Simultaneous voice and asynchronous data telephone
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jun 3, 1986
Grant Date -
N/A
app pub date -
Jun 28, 1984
filing date -
Jun 28, 1984
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A telephone which can receive and transmit voice and asynchronous data simultaneously is provided. A signalling circuit provides signals indicating the request for a communication link or requesting a communication link to a predetermined location. A transceiver circuit synchronously receives and transmits frames of digital data bits representing data, voice and signalling information. A voice digitizer circuit converts the received frames of digital bits to an analog output and converts a received voice signal to a digital voice output. An interface circuit is used to interface between an asynchronous data source and the synchronous transceiver circuit. The telephone is line powered by utilizing D.C. isolating transformers to power both voice and data circuitry.
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