Fully integrated programmable filters for disc drive subsystems

Dynamic magnetic information storage or retrieval – General recording or reproducing – Specifics of equalizing

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330127, 333124, G11B 509, H03G 300

Patent

active

053921712

ABSTRACT:
A disc drive system includes a plurality of subsystems. At least one of the subsystems includes a filter which is completely integrated using a synthetic integrated circuit element.

REFERENCES:
patent: 2960661 (1960-11-01), Bratschi
patent: 3402360 (1968-09-01), Millon
patent: 3959820 (1976-05-01), Braun
patent: 3965447 (1976-06-01), Thomas
patent: 4644306 (1987-02-01), Kleinberg
patent: 4794469 (1988-12-01), Kaido et al.
patent: 4809090 (1989-02-01), Suzuki
patent: 5012201 (1991-04-01), Morita et al.
patent: 5220468 (1993-06-01), Sidman
Active Filter Design Using Operational Transconductance Amplifiers: A Tutorial, by Randall L. Geiger and Edgar Sanchez-Sinencio, IEEE Circuits and Devices Magazine, Mar. 1985, pp. 20-32.

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