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. 08, 2003
Filed:
Dec. 05, 2001
Thomas V. DeWulf, Cedar Rapids, IA (US);
Rockwell Collins, Inc., Cedar Rapids, IA (US);
Abstract
A low-cost interference reduction system reduces interfering and jamming signals in a global positioning system receiver for such applications as rotating weapons and hand-held GPS receivers. A pair of antennas having a spin symmetric gain pattern receive global positioning system signals and interfering signals. An antijam electronics function connected to the antennas processes the global positioning system signals and the interfering signals to produce an output signal with reduced interfering signal levels. The global positioning system receiver is connected to the antijam electronics function for processing the global positioning system signals into position solutions and for providing a power detector output and a clock output to the antijam electronics function.