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.:

US 9413400 B1

PDF
Full Text
Expired
Date of Patent:
Aug. 09, 2016

Filed:

Apr. 30, 2015
Applicant:

Qualcomm Incorporated, San Diego, CA (US);

Inventors:

Hajir Hedayati, San Diego, CA (US);

Vladimir Aparin, San Diego, CA (US);

Assignee:

QUALCOMM Incorporated, San Diego, CA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04B 1/10 (2006.01); H04L 25/03 (2006.01);
U.S. Cl.
CPC ...
H04B 1/1027 (2013.01); H04L 25/03159 (2013.01); H04B 2001/1072 (2013.01);
Abstract

A method, an apparatus, and system for filtering a signal in a carrier aggregation system are provided. The apparatus processes carriers via at least two respective paths. Each path receives, via a transconducting module, an input signal and generates a current signal based on the input signal, shifts, via a mixing module, a frequency of the current signal by mixing the current signal with a local oscillating signal corresponding to a respective path, and generates, via an amplifying module, an output voltage signal based on the frequency-shifted signal and a response of the respective path. The apparatus attenuates, via a filtering module, a jamming signal in the input signal to produce responses for the at least two paths, respectively. A response for the respective path has a maximum input impedance at a frequency of the local oscillating signal corresponding to the respective path.


Find Patent Forward Citations

Quick Actions:

Hedayati, Hajir. (2016). Blocker filtering for carrier aggregation receiver (U.S. Patent No. 9413400). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/9413400

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Loading…