ALEXANDRIA, Va., Nov. 11 -- United States Patent no. 12,465,223, issued on Nov. 11, was assigned to SHENZHEN GOODIX TECHNOLOGY Co. LTD. (Shenzhen, China).
"Dual-altitude-based non-invasive blood pressure monitoring" was invented by Yi He (San Diego) and Bo Pi (San Diego).
According to the abstract* released by the U.S. Patent & Trademark Office: "Techniques are described for non-invasive, dual-altitude-based measurement of blood pressure of a user using a portable electronic device having a sensor head. Illumination is projected into a body part and received by photodetectors. A changing amount of illumination received by the photodetectors changes corresponds to a changing amount of blood volume in elastic circulatory system pathways in ...