Automatic stop device for a tape recorder

Details Automatic stop device for a tape recorder Automatic stop device for a tape recorder

1978-11-08

1980-07-29

Wolff, John H.

Dynamic magnetic information storage or retrieval

Automatic control of a recorder mechanism

Controlling the record

360 742, G11B 1548

Patent

active

042153786

ABSTRACT:
An automatic tape recorder-stopping device is described wherein a up-down counter carries out up- or down-counting in accordance with a number of pulse signals issued at a frequency proportional to a number of rotations of a tape reel. The up-down counter generates an output signal when its contents are reduced to zero. The motor circuit for the tape recorder mechanism is opened in response to an output signal from the up-down counter. In this point in time, the counter is held at zero without further counting the pulse signals.

REFERENCES:
patent: 3811640 (1974-05-01), Nagahird et al.
patent: 4044233 (1977-08-01), Sato
patent: 4135216 (1979-01-01), Laufer

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