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:
Dec. 28, 2004
Filed:
Sep. 19, 2002
Applicant:
Inventors:
Igor Soutiaguine, Moscow, RU;
Dmitry Tatarnikov, Moscow, RU;
Vladimir Philippov, Moscow, RU;
Anton Stepanenko, Yujnoukrainsk, UA;
Andrey Astahov, Moscow, RU;
Assignee:
Topcon GPS LLC, Pleasanton, CA (US);
Primary Examiner:
Int. Cl.
CPC ...
H01Q 1/38 ;
U.S. Cl.
CPC ...
H01Q 1/38 ;
Abstract
Compact antenna systems for reducing the reception of multipath signals are disclosed. An exemplary antenna system comprises a ground plane, a receiving antenna disposed above the ground plane and providing an output signal of the antenna system, and a passive antenna disposed below the ground plane.