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公开(公告)号：US09923383B2
公开(公告)日：2018-03-20
申请号：US14627957
申请日：2015-02-20
Applicant: Apple Inc.
Inventor： David W. Ritter , Jeffrey M Alves , Todd K. Moyer , Steven G. Herbst
Abstract: A receiver device in a coupled coil system for wireless energy transfer includes a receiver coil and a load device operatively connected to the receiver coil and configured to receive a signal from the receiver coil. As one example, the load device is a rechargeable battery. An adjusting filter is included in the receiver device and is operatively connected between the receiver coil and the load device. The adjusting filter can be used to transform the effective resistance or impedance of the load as presented to the transformer during energy transfer so that the effective resistant or impedance of the load is maintained at a substantially constant level, and the signal received by the load device is maintained at a substantially constant level.
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公开(公告)号：US09813041B1
公开(公告)日：2017-11-07
申请号：US14449075
申请日：2014-07-31
Applicant: Apple Inc.
Inventor： David W. Ritter
Abstract: Wireless power transfer systems having improved power transfer efficiency are disclosed. A wireless power receiver may include an automatic impedance regulator that adjusts the effective input impedance of the receiver depending upon the power requirements of the receiver. For example, in certain embodiments, the impedance regulator is a boost converter. The boost converter may exploit the leakage inductance of the receive coil to boost the voltage output from the terminals of the receive coil. The effective input impedance may be substantially matched to the output impedance of the transmitter.
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公开(公告)号：US20160372960A1
公开(公告)日：2016-12-22
申请号：US15184868
申请日：2016-06-16
Applicant: Apple Inc.
Inventor： David W. Ritter , David B. Kosecoff , David S. Kumka , Madhusudanan Keezhveedi Sampath , Steven Charles Michalske , Tavys Q. Ashcroft , Aditya Rao , Ariadne Smith
CPC classification number: H02J7/025 , H01F27/28 , H01F38/14 , H02J7/0044 , H02J50/10 , H02J50/12 , H02J50/40
Abstract: A wireless charging system including a transmitter and a receiver. The transmitter is formed of a coil of wire that includes a first loop portion, a second loop portion, and a crossing portion. The crossing portion electrically couples the first loop portion and the second loop portion such that when current is generated in the coil, electrical current flows through the first loop portion in a different rotational direction than in the second loop portion. The receiver is formed of a ferromagnetic core and multiple (e.g., three) coils disposed about the ferromagnetic core. Each coil may be disposed about a different axis of the core such that current may be induced in at least one of the coils by a magnetic field in any direction.
Abstract translation: 一种包括发射机和接收机的无线充电系统。 发射机由包括第一环路部分，第二环路部分和交叉部分的线圈组成。 交叉部分电耦合第一环路部分和第二环路部分，使得当在线圈中产生电流时，电流在与第二环路部分不同的旋转方向上流过第一环路部分。 接收器由铁磁芯和围绕铁磁芯设置的多个（例如，三个）线圈形成。 每个线圈可以围绕芯的不同轴设置，使得可以通过任何方向上的磁场在至少一个线圈中感应电流。
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公开(公告)号：US20150244179A1
公开(公告)日：2015-08-27
申请号：US14627957
申请日：2015-02-20
Applicant: Apple Inc.
Inventor： David W. Ritter , Jeffrey M. Alves , Todd K. Moyer , Steven G. Herbst
IPC: H02J5/00
Abstract: A receiver device in a coupled coil system for wireless energy transfer includes a receiver coil and a load device operatively connected to the receiver coil and configured to receive a signal from the receiver coil. As one example, the load device is a rechargeable battery. An adjusting filter is included in the receiver device and is operatively connected between the receiver coil and the load device. The adjusting filter can be used to transform the effective resistance or impedance of the load as presented to the transformer during energy transfer so that the effective resistant or impedance of the load is maintained at a substantially constant level, and the signal received by the load device is maintained at a substantially constant level.
Abstract translation: 用于无线能量传递的耦合线圈系统中的接收器装置包括接收器线圈和可操作地连接到接收器线圈并被配置为从接收器线圈接收信号的负载装置。 作为一个示例，负载设备是可充电电池。 调节滤波器包括在接收器装置中并且可操作地连接在接收器线圈和负载装置之间。 调节滤波器可用于在能量传递期间将呈现的负载的有效电阻或阻抗转换为变压器，使得负载的有效电阻或阻抗保持在基本上恒定的水平，并且由负载装置接收的信号 维持在基本恒定的水平。
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公开(公告)号：US20150097443A1
公开(公告)日：2015-04-09
申请号：US14503363
申请日：2014-09-30
Applicant: Apple Inc.
Inventor： Todd K. Moyer , Jeffrey M. Alves , Steven G. Herbst , David W. Ritter , Jeffrey J. Terlizzi
IPC: H02J5/00
Abstract: In an inductive energy transfer system, the phase of a signal that is applied to a transmitter coil to transfer energy is adjusted while energy is transferred from the transmitter device to a receiver device. The phase of the signal can be adjusted by changing a state of a DC-to-AC converter from a converting state to a non-converting state. The DC-to-AC converter outputs a signal that is applied to the transmitter coil when the DC-to-AC converter is in a converting state. A signal is not applied to the transmitter coil when the DC-to-AC converter is in a non-converting state.
