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:
May. 21, 2002
Filed:
Sep. 01, 2000
Applicant:
Inventors:
Peter Gold, Sinzing, DE;
Michael Stippler, Schwandorf, DE;
Assignee:
Siemens Aktiengesellschaft, , DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01Q 1/32 ;
U.S. Cl.
CPC ...
H01Q 1/32 ;
Abstract
An antenna system, especially for an anti-theft system of a motor vehicle. A primary magnetic field is produced by a primary coil ( ). In the vicinity of the primary coil ( ), a coupling coil ( ) is disposed which is connected by a flexible conductor ( ) with a secondary coil ( ). By the magnetic connection of the primary field a secondary field can be produced through the secondary coil ( ), which due to the distributed installation of the secondary coils ( ) can act specifically in areas in which the primary field is not acting.