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Method and apparatus for producing programmable probability distribution function of pseudo-random numbers

  • US 9,417,845 B2
  • Filed: 03/04/2014
  • Issued: 08/16/2016
  • Est. Priority Date: 10/02/2013
  • Status: Expired due to Fees
First Claim
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1. A method for reducing spikes in an artificial nervous system, the method comprising:

  • generating, by an apparatus, a sequence of random numbers;

    performing, by the apparatus, bit-level operations on the generated sequence of random numbers to generate a first sequence of pseudo-random numbers with a programmable probability distribution function (PDF), wherein performing the bit-level operations on the generated sequence of random numbers comprises;

    performing AND operation on bits of the sequence of random numbers;

    passing the ANDed bits through a cascade of OR gates to obtain bit-mask values; and

    applying the bit-mask values to bits of the sequence of random numbers to generate the first sequence of pseudo-random numbers with the programmable PDF;

    generating, by the apparatus, another sequence of random numbers;

    performing, by the apparatus, bit-level operations between the first sequence and the other sequence to generate a second sequence of pseudo-random numbers with a programmable PDF; and

    dropping, by the apparatus, spikes associated with one or more artificial neurons of the artificial nervous system in accordance with the PDF of the second sequence of pseudo-random numbers.

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