ALEXANDRIA, Va., Nov. 3 -- United States Patent no. 12,782,881, issued on Nov. 3, was assigned to QUDOOR TECHNOLOGIES INC. (Beijing).
"Method and apparatus for measuring time" was invented by Liuping Chen (Beijing), Yongsheng Fan (Beijing), Renqing Fu (Beijing), Guofeng Zhang (Beijing), Xiangkui Wan (Beijing) and Jian Zhang (Beijing).
According to the abstract* released by the U.S. Patent & Trademark Office: "A method and apparatus for measuring time, and a programmable controller for a quantum communication device are provided. The method includes: receiving a START signal and a STOP signal; sampling the START signal and the STOP signal by using a same clock to generate a START bit string corresponding to the START signal and a STOP bit ...