Clarion Co

Yasuhito Fujita

Kazuo Tsubouchi

Kazuya Masu

A code division multiplex communications system has a receiver for receiving a radio wave and transforming the radio wave to an electric signal. A voltage-current converter converts the electric signal to a current signal. A current delay mechanism then sequentially reads the electric signal during a clock pulse. Adders and subtractors manipulated output currents of the current delay mechanism in accordance with a spread code and a reproducing mechanism reproducing a transmission signal depending on the output of the adder and subtractor.

Code division multiplex communications system

A code division multiplex communications system comprising: receiving circuit for receiving a radio wave and transforming the radio wave to an electric signal; delaying circuit for sequentially reading the electric signal at a timing of a clock pulse; switching circuit for shutting off a drive current of the delaying circuit at an OFF timing of the clock pulse; adding and subtracting circuit for adding and subtracting outputs of the delaying circuit in accordance with a spread code; and reproducing circuit for reproducing a transmission signal on the basis of an output of the adding and subtracting circuit. RCS95-120 is similar with respect to a point that an analog LSI matched filter is constructed by a slide capacitor system.

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Miyagi-ken, Japan

Yasuhito Fujita