Rotary head digital audio recording/reproducing apparatus

Details Rotary head digital audio recording/reproducing apparatus Rotary head digital audio recording/reproducing apparatus

1987-09-21

1989-09-05

Canney, Vincent P.

Dynamic magnetic information storage or retrieval

General recording or reproducing

Specifics of biasing or erasing

G11B 503

Patent

active

048644366

ABSTRACT:
In a digital audio recording/reproducing apparatus of the rotary head type, erasure of signals in previously recorded tracks, which are used to control the operation of a tracking servomotor, is enhanced by the provision of a magnetic field generator prior to the point where overwriting occurs. As a result, errors in the tracking error signal arising due to unerased remnants of the previously recorded signals are eliminated.

REFERENCES:
patent: 2526358 (1950-10-01), Howell
patent: 3435442 (1969-03-01), Ma et al.
patent: 3838446 (1974-09-01), Otsuka et al.
patent: 3908894 (1975-08-01), Aziz
patent: 3961369 (1976-06-01), Baumann et al.
patent: 4163267 (1979-07-01), DeMoss
patent: 4527202 (1985-07-01), Ohra
patent: 4651239 (1987-03-01), Omori et al.

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