Information recording device and information recording method

Dynamic information storage or retrieval – Binary pulse train information signal – Binary signal processing for controlling recording light...

Reexamination Certificate

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Details

C369S059100, C369S047500, C369S116000

Reexamination Certificate

active

10517525

ABSTRACT:
Based on a recording signal, a recording pulse signal, which includes a top pulse located at a front end portion and having a first magnitude, a last pulse located at a back end portion and having the first magnitude, and an intermediate bias portion located between the top pulse and the last pulse and having a second magnitude, is generated. Based on the recording pulse signal, a light source is controlled, and a laser pulse is irradiated on a recording medium. Recording marks corresponding to the recording signal are formed on the recording medium. In generating the recording pulse signal, when the recording medium is rotationally driven, a position of the top pulse is shifted ahead of a position of the top pulse when the recording medium is rotationally driven at the first rotation speed, when the recording medium is rotationally driven at the second control speed.

REFERENCES:
patent: 9-282660 (1997-10-01), None
patent: 10-91961 (1998-04-01), None
patent: 2001-110053 (2001-04-01), None
patent: 2001-176073 (2001-06-01), None
patent: 2001-274358 (2001-10-01), None

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