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Low level bio-telemetry system using C/MOS multiplexing

  • US 3,962,697 A
  • Filed: 06/16/1975
  • Issued: 06/08/1976
  • Est. Priority Date: 06/16/1975
  • Status: Expired due to Term
First Claim
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1. A multi-channel biotelemetry system for multiplexing and transmitting individual data samples derived as signal inputs from a plurality of electrode sources, comprising:

  • a plurality of complimentary-type MOS switching mechanisms receivably-coupled one to each said data samples, said mechanisms being sequentially operated for cumulatively providing an output pulse train formed of said electrode source samplesbroadband main amplifying means receivably coupled to said output pulse train,pulse-position modulating means receivably-coupled to said amplified train for producing a sequence of output pulses spaced one from another a distance directly proportional to the amplitude of each pulse of said train,transmitter means coupled to said modulated output,resetable pulse-generating means for sequentially operating said plurality of switching mechanisms, said means being responsively coupled to said modulated pulse train for generating a separate switch-enabling pulse for each successively-received pulse, andmeans for synchronizing the resetting of said pulse-generating means after said switching mechanisms have been sequentially enabled.

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