Dynamic information storage or retrieval – Control of storage or retrieval operation by a control... – Mechanism control by the control signal
Reexamination Certificate
2011-03-01
2011-03-01
Young, Wayne R (Department: 2627)
Dynamic information storage or retrieval
Control of storage or retrieval operation by a control...
Mechanism control by the control signal
C369S047520
Reexamination Certificate
active
07898915
ABSTRACT:
Provided is an optical disc apparatus including: a recording unit configured to record data on an optical disc with laser lights of recoding powers set for first and second layers thereof; and a control unit configured to record/reproduce test data on/from these layers, determine first and second optimum recording powers for these layers, and set the determined first and second optimum recording powers in the recording unit, wherein the control unit changes the recording power across a predetermined search width, centering on a first recommended value for the first layer to determine the first optimum recording power, and corrects a second recommended value for the second layer on the basis of the first recommended value and the first optimum recording power and changes the recording power across the search width, centering on the corrected second recommended value to determine the second optimum recording power.
REFERENCES:
patent: 2007/0159942 (2007-07-01), Takeshita et al.
patent: 2006-016444 (2006-01-01), None
patent: 2006-164417 (2006-06-01), None
patent: 2007-164954 (2006-06-01), None
patent: 2008-140451 (2008-06-01), None
patent: 2008-140545 (2008-06-01), None
patent: 2009-104704 (2009-05-01), None
Notification of Reasons for Rejection issued by JPO in the corresponding to the Japanese Patent Application No. 2008-080274 mailed on Jun. 9, 2009.
Danielsen Nathan A
Kabushiki Kaisha Toshiba
Knobbe Martens Olson & Bear LLP
Young Wayne R
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