Patents by Inventor Barry K. Nelson

Barry K. Nelson 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).

  • Publication number: 20140224961
    Abstract: A light sensor is provided that includes an exposed light transducer for accumulating charge in proportion to light incident thereon over an integration period; and a light-to-pulse circuit in communication with the exposed light transducer, the light-to-pulse circuit operative to output a pulse having a pulse width based on the charge accumulated by the exposed light transducer. The light-to-pulse circuit may include a one shot logic circuit that contributes to generation of the pulse. The light sensor may include an input/output pad, a capacitor provided at the input/output pad for blocking static electricity, an input low pass filter provided at the input/output pad for blocking electromagnetic interference, and/or a bandgap voltage reference circuit connected to a power source having a supply voltage level in a range of about 3.3V to about 5.0V, and for generating a set of stable reference voltages throughout the supply voltage level range.
    Type: Application
    Filed: February 12, 2013
    Publication date: August 14, 2014
    Applicant: GENTEX CORPORATION
    Inventors: Barry K Nelson, Jon H. Bechtel, Daniel G. McMillan, Spencer D. Reese
  • Patent number: 8620523
    Abstract: A rearview assembly configured for use with a vehicle and method are provided, wherein the rearview assembly includes a first light sensor generally facing forward with respect to an forward driving orientation of the vehicle and configured to detect ambient light, a second light sensor generally facing forward with respect to a forward driving orientation of the vehicle and configured to detect ambient light, a rearview component configured to display an image rearward of the vehicle, and a processor communicatively connected to the first light sensor, the second light sensor, and the rearview component, wherein the processor is configured to control the rearview component based upon light detected by at least one of the first and second light sensors.
    Type: Grant
    Filed: June 12, 2012
    Date of Patent: December 31, 2013
    Assignee: Gentex Corporation
    Inventors: Barry K. Nelson, David J. Schmidt, Neil J. Boehm
  • Publication number: 20120330504
    Abstract: A rearview assembly configured for use with a vehicle and method are provided, wherein the rearview assembly includes a first light sensor generally facing forward with respect to an forward driving orientation of the vehicle and configured to detect ambient light, a second light sensor generally facing forward with respect to a forward driving orientation of the vehicle and configured to detect ambient light, a rearview component configured to display an image rearward of the vehicle, and a processor communicatively connected to the first light sensor, the second light sensor, and the rearview component, wherein the processor is configured to control the rearview component based upon light detected by at least one of the first and second light sensors.
    Type: Application
    Filed: June 12, 2012
    Publication date: December 27, 2012
    Inventors: Barry K. Nelson, David J. Schmidt, Neil J. Boehm
  • Patent number: 7706046
    Abstract: According to the present invention, a rearview mirror comprises a first substrate having a front surface and a rear surface, a reflective coating disposed on a surface of the first substrate, and an electronic circuit component secured to the rear surface of the first substrate. The mirror element may be an electrochromic mirror element comprising a transparent second substrate positioned in front of the first substrate. The electronic component secured to the rear surface may be a component of a drive circuit for the electrochromic mirror element. The rearview mirror element may further comprise electrically conductive tracings provided on the rear surface of the first substrate electrically coupled to the electrical component. The tracings may be used to electrically couple the drive circuit to the electrodes of the electrochromic mirror element. The tracings may be deposited on the rear surface using numerous methods including inkjet printing techniques.
    Type: Grant
    Filed: June 8, 2004
    Date of Patent: April 27, 2010
    Assignee: Gentex Corporation
    Inventors: Frederick T. Bauer, Robert R. Turnbull, Thomas F. Guarr, Leroy J. Kloeppner, David L. Eaton, Joel A. Stray, Barry K. Nelson