ALEXANDRIA, Va., Sept. 30 -- United States Patent no. 12,432,040, issued on Sept. 30, was assigned to Litrinium Inc. (Aliso Viejo, Calif.).
"PAM4 threshold phase engine" was invented by Bertrand Misischi (Vallauris, France).
According to the abstract* released by the U.S. Patent & Trademark Office: "A method of reducing bit error rate in a PAM4 clock data recovery circuit is described. The method includes determining a first target value of a slicing level, sweeping down from an upper voltage threshold to determine a first reference voltage value, and detecting a first filtered analog output associated with the first reference voltage value. The method also includes sweeping up from a lower voltage threshold to determine a second referenc...