Intensity of a light beam changed according to the length of a m

Details Intensity of a light beam changed according to the length of a m Intensity of a light beam changed according to the length of a m

1997-09-26

2000-01-25

Cabeca, John W.

Dynamic information storage or retrieval

Specific detail of information handling portion of system

Radiation beam modification of or by storage medium

369116, 3692752, G11B 500

Patent

active

060185082

ABSTRACT:
The present invention discloses an optical information recording method where a mark is formed on a recording medium by irradiating a light beam on the recording medium as pulses and recorded information is represented by the positions of the starting end and the finishing end of the mark, wherein the intensity of the light beam is changed according to the length of the mark and/or the pulse width of the light beam is reduced at least for the difference between the length of a mark to be formed and the length of a standard mark when the mark to be formed is shorter than the standard mark.

REFERENCES:
patent: 5367514 (1994-11-01), Kobayashi et al.
patent: 5396480 (1995-03-01), Morishita et al.
patent: 5608710 (1997-03-01), Minemura et al.
patent: 5673249 (1997-09-01), Hasegawa et al.
patent: 5732061 (1998-03-01), Kirino et al.
patent: 5745467 (1998-04-01), Sakaue et al.

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