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:
Feb. 01, 2005
Filed:
Feb. 11, 2003
Applicants:
Johannes Ilg, Regensberg, DE;
Franz Waltl, Saal, DE;
Inventors:
Johannes Ilg, Regensberg, DE;
Franz Waltl, Saal, DE;
Assignee:
Siemens Aktiengesellschaft, Munich, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01Q 302 ; H01Q 324 ;
U.S. Cl.
CPC ...
Abstract
A circuit for the selective activation of a plurality of antennas (Lto L) from a common end stage () contains a first selector switch () at a terminal () of the end stage (), the switch contacts () of which are each connected to a switch contact () and via an antenna (L, L) each to one fixed contact each of a twin selector switch (). The fixed contacts of the twin selector switch are each connected via a further antenna (L, L) to the other terminal () of the end stage and these are also connected to the other switch contacts () of the twin selector switch.