Patents by Inventor James P. Dieffenderfer

James P. Dieffenderfer 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).

  • Publication number: 20230000423
    Abstract: Systems and methods for predicting problem behavior in individuals with developmental and behavior disabilities. A plurality of sensors are configured to collect multimodal data signals of a subject individual including a wearable upper body motion sensing device with a plurality of inertial measurement units (IMUs). An electronic controller is configured to receive output signals from each of IMUs and to model an upper body position of the subject individual based on the output signals from the IMUs. A trained machine-learning model is then applied by providing an input data set that includes multimodal signal data (e.g., including signal data from at least one IMU) and/or features extracted from the multimodal signal data. The machine-learning model is trained to produce as output an indication of whether a precursor to the problem behavior is detected and, in response to detecting the precursor, a notification (or alarm) is generated.
    Type: Application
    Filed: July 1, 2022
    Publication date: January 5, 2023
    Inventors: Nilanjan Sarkar, Zhaobo Zheng, Amy S. Weitlauf, John Staubitz, Zachary E. Warren, James P. Dieffenderfer
  • Publication number: 20220287630
    Abstract: Systems and methods for monitoring sleep are disclosed. According to an aspect, a method includes emitting light into tissue. The method also includes detecting light backscattered from the tissue. Further, the method includes determining a sleep pattern based on the backscattered light.
    Type: Application
    Filed: June 3, 2022
    Publication date: September 15, 2022
    Inventors: Alper Bozkurt, James P. Dieffenderfer
  • Patent number: 11357445
    Abstract: Systems and methods for monitoring sleep are disclosed. According to an aspect, a method includes emitting light into tissue. The method also includes detecting light backscattered from the tissue. Further, the method includes determining a sleep pattern based on the backscattered light.
    Type: Grant
    Filed: July 19, 2019
    Date of Patent: June 14, 2022
    Assignee: North Carolina State University
    Inventors: Alper Bozkurt, James P. Dieffenderfer
  • Patent number: 10893825
    Abstract: A spirometer includes a housing, a mouthpiece coupled to the housing, and a measurement unit. The measurement unit is configured to receive air expelled by a user, and generate an electrical quantity corresponding to a peak expiratory flow or a forced expiratory volume based on the expelled air. The spirometer also includes a processing module supported by the housing, and configured to receive the electrical quantity from the measurement unit, a display coupled to the measurement unit to display an indication of the peak expiratory flow or the forced expiratory volume, and an energy harvester. The energy harvester is coupled to the measurement unit and the processing module, and is configured to receive energy from one of a group consisting of the measurement unit and an energy sensor, store the received energy in an energy storage device, and transfer the energy to the processing module.
    Type: Grant
    Filed: January 31, 2015
    Date of Patent: January 19, 2021
    Assignee: North Carolina State University
    Inventors: James P. Dieffenderfer, Mike A. Brown, Leigh M. Johnson, John F. Muth
  • Publication number: 20190336068
    Abstract: Systems and methods for monitoring sleep are disclosed. According to an aspect, a method includes emitting light into tissue. The method also includes detecting light backscattered from the tissue. Further, the method includes determining a sleep pattern based on the backscattered light.
    Type: Application
    Filed: July 19, 2019
    Publication date: November 7, 2019
    Inventors: Alper Bozkurt, James P. Dieffenderfer
  • Patent number: 10368798
    Abstract: Systems and methods for monitoring sleep are disclosed. According to an aspect, a method includes emitting light into tissue. The method also includes detecting light backscattered from the tissue. Further, the method includes determining a sleep pattern based on the backscattered light.
    Type: Grant
    Filed: June 29, 2014
    Date of Patent: August 6, 2019
    Assignee: North Carolina State University
    Inventors: Alper Bozkurt, James P. Dieffenderfer
  • Publication number: 20170007159
    Abstract: A spirometer includes a housing, a mouthpiece coupled to the housing, and a measurement unit. The measurement unit is configured to receive air expelled by a user, and generate an electrical quantity corresponding to a peak expiratory flow or a forced expiratory volume based on the expelled air. The spirometer also includes a processing module supported by the housing, and configured to receive the electrical quantity from the measurement unit, a display coupled to the measurement unit to display an indication of the peak expiratory flow or the forced expiratory volume, and an energy harvester. The energy harvester is coupled to the measurement unit and the processing module, and is configured to receive energy from one of a group consisting of the measurement unit and an energy sensor, store the received energy in an energy storage device, and transfer the energy to the processing module.
    Type: Application
    Filed: January 31, 2015
    Publication date: January 12, 2017
    Applicant: NORTH CAROLINA STATE UNIVERSITY
    Inventors: James P. Dieffenderfer, Mike A. Brown, Leigh M. Johnson, John F. Muth
  • Publication number: 20160151012
    Abstract: Systems and methods for monitoring sleep are disclosed. According to an aspect, a method includes emitting light into tissue. The method also includes detecting light backscattered from the tissue. Further, the method includes determining a sleep pattern based on the backscattered light.
    Type: Application
    Filed: June 29, 2014
    Publication date: June 2, 2016
    Inventors: Alper Bozkurt, James P. Dieffenderfer