Method and apparatus for eliminating asymmetry error in servo de

Details Method and apparatus for eliminating asymmetry error in servo de Method and apparatus for eliminating asymmetry error in servo de

1998-12-18

2000-08-22

Tran, Toan

Miscellaneous active electrical nonlinear devices, circuits, and

Specific signal discriminating without subsequent control

By amplitude

327 58, G01R 1900

Patent

active

061078409

ABSTRACT:
A circuit to generate a servo burst signal, including a circuit to generate a first differential signal and a second differential signal, a first half wave rectifier to rectify the first differential signal and to generate a first rectified signal, a second half wave rectifier to rectify the second differential signal and to generate a second rectified signal, a first peak detector to detect a first peak of the first rectified signal, a second peak detector to detect a second peak of the second rectified signal, and a circuit to generate the servo burst signal based on the first peak signal and the second peak signal.

REFERENCES:
patent: 4419595 (1983-12-01), Reiner
patent: 4613769 (1986-09-01), Gross et al.
patent: 5122760 (1992-06-01), Nishijima
patent: 5684651 (1997-11-01), Yaegashi et al.
patent: 5821790 (1998-10-01), Sweetman
patent: 5828240 (1998-10-01), Smith

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