Differential tri-phase shift keyed modulation

Details Differential tri-phase shift keyed modulation Differential tri-phase shift keyed modulation

1977-02-02

1978-10-17

Safourek, Benedict V.

Telegraphy

Systems

Alternating or pulsating current

178 691, H04L 2724

Patent

active

041210506

ABSTRACT:
A differential tri-phase shift keyed modulation system permits both data and data synchronization signals to be transmitted at a single frequency which are then differentiated by phase.

REFERENCES:
patent: 3619503 (1971-11-01), Ragsdale
patent: 3665328 (1972-05-01), Widl
patent: 3748385 (1973-07-01), Okano
patent: 3818135 (1974-06-01), Tannhauser
patent: 3867574 (1975-02-01), McIntosh
patent: 3919653 (1975-11-01), LeMouel
patent: 3944939 (1976-03-01), LeMouel
patent: 3970945 (1976-07-01), Knapp
patent: 3983499 (1976-09-01), Tan
Three-Phase Modulator-Demodulator, D. J. Petrone, pp. 81-83, IBM Technical Disclosure Bulletin, vol. 5, #7, Dec. 1962.

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