Patent
1976-07-01
1978-03-28
Griffin, Robert L.
325 47, 325 59, H04B 702
Patent
active
040817482
ABSTRACT:
A frequency/space diversity data transmission system includes a transmitter for transmitting two or more distinct RF signals having the same modulation from different antennas separated a wavelength or more, the frequency spacing of the carrier signals being at least ten times greater than the frequency of the modulating signal, and a broad band receiver including a video diode detector and a frequency demodulator which recovers the modulating frequency from the carrier.
REFERENCES:
patent: 2278779 (1942-04-01), Hansell
patent: 2549423 (1951-04-01), Carlson
patent: 2568408 (1951-09-01), Peterson
patent: 3361970 (1968-01-01), Magnuski
patent: 3408572 (1968-10-01), Wolf et al.
patent: 3662268 (1972-05-01), Gans et al.
Bookbinder Marc E.
Griffin Robert L.
Northern Illinois Gas Company
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