ALEXANDRIA, Va., June 2 -- United States Patent no. 12,647,143, issued on June 2, was assigned to Apple Inc. (Cupertino, Calif.).
"Distributed-element filter for mmWave frequencies" was invented by Xiaofang Mu (San Jose, Calif.), Bo Zhang (San Jose, Calif.), Mingjuan Zhu (Saratoga, Calif.), Chi V. Pham (San Jose, Calif.), Berke Cetinoneri (Palo Alto, Calif.) and Timothy B. Ogilvie (San Jose, Calif.).
According to the abstract* released by the U.S. Patent & Trademark Office: "Frequency-filtering circuitry is disclosed that rejects power of a wireless signal having an undesired frequency while causing a decreased power loss to a wireless signal having a desired frequency using distributed elements, rather than lumped elements. The frequency...