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:
Apr. 17, 2018
Filed:
Dec. 11, 2013
Applicant:
Snaptrack Inc., San Diego, CA (US);
Inventors:
Juha Ellae, Halikko, FI;
Edgar Schmidhammer, Stein An der Traun, DE;
Assignee:
SnapTrack, Inc., San Diego, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04L 5/00 (2006.01); H04B 1/00 (2006.01); H04B 1/52 (2015.01); H04L 5/14 (2006.01);
U.S. Cl.
CPC ...
H04B 1/0057 (2013.01); H04B 1/52 (2013.01); H04L 5/14 (2013.01);
Abstract
The present invention concerns a front end circuit () which comprising a first tunable duplexer () comprising a first tunable RX bandpass filter () and a first tunable TX bandpass filter (), wherein the first tunable duplexer () is configured to support a first FDD mode in a first FDD frequency band and a first TDD mode in a first TDD frequency band. Furthermore, the present invention concerns a method of operating the front end circuit.