Phase modulator

Details Phase modulator Phase modulator

1996-03-20

1997-07-29

Mis, David

Modulators

Phase shift keying modulator or quadrature amplitude modulator

Including logic element

375308, H03C 300, H04L 2720

Patent

active

056525524

ABSTRACT:
A phase modulator that generates four different kinds of phases according to input data, using a counter and an adder. There is provided a phase modulator with a serial-to-parallel data converter for converting serial data into two parallel data which are reduced by half of the clock velocity; and a digital phase signal generator for generating digital signals having a phase difference, using a counter and an adder. In this manner, the digital signals have digital values similar to sine waves having a phase difference.

REFERENCES:
patent: 3100890 (1963-08-01), Henning
patent: 3412206 (1968-11-01), Bizet et al.
patent: 4584693 (1986-04-01), Levy et al.

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