ALEXANDRIA, Va., March 24 -- United States Patent no. 12,587,191, issued on March 24, was assigned to Cirrus Logic Inc. (Austin, Texas).
"Multichannel driver circuitry and operation" was invented by Ross C. Morgan (Edinburgh, Great Britain), Joe Walker (Edinburgh, Great Britain), Yongjie Cheng (Austin, Texas) and Lingli Zhang (Austin, Texas).
According to the abstract* released by the U.S. Patent & Trademark Office: "This application relates to methods and apparatus for multichannel drivers for driving transducers in different channels. A multichannel driver has a plurality of output stages configured such that two output nodes can be modulated between selected switching voltages with a controlled duty cycle to generate a differential out...