ALEXANDRIA, Va., July 28 -- United States Patent no. 12,690,844, issued on July 28, was assigned to Canon K.K. (Tokyo).

"Ultrasound diagnosis apparatus and ultrasound signal generating method" was invented by Ryosuke Iwasaki (Otawara, Japan), Hiroki Takahashi (Nasushiobara, Japan), Tomohisa Imamura (Otawara, Japan), Ting Xia (Vernon Hills, Ill.), Liang Cai (Vernon Hills, Ill.), Jian Zhou (Vernon Hills, Ill.) and Zhou Yu (Vernon Hills, Ill.).

According to the abstract* released by the U.S. Patent & Trademark Office: "An ultrasound diagnosis apparatus according to an embodiment includes processing circuitry. This processing circuitry collects a first ultrasound signal including one or more harmonic components. By executing weighed addition ...