公开(公告)号：US20210135507A1

公开(公告)日：2021-05-06

申请号：US16868120

申请日：2020-05-06

Applicant: Apple Inc.

Inventor： Adam L. Schwartz ,  Ron Rafer C. Floresca ,  Liang Chen ,  Zaki Moussaoui

IPC: H02J50/70 ,  H02J7/02 ,  H02J50/80 ,  H02J50/10 ,  B60R25/24 ,  B60R25/33

Abstract: An electronic device such as a portable electronic device has wireless power receiving circuitry. A vehicle has a vehicle remote keyless system that transmits beacons. A key receives the beacons and responds with key codes to unlock doors and enable a vehicle ignition in the vehicle. In the presence of wireless power transfer operations there is a risk that wireless power signals will interfere with the reception of the beacons by the key. To ensure that beacons are satisfactorily received, conditions in which there is a risk of interference are detected and corresponding interference mitigation operations are performed.

公开(公告)号：US20210135499A1

公开(公告)日：2021-05-06

申请号：US17149167

申请日：2021-01-14

Applicant: Apple Inc.

Inventor： Liang Chen

IPC: H02J50/12 ,  H02J50/60 ,  H02J50/05

Abstract: An inductive power transmitter comprising: a converter configured to generate at least two object detection signals at substantially different frequencies, at least one transmitting coil configured to generate a magnetic field based on the object detection signals, and a controller configured to determine or measure circuit parameter(s) in relation to the coil to determine the inductance of the coil at each of the frequencies, and determine whether and/or what kind of object is present depending on a change in inductance between each of the frequencies.

公开(公告)号：US10566853B2

公开(公告)日：2020-02-18

申请号：US15548112

申请日：2016-02-03

Applicant: Apple Inc.

Inventor： Liang Chen

IPC: H02J50/90 ,  H02J7/02 ,  H02J50/12 ,  H01F38/14

Abstract: An inductive power transmitter 2 comprising: a plurality of transmitter coils 7; a controller 8 configured to selectively energise the coils 7 in order to couple a receiver 3, the coils 7 selected being dependent on an orientation of the receiver 3, a power transfer optimisation algorithm, or a lookup table.

公开(公告)号：US20190386519A1

公开(公告)日：2019-12-19

申请号：US16552179

申请日：2019-08-27

Applicant: Apple Inc.

Inventor： Liang Chen

IPC: H02J50/12 ,  H02J50/60 ,  H02J50/05 ,  H02J7/02

Abstract: An inductive power transmitter comprising: a converter configured to generate at least two object detection signals at substantially different frequencies, at least one transmitting coil configured to generate a magnetic field based on the object detection signals, and a controller configured to determine or measure circuit parameter(s) in relation to the coil to determine the inductance of the coil at each of the frequencies, and determine whether and/or what kind of object is present depending on a change in inductance between each of the frequencies.