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SPANN: Sequence processing artificial neural network

  • US 5,067,095 A
  • Filed: 01/09/1990
  • Issued: 11/19/1991
  • Est. Priority Date: 01/09/1990
  • Status: Expired due to Term
First Claim
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1. A neural network responsive to first and second input signals applied at first and second inputs for providing first and second output signals at first and second outputs symbolic of the information content thereof, comprising:

  • first means responsive to the first output signal for providing a prediction of the first input signal of the neural network at an output;

    second means having first and second outputs and first and second inputs coupled for receiving the first input signal of the neural network and said prediction of the first input signal respectively for monitoring the correlation between the first input signal and said prediction of the first input signal and gating a signal through said second means to said first output of said second means in response to first and second degrees of correlation between the first input signal and said prediction of the first input signal, wherein the first input signal is gated through to said first output of said second means upon detecting said first degree of correlation and said prediction of the first input signal is gated through to said first and second outputs of said second means upon detecting said second degree of correlation, said second output of said second means being coupled to the second output of the neural network;

    third means for progressively delaying said signal gated through said second means to provide a spatial vector of said signal gated through said second means at a plurality of tap points; and

    fourth means responsive to said spatial vector of said signal gated through said second means and to the second input signal of the neural network for providing the first output signal symbolic of the information content of the first and second input signals.

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