Preemphasis and clipping apparatus for reducing distortions

Details Preemphasis and clipping apparatus for reducing distortions Preemphasis and clipping apparatus for reducing distortions

1980-08-22

1981-12-15

Canney, Vincent P.

Dynamic magnetic information storage or retrieval

General recording or reproducing

Specifics of equalizing

358170, G11B 545

Patent

active

043062563

ABSTRACT:
Preemphasis and clipping apparatus is provided in a system for translating a signal wave from an input terminal to another terminal. The preemphasis and clipping circuits are arranged to interact with each other, as opposed to being isolated from one another, in a manner which tends to reduce distortions of the translated signal wave. The clipping circuit is arranged to change a time constant associated with the preemphasis circuit during the operation of the clipping action. The interaction also causes the clipping to be maintained beyond the time it would normally fall off.

REFERENCES:
patent: 3007010 (1961-10-01), Erath et al.
patent: 3117278 (1964-01-01), Johnson
patent: 3288930 (1966-11-01), Johnson
patent: 3980815 (1976-09-01), Kaneko
patent: 4122502 (1978-10-01), Kobayashi
patent: 4152733 (1979-05-01), Melwisch

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