Patents by Inventor Takurou Tajima

Takurou Tajima 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).

  • Respiration estimation method and apparatus
    Patent number: 11234613
    Abstract: There is provided a respiration estimation method. The respiration estimation method includes a first step (S107) of estimating a breathing rate of a subject based on each of a time-series signal of first data relating to a cardiac function of the subject and a time-series signal of second data relating to an acceleration by a respiratory motion of the subject, a second step (S108) of estimating a breathing rate obtained by filtering noise using a Kalman filter for each of the breathing rate estimated based on the first data and the breathing rate estimated based on the second data, and a third step (S109) of executing weighted averaging processing for the plurality of estimated values of the breathing rates obtained in the second step.
    Type: Grant
    Filed: November 25, 2016
    Date of Patent: February 1, 2022
    Assignee: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventors: Takayuki Ogasawara, Takurou Tajima, Kei Kuwabara, Nobuaki Matsuura, Ryoichi Kasahara
  • RESPIRATION ESTIMATION METHOD AND APPARATUS
    Publication number: 20180344208
    Abstract: There is provided a respiration estimation method. The respiration estimation method includes a first step (S107) of estimating a breathing rate of a subject based on each of a time-series signal of first data relating to a cardiac function of the subject and a time-series signal of second data relating to an acceleration by a respiratory motion of the subject, a second step (S108) of estimating a breathing rate obtained by filtering noise using a Kalman filter for each of the breathing rate estimated based on the first data and the breathing rate estimated based on the second data, and a third step (S109) of executing weighted averaging processing for the plurality of estimated values of the breathing rates obtained in the second step.
    Type: Application
    Filed: November 25, 2016
    Publication date: December 6, 2018
    Inventors: Takayuki Ogasawara, Takurou Tajima, Kei Kuwabara, Nobuaki Matsuura, Ryoichi Kasahara