Patents by Inventor Douglas William Briggs

Douglas William Briggs has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Multi-capacitor sensor array with integrated temperature measurement
    Patent number: 10792999
    Abstract: A combined force- and temperature-sensing array includes an array of drive plates, an array of sense plates corresponding the drive plates, and a layer of dielectric material separating the drive and sense plates. A diode with a forward junction voltage is connected between at least one of the drive plates and at least one of the sense plates. A multiplexer is operative to select between an electrical pulse or an electrical current for delivery to the at least one drive plate. Circuitry is provided for sensing an applied force resulting from a change in capacitance between the at least one drive plate and the at least one sense plate when the electrical pulse is delivered, and for sensing a temperature resulting from a change in the forward junction voltage of the diode when the current is delivered. The sensor array may be provided as a shoe insert for diabetics with neuropathy.
    Type: Grant
    Filed: January 4, 2018
    Date of Patent: October 6, 2020
    Inventors: Richard H. Harrington, Charles W. Krapf, Douglas William Briggs, Frank Joseph Fedel
  • MULTI-CAPACITOR SENSOR ARRAY WITH INTEGRATED TEMPERATURE MEASUREMENT
    Publication number: 20190277714
    Abstract: A combined force- and temperature-sensing array includes an array of drive plates, an array of sense plates corresponding the drive plates, and a layer of dielectric material separating the drive and sense plates. A diode with a forward junction voltage is connected between at least one of the drive plates and at least one of the sense plates. A multiplexer is operative to select between an electrical pulse or an electrical current for delivery to the at least one drive plate. Circuitry is provided for sensing an applied force resulting from a change in capacitance between the at least one drive plate and the at least one sense plate when the electrical pulse is delivered, and for sensing a temperature resulting from a change in the forward junction voltage of the diode when the current is delivered. The sensor array may be provided as a shoe insert for diabetics with neuropathy.
    Type: Application
    Filed: January 4, 2018
    Publication date: September 12, 2019
    Inventors: Richard H. Harrington, Charles W. Krapf, Douglas William Briggs, Frank Joseph Fedel