Optical disk player having waveform distortion compensating func

Details Optical disk player having waveform distortion compensating func Optical disk player having waveform distortion compensating func

1996-01-04

1998-02-17

Tran, Thang V.

Dynamic information storage or retrieval

Specific detail of information handling portion of system

Radiation beam modification of or by storage medium

369 54, 369 4432, G11B 700

Patent

active

057198470

ABSTRACT:
An optical disk player for compensating a waveform distortion of a read signal which is caused due to a skew in the track tangential direction of an optical disk. An optical disk is constructed in a manner such that a skew amount of the irradiated portion of a recording surface of the optical disk for a light beam irradiated onto the recording surface of the optical disk is detected from the pickup and transmitting characteristics of a read signal generated from the pickup are controlled in accordance with the detected skew amount. A waveform distortion of the read signal due to a warp or distortion existing in the track tangential direction of the optical disk can be compensated and the recording data can be accurately reproduced.

REFERENCES:
patent: 5442615 (1995-08-01), Ohsato et al.
patent: 5546367 (1996-08-01), Yoshimura et al.

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