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Fully digital chaotic differential equation-based systems and methods

  • US 9,600,238 B2
  • Filed: 02/29/2012
  • Issued: 03/21/2017
  • Est. Priority Date: 03/01/2011
  • Status: Active Grant
First Claim
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1. A digital circuit, comprising:

  • three digital state registers; and

    three digital logic modules coupled to the three digital state registers, each of the three digital logic modules configured to;

    obtain a plurality of first values from two or more digital state registers of the three digital state registers, where a first digital logic module of the three digital logic modules obtains two first values of the plurality of first values from two of the three digital state registers, where a second digital logic module of the three digital logic modules obtains two first values of the plurality of first values from two of the three digital state registers, and where a third digital logic module of the three digital logic modules obtains three first values of the plurality of first values from the three digital state registers;

    determine a corresponding second value based upon the two or three first values obtained by that digital logic module and a chaotic differential equation; and

    provide the corresponding second value as a respective input to set a state of a corresponding one of the three digital state registers;

    where the three digital logic modules are configured to determine the corresponding second values according to a Runge-Kutta Fourth-order numerical solution, a mid-point numerical solution, or an Euler numerical solution to the chaotic differential equation.

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