Producing optical recording using optimum write power

Details Producing optical recording using optimum write power Producing optical recording using optimum write power

1997-11-21

2000-10-17

Edun, Muhammad

Dynamic information storage or retrieval

Specific detail of information handling portion of system

Radiation beam modification of or by storage medium

369 54, 369 47, G11B 700

Patent

active

061342092

ABSTRACT:
A method is described for setting an optimum write power for recording information on an 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: 5070495 (1991-12-01), Bletscher et al.
patent: 5185733 (1993-02-01), Finkelstein et al.
patent: 5268893 (1993-12-01), Call et al.
patent: 5463600 (1995-10-01), Kirino et al.

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