Dynamic information storage or retrieval – Control of storage or retrieval operation by a control... – Mechanism control by the control signal
Reexamination Certificate
2006-01-17
2006-01-17
Patel, Gautam R. (Department: 2655)
Dynamic information storage or retrieval
Control of storage or retrieval operation by a control...
Mechanism control by the control signal
C369S116000, C369S047540, C369S047520, C369S053260
Reexamination Certificate
active
06987717
ABSTRACT:
An information recording device for writing information in a circumferential direction of a disk-type recording medium, with a substantially constant linear density. The device performs a test-writing in a predetermined area on the disk-type recording medium at a predetermined basic linear velocity so as to determine an optimum recording power according to a result of the test-writing and stores a value in accordance with a reproduction signal reproduced from the disk-type recording medium as an optimum recording-state targeted value, sets a recording power according to a result of a predetermined calculation performed to the optimum recording power and sets a recording-state targeted value according to a result of a predetermined calculation performed to the optimum recording-state targeted value when a recording is performed at a linear velocity different from the predetermined basic linear velocity, and corrects the recording power by comparing the recording-state targeted value with the value during a recording of information to the disk-type recording medium.
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Hagiwara Kei
Suzuki Haruyuki
Dickstein , Shapiro, Morin & Oshinsky, LLP
Ortiz-Criado J. L.
Patel Gautam R.
Ricoh & Company, Ltd.
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