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. 06, 2017
Filed:
Aug. 16, 2016
Applicant:
Qualcomm Incorporated, San Diego, CA (US);
Inventors:
Shuja Andrabi, Bangalore, IN;
Rahul Karmaker, Bangalore, IN;
Assignee:
QUALCOMM Inc., San Diego, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02K 5/00 (2006.01); H03H 11/04 (2006.01); H03H 11/12 (2006.01); H04L 27/00 (2006.01);
U.S. Cl.
CPC ...
H03H 11/1217 (2013.01); H03H 2210/017 (2013.01); H03H 2210/025 (2013.01); H03H 2210/028 (2013.01); H04L 27/0002 (2013.01);
Abstract
Certain aspects of the present disclosure provide methods and apparatus for calibrating a tunable active filter. One example apparatus is a filter circuit that generally includes a tunable active filter comprising at least one amplifier and a first feedback path coupled between an input and an output of the at least one amplifier, the first feedback path comprising at least one switch; and an amplitude limiter coupled to the tunable active filter and comprising at least one transistor disposed in a second feedback path coupled between the input and the output of the at least one amplifier.