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PULSE TRAIN SORTER

  • US 3,743,948 A
  • Filed: 12/04/1969
  • Issued: 07/03/1973
  • Est. Priority Date: 12/04/1969
  • Status: Expired due to Term
First Claim
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1. Apparatus for detecting at least one given series of pulses having a given frequency, said apparatus comprising:

  • a transmission-device having an input-point and a plurality of readout-points which are arranged into a plurality of groups containing more than one readout-point;

    means for applying a series of randomly time-spaced pulses which includes said given series to said input-point of said transmission-device;

    said transmission-device causing each pulse of said random series to produce an individual pulse-signal that is transmitted along said transmission-device, the resultant series of pulse-signals in said transmission-device moving along said transmission-device with the same randomly timespaced separation characteristic that the pulses in said random series have;

    means for obtaining a set of status-signals from one of said groups of said readout-points of said transmission-device, for indicating the presence of individual pulses at each readout point in a selected one of said groups, each of said groups having more than one readout-point and less than all of the readout points;

    the simultaneous presence of similar status signals at all the readout-points of said one of said groups of readout-points being indicative of the presence of the given series of pulses having the given frequency; and

    coincidence means, energized by the set of similar statussignals for producing a trigger signal.

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