ALEXANDRIA, Va., June 5 -- United States Patent no. 12,276,687, issued on April 15, was assigned to Cirrus Logic Inc. (Austin, Texas).
"Methods and systems for estimating coil impedance of an electromagnetic transducer" was invented by Emmanuel Marchais (Dripping Springs, Texas) and Jon Hendrix (Wimberley, Texas).
According to the abstract* released by the U.S. Patent & Trademark Office: "A method may include selecting, based on a condition of an electromagnetic load, a selected measurement technique from a plurality of impedance measurement techniques for measuring an impedance of the electromagnetic load and performing the selected measurement technique to generate an estimate of the impedance of the electromagnetic load."
The patent w...