The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 24, 2024
Filed:
Oct. 29, 2019
Innovation Academy for Microsatellites of Cas, Shanghai, CN;
Shanghai Engineering Center for Microsatellites, Shanghai, CN;
Baojun Lin, Shanghai, CN;
Wenbin Gong, Shanghai, CN;
Xinying Lu, Shanghai, CN;
Yuan Shen, Shanghai, CN;
Tingting Chen, Shanghai, CN;
Qianyi Ren, Shanghai, CN;
Yongshan Dai, Shanghai, CN;
Zhiyang Yu, Shanghai, CN;
Guang Li, Shanghai, CN;
Xia Hong, Shanghai, CN;
Xiaoli Tian, Shanghai, CN;
INNOVATION ACADEMY FOR MICROSATELLITES OF CAS, Shanghai, CN;
SHANGHAI ENGINEERING CENTER FOR MICROSATELLITES, Shanghai, CN;
Abstract
A navigation satellite time system and its autonomous recovery method are provided, including a load time system, the load time system is configured to generate and maintain the load time, and the load time system comprises an space borne atomic clock, a time-frequency processing unit and a plurality of load time backups module, the time information of the load time is obtained from the ground station time; the pulse-per-second signals of the load time are generated and maintained by the space borne atomic clock and the time-frequency processing unit; when the time-frequency processing unit fails, the first-level recovery state is triggered: the time-frequency processing unit compares the time information and the pulse-per-second signals reversely output by the multiple load time backup modules to perform load time recovery.