H - Electricity – 04 – B
Patent
H - Electricity
04
B
H04B 1/16 (2006.01)
Patent
CA 2103215
MODULATION SIGNAL DETECTION AND DETERMINATION BY STATISTICAL ESTIMATION Abstract of the Disclosure A method and apparatus for the demodulation of received frequency modulated (FM) electromagnetic signals. The desired output is estimated from the input by a special mathematical computation performed in the device. A zero- crossing detector is used to provide the information necessary to estimate the output from the input. The method will result in the superior performance of frequency modulated receivers using this device. Phase reversals, missing parts of the transmissions due to shadow effects, and ordinary noise will not affect the receiver using this device. The device consists of an integrated circuit designed to perform this specific task.
Oyen Wiggs Green & Mutala
Puget Sound Power & Light Company
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