US Patent Issued to MITUTOYO on Oct. 14 for "Correction value calculation method, correction value calculation program, correction value calculation apparatus, and encoder" (Japanese Inventor)

ALEXANDRIA, Va., Oct. 21 -- United States Patent no. 12,445,152, issued on Oct. 14, was assigned to MITUTOYO Corp. (Kawasaki, Japan).

"Correction value calculation method, correction value calculation program, correction value calculation apparatus, and encoder" was invented by Tetsuro Kiriyama (Kanagawa, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A correction value calculation method calculates correction values to correct the 2-phase sinusoidal signals (X, Y) output by the encoder, and includes: a polar coordinate calculation step for calculating, for N phase angles and the Lissajous radius corresponding to each phase angle in the Lissajous waveform drawn by the 2-phase sinusoidal signals, a squa...