Helical scan type magnetic tape reproducing apparatus with varia

Details Helical scan type magnetic tape reproducing apparatus with varia Helical scan type magnetic tape reproducing apparatus with varia

1985-02-27

1987-10-27

Cardillo, Raymond F.

Dynamic magnetic information storage or retrieval

Record editing

360 103, 360 77, 360109, 36013024, G11B 5588, H04N 5783

Patent

active

047033703

ABSTRACT:
A magnetic tape reproducing apparatus comprises a tape guide drum spirally wrapped with a magnetic tape on an outer peripheral surface thereof, a first mechanism for pivotally supporting the drum, and second mechanism for varying the inclination angle of the drum in a special reproduction mode of the reproducing apparatus, which special reproduction mode is a reproduction mode in which the tape moves with a tape moving speed and/or a tape moving direction different from a tape moving speed and/or a tape moving direction in a normal reproduction mode (or recording mode). The second mechanism varies the inclination angle of the drum in the special reproduction mode in one of two mutually opposite directions with respect to a reference inclination angle of the drum at the time of the normal reproduction mode. The second mechanism varies the inclination angle of the drum depending on the tape moving speed and direction of the tape in the special reproduction mode so that an inclination angle of scanning loci of rotary video heads with respect to the tape longitudinal direction becomes equal to an inclination angle of video tracks on the tape with respect to the tape longitudinal direction.

REFERENCES:
patent: 3375331 (1968-03-01), Okazaki et al.
patent: 3697676 (1972-10-01), Protas
patent: 3995317 (1976-11-01), Schmidt
patent: 4048661 (1977-09-01), Staar
patent: 4423447 (1983-12-01), Nishida et al.
patent: 4564876 (1986-01-01), Takahashi et al.

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