Telephone answering machine

Details Telephone answering machine Telephone answering machine

1980-07-07

1982-03-09

Moffitt, James W.

179 611, 179 613, H04M 164

Patent

active

043190898

ABSTRACT:
A telephone answering machine utilizing a single magnetic tape to record both outgoing announcements and incoming messages. Stop tones are recorded as audio frequency signals at fixed intervals on the tape to define successive announcement/message segments, each segment containing a desired announcement followed by an interval for recording an incoming message. The stop tones also control tape movement and cause the machine to stop at the end of each tape section.

REFERENCES:
patent: 3539728 (1970-11-01), Rubenstein
patent: 3725589 (1973-04-01), Golden
patent: 3935390 (1976-01-01), Winterhalter
patent: 3943292 (1976-03-01), Yokazawa
patent: 3977023 (1976-08-01), Nakamura

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