Multiplex communications – Wide area network – Packet switching
Patent
1989-01-18
1989-07-25
Griffin, Robert L.
Multiplex communications
Wide area network
Packet switching
H04J 114
Patent
active
048520870
ABSTRACT:
A telephone system that is useful for facilitating both voice and data communications uses an analog gate. An incoming data signal periodically enters the analog gate. A signal processing means receives the incoming data signal from the gate and an outgoing data signal turns off the gate. The signal processing means includes an automatic gain control for controlling the amplitude of the incoming data signal. The outgoing data signal turns off the gate preventing the outgoing signal from affecting the automatic gain control.
REFERENCES:
patent: 4302629 (1981-11-01), Foulkes et al.
patent: 4577310 (1986-03-01), Korsky et al.
patent: 4646289 (1987-02-01), Tsiakas et al.
patent: 4669090 (1987-05-01), Betts et al.
Chin Wellington
Griffin Robert L.
Solid State Systems, Inc.
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