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:
Jun. 24, 2014
Filed:
Jul. 09, 2012
Yiching Chen, San Jose, CA (US);
Shih-chieh Yen, Hsinchu, TW;
Yiching Chen, San Jose, CA (US);
Shih-Chieh Yen, Hsinchu, TW;
MStar Semiconductor, Inc., Hsinchu Hsien, TW;
Abstract
A direct conversion receiver including a mixer, a measuring module and a calibration module is provided. When the calibration module adjusts the switch duty cycle of the mixer to being shorter than a standard duty cycle, a first second-order inter-modulation distortion is measured. When the calibration module adjusts the switch duty cycle to being longer than the standard duty cycle, a second second-order inter-modulation distortion is measured. According to the measured distortions, the calibration module determines a calibration signal and provides the calibration signal to the mixer, so as to allow the mixer to have a calibrated duty cycle.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile