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公开(公告)号：US20220407354A1
公开(公告)日：2022-12-22
申请号：US17380957
申请日：2021-07-20
Applicant: Apple Inc.
Inventor： Jeffrey D. Louis
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.
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公开(公告)号：US20190238000A1
公开(公告)日：2019-08-01
申请号：US16194669
申请日：2018-11-19
Applicant: Apple Inc.
Inventor： Atul A. Salvekar , Jeffrey D. Louis
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.
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