公开(公告)号：US20240411273A1

公开(公告)日：2024-12-12

申请号：US18701547

申请日：2022-08-30

Applicant: QUDOOR TECHNOLOGIES INC.

Inventor： Liuping CHEN ,  Yongsheng FAN ,  Renqing FU ,  Guofeng ZHANG ,  Xiangkui WAN ,  Jian ZHANG

IPC: G04F10/00 ,  H04B10/70

Abstract: 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 string corresponding to the STOP signal; extracting a rising edge of the START signal from the START bit string, and extracting a rising edge of the STOP signal from the STOP bit string; and determining a time interval between the START signal and the STOP signal based on a count of bits between the rising edge of the START signal and the rising edge of the STOP signal and based on a period of the clock.