Patents by Inventor Thet Khine Cho

Thet Khine Cho 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).

  • Photoplethysmographic device and methods therefore
    Patent number: 9072439
    Abstract: An optical measurement device and a method for optical measurement are provided. The device comprises an illumination assembly configured to output light to a surface portion of a user for measurement; a detection assembly configured to detect the output light reflected from said surface portion of the user as a signal; an amplifier module coupled to the detection assembly configured to apply a gain to an AC component of the signal; a microcontroller coupled to the detection assembly configured to assess a DC voltage level of the signal; wherein the microcontroller is configured to control the light output at the illumination assembly based on said assessing the DC voltage level; and further wherein the microcontroller is configured to select a gain value for said applying the gain based on said assessing the DC voltage level. Specific embodiments of the device relate to a photoplethysmograph or pulse oximeter.
    Type: Grant
    Filed: January 5, 2012
    Date of Patent: July 7, 2015
    Assignee: Nitto Denko Corporation
    Inventors: Md. Irwan bin Md. Kassim, Mohamad Sulhede Bin Samsudin, Thet Khine Cho
  • PHOTOPLETHYSMOGRAPHIC DEVICE AND METHODS THEREFORE
    Publication number: 20130296665
    Abstract: An optical measurement device and a method for optical measurement are provided. The device comprises an illumination assembly configured to output light to a surface portion of a user for measurement; a detection assembly configured to detect the output light reflected from said surface portion of the user as a signal; an amplifier module coupled to the detection assembly configured to apply a gain to an AC component of the signal; a microcontroller coupled to the detection assembly configured to assess a DC voltage level of the signal; wherein the microcontroller is configured to control the light output at the illumination assembly based on said assessing the DC voltage level; and further wherein the microcontroller is configured to select a gain value for said applying the gain based on said assessing the DC voltage level. Specific embodiments of the device relate to a photoplethysmograph or pulse oximeter.
    Type: Application
    Filed: January 5, 2012
    Publication date: November 7, 2013
    Applicant: Nitto Denko Corporation
    Inventors: Md. Irwan bin Md. Kassim, Mohamad Sulhede Bin Samsudin, Thet Khine Cho