Method and apparatus for controlling power during recording...

Details Method and apparatus for controlling power during recording... Method and apparatus for controlling power during recording...

2006-01-03

2006-01-03

Dinh, Tan (Department: 2653)

Dynamic information storage or retrieval

Specific detail of information handling portion of system

Radiation beam modification of or by storage medium

C369S047510, C369S053280

Reexamination Certificate

active

06982943

ABSTRACT:
A controlling unit130of an optical disc recording apparatus judges a failure of a focus servo in accordance with an output signal of a servo circuit107When the failure of the focus servo is detected, a laser light irradiating position at the time of the failure is obtained as a standard position and a laser power controlling unit140is controlled to pause a control of the laser power based on data to be recorded. Thereafter, the laser power controlling unit140and a position of an optical pickup103are controlled to restart the control of the laser power based on the data to be recorded from the standard position as a starting position.

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patent: 2003/0231563 (2003-12-01), Masaki
patent: 2004/0004912 (2004-01-01), Morishima
patent: 1 168 316 (2002-01-01), None

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