Voice frequency signal actuated tape recorder

Details Voice frequency signal actuated tape recorder Voice frequency signal actuated tape recorder

1979-12-10

1982-02-23

Cardillo, Jr., Raymond F.

Dynamic information storage or retrieval

Combined independent audio systems

Radio

369 50, 179 1VC, G11B 3100

Patent

active

043171893

ABSTRACT:
A voice starting device for actuating a tape recorder with a voice signal is disclosed. In the device, a comparator compares the voice signal with a preset reference voltage and actuates a switching element for driving a motor circuit. A charging circuit stores the output of the comparator to maintain the output of the comparator for a predetermined time after termination of the voice signal.

REFERENCES:
patent: 2410835 (1946-11-01), Montague
patent: 2411501 (1946-11-01), Brubaker
patent: 3436662 (1969-04-01), Kobayashi
patent: 4075435 (1978-02-01), Eppler, Jr.
patent: 4120009 (1978-10-01), Iwasawa
patent: 4188549 (1980-02-01), Dorais

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