Patents by Inventor Somchai Baotong

Somchai Baotong 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).

  • Patent number: 11944416
    Abstract: Disclosed is a photoplethysmography (PPG) apparatus (100) for determining physiological changes, comprising: a light source to emit alight signal having a variable intensity dependent on a skin characteristic; first and second photodetectors (130) operable to detect a reflection of the light signal to provide a combined current signal; and a signal processing circuit operable to convert the current signal into a PPG signal for determining the physiological changes.
    Type: Grant
    Filed: July 26, 2018
    Date of Patent: April 2, 2024
    Assignee: Nitto Denko Corporation
    Inventors: Estanislao Glenn Bondice, Suppasit Chuwatsawat, Wiputpong Klinsukon, Somchai Baotong, Visit Thaveeprungsriporn
  • Patent number: 11452458
    Abstract: A method (200) of deriving systolic blood pressure and/or diastolic blood pressure of a subject is disclosed. The method comprises: (i) receiving (202) data related to at least one cardiac cycle of a bio-signal from the subject; (ii) calculating (208) a rise time and a fall time of the at least one cardiac cycle based on the received data; (iii) calculating (208) a parameter derived from a function of the rise time and fail time; and (iv) determining (210) the systolic blood pressure and/or diastolic blood pressure of the subject based on the calculated parameter. A related apparatus is also disclosed.
    Type: Grant
    Filed: April 1, 2016
    Date of Patent: September 27, 2022
    Inventors: Visit Thaveeprungsriporn, Somchai Baotong, Srisuda Aphaipanan, Amornsri Khitwongwattana
  • Publication number: 20200329986
    Abstract: Disclosed is a photoplethysmography (PPG) apparatus (100) for determining physiological changes, comprising: a light source to emit alight signal having a variable intensity dependent on a skin characteristic; first and second photodetectors (130) operable to detect a reflection of the light signal to provide a combined current signal; and a signal processing circuit operable to convert the current signal into a PPG signal for determining the physiological changes.
    Type: Application
    Filed: July 26, 2018
    Publication date: October 22, 2020
    Applicant: Nitto Denko Corporation
    Inventors: Estanislao Glenn Bondice, Suppasit Chuwatsawat, Wiputpong Klinsukon, Somchai Baotong, Visit Thaveeprungsriporn
  • Publication number: 20190110702
    Abstract: A method (200) of deriving systolic blood pressure and/or diastolic blood pressure of a subject is disclosed. The method comprises: (i) receiving (202) data related to at least one cardiac cycle of a bio-signal from the subject; (ii) calculating (208) a rise time and a fall time of the at least one cardiac cycle based on the received data; (iii) calculating (208) a parameter derived from a function of the rise time and fail time; and (iv) determining (210) the systolic blood pressure and/or diastolic blood pressure of the subject based on the calculated parameter. A related apparatus is also disclosed.
    Type: Application
    Filed: April 1, 2016
    Publication date: April 18, 2019
    Applicant: Nitto Denko Corporation
    Inventors: Visit Thaveeprungsriporn, Somchai Baotong, Srisuda Aphaipanan, Amornsri Khitwongwattana