Demodulators – Amplitude modulation demodulator – Having specific distortion – noise or other interference...
Patent
1984-11-01
1986-12-09
Grimm, Siegfried H.
Demodulators
Amplitude modulation demodulator
Having specific distortion, noise or other interference...
329104, 329137, 329145, 329122, 375 82, 375 84, 375 94, H04L 2722
Patent
active
046282718
ABSTRACT:
A differential phase shift keying demodulator in which a signal modulated by differential phase shift keying is compared with the modulated signal delayed an integral number times as much as a period of the carrier wave of the modulated signal and shorter than a transmission period for one bit of the modulated signal.
REFERENCES:
patent: 3022461 (1962-02-01), Wilcox, Jr.
patent: 3028487 (1962-04-01), Losee
patent: 3470478 (1969-09-01), Crafts
patent: 3778727 (1973-12-01), Williams
patent: 3980824 (1976-09-01), Lamb et al.
Canon Kabushiki Kaisha
Grimm Siegfried H.
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