Write power determining method and write power control...

Details Write power determining method and write power control... Write power determining method and write power control...

2007-11-20

2007-11-20

Young, Wayne (Department: 2627)

Dynamic information storage or retrieval

Control of storage or retrieval operation by a control...

Mechanism control by the control signal

C369S116000

Reexamination Certificate

active

10814704

ABSTRACT:
A write power determining method for an optical disk drive determines optimum write power information of an optical disk during the high-speed rotation of the disk. A push-pull signal amplitude is obtained at two positions in a radial direction of an optical disk before writing. A linearization value of optimum write power associated with radial positions over the whole writing area of the disk is determined on the basis of the obtained push-pull signal amplitude. The determined result is adopted as optimum write power information associated with the radial positions of the disk.

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