公开(公告)号：EP2294708A1

公开(公告)日：2011-03-16

申请号：EP09807517.9

申请日：2009-05-11

Applicant: QUALCOMM Incorporated

Inventor： MOHAMMADIAN, Alireza Hormoz ,  KASTURI, Sreenivas ,  KIRBY, Miles, Alexander, Lyell ,  OZAKI, Ernest T. ,  TONCICH, Stanley, Slavko ,  TRAN, Allen Minh-Triet

IPC: H04B5/02 ,  H01Q1/22

CPC classification number: H02J50/12 ,  G06K7/0008 ,  G06K7/10178 ,  G06K19/0701 ,  G06K19/0715 ,  G06K19/0723 ,  H01F38/14 ,  H01Q1/2225 ,  H01Q1/38 ,  H01Q7/00 ,  H02J5/005 ,  H02J7/025 ,  H02J17/00 ,  H02J50/90 ,  H04B5/0031 ,  H04B5/0037 ,  H04B5/02 ,  Y10T307/406

Abstract: Exemplary embodiments are directed to wireless power transfer including generating an electromagnetic field at a resonant frequency of a transmit antenna to create a coupling-mode region within a near-field of the transmit antenna. A receive antenna placed within the coupling-mode region resonates at or near the resonant frequency. The receive antenna extracts energy from a coupling between the two antennas. Signaling from the receive antenna to the transmit antenna is performed by generating a first power consumption state for the receive antenna to signal a first receive signal state and generating a second power consumption state for the receive antenna to signal a second receive signal state. Signaling from the transmit antenna to the receive antenna is performed by enabling the resonant frequency on the transmit antenna to signal a first transmit signal state and disabling the resonant frequency on the transmit antenna to signal a second transmit signal state.

Abstract translation: 示例性实施例涉及无线功率传输，包括在发射天线的谐振频率处产生电磁场，以在发射天线的近场内产生耦合模式区域。 放置在耦合模式区域内的接收天线在谐振频率处或谐振频率处共振。 接收天线从两个天线之间的耦合中提取能量。 从接收天线到发射天线的信令通过产生用于接收天线的第一功率消耗状态来发信号通知第一接收信号状态并产生用于接收天线的第二功率消耗状态来发出第二接收信号状态。 通过使得发射天线上的谐振频率能够发信号通知第一发射信号状态并禁用发射天线上的谐振频率来发出第二发射信号状态来执行从发射天线到接收天线的信令。

公开(公告)号：EP2870713B1

公开(公告)日：2017-09-20

申请号：EP13752983.0

申请日：2013-08-06

Applicant: Qualcomm Incorporated

Inventor： TSENG, Ryan ,  KASTURI, Sreenivas ,  KALLAL, Edward ,  RADOVIC, Milorad ,  VON NOVAK, William H.

IPC: H04B17/00 ,  H04B1/04 ,  H02H3/20 ,  H04B5/00 ,  H04B17/10 ,  H02J5/00

CPC classification number: H02H3/20 ,  H02J5/005 ,  H02J50/12 ,  H02J50/40 ,  H02J50/60 ,  H02J50/80 ,  H02J50/90 ,  H04B1/0466 ,  H04B5/0037 ,  H04B5/0093 ,  H04B17/103

公开(公告)号：EP2781033A1

公开(公告)日：2014-09-24

申请号：EP12791655.9

申请日：2012-11-13

Applicant: Qualcomm Incorporated

Inventor： KASTURI, Sreenivas ,  LOW, Zhen Ning

IPC: H04B5/00

CPC classification number: H04B5/0087 ,  H04B5/0037

Abstract: This disclosure provides systems, methods and apparatus for tuning a transmit antenna for operation in a plurality of frequency bands. In one aspect, a transmitting antenna system is provided. The transmitting antenna system includes an active transmit antenna and a tunable passive antenna. The active antenna is configured to transmit a field over a plurality of operating frequencies. The passive antenna is configured to transmit a field over at least two frequencies of the plurality of operating frequencies. In one aspect, the tunable passive antenna includes a network of a plurality of reactive elements. In another aspect, the plurality of operating frequencies is selected from a set including a charging frequency, an NFC frequency, and a communication frequency.

Abstract translation: 本公开提供了用于调谐用于在多个频带中操作的发射天线的系统，方法和装置。 一方面，提供发射天线系统。 发射天线系统包括有源发射天线和可调无源天线。 有源天线被配置为在多个工作频率上发射场。 无源天线被配置为通过多个工作频率的至少两个频率发射场。 在一个方面，可调谐无源天线包括多个无功元件的网络。 另一方面，从包括充电频率，NFC频率和通信频率的组中选择多个工作频率。

公开(公告)号：EP2700176A1

公开(公告)日：2014-02-26

申请号：EP12718000.8

申请日：2012-04-17

Applicant: Qualcomm Incorporated

Inventor： LOW, Zhen Ning ,  WHEATLEY III, Charles Edward ,  KASTURI, Sreenivas

IPC: H04B5/00 ,  H02J5/00 ,  H02J17/00

CPC classification number: H04B5/0037 ,  H02J7/025 ,  H02J17/00 ,  H02J50/12 ,  H02J50/40 ,  H02J50/60 ,  H02J50/80

Abstract: This disclosure provides systems, methods and apparatus for tuning a wireless power transmitter. In one aspect an apparatus configured to wirelessly provide power to a load is provided. The apparatus includes a transmit circuit including a transmit coil. The transmit circuit is configured to wirelessly provide power to the load. The transmit coil is configured to resonate at a resonant frequency. The transmit circuit has a reactance. The apparatus further includes a detection circuit configured to detect a change in the resonant frequency while providing power to the load. The apparatus further includes a tuning circuit configured to adjust the reactance based on the change.