Optical recording method and optical recording medium

Details Optical recording method and optical recording medium Optical recording method and optical recording medium

2006-02-14

2006-02-14

Tran, Thang V. (Department: 2653)

Dynamic information storage or retrieval

Binary pulse train information signal

Binary signal processing for controlling recording light...

C369S275200, C369S275400

Reexamination Certificate

active

06999392

ABSTRACT:
Increase of jitter in a phase change optical recording medium is suppressed with no extreme decrease in the crystallization speed of the recording layer when the medium is overwritten at a high linear velocity. In addition, in a disk-shaped medium operated at a constant angular velocity, the overwriting is accomplished with the increase of jitter suppressed over the entire area of the medium. Provided is an optical recording method for recording a disk-shaped optical recording medium having a phase change recording layer which is rotated at a constant angular velocity, wherein amorphous recorded marks are formed in the recording layer. In this method, the minimum recorded mark is formed such that WL/MLincrementally or gradually decreases from the radially inner side to the radially outer side of the optical recording medium, when the minimum signal has a length of SL, and when the minimum recorded mark corresponding to said minimum signal has its maximum width of MW, EWis 0.1 MW; the position on the leading edge side of the recorded mark at the width of EWis designated effective leading edge; and the position on the trailing edge side of the recorded mark at the width of EWis designated effective trailing edge; the distance between the effective leading edge and the effective trailing edge is designated effective length ML; and the distance between the effective leading edge and the position at which the width starts to decrease on the trailing edge side is designated WL.

REFERENCES:
patent: 5003527 (1991-03-01), Matsumoto et al.
patent: 5654953 (1997-08-01), Yoshida et al.
patent: 6040030 (2000-03-01), Utsunomiya et al.
patent: 6497935 (2002-12-01), Ogawa
patent: 6515952 (2003-02-01), Kikukawa et al.
patent: 6567367 (2003-05-01), Ohno et al.
patent: 11-232697 (1999-08-01), None
patent: 2000-132836 (2000-05-01), None
patent: 2000-231725 (2000-08-01), None

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