ALEXANDRIA, Va., Feb. 12 -- United States Patent no. 12,222,241, issued on Feb. 11, was assigned to QUDOOR TECHNOLOGIES INC. (Beijing).
"Method and apparatus for extracting avalanche signal" was invented by Liuping Chen (Beijing), Yongsheng Fan (Beijing), Liting Tong (Beijing), Xiangsheng She (Beijing), Nan Li (Beijing), Qibing Wang (Beijing) and Xiangkui Wan (Beijing).
According to the abstract* released by the U.S. Patent & Trademark Office: "The disclosure provides a method and apparatus for extracting an avalanche signal. The method includes: obtaining an avalanche photodiode (APD) signal output by a single-photon detector, wherein the APD signal comprises an upper spike and a lower spike, the upper spike is generated along with a ris...