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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.:

US 9954399 B1

PDFFull Text
Date of Patent:
Apr. 24, 2018

Filed:

Feb. 23, 2015

Reverse link signaling via receive antenna impedance modulation

Applicant:

Qualcomm Incorporated, San Diego, CA (US);

Inventors:

Stanley Slavko Toncich, San Diego, CA (US);

William Henry Von Novak, III, San Diego, CA (US);

Assignee:

QUALCOMM Incorporated, San Diego, CA (US);

Attorney:

Knobbe, Martens, Olson & Bear, LLP

Primary Examiner:

Lincoln Donovan

Assistant Examiner:

Metasebia Retebo

Int. Cl.
CPC ...
H01F 27/42 (2006.01); H01F 37/00 (2006.01); H01F 38/00 (2006.01); H02J 50/12 (2016.01); H02J 50/90 (2016.01); G06K 7/00 (2006.01); G06K 7/10 (2006.01); G06K 19/07 (2006.01); H01Q 1/38 (2006.01); H01Q 7/00 (2006.01); H02J 5/00 (2016.01); H02J 7/02 (2016.01); H04B 5/00 (2006.01); H04B 5/02 (2006.01); H02J 17/00 (2006.01); H01Q 1/22 (2006.01); H01F 38/14 (2006.01);
U.S. Cl.
CPC ...
H02J 50/12 (2016.02); G06K 7/0008 (2013.01); G06K 7/10178 (2013.01); G06K 19/0701 (2013.01); G06K 19/0715 (2013.01); G06K 19/0723 (2013.01); H01F 38/14 (2013.01); H01Q 1/2225 (2013.01); H01Q 1/38 (2013.01); H01Q 7/00 (2013.01); H02J 5/005 (2013.01); H02J 7/025 (2013.01); H02J 17/00 (2013.01); H02J 50/90 (2016.02); H04B 5/0031 (2013.01); H04B 5/0037 (2013.01); H04B 5/02 (2013.01); Y10T 307/406 (2015.04);
Abstract

Exemplary embodiments are directed to wireless power transfer including generating an electromagnetic field at a resonant frequency of a transmit antenna to create a coupling-mode region within a near-field of the transmit antenna. A receive antenna placed within the coupling-mode region resonates at or near the resonant frequency. The receive antenna extracts energy from a coupling between the two antennas. Signaling from the receive antenna to the transmit antenna is performed by generating a first power consumption state for the receive antenna to signal a first receive signal state and generating a second power consumption state for the receive antenna to signal a second receive signal state. Signaling from the transmit antenna to the receive antenna is performed by enabling the resonant frequency on the transmit antenna to signal a first transmit signal state and disabling the resonant frequency on the transmit antenna to signal a second transmit signal state.

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