Transmitter/receiver for single channel duplex communication sys

Details Transmitter/receiver for single channel duplex communication sys Transmitter/receiver for single channel duplex communication sys

1978-11-29

1980-12-09

Olms, Douglas W.

Multiplex communications

Wide area network

Packet switching

370 24, 370 39, H04B 158

Patent

active

042388503

ABSTRACT:
A transmitter receiver which can be used for a cordless telephone using radio communication. The receiver produces direct conversion from the radio frequency. Local oscillator frequency is modulated by an audio signal to be sent, the modulated signals being passed through a dual splitting and combining network. The splitting network has directional properties for duplex operation. The receiver processes the signals through a differential amplifier to cancel unwanted signals.

REFERENCES:
patent: 3267380 (1966-08-01), Adams
patent: 3353099 (1967-11-01), Hayasi et al.
patent: 3956699 (1976-05-01), Leahy
patent: 4028645 (1977-06-01), Tressa

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