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:
Sep. 26, 2006
Filed:
May. 06, 2005
Applicant:
Bruno Charrat, Aix en Provence, FR;
Inventor:
Bruno Charrat, Aix en Provence, FR;
Assignee:
Inside Contactless, Aix-en-Provence Cedex, unknown;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01Q 9/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
An antenna circuit tunable to a determined resonance frequency, includes an antenna coil and adjustable components. The antenna circuit includes a filter having at least one point to tap an electric voltage the amplitude of which forms a pertinent indication for the tuning of the antenna circuit. To tune the antenna circuit, the adjustable components of the antenna circuit are adjusted so that the electric voltage has a determined amplitude.