Coherent phase shift keyed demodulator for power line communicat

Details Coherent phase shift keyed demodulator for power line communicat Coherent phase shift keyed demodulator for power line communicat

1979-09-21

1982-01-19

Grimm, Siegfried H.

Demodulators

Amplitude modulation demodulator

Having specific distortion, noise or other interference...

329110, 375 83, H03D 300, H04L 2722

Patent

active

043119646

ABSTRACT:
An apparatus and method for coherent phase demodulation of a binary phase shift keyed carrier includes sequentially processing plus and minus polarity samples of plural carrier segments occurring within each carrier data symbol. The samples for each segment provide a binary coded signal for producing corresponding first and second relative phase angle vector signals. The second vector signals are summed over several data symbols to generate reference phase angle signal vector signals. Correlation signals are produced from phase comparison of each of the first vectors with the reference vector signals. The correlation signals are summed in a synchronized relationship for the carrier segments included in each data symbol. The sums of the correlation signals represent either positive or negative correlations with the one and zero data bits of the carrier data symbols.

REFERENCES:
patent: 3483546 (1969-12-01), Ausfeld
patent: 3758870 (1973-09-01), Schmitt et al.
patent: 3818344 (1974-06-01), Muilwijk
patent: 3838350 (1974-09-01), Ewanus et al.
patent: 4012734 (1977-03-01), Jagoda et al.
patent: 4130802 (1978-12-01), Nossen et al.
patent: 4135191 (1979-01-01), Sawicki
patent: 4160245 (1979-07-01), Scott
patent: 4166984 (1979-09-01), Jenkins
patent: 4190802 (1980-02-01), Levine
Bennet and Davey, "Data Transmission", Library of Congress Catalog Card No. 64-22948, pp. 252-253 and 264-266.

Affiliated with

Also associated with

Rating

Coherent phase shift keyed demodulator for power line communicat does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Coherent phase shift keyed demodulator for power line communicat, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Coherent phase shift keyed demodulator for power line communicat will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1917552