Telecommunications – Carrier wave repeater or relay system – With frequency conversion
Patent
1989-03-21
1991-09-03
Kuntz, Curtis
Telecommunications
Carrier wave repeater or relay system
With frequency conversion
455 23, 455 51, 455 75, 455260, 455265, H04B 715
Patent
active
050461249
ABSTRACT:
A frequency modulated radio frequency broadcast network in which re-transmitting stations employ a synchronous frequency modulated booster system. Included in the frequency modulated booster system is a synchronous frequency modualted exciter for converting a frequency modulated intermediate frequency into a frequency modulated broadcast signal. The synchronous frequency modulated exicter includes phase locked loop circuits for synchronizing the re-transmitted frequency modulated broadcast signal with the frequency modulated intermediate frequency signal by detecting reference signals in the composite baseband of the intermediate frequency signal and in the composite signal frequency modulated broadcast signal.
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Article Published by Omega International entitled "Synchronous Repeaters".
Advertising Literature Published by Continental Electronics Mfg. Co. entitled "Continental Type 802A FM Exciter", 1984.
Advertising Literature published by Broadcast Electronics Inc. entitled "FX-30 Synthesized FM Exciter".
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Hu Charlie L.
Law Yee S.
Wu Joseph C.
Kuntz Curtis
Pham Chi H.
TFT, Inc.
Wiseman Jack M.
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