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:
Jun. 06, 2017
Filed:
Dec. 11, 2014
Khalifa University of Science, Technology, and Research, Abu Dhabi, AE;
British Telecommunications Plc, London, GB;
Emirates Telecommunications Corporation, Abu Dhabi, AE;
James Aweya, Abu Dhabi, AE;
Khalifa University of Science, Technology and Research, Abu Dhabi, AE;
British Telecommunications plc, London, GB;
Emirates Telecommunications Corporation, Abu Dhabi, AE;
Abstract
This invention relates to methods and devices for time transfer. The invention has particular application in the alignment of slave clocks to a master clock and dealing with packet delay variations. In embodiments of the invention, the slave clock uses the residence times measured by end-to-end transparent clocks to compensate for clock synchronization errors that arise due to variability in message transfer delays. Embodiments provide a simple linear approximation technique and a Kalman filter-based technique for estimating offset and skew of the slave clock.