×

Substance detection device

  • US 9,739,774 B2
  • Filed: 09/03/2015
  • Issued: 08/22/2017
  • Est. Priority Date: 09/03/2015
  • Status: Active Grant
First Claim
Patent Images

1. A substance detection device, comprising:

  • a substrate configured to carry a substance;

    wherein the substrate has a length and a substance loss along the length of the substrate;

    a test region coupled to the substrate and configured to bond to at least a portion of the substance;

    a sensor coupled to the substrate at a fixed location along the length and having a sensing signal output;

    an integration circuit coupled to the sensor and configured to integrate, over a time interval, a signal from the sensing signal output; and

    a detection circuit coupled to the integration circuit and configured to output a substance detected signal if the integrated sensing signal output signal deviates from the substance loss corresponding to the fixed sensor location.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×