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:
Oct. 04, 2011
Filed:
Jan. 15, 2008
Alyosha Molnar, Ithaca, NY (US);
Morten Damgaard, Laguna Hills, CA (US);
Geoff Hatcher, Irvine, CA (US);
Kenneth Chai-en Wu, Irvine, CA (US);
Alyosha Molnar, Ithaca, NY (US);
Morten Damgaard, Laguna Hills, CA (US);
Geoff Hatcher, Irvine, CA (US);
Kenneth Chai-en Wu, Irvine, CA (US);
Axiom Microdevices, Inc., Woburn, MA (US);
Abstract
A system for correcting a second order intermodulation product in a direct conversion receiver is provided. The system includes a cross-covariance system receiving a data signal and a second order intermodulation estimate signal and generating a cross-covariance value. An auto-covariance system receives the second order intermodulation estimate signal and generates an auto covariance value. A buffer system stores a second order intermodulation product correction factor. A divider receives the cross-covariance value, the auto-covariance value and the second order intermodulation product correction factor and generates a running average second order intermodulation product correction factor.