Pcm telecommunication system with tdma voice transmission

摘要: A terminal of a pulse-code-modulation (PCM) time-division multiple-access (TDMA) telecommunication system, serving for the exchange digitized message samples in form interleaved multibit pulse codes between multiplicity local channels and like number remote accessible through another terminal, has K associated processing stations each n 30channel groups whose incoming lines are sampled by respective group coders. Each station includes multiplexer outputs coders access to is controlled gate response binary activity pattern read out from an buffer register, this being stored memory periodically updated under control monitoring units which test instantaneous condition several feeding coder. The blocks inscription blank inactive shift register individually assigned group, thus containing only significant active at high speed together with allocation bits derived inform origins individual composite word transmitted during frame 125 Mu sec, divided into subframes consisting predetermined time slots established programmer; extra may be included make up allotted slots. At receiving end, reverse procedure followed restoration their original relative position, scanning intervals frame, prior distribution outgoing they intended.