Method and apparatus for decoding audiofrequency information sen

Details Method and apparatus for decoding audiofrequency information sen Method and apparatus for decoding audiofrequency information sen

1983-03-25

1986-10-21

Dwyer, James L.

179 84VF, H04M 1100

Patent

active

046187421

ABSTRACT:
The present invention provides a method and apparatus for decoding audiofrequency information sent through rotary dialing from a calling phone set or through any other phone dialing generating means, as they are currently found in the form of automatic rotary dialers, during the conversation period established between a calling phone set and the apparatus of the present invention located at the called end.
At the same time in which the closure of the d.c. current or conversation circuit takes place, a decoder apparatus is activated at the called party end for decoding the audiofrequency information sent through rotary dialing by the calling party and transforming it into logic data or single pulses for purposes of commanding, ordering or informing.

REFERENCES:
patent: 4006316 (1977-02-01), Bolgiano
patent: 4121053 (1978-10-01), Dick
patent: 4446339 (1984-05-01), Bolgiano

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