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System and method of measuring and correlating human physiological characteristics such as brainwave frequency

  • US 3,875,930 A
  • Filed: 02/22/1973
  • Issued: 04/08/1975
  • Est. Priority Date: 02/22/1973
  • Status: Expired due to Term
First Claim
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1. A system for monitoring variable human physiological characteristics and the like, comprising detection means for deriving an electrical representation of a selected physiological characteristic, calibrating means for deriving an electrical calibrating signal having a preselected identity characteristic and a first preselected information characteristic, a signal generator means responsive to said detection means for providing an electrical monitoring signal having a second preselected identity characteristic different from said first identity characteristic and an information characteristic functionally related to said selected physiological characteristic, and audio means for providing an audible comparison of said identity and information characteristics of said monitoring and calibrating signals.

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