Tape feed control device

Details Tape feed control device Tape feed control device

1987-09-16

1988-11-29

Wolff, John H.

Dynamic magnetic information storage or retrieval

Automatic control of a recorder mechanism

Controlling the record

242186, 242 7551, 318 7, G11B 1532, G11B 1543

Patent

active

047886064

ABSTRACT:
A tape feed control device is configured to detect resolutions of respective reels so as to supply respective reel motors with tension currents i.sub.t1 and i.sub.t2 for setting a tape tension to establish a predetermined tape tension of a tape extending between the reels, and so as to supply the reel motors with acceleration and deceleration currents i.sub.s1 and i.sub.s2 based on an acceleration/deceleration current ratio .alpha. to transport the tape. In this fashion, a desired tape speed is obtained, maintaining a constant tape tension.

REFERENCES:
patent: 3870934 (1975-03-01), Blood
patent: 3910527 (1975-10-01), Buhler et al.
patent: 3982160 (1976-09-01), Goldschmidt et al.
patent: 4408144 (1983-10-01), Lukes
patent: 4419609 (1983-12-01), Meyer
patent: 4442985 (1984-04-01), Kishi et al.
patent: 4531166 (1985-07-01), Anderson
patent: 4749145 (1988-06-01), Steele

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