Three motor tape drive mechanism

Details Three motor tape drive mechanism Three motor tape drive mechanism

1974-11-04

1976-03-23

Dobeck, B.

Electricity: motive power systems

With particular motor-driven load device

Tension-maintaining type of motor-control system

318 16, H02P 774

Patent

active

039462919

ABSTRACT:
Apparatus for remotely controlling the motor tape drive mechanism of an audio tape recorder or the like. In one embodiment, the apparatus comprises a plurality of semiconductors controlled by a low-level logic circuit and a diode switching network for selectively varying the current through the forward drive motor and the rewind motor of the mechanism to properly tension the tape between a take-up reel and a rewind reel and to differentially brake the motors when switching from a particular mode of operation to "stop" or in case of power failure, thereby preventing tape spillage.

REFERENCES:
patent: 3117262 (1964-01-01), Mullin
patent: 3202967 (1965-08-01), Wolf
patent: 3444445 (1969-05-01), Mullin
patent: 3693061 (1972-09-01), Kahle
patent: 3704401 (1972-11-01), Miller
patent: 3858116 (1974-12-01), Friedl et al.

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