Title:
NEAR FIELD COMMUNICATION METHOD AND DEVICE IN WIRELESS POWER TRANSMISSION SYSTEM
Document Type and Number:
WIPO Patent Application WO/2020/204303
Kind Code:
A1
Abstract:
The present invention relates to a near field communication method and device in a wireless power transmission system. A wireless power receiving device comprises: a power pick-up circuit configured to receive wireless power from a wireless power transmitting device having a primary coil by magnetic coupling to the wireless power transmitting device at an operating frequency and convert an alternating current signal generated from the wireless power into a direct current signal; a communication circuit configured to perform in-band communication with the wireless power transmitting device by using the operating frequency and perform out-band communication with the wireless power transmitting device or another device by using a frequency other than the operating frequency; and a control circuit configured to control an overall operation of the wireless power receiving device, wherein a first connection parameter for out-band communication between the wireless power transmitting device and the wireless power receiving device can be set equal to a second connection parameter for out-band communication between the wireless power transmitting device and another wireless power receiving device.
Inventors:
CHOI JINGU (KR)
LIM JINKWON (KR)
LEE MINSOO (KR)
PARK JOONHO (KR)
PARK YONGCHEOL (KR)
LIM JINKWON (KR)
LEE MINSOO (KR)
PARK JOONHO (KR)
PARK YONGCHEOL (KR)
Application Number:
PCT/KR2019/016699
Publication Date:
October 08, 2020
Filing Date:
November 29, 2019
Export Citation:
Assignee:
LG ELECTRONICS INC (KR)
International Classes:
H02J50/80
Domestic Patent References:
WO2018093099A1 | 2018-05-24 | |||
WO2014093160A1 | 2014-06-19 |
Foreign References:
KR20110134970A | 2011-12-16 | |||
KR20140124709A | 2014-10-27 | |||
KR20170030341A | 2017-03-17 |
Attorney, Agent or Firm:
ENVISION PATENT & LAW FIRM (KR)
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