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.

Date of Patent:
Feb. 23, 2016

Filed:

Dec. 09, 2013
Applicants:

Khalifa University of Science, Technology, and Research, Abu Dhabi, AE;

British Telecommunications Plc, London, GB;

Emirates Telecommunications Corporation, Abu Dhabi, AE;

Inventors:

Zdenek Chaloupka, Abu Dhabi, AE;

James Aweya, Abu Dhabi, AE;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04J 3/06 (2006.01); H04L 12/841 (2013.01); H04L 29/06 (2006.01); H04L 12/70 (2013.01); H04J 3/14 (2006.01);
U.S. Cl.
CPC ...
H04L 47/283 (2013.01); H04J 3/0602 (2013.01); H04J 3/0638 (2013.01); H04J 3/0661 (2013.01); H04L 69/28 (2013.01); H04J 3/0667 (2013.01); H04J 3/14 (2013.01); H04L 2012/5674 (2013.01);
Abstract

This invention relates to packet selection techniques that can be used in conjunction with a clock recovery mechanism to mitigate the effects of packet delay variation on timing messages exchanged over a packet network, particularly when seeking to synchronize the time of a clock in a slave device to that of a master clock. The packet selection techniques can assist in reducing the noise in the recovered clock signal at the slave device, allowing recovery to a higher quality. Embodiments of the invention provide techniques based on extracting timing packets that create a constant interval between the arrival of selected packets at the slave device and on extracting timing packets which are closest to making the interval between arrival of the selected packets equal to the interval between the departure of the packets.


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