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:
Dec. 22, 2020
Filed:
May. 18, 2018
Qualcomm Incorporated, San Diego, CA (US);
Roberto Rimini, San Diego, CA (US);
Anant Gupta, Santa Barbara, CA (US);
QUALCOMM Incorporated, San Diego, CA (US);
Abstract
An apparatus is disclosed for proximity detection using adaptive mutual coupling cancellation. In an example aspect, the apparatus includes at least two antennas, a wireless transceiver connected to the at least two antennas, and a mutual coupling cancellation module. The at least two antennas include a first antenna and a second antenna, which are mutually coupled electromagnetically. The second antenna includes two feed ports. The wireless transceiver is configured to transmit a radar transmit signal via the first antenna and receive two versions of a radar receive signal respectively via the two feed ports of the second antenna. The wireless transceiver is also configured to adjust a transmission parameter based on a decoupled signal. The transmission parameter varies based on a range to the object. The mutual coupling cancellation module is configured to generate the decoupled signal based on the two versions of the radar receive signal.