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:
Jul. 24, 2001
Filed:
May. 12, 1998
Applicant:
Inventors:
Edgar Velez, Kanata, CA;
Ian Dublin, Ottawa, CA;
Assignee:
Nortel Networks Limited, Montreal, CA;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04L 2/302 ;
U.S. Cl.
CPC ...
H04L 2/302 ;
Abstract
A method of timing recovery convergence monitoring in modems using an average phase error signal. The method involves continuously tracking the peak of the average phase error. The average phase error is compared to a dynamic threshold (i.e. a threshold that can change over time based on changes to the detected peak at a given time). Convergence is declared when the average phase error remains less than the threshold over a given length of time (i.e. after processing a prescribed number of consecutive samples).