Method and apparatus for coupling facsimile signals to a telephone network
Programmable data terminal set
Data processing protocol system
Wide band modem for high speed data transmission
ApplicationNo. 06/657730 filed on 10/04/1984
US Classes:375/220, Transmission interface between two stations or terminals358/400, FACSIMILE375/221, Loopback mode455/73, TRANSMITTER AND RECEIVER AT SAME STATION (E.G., TRANSCEIVER)455/79, Automatic (e.g., voice operated)455/88Transceiver controlling a separate transceiver or receiver
ExaminersPrimary: Safourek, Benedict V.
Attorney, Agent or Firm
International ClassesH04N 1/00 (20060101)
H04N 1/327 (20060101)
AbstractAn interface device for connection between a facsimile reproduction machine and a simplex radio includes a receiving circuit and a transmitting circuit. A switch connects an appropriate one of the circuits to the machine. A control circuit monitors the change in the mode of operation of the machine and operates upon the switch to cause a corresponding change of connection to the machine. The control circuit also operates upon the transceiver to condition it to a transmit mode upon the transmit circuit being selected.