Abstract translation: 在感应能量传递系统中，调节施加到发射器线圈以传递能量的信号的相位，同时能量从发射器装置传送到接收器装置。 可以通过将DC-AC转换器的状态从转换状态改变为非转换状态来调整信号的相位。 当DC-AC转换器处于转换状态时，DC-AC转换器输出施加到发送器线圈的信号。 当DC-AC转换器处于非转换状态时，不向发送器线圈施加信号。
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Patent Agency Ranking
公开(公告)号：US20240283303A1
公开(公告)日：2024-08-22
申请号：US18638216
申请日：2024-04-17
Applicant: Apple Inc.
Inventor： Chad A. Bossetti , Christopher S. Graham , David W. Ritter , Todd K. Moyer , Steven G. Herbst , Shimon Elkayam , Nileshbhai J. Shah , Stephen C. Terry , Zaki Moussaoui
CPC classification number: H02J50/90 , G01D5/16 , G01D5/20 , G01D5/24 , H02J50/10 , H02J50/12 , H10N30/302
Abstract: A wireless charging mat and method of operating the same. The wireless charging mat includes a detection system configured to determine a location and an orientation of an electronic device on the wireless charging mat. The location and orientation are determined based on detected locations of one or more structural features of the electronic device. The wireless charging mat is operated according to the detected location and orientation.
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公开(公告)号：US20210359556A1
公开(公告)日：2021-11-18
申请号：US17389124
申请日：2021-07-29
Applicant: Apple Inc.
Inventor： Chad A. Bossetti , Christopher S. Graham , David W. Ritter , Todd K. Moyer , Steven G. Herbst , Shimon Elkayam , Nileshbhai J. Shah , Stephen C. Terry , Zaki Moussaoui
Abstract: A wireless charging mat and method of operating the same. The wireless charging mat includes a detection system configured to determine a location and an orientation of an electronic device on the wireless charging mat. The location and orientation are determined based on detected locations of one or more structural features of the electronic device. The wireless charging mat is operated according to the detected location and orientation.
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公开(公告)号：US10720789B2
公开(公告)日：2020-07-21
申请号：US16362592
申请日：2019-03-22
Applicant: Apple Inc.
Inventor： David W. Ritter , David B. Kosecoff , David S. Kumka , Madhusudanan Keezhveedi Sampath , Steven Charles Michalske , Tavys Q. Ashcroft , Aditya Rao , Ariadne Smith
IPC: H02J7/02 , H02J50/40 , H01F27/28 , H01F38/14 , H02J7/00 , H02J50/10 , H02J50/12 , H01F41/04 , H01F41/12
Abstract: A wireless charging system including a transmitter and a receiver. The transmitter is formed of a coil of wire that includes a first loop portion, a second loop portion, and a crossing portion. The crossing portion electrically couples the first loop portion and the second loop portion such that when current is generated in the coil, electrical current flows through the first loop portion in a different rotational direction than in the second loop portion. The receiver is formed of a ferromagnetic core and multiple (e.g., three) coils disposed about the ferromagnetic core. Each coil may be disposed about a different axis of the core such that current may be induced in at least one of the coils by a magnetic field in any direction.
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公开(公告)号：US09837866B2
公开(公告)日：2017-12-05
申请号：US14503363
申请日：2014-09-30
Applicant: Apple Inc.
Inventor： Todd K. Moyer , Jeffrey M. Alves , Steven G. Herbst , David W. Ritter , Jeffrey J. Terlizzi
Abstract: In an inductive energy transfer system, the phase of a signal that is applied to a transmitter coil to transfer energy is adjusted while energy is transferred from the transmitter device to a receiver device. The phase of the signal can be adjusted by changing a state of a DC-to-AC converter from a converting state to a non-converting state. The DC-to-AC converter outputs a signal that is applied to the transmitter coil when the DC-to-AC converter is in a converting state. A signal is not applied to the transmitter coil when the DC-to-AC converter is in a non-converting state.
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公开(公告)号：US20170084250A1
公开(公告)日：2017-03-23
申请号：US14857321
申请日：2015-09-17
Applicant: APPLE INC.
Inventor： Zhang Jia , Amy M. Winkler , Christopher S. Erickson , Zhen Zhang , David W. Ritter
CPC classification number: G09G5/06 , G01J3/0251 , G01J3/0297 , G01J3/10 , G01J3/465 , G01J3/50 , G01J3/505 , G01J3/513 , G01J3/524 , G01J2003/104 , G01J2003/106 , G09G2320/0242 , G09G2320/0285 , G09G2320/0666 , G09G2320/0693 , G09G2360/144
Abstract: An electronic device may be provided with a color sensing ambient light sensor. The color sensing ambient light sensor may measure the color of ambient light. Control circuitry in the electronic device may use information from the color sensing ambient light sensor in adjusting a display in the electronic device or taking other action. The color sensing ambient light sensor may have light detectors with different spectral responses. A test system may be used to calibrate the color sensing light sensor. The test system may have a tunable light source with light-emitting diodes that are turned on in sequence while gathering measured responses from the detectors. Numerical optimization techniques may be used to produce final versions of the spectral responses for the light detectors from the measured responses and corresponding calibration data that is stored in the electronic device.
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