ALEXANDRIA, Va., Sept. 17 -- United States Patent no. 12,417,653, issued on Sept. 16, was assigned to Japan Display Inc. (Tokyo).
"Detection device" was invented by Masahiro Tada (Tokyo).
According to the abstract* released by the U.S. Patent & Trademark Office: "A detection device includes a ring-shaped housing wearable on a living body, a first light source provided inside the housing and configured to emit near-infrared light, an optical sensor capable of detecting the near-infrared light, and a control circuit configured to control lighting of the first light source. The control circuit is configured to measure a perfusion index of blood flow based on image data acquired by the optical sensor when being irradiated with the near-infrar...