Information recording apparatus and information recording...

Details Information recording apparatus and information recording... Information recording apparatus and information recording...

2011-06-21

2011-06-21

Chow, Van N (Department: 2627)

Dynamic information storage or retrieval

Binary pulse train information signal

Binary signal processing for controlling recording light...

C369S047100, C369S053100

Reexamination Certificate

active

07965602

ABSTRACT:
In the information recording apparatus, by driving the light source by the pulse signal corresponding to the recording signal, the laser pulse corresponding to the recording signal is irradiated onto the recording medium. The recording signal has the mark period to form the recording mark, and the space period in which the recording mark is not formed. In the mark period, the output level of the laser pulse changes between the normal level and the writing level, thereby, the recording mark is formed on the recording medium. On the one hand, over a predetermined period in the space period, the output level of the laser pulse is changed to the low level lower than the normal level. Thereby, the heat accumulation onto the recording medium, due to the transient response of the laser pulse in the mark period, is reduced, and in the mark period after that, the correct recording mark can be formed.

REFERENCES:
patent: 5561642 (1996-10-01), Saito et al.
patent: 5592322 (1997-01-01), Kim
patent: 5732061 (1998-03-01), Kirino et al.
patent: 5737301 (1998-04-01), Miyamoto et al.
patent: 5887010 (1999-03-01), Arai
patent: 5917793 (1999-06-01), Uchiumi
patent: 6426929 (2002-07-01), Watabe et al.
patent: 0 317 193 (1989-05-01), None
patent: 0 991 058 (2000-04-01), None
patent: 6-150319 (1994-05-01), None
patent: 6-295440 (1994-10-01), None
patent: 9-044848 (1997-02-01), None
patent: 2000-298832 (2000-10-01), None
patent: 98/28735 (1998-07-01), None

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