Wireless power system with in-band communication

    公开(公告)号:US11070087B2

    公开(公告)日:2021-07-20

    申请号:US16194669

    申请日:2018-11-19

    Applicant: Apple Inc.

    Abstract: A wireless power receiving device has a receive coil that receives wireless power signals from a wireless power transmitting device and has a rectifier that produces direct-current power from the received wireless power signals. The receive coil of the wireless power receiving device is coupled to wireless transceiver circuitry. Similarly the transmit coil of the wireless power transmitting device is coupled to wireless transceiver circuitry. The wireless transceiver circuitry in the wireless power receiving device or transmitting may be configured to generate and/or modulate one or more data carrier waves using any desired modulation scheme. The one or more modulated data carrier waves are transmitted between the transmit coil and the receive coil of the corresponding wireless power transmitting and receiving devices. The one or more data carrier waves may have a frequency that is different than the power transmission frequency.

    Soft Magnetic Ring for Wireless Power Devices

    公开(公告)号:US20240088714A1

    公开(公告)日:2024-03-14

    申请号:US18512864

    申请日:2023-11-17

    Applicant: Apple Inc.

    Inventor: Jeffrey D. Louis

    CPC classification number: H02J50/10 H01F1/147 H01F38/14 H02J7/00032 H02J7/02

    Abstract: A device or an accessory may include a near-field communications antenna and a soft magnetic ring concentric with the near-field communications antenna. The device or accessory may further include at least one wireless power transfer coil concentric with the near-field communications antenna, a rectifier coupled to the at least one wireless power transfer coil, and a battery configured to receive a rectified voltage from the rectifier. The soft magnetic ring may be used to shunt magnetic flux from one or more nearby magnets in external electronic devices to prevent the magnets from repelling each other. The soft magnetic ring may be attracted to a magnet in an external device to help align wireless power transfer coils in the two mated devices.

    Communication Between Devices During Wireless Power Transfer

    公开(公告)号:US20210409073A1

    公开(公告)日:2021-12-30

    申请号:US17183169

    申请日:2021-02-23

    Applicant: Apple Inc.

    Abstract: A wireless power system has a wireless power transmitting device and a wireless power receiving device. The devices in the wireless power system may communicate using in-band communication. The wireless power transmitting device may transmit data to the wireless power receiving device using frequency-shift keying (FSK) modulation. The wireless power receiving device may transmit data to the wireless power transmitting device using amplitude-shift keying (ASK) modulation. While transmitting data to the wireless power receiving device using FSK modulation, the wireless power transmitting device may monitor for ASK modulation from the wireless power receiving device. In response to detecting the ASK modulation from the wireless power receiving device, the wireless power transmitting device may abort the FSK data transmission and process the detected ASK modulation to receive data from the wireless power receiving device.

    Communication Between Devices During Wireless Power Transfer

    公开(公告)号:US20230336211A1

    公开(公告)日:2023-10-19

    申请号:US18341538

    申请日:2023-06-26

    Applicant: Apple Inc.

    Abstract: A wireless power system has a wireless power transmitting device and a wireless power receiving device. The devices in the wireless power system may communicate using in-band communication. The wireless power transmitting device may transmit data to the wireless power receiving device using frequency-shift keying (FSK) modulation. The wireless power receiving device may transmit data to the wireless power transmitting device using amplitude-shift keying (ASK) modulation. While transmitting data to the wireless power receiving device using FSK modulation, the wireless power transmitting device may monitor for ASK modulation from the wireless power receiving device. In response to detecting the ASK modulation from the wireless power receiving device, the wireless power transmitting device may abort the FSK data transmission and process the detected ASK modulation to receive data from the wireless power receiving device.

    Communication between devices during wireless power transfer

    公开(公告)号:US11329696B2

    公开(公告)日:2022-05-10

    申请号:US17183169

    申请日:2021-02-23

    Applicant: Apple Inc.

    Abstract: A wireless power system has a wireless power transmitting device and a wireless power receiving device. The devices in the wireless power system may communicate using in-band communication. The wireless power transmitting device may transmit data to the wireless power receiving device using frequency-shift keying (FSK) modulation. The wireless power receiving device may transmit data to the wireless power transmitting device using amplitude-shift keying (ASK) modulation. While transmitting data to the wireless power receiving device using FSK modulation, the wireless power transmitting device may monitor for ASK modulation from the wireless power receiving device. In response to detecting the ASK modulation from the wireless power receiving device, the wireless power transmitting device may abort the FSK data transmission and process the detected ASK modulation to receive data from the wireless power receiving device.

