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    Coordinating complementary notifications across related computing devices connected to a wireless charging apparatus
    11.
    发明授权
    Coordinating complementary notifications across related computing devices connected to a wireless charging apparatus 有权

    公开(公告)号：US11936225B2

    公开(公告)日：2024-03-19

    申请号：US17658440

    申请日：2022-04-07

    Applicant: Apple Inc.

    Inventor： Brandon R. Garbus ,  Christopher C. Jensen ,  Alexei E. Kosut

    IPC: H02J7/00 ,  H02J50/10

    CPC classification number: H02J7/0048 ,  H02J7/00034 ,  H02J7/0013 ,  H02J50/10 ,  H02J2310/22

    Abstract: The embodiments set forth a technique for coordinating notifications across computing devices placed onto a wireless charging apparatus. According to some embodiments, the technique can involve the wireless charging apparatus (1) receiving, from a first computing device, first information that includes (i) a first unique identifier (ID) associated with the first computing device, and (ii) one or more unique IDs that are each associated with a respective auxiliary computing device known to the first computing device. Subsequently, the wireless charging apparatus can receive, from a second computing device, second information that at least includes a second unique ID associated with the second computing device. Finally, the wireless charging apparatus can, in response to determining that the second unique ID is included in the one or more unique IDs, and cause both the first and second computing devices to display respective notifications in a coordinated manner.

    Electromagnetic shielding for wireless power transfer systems
    13.
    发明授权
    Electromagnetic shielding for wireless power transfer systems 有权

    公开(公告)号：US10910862B2

    公开(公告)日：2021-02-02

    申请号：US15701224

    申请日：2017-09-11

    Applicant: Apple Inc.

    Inventor： Shimon Elkayam ,  Brandon R. Garbus ,  Christopher S. Graham ,  Karl Ruben F. Larsson

    IPC: H02J7/00 ,  H02J7/02 ,  H02J50/40 ,  H02J50/70 ,  H02J50/10 ,  H01F38/14

    Abstract: Embodiments describe electromagnetic shielding for wireless charging systems. A wireless charging system includes a transmitter coil configured to generate a magnetic flux, a receiver coil positioned coaxial with the transmitter coil to receive the generated magnetic flux, where electrical interaction between the transmitter coil and the receiver coil generates electric fields, a transmitter shield positioned between the transmitter coil and the receiver coil to intercept some of the electric fields directed away from the transmitter coil and allow the magnetic flux to pass through the transmitter shield, and a receiver shield positioned between the transmitter shield and the receiver coil to intercept some of the electric fields directed away from the receiver coil and allow the magnetic flux to pass through the receiver shield.

    Wireless Charging Device with Multi-tone Data Receiver and Active Power Supply Noise Cancellation Circuitry
    14.
    发明申请
    Wireless Charging Device with Multi-tone Data Receiver and Active Power Supply Noise Cancellation Circuitry 审中-公开

    公开(公告)号：US20200274403A1

    公开(公告)日：2020-08-27

    申请号：US16872172

    申请日：2020-05-11

    Applicant: Apple Inc.

    Inventor： Moshe H. Malkin ,  Manu Agarwal ,  Brandon R. Garbus

    IPC: H02J50/80 ,  H02J50/12 ,  H04B5/00

    Abstract: A wireless power transmitting device transmits wireless power signals modulated at a given power frequency to a wireless power receiving device using a wireless power transmitting coil. The wireless power receiving device may transmit data signals to the wireless power transmitting device. The wireless power transmitting device may include a data receiver that is coupled to the wireless power transmitting coil and that receives the transmitted data. The data receiver may include an input stage, bandpass filter circuitry, demodulator circuitry, and a data stream combiner. The data receiver may further include a power supply noise cancellation circuit. The power supply noise cancellation circuit may include an input stage, a baseband filter, a window filter, a down-sampler, and a difference filter. The power supply noise cancellation circuit may be coupled to the data stream combiner and is configured to mitigate power supply noise interference in the received data.

    Wireless Power System With Battery Charge Indicators
    15.
    发明申请
    Wireless Power System With Battery Charge Indicators 审中-公开

    公开(公告)号：US20190081499A1

    公开(公告)日：2019-03-14

    申请号：US16026931

    申请日：2018-07-03

    Applicant: Apple Inc.

    Inventor： Adrian E. Sun ,  Gregory H. Nayman ,  Cortland S. Tolva ,  Joseph W. Colosimo ,  Antonio R. De Lima Fernandes ,  Brandon R. Garbus ,  Alexei E. Kosut

    IPC: H02J7/02 ,  H02J50/40 ,  H02J50/80 ,  H04R1/10 ,  H04B1/3883

    Abstract: A wireless power system includes a wireless power transmitting device such as a wireless charging mat for charging devices such as a cellular telephone and an earbuds battery case. The earbuds battery case receives earbuds and charges the earbuds from a battery. The wireless charging mat supports bidirectional in-band communications between the cellular telephone and the earbuds battery case. The earbuds battery case provides the cellular telephone with information on the battery charge level associated with the battery in the earbuds battery case and a battery charge level associated with each earbud in the earbuds battery case. The cellular telephone receives battery charge level information through the wireless charging mat and displays corresponding indicators. The earbuds battery case has a visual output device such as a light-emitting diode that is illuminated to indicate that the earbuds battery case is being charged.

    Operating an inductive energy transfer system
    16.
    发明授权
    Operating an inductive energy transfer system 有权

    公开(公告)号：US10193372B2

    公开(公告)日：2019-01-29

    申请号：US14795723

    申请日：2015-07-09

    Applicant: Apple Inc.

    Inventor： Steven G. Herbst ,  Scott D. Morrison ,  Jeffrey M. Alves ,  Brandon R. Garbus ,  Jim C. Hwang ,  Robert S. Parnell ,  Terry L. Tikalsky

    IPC: H02J7/02 ,  H02J5/00 ,  H02J50/10 ,  H02J50/80

    Abstract: A receiver device in an inductive energy transfer system can include a touch sensing device. If the input surface of the touch sensing device is touched, a transmitter device can periodically stop transferring energy to allow the touch sensing device to sense touch samples while inductive energy transfer is inactive. Additionally or alternatively, a transmitter device can produce an averaged duty cycle by transferring energy to the receiver device for one or more periods at a first duty cycle step and for one or more periods at different second first duty cycle step. Additionally or alternatively, a transmitter device can reduce a current level received by a DC-to-AC converter if the current received by the DC-to-AC converter equals or exceeds a threshold. Additionally or alternatively, a transmitter device can ping a receiver device and transfer energy only after a response signal is received from the receiver device.

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