Importance

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Abstract

A spread spectrum communication system has, in a transmission part, a first circuit for extracting a first carrier signal from a predetermined broadcase wave and generating a first clock signal by using the first carrier signal, a second circuit for generating a first pseudo-noise signal by using the first clock signal from the first circuit, and a third circuit for modulating an information signal and broadening a frequency band of the modulated information signal by using the first pseudo-noise signal from the second circuit. A reception part of the spread spectrum communication system uses a second clock signal, a frequency of which is identical to that of the first clock signal. Thereby the second clock signal becomes identical to the first clock signal in frequency.

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First Claim