Dynamic information storage or retrieval – Control of storage or retrieval operation by a control... – Mechanism control by the control signal
Reexamination Certificate
2005-03-10
2008-09-23
Young, Wayne (Department: 2627)
Dynamic information storage or retrieval
Control of storage or retrieval operation by a control...
Mechanism control by the control signal
C369S047300, C369S059110
Reexamination Certificate
active
07428198
ABSTRACT:
Provided is an optical disc device in which adjustment precision of recording laser power is improved without complication of a processing sequence during recording operation. In response to a recording start instruction, OPC is executed using an inner disc drive zone to set an initial value of recording laser power Pws. Then, when a first recording instruction REC(1) is detected, recording is successively performed from the head of a data area using the laser power Pws. After that, when an intermittent standby period is set, sample data is recorded to a next recording position and R-OPC is executed. Therefore, the recording laser power Pws is set again. Next, when a second recording instruction REC(2) is detected, recording is successively performed from a next recording position, that is, a position next to an end portion of the first recording instruction REC(1) using the reset laser power Pws. At this time, data corresponding to a head portion of the second recording instruction REC(2) is overwritten on sample data in the head of the recording position.
REFERENCES:
patent: 2002/0044507 (2002-04-01), Hagiwara et al.
patent: 2002/0085470 (2002-07-01), Yokoi
patent: 2003/0031102 (2003-02-01), Narumi et al.
patent: 2003/0086346 (2003-05-01), Fukumoto
patent: 2005/0213452 (2005-09-01), Hirose et al.
Triceps Corporation publication, “White Series No. 218 DVD+RW/R”,(4.2 OPC (Optimum Write Power Control) ) method Jan. 22, 2002, pp. 111-113 (3 pages of English Translation).
Chinese Office Action issued in Corresponding Chinese Patent Application No. 200510059479.7, dated on May 19, 2007.
Hirose Ken
Mamiya Noboru
Nakao Kenji
Sumi Satoshi
McDermott Will & Emery LLP
Pham Van T
Sanyo Electric Co,. Ltd.
Young Wayne
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