Telecommunications – Carrier wave repeater or relay system – With frequency conversion
Patent
1990-09-21
1991-11-12
Kuntz, Curtis
Telecommunications
Carrier wave repeater or relay system
With frequency conversion
455 23, 455 51, 455 75, 455260, 455265, H04B 140, H04B 7165
Patent
active
050654500
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 modulated exciter for converting a frequency modulated intermediate frequency into a frequency modulated broadcast signal. The synchronous frequency modulated exciter 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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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".
Advertising Literature published by Television Technology Corporation entitled "Solid State FM Transmitter FM-300J".
Article published by Omega International entitled "Synchronous Repeaters".
Hu Charlie L.
Law Yee S.
Wu Joseph C.
Kuntz Curtis
Pham Chi H.
TFT, Inc.
Wiseman Jack M.
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