Title:
Radio charger
Document Type and Number:
Japanese Patent JP6198855
Kind Code:
B2
Abstract:
The invention relates to decreasing power consumption of wireless charging devices in standby condition. A method for decreasing power consumption comprises feeding at least one detecting signal as a pulse to a wireless charging coil (120) of a power transmitter (100) comprising a charging area, wherein the detecting signal corresponds with an expected resonance frequency of the wireless charging coil (120) measuring a reflected signal caused by feeding the detecting signal, determining whether the reflected signal satisfies a non-resonance condition and activating a power transmitting circuit in response to determining that the reflected signal satisfies the non-resonance condition. The invention further relates to an apparatus and a computer program product.
Inventors:
Toivola timo
Cali Yuhani
Saari Yarmo
Kaunist Ismo
Cali Yuhani
Saari Yarmo
Kaunist Ismo
Application Number:
JP2015558517A
Publication Date:
September 20, 2017
Filing Date:
February 27, 2013
Export Citation:
Assignee:
Nokia Technologies Oyu
International Classes:
H02J7/00; H02J50/12; H02J50/60
Domestic Patent References:
| JP2000295796A | ||||
| JP2006230032A | ||||
| JP2008236916A |
Attorney, Agent or Firm:
Kawamori Mitsunori
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