Demodulator

Details Demodulator Demodulator

1994-07-08

1997-06-17

Bocure, Tesfaldet

Pulse or digital communications

Receivers

Angle modulation

329310, H04L 2714

Patent

active

056404271

ABSTRACT:
A demodulator is described which includes a hard limiter, reference generator and a phase determiner. The hard limiter produces a binary phase-modulated signal from an analog phase modulated input signal having a first frequency. The reference generator provides a binary reference signal having a second frequency generally equivalent to the first frequency. The phase determiner is operative during a sampling period and determines the phase between the phase-modulated and the reference binary signals during the sampling period.

REFERENCES:
patent: 3997847 (1976-12-01), Tong
patent: 4651108 (1987-03-01), Okita et al.
patent: 5272447 (1993-12-01), Furuya et al.
patent: 5355092 (1994-10-01), Kosaka et al.
patent: 5367538 (1994-11-01), LaRosa et al.
patent: 5369374 (1994-11-01), Kojima

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