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. 03, 2007
Filed:
May. 14, 2003
Applicants:
Eric O. Zuber, South Amana, IA (US);
Terry J. Golubiewski, Marengo, IA (US);
Inventors:
Eric O. Zuber, South Amana, IA (US);
Terry J. Golubiewski, Marengo, IA (US);
Assignee:
Rockwell Collins, Inc., Ceder Rapids, IA (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H04B 1/69 (2006.01);
U.S. Cl.
CPC ...
Abstract
A method of demodulating a frequency hopped waveform is disclosed. The method comprises receiving an analog radio frequency signal, converting the analog signal to a digital pulse signal, and determining the I and Q bits in the digital pulse signal. The method also comprises derotating the Q bits by a ninety (90) degree phase shift. The method further comprises deriving an approximate phase angle for the pulse from the I and derotated Q bits.