Slow motion tape driving system in a recording and/or reproducin

Details Slow motion tape driving system in a recording and/or reproducin Slow motion tape driving system in a recording and/or reproducin

1978-05-24

1980-02-26

Hecker, Stuart N.

Dynamic magnetic information storage or retrieval

Record editing

360 73, H04N 5795, G11B 1926, G11B 1546

Patent

active

041908694

ABSTRACT:
A tape driving system is adapted to be used in a recording and/or reproducing apparatus having at least one rotating head for tracing tracks on which a video signal has been recorded. The tracks lie obliquely with respect to the tape longitudinal direction. The tape driving system comprises a capstan for driving the tape, a DC motor for driving the capstan, a circuit for forming a pulse-like voltage of a predetermined level over a predetermined interval of time at a given frequency, and a circuit for selectively applying either the pulse-like voltage from the forming circuit or a continuous driving voltage to the DC motor depending on the reproducing mode. The pulse-like voltage is applied to the motor when in a slow motion reproducing mode to intermittently rotate the motor and cause the capstan to intermittently shift the tape.

REFERENCES:
patent: 3869709 (1975-03-01), Yamagishi et al.
patent: 3943562 (1976-03-01), Opelt
patent: 3968518 (1976-07-01), Kihara et al.

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