US 11,770,200 B2
On-board synchronization device and smart machine
Mingbao Zhang, Beijing (CN); and Pingyuan Ji, Beijing (CN)
Assigned to BEIJING TUSEN ZHITU TECHNOLOGY CO., LTD., Beijing (CN)
Filed by Beijing Tusen Zhitu Technology Co., Ltd., Beijing (CN)
Filed on Nov. 12, 2020, as Appl. No. 17/96,851.
Claims priority of application No. 201921981863.6 (CN), filed on Nov. 14, 2019.
Prior Publication US 2021/0152265 A1, May 20, 2021
Int. Cl. H04J 3/06 (2006.01); G04R 20/04 (2013.01); G01S 19/14 (2010.01); G01S 19/37 (2010.01); G01S 19/25 (2010.01)
CPC H04J 3/065 (2013.01) [G01S 19/14 (2013.01); G01S 19/256 (2013.01); G01S 19/37 (2013.01); G04R 20/04 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An on-board synchronization device, comprising a first circuit and at least one second circuit, wherein
the first circuit is configured to receive an initial signal containing Universal Time Coordinated (UTC), generate a first signal containing the UTC, and output the first signal to at least one on-board device, such that the at least one on-board device synchronizes its built-in clock with the UTC based on the first signal, and
the second circuit is configured to receive a Pulse Per Second (PPS) signal, generate a periodic second signal with a same phase as the PPS signal, and output the second signal or the PPS signal to the at least one on-board device, such that the at least one on-board device performs a predetermined action based on the second signal or the PPS signal,
wherein the second circuit comprises a second signal generating and processing module, and a pulse signal one-out-of-two selection module,
wherein the second signal generating and processing module is configured to generate a second signal based on the PPS signal, generate a signal source switching control signal, and output the second signal and the signal source switching control signal to the pulse signal one-out-of-two selection module, and
wherein the pulse signal one-out-of-two selection module is configured to output the PPS signal or the second signal in accordance with the signal source switching control signal.