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:
Jan. 02, 2018
Filed:
Jun. 30, 2014
Applicant:
Qulsar, Inc., San Jose, CA (US);
Inventors:
Kishan Shenoi, Saratoga, CA (US);
Rajendra Nath Datta, San Jose, CA (US);
Assignee:
Qulsar, Inc., San Jose, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04J 3/06 (2006.01); H04L 12/26 (2006.01);
U.S. Cl.
CPC ...
H04J 3/0661 (2013.01); H04J 3/0644 (2013.01); H04J 3/0667 (2013.01); H04J 3/0688 (2013.01); H04L 43/0858 (2013.01); H04L 43/106 (2013.01);
Abstract
A packet network that includes the distribution of timing information (time and frequency) between server and client devices can continue to operate in a holdover mode even when the server loses its primary timing reference based on GNSS. This is achieved by populating the packet network with some client devices that also have access to the same timing reference. These devices are used in a reverse timing transfer mode to provide a hack-up reference to the server and thereby provide a graceful solution to the problem of loss of reference.