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Optical measurement instrument for living body

  • US 20060184047A1
  • Filed: 03/10/2006
  • Published: 08/17/2006
  • Est. Priority Date: 11/17/1995
  • Status: Abandoned Application
First Claim
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1. An input instrument for a living body, using an optical measurement system for the living body, comprising:

  • first and second light incident means arranged on a head of a living body;

    first and second light detection means which are paired with the first and the second light incident means respectively, and which are provided to collect light which passes through the living body based on the light irradiated onto the head of the living body by the light incident means;

    means for obtaining measurement signals by measuring a plurality of regions of the living body by the first and the second light incident means, the first and the second light detection means, and for calculating the characteristic parameters of the signals of an arbitrary time interval of the measured signals;

    memory means for memorizing standard deviations and mean values of the characteristic parameters corresponding to a mind of the living body as reference data; and

    means for calculating indexes to determine whether the measured signals belong to a distribution of the reference data by using the standard deviations and the mean values of the characteristic parameters of the signals of the arbitrary time interval and the reference data, and means for determining a type of an output signal;

    wherein the first light incident means and the first light detection means is used to measure a first measurement region and the second light incident means and the second light detection means is used to measure a second measurement region.

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