Phase modulator for digital data transmission - uses N different phase states of carrier signal to represent corresponding number of logic words,申请号FR19770031276-传众专利搜索

Phase modulator for digital data transmission - uses N different phase states of carrier signal to represent corresponding number of logic words

申请公布号：FR2406909(A1)

申请号：FR19770031276

申请日期：1977.10.18

申请公布日期：1979.05.18

申请人：

THOMSON CSF

发明人：JEAN-FRANCOIS CORNET

分类号：H04L27/20;(IPC1-7):03C3/02

主分类号：H04L27/20

摘要：<p>The phase modulator for the transmission of digital signals has n phase states corresponding to n distinct logic words. The modulator receives a carrier frequency F, and generates n signals of the same frequency F having phases of no2 pi/n where no takes the values 1, 2 ....n. A logic multiplexer comprises n inputs to which these signals are applied for transmission of a digitally encoded message using n words. A clock controls operation of the system using a frequency of nF.</p>