Title:
ワイヤレス充電システムのための送信電力制御
Document Type and Number:
Japanese Patent JP5738940
Kind Code:
B2
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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Inventors:
Stanley Slavko Tonchik
William H. Bon Novak
William H. Bon Novak
Application Number:
JP2013164593A
Publication Date:
June 24, 2015
Filing Date:
August 07, 2013
Export Citation:
Assignee:
QUALCOMM INCORPORATED
International Classes:
H02J17/00; H04B1/59
Domestic Patent References:
| JP2006230129A | ||||
| JP2006238548A | ||||
| JP2005110412A | ||||
| JP2000037046A | ||||
| JP2007089341A |
Foreign References:
| WO2007015599A1 |
Attorney, Agent or Firm:
Kurata Masatoshi
Yoshihiro Fukuhara
Makoto Nakamura
Nobuhisa Nogawa
Takashi Mine
Naoki Kono
Katsu Sunagawa
Morisezo Iseki
Takao Ako
Tadashi Inoue
Tatsushi Sato
Takashi Okada
Mihoko Horiuchi
Yoshihiro Fukuhara
Makoto Nakamura
Nobuhisa Nogawa
Takashi Mine
Naoki Kono
Katsu Sunagawa
Morisezo Iseki
Takao Ako
Tadashi Inoue
Tatsushi Sato
Takashi Okada
Mihoko Horiuchi