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. 04, 2017
Filed:
Mar. 07, 2013
Applicant:
Blackberry Limited, Waterloo, CA;
Inventors:
Keith R Manssen, Bull Valley, IL (US);
Matthew R Greene, Crystal Lake, IL (US);
Wayne E Smith, Crystal Lake, IL (US);
Guillaume Blin, Malden, MA (US);
Assignee:
BLACKBERRY LIMITED, Waterloo, Ontario, CA;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H04B 1/04 (2006.01); H01Q 11/12 (2006.01); H03H 7/40 (2006.01); H01Q 1/24 (2006.01); H03H 7/38 (2006.01); H03G 3/30 (2006.01);
U.S. Cl.
CPC ...
H03H 7/40 (2013.01); H01Q 1/242 (2013.01); H04B 1/0458 (2013.01); H03G 3/3042 (2013.01); H03H 2007/386 (2013.01);
Abstract
An embodiment of the present invention provides a method for limiting tuning of a matching network having variable reactive elements coupled to a variable load impedance to at least reduce an undesirable effect caused by an RF signal. Other embodiments are disclosed.