Patents by Inventor Craig M Aykroyd

Craig M Aykroyd 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).

  • Patent number: 8937478
    Abstract: An electrostatic occupant detection system includes an electrostatic sensor and an electronic control unit. The electronic control unit is switchable between an occupant determination state in which the electronic control unit outputs a sine wave having a constant amplitude and a diagnosis state in which the electronic control unit maintains a voltage of the electrostatic sensor at a constant level. The electronic control unit gradually changes at least one of an amplitude and a frequency of the sine wave either when the electronic control unit switches from the occupant determination state to the diagnosis state and/or when the electronic control unit switches from the diagnosis state to the occupant determination state.
    Type: Grant
    Filed: May 9, 2011
    Date of Patent: January 20, 2015
    Assignees: Denso Corporation, Freescale Semiconductor, Inc.
    Inventors: Ryo Shimizu, Craig M. Aykroyd, John M. Pigott
  • Publication number: 20110279126
    Abstract: An electrostatic occupant detection system includes an electrostatic sensor and an electronic control unit. The electronic control unit is switchable between an occupant determination state in which the electronic control unit outputs a sine wave having a constant amplitude and a diagnosis state in which the electronic control unit maintains a voltage of the electrostatic sensor at a constant level. The electronic control unit gradually changes at least one of an amplitude and a frequency of the sine wave either when the electronic control unit switches from the occupant determination state to the diagnosis state and/or when the electronic control unit switches from the diagnosis state to the occupant determination state.
    Type: Application
    Filed: May 9, 2011
    Publication date: November 17, 2011
    Applicants: Freescale Semiconductor, Inc., DENSO CORPORATION
    Inventors: Ryo Shimizu, Craig M. Aykroyd, John M. Pigott
  • Patent number: 7857510
    Abstract: A temperature sensor, in accordance with the principles of the invention comprises a silicon substrate. The silicon substrate includes a bandgap, an offset circuit for providing calibration offsets, and a gain block for providing an output that varies substantially linearly with changes in temperature of the substrate.
    Type: Grant
    Filed: November 8, 2003
    Date of Patent: December 28, 2010
    Inventors: Carl F Liepold, Craig M Aykroyd, Jonathan Daniel McLin