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:
May. 02, 2017
Filed:
Sep. 08, 2015
Amazon Technologies, Inc., Seattle, WA (US);
In Chul Hyun, San Jose, CA (US);
Sembhayya Gollakota, Sunnyvale, CA (US);
Morris Hsu, Santa Clara, CA (US);
Cheol Su Kim, San Jose, CA (US);
AMAZON TECHNOLOGIES, INC., Seattle, WA (US);
Abstract
Antenna structures and methods of operating the same are described. One apparatus includes a processing device that executes an active interference cancellation (AIC) algorithm and radio frequency front-end (RFFE) circuitry coupled to the processing device. The RFFE circuitry includes two RF couplers, and a programmable-delay filter and a vector modulator disposed along electrical path. The AIC algorithm is operable to control the programmable-delay filter to match a delay of the electrical path to a propagation delay in an antenna path. The AIC algorithm is operable to control the vector modulator to adjust a phase, an amplitude or both of a copy of a first RF signal transmitted via the first antenna to generate a second RF signal. The second RF signal is added to a third RF signal via the second RF coupler to remove from the third RF signal interference caused by the first RF signal.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile