Method and device for recording on optical disc

Details Method and device for recording on optical disc Method and device for recording on optical disc

1997-08-05

1999-02-16

Swann, Tod R.

Dynamic information storage or retrieval

Specific detail of information handling portion of system

Radiation beam modification of or by storage medium

369 54, G11B 1103, G11B 700

Patent

active

058727639

ABSTRACT:
Test-recording signals are recorded onto an optical disc by variously varying the intensity values of erasing power and bottom power as well as writing power of a laser light beam, in order to determine a combination of optimum intensity values of the writing power and erasing power, of the writing power and bottom power or of the writing power, erasing power and bottom power. Then, actual-recording signals are recorded in accordance with the thus-determined combination of optimum intensity values. With this arrangement, optimum recording conditions can be constantly provided irrespective of non-uniform and time-varying characteristics of various optical discs used, and it is possible to reliably prevent reproduction errors or failure of reproduction.

REFERENCES:
patent: 5305297 (1994-04-01), Nishiuchi et al.
patent: 5732061 (1998-03-01), Kirino et al.
patent: 5740149 (1998-04-01), Iwasaki et al.

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