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System and method for detecting whether a person is under the influence of a psychotropic substance

  • US 6,671,543 B1
  • Filed: 10/19/2001
  • Issued: 12/30/2003
  • Est. Priority Date: 10/19/2000
  • Status: Expired due to Fees
First Claim
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1. A system for determining whether an equipment operator is under the influence of a psychotropic substance, said system comprising:

  • input means for receiving signals from a subject regarding the frequencies of the subject'"'"'s brain waves, and for producing raw sample data;

    processing means for processing said raw sample data, and for producing evaluation data responsive to said raw sample data and responsive to pre-recorded threshold data, said evaluation data being indicative of whether said raw sample data includes a signal having a frequency within the range of about 14 Hz to about 40 Hz; and

    control means for providing a pass/fail signal responsive to the evaluation data to be used to control equipment.

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