ALEXANDRIA, Va., March 19 -- United States Patent no. 12,255,586, issued on March 18, was assigned to QUALCOMM Inc. (San Diego).
"Oscillator feedthrough calibration" was invented by Mohamed Abouzied (La Jolla, Calif.), Chuan Wang (San Diego), Anosh Davierwalla (San Diego), Muhammad Hassan (San Diego), Vinod Panikkath (San Diego) and Li Liu (San Diego).
According to the abstract* released by the U.S. Patent & Trademark Office: "An apparatus is disclosed for oscillator feedthrough calibration, such as a component arrangement that can be calibrated to account for signal leakage from an oscillator coupled to a mixer circuit. In example aspects, the apparatus includes a mixer circuit having a first stage, a second stage, and tuning circuitry. ...