ALEXANDRIA, Va., Oct. 21 -- United States Patent no. 12,443,292, issued on Oct. 14, was assigned to Huawei Technologies'Co.'Ltd.' (Shenzhen, China).
"Input detection apparatus and related input device" was invented by Xiaoke Hou (Dongguan, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "An input detection apparatus: includes at least two first lasers, at least two second lasers, and a processor. Each laser may emit laser light and generate a self-mixing interference signal when the laser light is reflected into a resonant cavity of the laser through a reference plane. The processor may determine a first displacement of the input detection apparatus in the reference plane based on self-mixing interferenc...