Patents by Inventor Ken Yoshitake

Ken Yoshitake 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).

  • Moving state detecting device
    Patent number: 10012672
    Abstract: To accurately calculate an attached angle of an accelerometer and accurately correct an acceleration that is obtained from the accelerometer: a frequency analyzing module of an acceleration corrector divides a sensor coordinate system acceleration into a bias frequency component, a gravity frequency component, a movement acceleration frequency component, and a noise frequency component, through a wavelet transform. The frequency analyzing module outputs a sum component of the gravity frequency component and the movement acceleration frequency component to an attached angle estimating module and a correcting operation module. The attached angle estimating module estimation-calculates the attached angle of an accelerometer and outputs it to the correcting operation module.
    Type: Grant
    Filed: April 19, 2010
    Date of Patent: July 3, 2018
    Assignee: FURUNO ELECTRIC COMPANY LIMITED
    Inventors: Hiroyuki Toda, Ken Yoshitake
  • MOVING STATE DETECTING DEVICE
    Publication number: 20120041702
    Abstract: To accurately calculate an attached angle of an accelerometer and accurately correct an acceleration that is obtained from the accelerometer: a frequency analyzing module of an acceleration corrector divides a sensor coordinate system acceleration into a bias frequency component, a gravity frequency component, a movement acceleration frequency component, and a noise frequency component, through a wavelet transform. The frequency analyzing module outputs a sum component of the gravity frequency component and the movement acceleration frequency component to an attached angle estimating module and a correcting operation module. The attached angle estimating module estimation-calculates the attached angle of an accelerometer and outputs it to the correcting operation module.
    Type: Application
    Filed: April 19, 2010
    Publication date: February 16, 2012
    Inventors: Hiroyuki Toda, Ken Yoshitake