ALEXANDRIA, Va., April 15 -- United States Patent no. 12,602,104, issued on April 14, was assigned to Sony Interactive Entertainment Inc. (Tokyo).
"Input device" was invented by Takanori Minamino (Kanagawa, Japan), Kenzo Nishikawa (Tokyo), Takeshi Igarashi (Kanagawa, Japan) and Yoshiaki Kawamura (Chiba, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "Two light-emitting units are to be prevented from overlapping each other in an image obtained through a camera. A tracked unit (30) has a first outer surface (A1) provided with a first light-emitting unit (H1), a second outer surface (A2) provided with a second light-emitting unit (H2), and a light shield portion (B). The second outer surface (A2) faces a s...