    Soft magnetic ring for wireless power devices

    公开(公告)号:US12095279B2

    公开(公告)日:2024-09-17

    申请号:US18512864

    申请日:2023-11-17

    Applicant: Apple Inc.

    Inventor: Jeffrey D. Louis

    CPC classification number: H02J50/10 H01F1/147 H01F38/14 H02J7/00032 H02J7/02

    Abstract: A device or an accessory may include a near-field communications antenna and a soft magnetic ring concentric with the near-field communications antenna. The device or accessory may further include at least one wireless power transfer coil concentric with the near-field communications antenna, a rectifier coupled to the at least one wireless power transfer coil, and a battery configured to receive a rectified voltage from the rectifier. The soft magnetic ring may be used to shunt magnetic flux from one or more nearby magnets in external electronic devices to prevent the magnets from repelling each other. The soft magnetic ring may be attracted to a magnet in an external device to help align wireless power transfer coils in the two mated devices.

    Communication between devices during wireless power transfer

    公开(公告)号:US11968004B2

    公开(公告)日:2024-04-23

    申请号:US18341538

    申请日:2023-06-26

    Applicant: Apple Inc.

    Abstract: A wireless power system has a wireless power transmitting device and a wireless power receiving device. The devices in the wireless power system may communicate using in-band communication. The wireless power transmitting device may transmit data to the wireless power receiving device using frequency-shift keying (FSK) modulation. The wireless power receiving device may transmit data to the wireless power transmitting device using amplitude-shift keying (ASK) modulation. While transmitting data to the wireless power receiving device using FSK modulation, the wireless power transmitting device may monitor for ASK modulation from the wireless power receiving device. In response to detecting the ASK modulation from the wireless power receiving device, the wireless power transmitting device may abort the FSK data transmission and process the detected ASK modulation to receive data from the wireless power receiving device.

    Communication Between Devices During Wireless Power Transfer

    公开(公告)号:US20220231729A1

    公开(公告)日:2022-07-21

    申请号:US17714902

    申请日:2022-04-06

    Applicant: Apple Inc.

    Abstract: A wireless power system has a wireless power transmitting device and a wireless power receiving device. The devices in the wireless power system may communicate using in-band communication. The wireless power transmitting device may transmit data to the wireless power receiving device using frequency-shift keying (FSK) modulation. The wireless power receiving device may transmit data to the wireless power transmitting device using amplitude-shift keying (ASK) modulation. While transmitting data to the wireless power receiving device using FSK modulation, the wireless power transmitting device may monitor for ASK modulation from the wireless power receiving device. In response to detecting the ASK modulation from the wireless power receiving device, the wireless power transmitting device may abort the FSK data transmission and process the detected ASK modulation to receive data from the wireless power receiving device.

    Soft magnetic ring for wireless power devices

    公开(公告)号:US11862985B2

    公开(公告)日:2024-01-02

    申请号:US17380957

    申请日:2021-07-20

    Applicant: Apple Inc.

    Inventor: Jeffrey D. Louis

    CPC classification number: H02J50/10 H01F1/147 H01F38/14 H02J7/00032 H02J7/02

    Abstract: A device or an accessory may include a near-field communications antenna and a soft magnetic ring concentric with the near-field communications antenna. The device or accessory may further include at least one wireless charging coil concentric with the near-field communications antenna, a rectifier coupled to the at least one wireless charging coil, and a battery configured to receive a rectified voltage from the rectifier. The soft magnetic ring may be used to shunt magnetic flux from one or more nearby magnets in external electronic devices to prevent the magnets from repelling each other. The soft magnetic ring may be attracted to a magnet in an external device to help align wireless charging coils in the two mated devices.

    Communication between devices during wireless power transfer

    公开(公告)号:US11736147B2

    公开(公告)日:2023-08-22

    申请号:US17714902

    申请日:2022-04-06

    Applicant: Apple Inc.

    Abstract: A wireless power system has a wireless power transmitting device and a wireless power receiving device. The devices in the wireless power system may communicate using in-band communication. The wireless power transmitting device may transmit data to the wireless power receiving device using frequency-shift keying (FSK) modulation. The wireless power receiving device may transmit data to the wireless power transmitting device using amplitude-shift keying (ASK) modulation. While transmitting data to the wireless power receiving device using FSK modulation, the wireless power transmitting device may monitor for ASK modulation from the wireless power receiving device. In response to detecting the ASK modulation from the wireless power receiving device, the wireless power transmitting device may abort the FSK data transmission and process the detected ASK modulation to receive data from the wireless power receiving device.

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