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:
Mar. 23, 2004
Filed:
May. 02, 2001
Franz Amtmann, Graz, AT;
Thomas Burger, Graz, AT;
Koninklijke Philips Electronics N.V., Eindhoven, NL;
Abstract
A data carrier ( ) for contactless communication with a communication station has a substrate ( ) and a communication resonant circuit ( ) connected to the substrate ( ) and consisting of a communication coil ( ) and of a capacitor configuration ( ) and having a resonant frequency (f ) which should have a nominal value, changing unit ( ) for changing the resonant frequency (f ) being provided, which changing unit enable the resonant frequency (f ) to be changed from an initial value both to higher frequency values and to lower frequency values.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile