Method and apparatus for writing optical recording media with op

Details Method and apparatus for writing optical recording media with op Method and apparatus for writing optical recording media with op

1996-12-06

1998-08-11

Neyzari, Ali

Dynamic information storage or retrieval

Specific detail of information handling portion of system

Radiation beam modification of or by storage medium

369 54, 369 58, G11B 7125

Patent

active

057937370

ABSTRACT:
A method and apparatus for writing information on an optical recording medium by setting an optimum write power for recording information on the optical recording medium. First a series of test patterns is written on the medium, each test pattern being written with a different write power. On reading the test patterns, the modulation of each read signal is determined. The modulations as a function of write power are curve-fitted to an analytic function. The normalised derivative of this function is determined analytically and is used to determine the value of the optimum write power for the medium.

REFERENCES:
patent: 5185733 (1993-02-01), Finkelstein et al.
patent: 5303217 (1994-04-01), Bakx et al.
patent: 5341360 (1994-08-01), Johann et al.

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