Dynamic magnetic information storage or retrieval – Head – Core
Patent
1979-04-06
1980-11-25
Cardillo, Jr., Raymond F.
Dynamic magnetic information storage or retrieval
Head
Core
360 741, H04M 164, G11B 1544
Patent
active
042360447
ABSTRACT:
The inventive control mechanism useful in a answering device in which previously recorded incoming messages can be played out via the telephone line under remote control. Remote playout is initiated upon receipt of a first beep tone transmitted by the user. This causes a cam assembly and a related cam motor control circuit, disclosed herein, automatically to position the tape reel drive motor first to rewind the tape and then to drive the tape forward for message playout. Remote playout is terminated by receipt of a second such beep tone.
REFERENCES:
patent: 3067289 (1962-12-01), Zimmermann
patent: 3136856 (1964-06-01), Zimmermann
patent: 3673332 (1972-06-01), Muller et al.
patent: 4104487 (1978-08-01), Jacobson
patent: 4126763 (1978-11-01), Jacobson et al.
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