Optical recording method, optical recording apparatus and...

Details Optical recording method, optical recording apparatus and... Optical recording method, optical recording apparatus and...

2005-12-28

2011-12-06

Tran, Thang (Department: 2627)

Dynamic information storage or retrieval

Binary pulse train information signal

Binary signal processing for controlling recording light...

C369S047510, C369S094000, C369S053260, C369S116000

Reexamination Certificate

active

08072863

ABSTRACT:
Data is recorded in a phase-change optical storage medium having data layers. A first recording pulse sequence is generated for recording to a first data layer located most remote from a beam-incident surface. The first sequence has a recording pulse carrying an erasing power and a recording power rising from the erasing power, and a cooling pulse carrying a bottom power lower than the erasing power. A second recording pulse sequence is generated for recording to a second data layer. The second sequence has recording pulse carrying an erasing power and a recording power rising from the erasing power, a cooling puse carrying a bottom power lower than the erasing power, and an erasing top pulse carrying an erasing top power higher than the erasing power.

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