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:
Aug. 22, 2017
Filed:
Jan. 12, 2016
Applicant:
Nextnav, Llc, Sunnyvale, CA (US);
Inventor:
Norman F. Krasner, Redwood City, CA (US);
Assignee:
NextNav, LLC, Sunnyvale, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04B 1/10 (2006.01); G01S 7/02 (2006.01); G01S 19/21 (2010.01); G01S 5/02 (2010.01); H04B 1/71 (2011.01); H04B 1/7107 (2011.01); H04K 3/00 (2006.01); H03H 17/02 (2006.01);
U.S. Cl.
CPC ...
G01S 7/023 (2013.01); G01S 5/0215 (2013.01); G01S 19/21 (2013.01); H04B 1/7101 (2013.01); H04B 1/7107 (2013.01); H04K 3/90 (2013.01); H03H 17/025 (2013.01);
Abstract
An interference removal filter that includes a combination of a first filter and a second filter, where the first filter passes signals over a frequency range of size B with a variation of less than +/−3 dB, where the peak value of the impulse response of the second filter is displaced in time from the peak value of the impulse response of the first filter by at least 2/B time units, and where the combination of the first filter and the second filter produces a notch in frequency at a frequency location within the frequency range.