Patents by Inventor Seiichi SUGIYAMA

Seiichi SUGIYAMA 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).

  • Angular velocity sensor correction device and method for correcting output signal from angular velocity sensor, and direction estimation device and method for estimating direction by correcting output signal from angular velocity sensor
    Patent number: 11085773
    Abstract: A GPS positioning unit acquires GPS positioning data of an object positioned based on a signal from a GPS satellite, and an angular velocity sensor acquires an output signal of the object. A sensitivity coefficient calculation unit sequentially derives a temporary sensitivity coefficient of the angular velocity sensor based on the GPS positioning data and the output signal. The sensitivity coefficient calculation unit derives a sensitivity coefficient for correcting the angular velocity output from the angular velocity sensor, by performing statistical processing on the temporary sensitivity coefficient of the angular velocity sensor that has been sequentially derived. A correlation coefficient calculation unit derives a correlation coefficient based on the GPS positioning data and the output signal. The sensitivity coefficient calculation unit changes a forgetting coefficient to be used when the statistical processing is performed, in accordance with the correlation coefficient.
    Type: Grant
    Filed: January 20, 2017
    Date of Patent: August 10, 2021
    Assignee: JVC KENWOOD CORPORATION
    Inventors: Takahiro Kondoh, Seiichi Sugiyama, Hidenori Fukushima
  • ANGULAR VELOCITY SENSOR CORRECTION DEVICE AND METHOD FOR CORRECTING OUTPUT SIGNAL FROM ANGULAR VELOCITY SENSOR, AND DIRECTION ESTIMATION DEVICE AND METHOD FOR ESTIMATING DIRECTION BY CORRECTING OUTPUT SIGNAL FROM ANGULAR VELOCITY SENSOR
    Publication number: 20170131107
    Abstract: A GPS positioning unit acquires GPS positioning data of an object positioned based on a signal from a GPS satellite, and an angular velocity sensor acquires an output signal of the object. A sensitivity coefficient calculation unit sequentially derives a temporary sensitivity coefficient of the angular velocity sensor based on the GPS positioning data and the output signal. The sensitivity coefficient calculation unit derives a sensitivity coefficient for correcting the angular velocity output from the angular velocity sensor, by performing statistical processing on the temporary sensitivity coefficient of the angular velocity sensor that has been sequentially derived. A correlation coefficient calculation unit derives a correlation coefficient based on the GPS positioning data and the output signal. The sensitivity coefficient calculation unit changes a forgetting coefficient to be used when the statistical processing is performed, in accordance with the correlation coefficient.
    Type: Application
    Filed: January 20, 2017
    Publication date: May 11, 2017
    Applicant: JVC KENWOOD Corporation
    Inventors: Takahiro KONDOH, Seiichi SUGIYAMA, Hidenori FUKUSHIMA