ALEXANDRIA, Va., June 4 -- United States Patent no. 12,323,055, issued on June 3, was assigned to Cirrus Logic Inc. (Austin, Texas).
"Driver circuitry and operation" was invented by Yongjie Cheng (Austin, Texas), Lingli Zhang (Austin, Texas), John L. Melanson (Austin, Texas), Thomas H. Hoff (Austin, Texas), Eric J. King (Austin, Texas) and Zhaohui He (Austin, Texas).
According to the abstract* released by the U.S. Patent & Trademark Office: "This application relates to methods and apparatus for driving a transducer. A transducer driver has a switch network that is operable to selectively connect a driver output to any of a first set of at least three different switching voltages which are, in use, maintained throughout a switching cycle o...