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:
Mar. 10, 2015
Filed:
Mar. 23, 2012
Applicants:
Neil Birkett, Manotick, CA;
Vajira Samarasooriya, Ottawa, CA;
Jung Yee, Ottawa, CA;
Inventors:
Assignee:
Wi-LAN, Inc., Ottawa, CA;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04N 5/50 (2006.01);
U.S. Cl.
CPC ...
Abstract
A radio frequency front end for a television band receiver and spectrum sensor includes a low noise amplifier that amplifies a received signal output of a radio frequency antenna connected to the radio frequency front end, a pin diode attenuator circuit that selectively attenuates an output of the low noise amplifier, and a buffer amplifier that amplifies an output of the pin diode attenuator.