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Method of displaying and analyzing nonlinear, dynamic brain signals

  • US 5,218,530 A
  • Filed: 09/11/1989
  • Issued: 06/08/1993
  • Est. Priority Date: 09/11/1989
  • Status: Expired due to Fees
First Claim
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1. A method of programming and operating a computer to automatically graphically display signal values as graphic drawing entites which form a graphic phase space portrait, and to automatically identify a subset of said signal values corresponding to a manually selected subset of one or more graphic drawing entities which form a visually identified pattern within said graphic phase space portrait, comprising the following steps:

  • 1.1 automatically composing by computer a graphic phase space portrait of signal values collected from a series of two or three signal detectors D1, D2 and D3, said signal values comprising substantially simultaneous signal values D1S1, D2S1, and D3S1 collected at discrete time t1, and substantially simultaneous signal values D1S2, D2S2, and D3S2 collected at discrete time t2, by the following steps;

    1.1.1 constructing a graphic drawing point entity P1 having as its drawing coordinates in space at least two of the respective signal values D1S1, D2S1, and D3S1;

    1.1.2 constructing a graphic drawing point entity P2 having as its drawing coordinates in space at least two of the respective signal values D1S2, D2S2, and D3S2;

    1.1.3 constructing a graphic drawing line entity LI1 connecting and terminating at said two graphic drawing point entities P1 and P2;

    1.2 Iterating steps 1.1, 1.1.1, 1.1.2, and 1.1.3 with additional signal values collected substantially simultaneously from at least two of said detectors D1, D2, and D3, at at least one of additional discrete signal times t3, t4, . . . tn;

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