ALEXANDRIA, Va., July 14 -- United States Patent no. 12,678,665, issued on July 14.
"Fitness equipment structure with external-rotor motor" was invented by Chih-Yung Hsu (Tainan City, Taiwan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A fitness equipment structure with an external-rotor motor includes: a force application unit fixed on a basic frame; a motor with an external rotor rotatably provided on the basic frame and surrounding an internal stator; an encoding disk that can rotate along with the external rotor; an encoding unit for reading rotation information provided by the encoding disk; and a control unit for receiving the rotation information and controlling an electromagnetic field of the inter...