ALEXANDRIA, Va., Jan. 29 -- United States Patent no. 12,212,915, issued on Jan. 28, was assigned to Huawei Technologies'Co.'Ltd.' (Shenzhen, China).
"Haptic sensing device, electronic device, earphone, and watch" was invented by Stephen Lingfeng Wang (Cambridge, Great Britain), Hongbin Liu (London), Jian Hu (London), Federica De Chiara (London) and Gang Ni (Nanjing, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "A haptic sensing device, including a light source, an optical waveguide, a photoelectric sensor, and a housing. The optical waveguide includes a waveguide layer and a cladding, the cladding encloses the waveguide layer, and a refractive index of the waveguide layer is greater than a refractive ...