Arrangement for combining the output signals from a plurality of

Details Arrangement for combining the output signals from a plurality of Arrangement for combining the output signals from a plurality of

1985-07-16

1988-01-05

Griffin, Robert L.

Telecommunications

Transmitter

Plural separate transmitters or channels

455 52, 330124R, H04B 102

Patent

active

047181117

ABSTRACT:
An arrangement for combining the output signals from a plurality of transmission units (2, 3) tuned to the same frequency and included in the arrangement, while each arrangement is by itself capable of functioning as a transmission unit (2) whose output signal can be combined with that of another transmission unit (3). For each pair of transmission units (2, 3) to be combined the arrangement incorporates control circuitry (5) for generating a control signal used to effect combination of the output signals of the pair of transmission units (2, 3) in phase. The control circuitry (5) includes a sum and difference network (6) connected to the transmission units (2, 3) and a detector (7), for example a phase-sensitive detector, for deriving the control signal from the output signals of the sum and difference network (6), the sign of the control signal being of special importance.

REFERENCES:
patent: 2905813 (1959-09-01), Protze
patent: 3021490 (1962-02-01), Kompfner
patent: 3754188 (1973-08-01), Wilkens
patent: 3965422 (1976-06-01), Tagliaferri
patent: 4010426 (1977-03-01), Rambo
patent: 4064464 (1977-12-01), Morse
patent: 4387347 (1983-06-01), Pierrot
patent: 4392252 (1983-07-01), Cluniat

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