Method of generating a recording pulse train in accordance...

Details Method of generating a recording pulse train in accordance... Method of generating a recording pulse train in accordance...

2005-08-02

2009-10-27

Tran, Thang V (Department: 2627)

Dynamic information storage or retrieval

Binary pulse train information signal

Binary signal processing for controlling recording light...

C369S059120

Reexamination Certificate

active

07609602

ABSTRACT:
A method of generating a recording pulse train in accordance with a NRZI signal for recording information to a recording medium by irradiating a pulse chain including a first pulse, a middle pulse chain, a last pulse and a negative pulse following the last pulse, including adjusting an average power of the first pulse to a designated peak power level, adjusting an average power of the middle pulse chain to a designated peak power level, adjusting an average power of the last pulse to a designated power level, adjusting an average power of the negative pulse to a designated power level that is lower than the peak power level, and controlling a leading edge of the first pulse of the recording pulse train to start with a variable lapse of time from a leading edge of the NRZI signal, with a duration of the first pulse being fixed.

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