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. 13, 2018
Filed:
Jul. 27, 2015
Applicant:
Qualcomm Incorporated, San Diego, CA (US);
Inventors:
Assignee:
QUALCOMM Incorporated, San Diego, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03H 7/01 (2006.01); H01F 38/14 (2006.01); H03F 3/191 (2006.01); H03F 3/195 (2006.01); H03H 11/52 (2006.01);
U.S. Cl.
CPC ...
H03H 7/0115 (2013.01); H01F 38/14 (2013.01); H03F 3/191 (2013.01); H03F 3/195 (2013.01); H03H 7/0153 (2013.01); H01F 2038/146 (2013.01); H03H 11/52 (2013.01); H03H 2007/013 (2013.01);
Abstract
A notch filter including an inductor-capacitor tuning circuit is disclosed. The inductor-capacitor tuning circuit may determine a frequency response of the notch filter in accordance with an associated resonant frequency. In some exemplary embodiments, the inductor-capacitor circuit may include a differential inductor divided at a symmetry point and a variable capacitor coupled to the differential inductor at the symmetry point.