Distortion reduction circuit for video playback

Details Distortion reduction circuit for video playback Distortion reduction circuit for video playback

1987-05-05

1988-12-06

Canney, Vincent P.

Dynamic magnetic information storage or retrieval

General recording or reproducing

Specifics of equalizing

360 67, G11B 1514, G11B 502

Patent

active

047899085

ABSTRACT:
The correction of broadband signals reproduced from magnetic tape are corrected for distortion by three stages in cascade, which the first serves to correct distortion in the group propagation time through the system of playback magnetic head and playback preamplifier, the second directs for amplitude distortion including a 90.degree. phase rotation and the third stage provides equilization to compensate for high frequency losses.

REFERENCES:
patent: 4093965 (1978-06-01), Gish
patent: 4122502 (1978-10-01), Kobayashi
patent: 4314288 (1982-02-01), Gyi
"Rauschoptimierung bei der digitalen Magnetbandaufzeichnung" (Noise Optimization at Digital Video Tape Recording), Von Berthold Eiberger, 1984, Frequenz, pp. 306-312 (English abstract).

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