ALEXANDRIA, Va., Nov. 25 -- United States Patent no. 12,481,017, issued on Nov. 25, was assigned to ALPS ALPINE Co. LTD. (Tokyo).
"Positioning system" was invented by Taiki Igarashi (Miyagi, Japan) and Daisuke Takai (Tokyo).
According to the abstract* released by the U.S. Patent & Trademark Office: "A positioning system includes an elevation angle calculator that determines, as a second elevation angle, an inverse cosine of a first value, upon occurrence of a condition in which an absolute value of a first elevation angle is greater than or equal to a second predetermined angle, the second predetermined angle being greater than a first predetermined angle, the first value being obtained by dividing a second value that is obtained by corre...