Thin a definite time position multichannel transmission system using clock pulses each occurring wi

Claim 1

A time division multichannel transmission system, which comprises: at least one generator for producing a Clock pulse train modulated by an M-sequence signal and for applying said clock pulse train to a reference signal bus line; a plurality of transmitters connected to said reference signal and transmission bus lines and including first delaying means for delaying said M-sequence signal so as to produce a plurality of first delayed replicas of said M-sequence signal which are delayed from one another by the repetition period of said clock pulse train, a first logical circuit means for producing carrier pulses each appearing within a time slot assigned to a distinct signal channel by combining said first delayed replicas, and modulating means for modulating in amplitude said carrier pulses with a given information signal and for sending out the modulated carrier pulses to said transmission line; and a plurality of receivers connected to said reference signal and transmission bus lines and including a second separating means connected to said reference signal bus line for separating said M-sequence signal from said clock pulse train, second delaying means for delaying said M-sequence signal so as to produce a plurality of second delayed replicas of said M-sequence signal which are delayed from one another by the repetition period of said clock pulse train, a second logical circuit means for producing gate pulses each appearing within said time slot by combining said delayed replicas, gate means connected to said transmission line for passing therethrough said carrier pulse during the pulse width of said gate pulse, and demodulating means for demodulating the passed carrier pulse into said information signal.