Control circuit for tape recorders

Details Control circuit for tape recorders Control circuit for tape recorders

1984-03-27

1986-11-25

Canney, Vincent P.

Dynamic magnetic information storage or retrieval

General recording or reproducing

Signal switching

360 61, G11B 1512

Patent

active

046252460

ABSTRACT:
Circuit means for recorders in which the same external pin receives a play signal, a record signal, and a noise reduction signal generated by a user. The circuit means is comprised of a differentiating means for receiving the play and record signals and differentiating between them. A memory means is connected to the differentiating means and stores an indication of the last received of the signals. A first switch means is connected to the memory means and is operable to a first condition to control the play function when the memory means indicates the play signal was last received and to a second condition to control the record function when the memory means indicates the record signal was last received. A second switch means is connected to the external pin receiving the noise reduction signal and generating an ouptut signal to turn on noise reduction means during either the play or record mode.

REFERENCES:
patent: 4203139 (1980-05-01), Horiuchi
patent: 4266254 (1981-05-01), Hobrecht et al.
patent: 4354209 (1982-10-01), Sato et al.

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