Dynamic information storage or retrieval – Specific detail of information handling portion of system – Radiation beam modification of or by storage medium
Reexamination Certificate
2005-10-11
2008-11-04
Dinh, Tan X (Department: 2627)
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
07447137
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 circuit107. When a 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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Information Recorder, Matsui Masakatsu (JP 2001-344756), Dec. 14, 2001, Abstract only.
Japanese Office Action (Notice of Reasons of Rejection) dated Dec. 1, 2005.
Japanese Office Action (Decision of Rejection) dated May 17, 2006.
Dinh Tan X
Pillsbury Winthrop Shaw & Pittman LLP
Yamaha Corporation
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