Information recording device

Details Information recording device Information recording device

2006-02-28

2006-02-28

Miller, Brian E. (Department: 2652)

Dynamic information storage or retrieval

Binary pulse train information signal

Binary signal processing for controlling recording light...

C369S047530

Reexamination Certificate

active

07006419

ABSTRACT:
An information recording device comprising at least a recording pulse generating means and a recording pulse selecting means capable of generating various multi-pulses each of which is a combination of a leading heating pulse and a succeeding heating pulse, and rectangular pulses each of which is a single pulse, as a recording pulse, is disclosed. The recording pulse selecting means switches and selects among the multi-pulses and the rectangular pulses according to a recording condition, and then causes a light emission of a laser light source through a light source driving means. Even though in a high recording linear velocity recording condition that is insufficient in power for the recommended multi-pulse recording, a very low recording power can still be used by switching to the rectangular pulse recording, so as to achieve a recording with a much higher recording speed. In addition, good recording marks can be formed without exceeding a maximum allowable recording power.

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