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:
Aug. 09, 2011
Filed:
Nov. 28, 2007
Applicants:
James A. Norris, Fairport, NY (US);
John W. Nieto, Rochester, NY (US);
Inventors:
James A. Norris, Fairport, NY (US);
John W. Nieto, Rochester, NY (US);
Assignee:
Harris Corporation, Melbourne, FL (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04L 27/22 (2006.01);
U.S. Cl.
CPC ...
Abstract
A receiver includes a signal input for receiving a differentially-encoded quadrature phase-shift keyed (DEQPSK) communication signal. A demodulator performs bit decisions on a received coherent symbol and bit decisions on a received differential symbol. A processor is operative with the demodulator and scales a soft decision by a factor from 0 to 1 when the results of the bit decisions on the received coherent branch and differential branch are different.