ALEXANDRIA, Va., July 30 -- United States Patent no. 12,375,091, issued on July 29, was assigned to Cadence Design Systems Inc. (San Jose, Calif.).
"Oscillator amplitude calibration" was invented by Mohammadamin Karami (East Gwillimbury, Canada), Navid Yaghini (Pickering, Canada) and Hemesh Yasotharan (Toronto).
According to the abstract* released by the U.S. Patent & Trademark Office: "Multiple voltage amplitudes for an oscillator in a phase-locked loop may be selected to meet various design goals/criteria (e.g., frequency range of operation, jitter, power consumption, etc.). These multiple voltage amplitudes may be stored in a lookup table memory that relates frequency ranges to reference voltages. A reference voltage for a particular o...