Sectored servo position demodulator system

Details Sectored servo position demodulator system Sectored servo position demodulator system

1989-09-29

1992-08-04

Psitos, Aristotelis

Dynamic magnetic information storage or retrieval

Automatic control of a recorder mechanism

Controlling the head

360 7702, 360 29, G11B 5596

Patent

active

051364395

ABSTRACT:
A demodulator system demodulates position information signals provided by a transducer in response to position information. The position information is read from a quadrature field and a normal field on a disk in a data storage system. A rectifier rectifies the position information signals to provide rectified position signals. An integrating capacitor integrates the rectified position signals to produce position error signals representative of trasducer position.

REFERENCES:
patent: 4297734 (1981-10-01), Laishley et al.
patent: 4414589 (1983-11-01), Oliver et al.
patent: 4669004 (1987-05-01), Moon et al.
patent: 4679103 (1987-07-01), Workman
Head Positioning in a Large Disc Drive, Hewlett-Packard Journal, Jan. 1984 by Frank Bell, Eric W. Johnson, R. Keith Whitaker, and Roger V. Wilcox.

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