Optical disk device recording data on a recordable or...

Dynamic information storage or retrieval – Control of storage or retrieval operation by a control... – Mechanism control by the control signal

Reexamination Certificate

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Details

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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