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:
Mar. 10, 2015
Filed:
Jan. 17, 2013
Applicant:
Harris Corporation, Melbourne, FL (US);
Inventor:
Daniel Boritzki, Palm Bay, FL (US);
Assignee:
Harris Corporation, Melbourne, FL (US);
Primary Examiner:
Int. Cl.
CPC ...
H04L 27/06 (2006.01); H04L 7/00 (2006.01);
U.S. Cl.
CPC ...
H04L 7/0079 (2013.01);
Abstract
A communications device includes an input that receives a communications signal having in-phase (I) and Quadrature (Q) signal components. A bit synchronization circuit detects the symbol timing error in the communications signal and includes a symbol mapper circuit configured to receive I and Q signal components and determine transition samples of vectors within the signal constellation. A rotation generator circuit is coupled to the symbol mapper circuit and configured to rotate the trajectory of the transition samples at their midpoints to determine the symbol timing error.