Optical disk device and method for setting recording power and e

Details Optical disk device and method for setting recording power and e Optical disk device and method for setting recording power and e

1996-08-21

1998-11-24

Edun, Muhammad N.

Dynamic information storage or retrieval

Condition indicating, monitoring, or testing

Including radiation storage or retrieval

369116, 369 58, G11B 700

Patent

active

058417478

ABSTRACT:
An optical disk device comprises a power ratio setting circuit for setting ratio of recording power to erasing power in a predetermined ratio, a recording start point detection circuit for detecting a recording start point by performing at least two cycle recording over the same area in a predetermined test region to detect a recording power and an erasing power of the recording start point, and a power setting circuit for setting a final recording power and erasing power for recording in a user region of the optical disk by multiplying the recording power and the erasing power of the recording start point by predetermined values respectively.

REFERENCES:
patent: 5140580 (1992-08-01), Ohara et al.
patent: 5504728 (1996-04-01), Yokota et al.
patent: 5629913 (1997-05-01), Kaku et al.
patent: 5642343 (1997-06-01), Toda et al.

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