ALEXANDRIA, Va., March 3 -- United States Patent no. 12,565,038, issued on March 3, was assigned to SEIKO EPSON Corp. (Japan).
"Drive circuit and liquid ejecting apparatus" was invented by Noritaka Ide (Shiojiri, Japan), Kunio Tabata (Shiojiri, Japan), Dai Nozawa (Matsumoto, Japan), Rika Tanimoto (Matsumoto, Japan) and Satoru Uematsu (Shiojiri, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A drive circuit includes a modulation circuit that outputs a modulation signal, an amplification circuit that outputs a first amplified modulation signal obtained by amplifying the modulation signal, a reference signal generation circuit that generates a reference signal corresponding to the base drive signal, a lev...