ALEXANDRIA, Va., March 19 -- United States Patent no. 12,255,597, issued on March 18, was assigned to Fujikura Ltd. (Tokyo).
"Digital phase shift circuit and digital phase shifter" was invented by Yusuke Uemichi (Sakura, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A digital phase shift circuit includes: a basic phase shift circuit including a signal line, a pair of inner lines provided on both sides of the signal line, a pair of outer lines provided outside of the inner lines, a first grounding conductor connected to one ends of the pair of inner lines and the pair of outer lines, a second grounding conductor connected to the other ends of the pair of outer lines, and a pair of electronic switches p...