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. 13, 2007
Filed:
Jul. 15, 2004
Hendricus DE Ruijter, Sunnyvale, CA (US);
Gábor Tóth, Budapest, HU;
Péter Onódy, Budapest, HU;
András Hegyi, Székesfehérvár, HU;
Attila Zólomy, Budapest, HU;
Matthijs D. Pardoen, Helystad, NL;
János Erdélyi, Dunakeszi, HU;
Ferenc Mernyei, Budapest, HU;
Hendricus De Ruijter, Sunnyvale, CA (US);
Gábor Tóth, Budapest, HU;
Péter Onódy, Budapest, HU;
András Hegyi, Székesfehérvár, HU;
Attila Zólomy, Budapest, HU;
Matthijs D. Pardoen, Helystad, NL;
János Erdélyi, Dunakeszi, HU;
Ferenc Mernyei, Budapest, HU;
Intergration Associates Inc., Mountain View, CA (US);
Abstract
Disclosed is a circuit and method for automatic tuning of a resonant circuit in a transceiver having a receiver and a transmitter that includes a power amplifier for driving the resonant circuit. During a transmit mode of the transceiver, a resonance voltage of the resonant circuit is compared to an input voltage signal to the power amplifier to determine an error signal that is converted into a control word. The control word drives an adjustable capacitance bank that is part of the resonant circuit. During a receive mode of the transceiver, the control word value is held constant to substantially maintain resonance of the resonant circuit during operation of the receiver.