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:
Feb. 25, 2014
Filed:
Apr. 23, 2010
Dennis Jeurissen, Graz, AT;
Gerben Willem DE Jong, Veldhoven, NL;
Jan Van Sinderen, Liempde, NL;
Johannes Hubertus Antonius Brekelmans, Nederweert, NL;
Dennis Jeurissen, Graz, AT;
Gerben Willem de Jong, Veldhoven, NL;
Jan van Sinderen, Liempde, NL;
Johannes Hubertus Antonius Brekelmans, Nederweert, NL;
NXP, B.V., Eindhoven, NL;
Abstract
An electronic device comprising a passive harmonic-rejection mixer () and a calibration circuitry (). The passive harmonic rejection mixer has an input () connected to several sub-mixer stages (), and the sub-mixer stages are connected to a summing module () for generating the output (). Each sub-mixing stage comprises a gating module (), an amplifier (), and a weighting module (), the gating module selectively passing the input signal or the input signal with inverted polarity under the control of control signals. The calibration circuitry () is adapted to input a reference signal () to the input of the mixer, receive an output signal () from the output of the mixer, and set the weights (K, K, K, K) of the weighting modules to make the output signal match an expected output signal.