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PULSE TRAIN DECODER-DEGARBLER

  • US 3,732,563 A
  • Filed: 07/12/1971
  • Issued: 05/08/1973
  • Est. Priority Date: 07/12/1971
  • Status: Expired due to Term
First Claim
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1. An IFF decoder-degarbler comprising:

  • a transponder reply pulse train signal;

    means for detecting the framing pulses of said transponder signal comprising a plurality of equal delay lines, each of said delay lines comprising a plurality of shift registers, said delay lines having a plurality of output taps; and

    a source of clock pulses coupled to said delay lines for shifting said transponder signal through said delay lines;

    means for indicating the non-presence of a garble condition; and

    coincidence means coupled to said detecting and indicating means for permitting decoding of said transponder signal.

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