US Patent Issued to CRRC QINGDAO SIFANG on Oct. 20 for "Method and device for testing positioning and speed measuring system main unit" (Chinese Inventors)

ALEXANDRIA, Va., Oct. 21 -- United States Patent no. 12,768,857, issued on Oct. 20, was assigned to CRRC QINGDAO SIFANG Co. LTD. (Qingdao, China).

"Method and device for testing positioning and speed measuring system main unit" was invented by Fengchao Wang (Qingdao, China), Fujie Jiang (Qingdao, China), Xin Miao (Qingdao, China), Jiyu Han (Qingdao, China) and Dongyu Zhao (Qingdao, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method and device for testing a positioning and speed measuring system main unit. The method includes: obtaining a first simulation signal by simulating an absolute position sensor and a relative position sensor; sending the first simulation signal to a main unit of a to-be-te...