Demodulator of receiver used for communications

Details Demodulator of receiver used for communications Demodulator of receiver used for communications

1996-12-04

1998-12-08

Chin, Stephen

Pulse or digital communications

Receivers

Angle modulation

375227, 375365, 375326, 375344, 375345, 4552451, H04L 2722, H04B 1700

Patent

active

058481044

ABSTRACT:
A demodulator of the present invention includes a reception portion for receiving a communication signal including predetermined information outputted from a modulator; a correction parameter output portion connected to the reception portion for outputting a correction parameter based on the communication signal; a demodulated information output portion connected to the reception portion and the correction parameter output portion for outputting demodulated information based on the communicating signal and the correction parameter; a detector for detecting whether the demodulated information includes the predetermined information, for outputting a first signal when the predetermined information is detected and for outputting a second signal when the predetermined information is not detected; a storage portion connected to the detector for storing the correction parameter outputted from the correction parameter when the first signal is inputted, and for outputting the stored correction parameter to the correction parameter output portion when the second signal is inputted.

REFERENCES:
patent: 5335348 (1994-08-01), Kono
patent: 5376894 (1994-12-01), Petranovich
Shousei Yoshida and Hideho Tomita, "A New Coherent Demodulation Technique for Land-Mobile Satellite Communications", International Mobile Satellite Conference, Ottawa, 1990.

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