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:
Jul. 01, 2014
Filed:
Aug. 16, 2012
Roberto Rimini, San Diego, CA (US);
Peter D. Heldmann, Encinitas, CA (US);
Prasad S. Gudem, San Diego, CA (US);
Sumit Verma, San Diego, CA (US);
Joseph Burke, San Diego, CA (US);
Roberto Rimini, San Diego, CA (US);
Peter D. Heldmann, Encinitas, CA (US);
Prasad S. Gudem, San Diego, CA (US);
Sumit Verma, San Diego, CA (US);
Joseph Burke, San Diego, CA (US);
QUALCOMM Incorporated, San Diego, CA (US);
Abstract
Certain aspects of the present disclosure propose an adaptive joint linear and non-linear digital filter that can adaptively estimate and reconstruct cascaded effects of linear and non-linear self-jamming distortions introduced by non-linearities in the transmit and/or receive chains. The proposed digital filter may be used to cancel second-order inter-modulation distortion (IM2) generated in the receive chain and/or harmonic distortion generated in the transmit chain, as well as other distortions introduced by the transmit/and or receive chains.