ALEXANDRIA, Va., June 17 -- United States Patent no. 12,313,789, issued on May 27, was assigned to STMICROELECTRONICS INC. (Coppell, Texas).

"Adaptive laser power and ranging limit for time of flight sensor" was invented by Xiaoyong Yang (San Jose, Calif.), Rui Xiao (Cupertino, Calif.) and Arnaud Deleule (Cupertino, Calif.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A time of flight range detection device includes a laser configured to transmit an optical pulse into an image scene, a return single-photon avalanche diode (SPAD) array, a reference SPAD array, a range detection circuit coupled to the return SPAD array and the reference SPAD array, and a laser driver circuit. The range detection circuit in op...