Data communication system having level control means

Details Data communication system having level control means Data communication system having level control means

1987-09-18

1990-06-19

Safourek, Benedict V.

Telecommunications

Carrier wave repeater or relay system

Failure compensation

455 10, 455 14, 455 17, 370 74, H04B 336

Patent

active

049349830

ABSTRACT:
In a data communication system, such as an earth station for a satellite communication system, a level control unit enables control of an amplitude of a data signal which is reduced in a cable, regardless of the form of the data signal. The data communication system includes a first system including a unit for sending a continuous signal having a first frequency and a data signal having second frequency, a cable, and a second system for receiving both sent signals through the cable. The second system includes a unit for correcting an amplitude of the data signal on the basis of an amplitude of the continuous signal to a predetermined level. The second system may also include a unit for further correcting the amplitude of the data signal on the basis of the frequency difference between the data signal and continuous signal, so that the amplitude is adjusted at the second frequency.

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patent: 4512033 (1985-04-01), Schrock
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Radio Shack Dictionary of Electronics; Rudolf Graf; 1974; page 429.
British Telecommunications Engineering, vol. 1, No. 2, Jul., 1982, "A New Earth Station at Goonhilly Downs for a Satellite Service to Ships", by M. Flack et al., Woking Surrey, GB; pp. 85-95.

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