Phase-shift-keying demodulator and demodulation method using...

Details Phase-shift-keying demodulator and demodulation method using... Phase-shift-keying demodulator and demodulation method using...

H - Electricity

04

L

H04L 27/22 (2006.01) H04L 27/233 (2006.01)

Patent

CA 2284138

A demodulator demodulates a PSK communications signal using a synchronizer, a period window detector, and a logic device. The synchronizer provides a transition signal representing reference edges of the communication signal. The period window detector, coupled to the synchronizer, establishes a time interval based on the period of the transition signal. Finally, the logic device, having logic inputs coupled to the outputs of the period-window detector, yields a logic output signal. The demodulator preferably includes a carrier boundary detector for framing messages and minimizing noise detection in a manner that permits signal strength measurements over a wide dynamic range.

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