Title:
The wireless electric power system using capacitive proximity perception
Document Type and Number:
Japanese Patent JP6258324
Kind Code:
B2
Abstract:
This disclosure provides systems, methods and apparatus for tuning a transmit coil for operation in a plurality of frequency bands. In one aspect, a method of wireless power transmission is provided. The method includes exciting a first part of a wireless power transmission system, via a wireless power transmitter. The method further includes detecting, in the presence of a non-charging object, a first change in a first parameter. The first parameter is indicative of a coupling between the non-charging object and the first part. The method further includes varying a characteristic of the wireless power transmission based on said first change.
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Inventors:
William H. von Novak
Pavel Monato
Edward Carral
Pavel Monato
Edward Carral
Application Number:
JP2015527486A
Publication Date:
January 10, 2018
Filing Date:
August 06, 2013
Export Citation:
Assignee:
Qualcomm, Inc.
International Classes:
H04B1/04; H02J7/00; H02J50/12
Domestic Patent References:
| JP2011507481A | ||||
| JP2012517795A | ||||
| JP2011526099A | ||||
| JP2009033782A | ||||
| JP2011244641A |
Foreign References:
| US20050099278 |
Attorney, Agent or Firm:
Yasuhiko Murayama
Kuroda Shinpei
Kuroda Shinpei