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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 9991747 B1

PDFFull Text
Date of Patent:
Jun. 05, 2018

Filed:

Aug. 27, 2015

Signaling charging in wireless power environment

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:

Fritz M Fleming

Int. Cl.
CPC ...
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 transmitter to create a coupling-mode region within a near field of the transmitter during a synchronization portion of a time-multiplexed recurring period. During a power transmission portion of the recurring period, the electromagnetic field will continue to be generated when there is a receiver within the coupling-mode region, or the electromagnetic field will be disabled when there are no receivers within the coupling-mode region. Different segments of the power transmission portion are allocated to different receivers. The transmitter issues serial commands to the receivers by on/off keying the electromagnetic field. The receivers issue serial replies by changing the amount of power consumed from the electromagnetic field between two different states. The serial commands and serial replies are used to determine the number of receivers, their power requirements, and the allocation of segments.

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