Two-way communications system and method of synchronizing

Details Two-way communications system and method of synchronizing Two-way communications system and method of synchronizing

1979-03-12

1980-10-21

Stewart, David L.

Multiplex communications

Wide area network

Packet switching

178 696, 370100, 375 24, H04J 514

Patent

active

042297419

ABSTRACT:
A control unit and a remote unit each including a transmitter and receiver with the remote unit transmitter and control unit receiver being synchronized first by means of a variable oscillator in the control unit and connected to the receiver in a closed loop, and the transmitter of the control unit and receiver of the remote unit being synchronized second by sensing errors between a received signal and the operating frequency of the receiver in the remote unit and transmitting the error signal back to the control unit by way of the previously synchronized transmitter/receiver for controlling the frequency of the transmitter in the control unit.

REFERENCES:
patent: 3546701 (1970-12-01), Kurth
patent: 3550134 (1970-12-01), Kurth
patent: 3795772 (1974-03-01), Hill
patent: 3825830 (1974-07-01), O'Connor
patent: 4019138 (1977-04-01), Watanabe
patent: 4053889 (1977-10-01), Johnson
patent: 4075427 (1978-02-01), Matisson

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