Tape withdrawal and tensioning mechanism for video cassette reco

Details Tape withdrawal and tensioning mechanism for video cassette reco Tape withdrawal and tensioning mechanism for video cassette reco

1976-02-17

1978-05-30

Cook, Daryl W.

Dynamic magnetic information storage or retrieval

Record transport with head stationary during transducing

Tape record

242 5519A, 360 85, G11B 5008, B65H 1748, G11B 1566

Patent

active

040926869

ABSTRACT:
A mechanism for use with a video recorder/reproducer of the type which receives a standard video cassette for withdrawing the video tape from the cassette to prepare the tape for threading around a video scanner, for sensing tape position to provide inputs to the reel drive servo motors of independent, closed loop servo systems, and for adjusting the level of tension in the video tape during operation of the recorder/reproducer. The mechanism withdraws the tape in two diverging directions, equally from both reels. The tension level is controlled accurately and is selectively changed for different operating modes.

REFERENCES:
patent: 3770902 (1973-11-01), Witt
patent: 3851816 (1974-12-01), Katoh
patent: 3878114 (1975-04-01), Lancor, Jr. et al.

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