Patents by Inventor James C. France

James C. France 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).

  • Diode noise filter for a speed sensor with mechanically-induced electrical noise
    Patent number: 10161952
    Abstract: A system for filtering mechanically-induced signal noise from a speed sensor may include a rotating member having at least one target group radially oriented about a center of the rotating member, an inductive speed sensor configured to sense the at least one target group, and two diode pairs each having a first diode and a second diode. The two diode pairs may be operatively connected to the inductive speed sensor and configured to receive a signal having the mechanically-induced signal noise. The system may also include a resistor connecting the diode pairs, a processor connected in parallel with the resistor and configured to receive a signal from the inductive speed sensor. The processor may be configured to receive a signal having reduced signal noise via the diode pairs, and determine a rotational speed of the rotating member based on the signal having reduced signal noise.
    Type: Grant
    Filed: May 10, 2016
    Date of Patent: December 25, 2018
    Assignee: HAMILTON SUNDSTRAND CORPORATION
    Inventors: Craig Friedberg, Dean A. Norem, Dennis A. Erickson, James C. France, Christopher J. Courtney, Timothy Maver, Aaron T. Gibson
  • DIODE NOISE FILTER FOR A SPEED SENSOR WITH MECHANICALLY-INDUCED ELECTRICAL NOISE
    Publication number: 20170328929
    Abstract: A system for filtering mechanically-induced signal noise from a speed sensor may include a rotating member having at least one target group radially oriented about a center of the rotating member, an inductive speed sensor configured to sense the at least one target group, and two diode pairs each having a first diode and a second diode. The two diode pairs may be operatively connected to the inductive speed sensor and configured to receive a signal having the mechanically-induced signal noise. The system may also include a resistor connecting the diode pairs, a processor connected in parallel with the resistor and configured to receive a signal from the inductive speed sensor. The processor may be configured to receive a signal having reduced signal noise via the diode pairs, and determine a rotational speed of the rotating member based on the signal having reduced signal noise.
    Type: Application
    Filed: May 10, 2016
    Publication date: November 16, 2017
    Inventors: Craig Friedberg, Dean A. Norem, Dennis A. Erickson, James C. France, Christopher J. Courtney, Timothy Maver, Aaron T. Gibson