US 12,328,184 B2
Multi-source signal synchronization system and method
Jiabao Zhang, Guangdong (CN); Chengying Wei, Guangdong (CN); Zhijian Huang, Guangdong (CN); Huadong Li, Guangdong (CN); and Guangping Dong, Guangdong (CN)
Assigned to SHENZHEN NOVOCARE MEDICAL TECHNOLOGY CO., LTD, Shenzhen (CN)
Appl. No. 18/220,012
Filed by SHENZHEN NOVOCARE MEDICAL TECHNOLOGY CO., LTD, Guangdong (CN)
PCT Filed Aug. 29, 2021, PCT No. PCT/CN2021/115188
§ 371(c)(1), (2) Date Jul. 1, 2024,
PCT Pub. No. WO2022/148025, PCT Pub. Date Jul. 14, 2022.
Claims priority of application No. 202110030703.9 (CN), filed on Jan. 11, 2021.
Prior Publication US 2025/0112718 A1, Apr. 3, 2025
Int. Cl. H04J 3/06 (2006.01); H04W 56/00 (2009.01)
CPC H04J 3/0661 (2013.01) [H04J 3/0644 (2013.01); H04W 56/001 (2013.01)] 11 Claims
OG exemplary drawing
 
1. A multi-source signal synchronization system, applied to a plurality of signal sources with different collection clock frequencies, and comprising:
a timing beacon sending unit, deployed in a master machine signal source to generate RTC timing beacons at a fixed time interval T, and send the RTC timing beacons as synchronization marks to slave machine signal sources through a predetermined communication channel;
a timing beacon receiving unit, deployed in each slave machine signal source to be enabled at a moment (T-t1) after receiving a previous RTC timing beacon so as to be in a state for waiting to receive a next RTC timing beacon from the timing beacon sending unit, and disabled after receiving the next RTC timing beacon;
a multi-signal collecting unit, deployed on one of the multiple signal sources to collect a plurality of collected signals containing the synchronization marks from each signal source; and,
a signal synchronization processing unit, configured to align signal headers based on a same synchronization mark of the multiple signals, and select a length of one of the collected multiple signals as a reference length to perform stretch or squeeze on other signals such that the multiple signals have a same length under the same synchronization mark.