Tape recording and playback control circuit

Details Tape recording and playback control circuit Tape recording and playback control circuit

1974-08-14

1976-02-24

Scott, James R.

Electricity: motive power systems

Automatic and/or with time-delay means

Movement, position, or limit-of-travel

318453, 318617, 242188, 360 74, 360 78, G11B 7548, G05D 306

Patent

active

039406725

ABSTRACT:
An electronic control circuit for automatically stopping the tape drive motor of a magnetic tape recording and playing unit. A set of contacts is provided in the circuit to detect electrically conductive means located at preselected points along the magnetic tape, and upon such detection, to alter the conductive states of three control transistors to cause de-energization of the tape drive motor. Diode logic means in the circuit prevent automatic stopping of the drive motor when the recording and playing unit is operated in a particular mode wherein such stopping is not desired.

REFERENCES:
patent: 3583617 (1971-06-01), Kosaka
patent: 3622229 (1971-11-01), John
patent: 3676609 (1972-07-01), Colye et al.
patent: 3691313 (1972-09-01), Kobayashi et al.
patent: 3694585 (1972-09-01), Goldner
patent: 3695550 (1972-10-01), Lennox
patent: 3705271 (1972-12-01), De Bell et al.
patent: 3746278 (1973-07-01), Dennis et al.
patent: 3800316 (1974-03-01), Kuharchuk
patent: 3838454 (1974-09-01), Huber

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