ALEXANDRIA, Va., June 2 -- United States Patent no. 12,646,351, issued on June 2, was assigned to PixArt Imaging Inc. (Hsin-Chu County, Taiwan).
"Human falling detection employing thermal sensor and image sensor" was invented by Feng-Chi Liu (Hsin-Chu County, Taiwan) and Nien-Tse Chen (Hsin-Chu County, Taiwan).
According to the abstract* released by the U.S. Patent & Trademark Office: "There is provided a human falling detection system including an image sensor, a thermal sensor and a microphone. The image sensor captures an image frame that is used to identify a face and a height-width ratio of a human image. The thermal sensor is used as a filter for filtering out a living body and captures a thermal image that is used to identify a hei...