ALEXANDRIA, Va., July 3 -- United States Patent no. 12,345,553, issued on July 1, was assigned to Mitsubishi Electric Corp. (Tokyo).
"Angle detection device" was invented by Akira Furukawa (Tokyo) and Tatsuya Mori (Tokyo).
According to the abstract* released by the U.S. Patent & Trademark Office: "There has been a problem that a rotation second-order angle error due to a phase difference between a sine signal and a cosine signal deviating from Pi/2 cannot be reduced. Therefore, provided is an angle detection device that can suppress a second-order angle error caused due to the phase difference between a first sine signal and a second sine signal deviating from Pi/2, by calculating a detection angle from a first detection signal based on t...