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:
Aug. 30, 2016
Filed:
May. 31, 2012
Rachid El Waffaoui, Eindhoven, NL;
Christian Weidinger, Graz, AT;
Rachid El Waffaoui, Eindhoven, NL;
Christian Weidinger, Graz, AT;
NXP B.V., Eindhoven, NL;
Abstract
In one embodiment, an RFID apparatus is provided, which includes an input circuit that has an input impedance used for receiving RF signals. An RF-signal converter provides an apparatus-operating power signal in response to receiving the RF signals. An impedance circuit provides and selects impedance values in response to at least one select signal provided by a state-machine logic circuit. The state-machine logic circuit provides the select signal(s) in response to the apparatus-operating power signal for selecting the impedance values and therein permit the input impedance to be changed for tuning the RFID apparatus.