Circuit for sensing the rotation stop of a take-up reel in a tap

Details Circuit for sensing the rotation stop of a take-up reel in a tap Circuit for sensing the rotation stop of a take-up reel in a tap

1985-04-03

1986-12-30

Jillions, John M.

Winding, tensioning, or guiding

Strand tensioning device

Tortuous course

360 742, 242 57, B65H 2600, G11B 1532

Patent

active

046323333

ABSTRACT:
A plurality of sensing means are actuated by the rotation of a take-up reel in a reel-to-reel type tape deck wherein the frequency of activation of switches determines whether or not drive power should be continued to the tape deck drive mechanism. Monostable multivibrator circuits are employed to respond to the bi-level signals output from the switch means and provide respective enabling signals to a logic circuit so that when either one of the multivibrators circuits provides an output in response to the rotating switch means, the logic circuit will continue to allow driving power to be supplied to the tape deck.

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patent: 4494712 (1985-01-01), Godwin, Jr. et al.
patent: 4508280 (1985-04-01), Hayosh

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