Apparatus for synthesizing phase-modulated carrier wave

Details Apparatus for synthesizing phase-modulated carrier wave Apparatus for synthesizing phase-modulated carrier wave

1974-09-20

1976-01-27

Safourek, Benedict V.

Telegraphy

Systems

Alternating or pulsating current

235154, 325163, H04L 2720

Patent

active

039353869

ABSTRACT:
Digital logic apparatus for synthesizing a phase-modulated carrier wave wherein phase shifts between successive carrier-wave segments encode data elements. Carrier-wave segments having different phases are stored in the form of digitally encoded samples in a memory. A digital-to-analog converter is connected to convert sequentially read samples of selected segments into the phase-modulated carrier wave. A combinational logic circuit selects each segment to be addressed according to an applied data element and the phase of the previously selected segment. Means are provided to overlap and blend successively addressed segments to provide smooth phase transitions in the synthesized wave.

REFERENCES:
patent: 3485949 (1969-12-01), Haas
patent: 3597599 (1971-08-01), Melvin
patent: 3818135 (1974-06-01), Tannhauser
patent: 3867574 (1975-02-01), McIntosh

Affiliated with

Also associated with

Rating

Apparatus for synthesizing phase-modulated carrier wave does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Apparatus for synthesizing phase-modulated carrier wave, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus for synthesizing phase-modulated carrier wave will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1812861