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Organism state quantity measuring apparatus

  • US 9,041,582 B2
  • Filed: 01/08/2013
  • Issued: 05/26/2015
  • Est. Priority Date: 07/16/2010
  • Status: Expired due to Fees
First Claim
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1. An organism state quantity measuring apparatus comprising:

  • a detector comprising hardware that detects information indicating a state of an organism from the organism or an organism specimen extracted from the organism and outputs the detected information as a current;

    a current-voltage conversion circuit that converts the current output from the detector into a voltage;

    a double-integration-type A/D conversion circuit having an integration capacitor that is charged based on a voltage output from the current-voltage conversion circuit and is thereafter discharged, and a counter that measures a charge time during which the integration capacitor is charged and a discharge time during which the integration capacitor is discharged, the A/D conversion circuit converting into digital quantities the charge time and the discharge time measured by the counter, and outputting the digital quantities; and

    an information processor comprising hardware that calculates a state quantity of the organism based on a ratio of the digital quantities of the charge time output from the A/D conversion circuit to the digital quantities of the discharge time output from the A/D conversion circuit.

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