ALEXANDRIA, Va., June 4 -- United States Patent no. 12,323,123, issued on June 3, was assigned to MITSUBISHI ELECTRIC Corp. (Tokyo).
"Phase shifter comprising selectable first and second all-pass filters, where the all-pass filters include capacitors and inductors of determined values to achieve impedance matching" was invented by Kei Fukunaga (Tokyo), Masatake Hangai (Tokyo), Ryota Komaru (Tokyo), Yoshifumi Kawamura (Tokyo) and Shintaro Shinjo (Tokyo).
According to the abstract* released by the U.S. Patent & Trademark Office: "A phase shifter includes: a first all-pass filter; a second all-pass filter; a first switching switch to provide a signal to either one of the first all-pass filter and the second all-pass filter; and a second swit...