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:
Nov. 12, 2019
Filed:
Jul. 20, 2015
Applicant:
Snaptrack, Inc., San Diego, CA (US);
Inventor:
Edgar Schmidhammer, Stein an der Traun, DE;
Assignee:
SnapTrack, Inc., San Diego, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H03H 9/54 (2006.01); H03H 9/56 (2006.01); H03H 9/60 (2006.01); H03H 9/64 (2006.01); H03H 9/00 (2006.01); H03H 9/205 (2006.01); H03H 9/70 (2006.01); H03H 9/72 (2006.01); H03H 9/02 (2006.01);
U.S. Cl.
CPC ...
H03H 9/542 (2013.01); H03H 9/0004 (2013.01); H03H 9/205 (2013.01); H03H 9/568 (2013.01); H03H 9/605 (2013.01); H03H 9/6483 (2013.01); H03H 9/706 (2013.01); H03H 9/725 (2013.01); H03H 2009/02165 (2013.01);
Abstract
The specification relates to an RF filter in which characteristic filter variables have a decreased dependency on tuning. A filter in this case comprises series-interconnected basic elements that each have an electroacoustic resonator and impedance converters interconnected in series between the basic elements.