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:
Sep. 26, 2017
Filed:
Jul. 29, 2015
Applicant:
Kumu Networks, Inc., Sunnyvale, CA (US);
Inventors:
Dinesh Bharadia, Sunnyvale, CA (US);
Jeffrey Mehlman, Sunnyvale, CA (US);
Wilhelm Steffen Hahn, Sunnyvale, CA (US);
Assignee:
Kumu Networks, Inc., Sunnyvale, CA (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H04B 15/00 (2006.01); H04B 1/525 (2015.01); H04L 5/14 (2006.01);
U.S. Cl.
CPC ...
H04B 15/00 (2013.01); H04B 1/525 (2013.01); H04L 5/1461 (2013.01);
Abstract
A system for frequency-isolated self-interference cancellation includes a transmit coupler, that samples an RF transmit signal to create a sampled RF transmit signal having a first RF carrier frequency, an RF self-interference canceller that transforms the sampled RF transmit signal to an RF self-interference cancellation signal, a receive coupler, that combines the RF self-interference cancellation signal with an RF receive signal to form a reduced-interference receive signal, and a frequency shifter.