ALEXANDRIA, Va., April 15 -- United States Patent no. 12,601,583, issued on April 14, was assigned to Apple Inc. (Cupertino, Calif.).
"Multi-channel self-mixing interferometric sensor" was invented by Tong Chen (Fremont, Calif.), Yongkang Gao (Sunnyvale, Calif.), Xiao Xiang (San Jose, Calif.) and David D. Dashevsky (San Jose, Calif.).
According to the abstract* released by the U.S. Patent & Trademark Office: "A multi-channel SMI sensor includes an emitter configured to emit light having different polarizations and a polarization-selective lens for directing light having different polarizations towards different locations. The multi-channel SMI sensor is configured to measure physical phenomena at two different locations with a small footp...