Clock synchronization between time calibration boards

US10164644B2 · kind B2 · utility

Assignee

• Shenyang Neusoft Medical Systems Co., Ltd. · CN

Inventors

• Peng Ning · Richardson, US
• Long Yang · Shenyang, CN
• Guodong Liang · Shanghai, CN
• Peng Gao · Nanhu, CN
• Liang He · Lo Wu, CN

Key dates

• Filing date: Apr 14, 2017
• Grant date: Dec 25, 2018
• Expiry date: Apr 14, 2037

Classification

• Technology area (CPC G): Physics
• CPC primary: G01T7/005
• WIPO field: Environmental technology
• WIPO sector: Chemistry

Abstract

Methods, devices and computer-readable mediums for clock synchronization are provided. The methods include receiving a synchronizing clock in a unit clock cycle of a measuring clock, calibrating position information of a rising edge of the synchronizing clock in the unit clock cycle, determining a phase difference between the measuring clock and the synchronizing clock in the unit clock cycle based on the calibrated position information, and compensating a photon time in the unit clock cycle with the determined phase difference as a time compensation value.