set and an appropriate recording power corresponding to the linear velocity is obtained.

REFERENCES:
patent: 5398227 (1995-03-01), Miyaoka et al.
patent: 5933410 (1999-08-01), Nakane et al.
patent: 6760287 (2004-07-01), Sato
patent: 10-106009 (1998-04-01), None
patent: 11296858 (1999-10-01), None
patent: 2000-306241 (2000-11-01), None

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