Patents by Inventor William Hempstead

William Hempstead 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).

  • Methods, Systems and Computer Program Products for Calculating MetaKG Signals for Regions Having Multiple Sets of Optical Characteristics
    Publication number: 20230346232
    Abstract: Methods for calculating a MetaKG signal are provided. The method including illuminating a region of interest in a sample with a near-infrared (NIR) light source and/or a visible light source. The region of interest includes a sample portion and background portion, each having a different set of optical characteristics. Images of the region of interest are acquired and processed to obtain metadata associated with the acquired images. MetaKG signals are calculated for the region of interest and for the background. The MetaKG signal for the background is used to adjust the MetaKG signal for the region of interest to provide a final adjusted MetaKG signal for the region of interest.
    Type: Application
    Filed: November 30, 2022
    Publication date: November 2, 2023
    Inventors: Thomas Bruce Ferguson, JR., Sunghan Kim, William Hempstead, Cheng Chen
  • Methods, systems and computer program products for calculating MetaKG signals for regions having multiple sets of optical characteristics
    Patent number: 11553844
    Abstract: Methods for calculating a MetaKG signal are provided. The method including illuminating a region of interest in a sample with a near-infrared (NIR) light source and/or a visible light source. The region of interest includes a sample portion and background portion, each having a different set of optical characteristics. Images of the region of interest are acquired and processed to obtain metadata associated with the acquired images. MetaKG signals are calculated for the region of interest and for the background. The MetaKG signal for the background is used to adjust the MetaKG signal for the region of interest to provide a final adjusted MetaKG signal for the region of interest.
    Type: Grant
    Filed: October 5, 2020
    Date of Patent: January 17, 2023
    Assignee: East Carolina University
    Inventors: Thomas Bruce Ferguson, Jr., Sunghan Kim, William Hempstead, Cheng Chen
  • Systems for detecting vascular and arterial disease in asymptomatic patients and related methods
    Patent number: 10948350
    Abstract: Multispectral imaging systems are provided including an illumination control module configured to image a sample and provide an imaging output sequence including images and data; a multi-spectral physiologic visualization (MSPV) module, a peripheral oxygen saturation (SpO2) module and a physiologic status parameters (PSP) module configured to receive the imaging output sequence of the illumination control module simultaneously. The MSPV module is configured to provide real-time blood flow distribution visualization of a field of view (FOV) responsive to the received imaging output sequence. The SpO2 module is configured to provide real-time SpO2 information at a tissue surface level for the FOV responsive to the received imaging and output sequence. The PSP module is configured to derive status parameters in real-time from metadata associated with the received imaging and output sequence of the FOV.
    Type: Grant
    Filed: September 4, 2019
    Date of Patent: March 16, 2021
    Assignee: East Carolina University
    Inventors: T. Bruce Ferguson, Jr., Bryent Tucker, Sunghan Kim, Cheng Chen, William Hempstead
  • Methods, Systems and Computer Program Products for Calculating MetaKG Signals for Regions Having Multiple Sets of Optical Characteristics
    Publication number: 20210030277
    Abstract: Methods for calculating a MetaKG signal are provided. The method including illuminating a region of interest in a sample with a near-infrared (NIR) light source and/or a visible light source. The region of interest includes a sample portion and background portion, each having a different set of optical characteristics. Images of the region of interest are acquired and processed to obtain metadata associated with the acquired images. MetaKG signals are calculated for the region of interest and for the background. The MetaKG signal for the background is used to adjust the MetaKG signal for the region of interest to provide a final adjusted MetaKG signal for the region of interest.
    Type: Application
    Filed: October 5, 2020
    Publication date: February 4, 2021
    Inventors: Thomas Bruce Ferguson, JR., Sunghan Kim, William Hempstead, Cheng Chen
  • Systems for Detecting Vascular and Arterial Disease in Asymptomatic Patients and Related Methods
    Publication number: 20200072670
    Abstract: Multispectral imaging systems are provided including an illumination control module configured to image a sample and provide an imaging output sequence including images and data; a multi-spectral physiologic visualization (MSPV) module, a peripheral oxygen saturation (SpO2) module and a physiologic status parameters (PSP) module configured to receive the imaging output sequence of the illumination control module simultaneously. The MSPV module is configured to provide real-time blood flow distribution visualization of a field of view (FOV) responsive to the received imaging output sequence. The SpO2 module is configured to provide real-time SpO2 information at a tissue surface level for the FOV responsive to the received imaging and output sequence. The PSP module is configured to derive status parameters in real-time from metadata associated with the received imaging and output sequence of the FOV.
    Type: Application
    Filed: September 4, 2019
    Publication date: March 5, 2020
    Inventors: T. Bruce Ferguson, Jr., Bryent Tucker, Sunghan Kim, Cheng Chen, William Hempstead