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公开(公告)号:US11561752B2
公开(公告)日:2023-01-24
申请号:US17480089
申请日:2021-09-20
Applicant: Apple Inc.
Inventor: Mahmoud N. Mahmoud , Cheung-Wei Lam , Ali Foudazi , Le Wang , Qianyi Zhao , Kedi Zhang , Xingchao C. Yuan , Jon F. Housour , Gary Chung
Abstract: Devices for mitigating or stopping noise or surface current on a display are provided. An electronic device including a display may include a display substrate, a mid-support plate that is adjacent to the display substrate, and a lower support plate that is adjacent to the mid-support plate. A space exists between the mid-support plate and the lower support plate. The mid-support plate includes one or more electromagnetic band gap (EBG) structures formed through the mid-support plate, one or more electromagnetic band gap structures mounted onto the mid-support plate, or both. The one or more electromagnetic band gap structures may mitigate or stop surface current flow across the display.
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公开(公告)号:US20210065965A1
公开(公告)日:2021-03-04
申请号:US17096788
申请日:2020-11-12
Applicant: Apple Inc.
Inventor: Jouya Jadidian , Vaneet Pathak , Martin Schauer , Cheung-Wei Lam , Darshan R. Kasar , Christopher S. Graham , Andro Radchenko
Abstract: A shield for redirecting magnetic field generated from a plurality of transmitter coils includes a ferromagnetic structure divided into segments by a plurality of boundary regions, each segment comprises a first material having a first magnetic permeability and each boundary region comprises a second material having a second magnetic permeability lower than the first magnetic permeability, where the plurality of boundary regions are configured to resist a propagation of magnetic field from a first area of the ferromagnetic structure to a second area of the ferromagnetic structure, where the first area intercepts the magnetic field generated from at least one active transmitter coil of the plurality of transmitter coils.
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公开(公告)号:US11782668B2
公开(公告)日:2023-10-10
申请号:US17900680
申请日:2022-08-31
Applicant: Apple Inc.
Inventor: Mahmoud N. Mahmoud , Cheung-Wei Lam , Ali Foudazi , Le Wang , Qianyi Zhao , Kedi Zhang , Xingchao C. Yuan , Jon F. Housour , Gary Chung
CPC classification number: G06F3/1446 , G06F3/044 , G06F3/0412 , G06F2203/04103
Abstract: Devices for mitigating or stopping noise or surface current on a display are provided. An electronic device including a display may include a display substrate, a mid-support plate that is adjacent to the display substrate, and a lower support plate that is adjacent to the mid-support plate. A space exists between the mid-support plate and the lower support plate. The mid-support plate includes one or more electromagnetic band gap (EBG) structures formed through the mid-support plate, one or more electromagnetic band gap structures mounted onto the mid-support plate, or both. The one or more electromagnetic band gap structures may mitigate or stop surface current flow across the display.
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公开(公告)号:US11262966B2
公开(公告)日:2022-03-01
申请号:US16585238
申请日:2019-09-27
Applicant: Apple inc.
Inventor: Mahmoud N. Mahmoud , Cheung-Wei Lam , Ali Foudazi , Le Wang , Qianyi Zhao , Kedi Zhang , Xingchao C. Yuan , Jon F. Housour , Gary Chung
Abstract: Devices for mitigating or stopping noise or surface current on a display are provided. An electronic device including a display may include a display substrate, a mid-support plate that is adjacent to the display substrate, and a lower support plate that is adjacent to the mid-support plate. A space exists between the mid-support plate and the lower support plate. The mid-support plate includes one or more electromagnetic band gap (EBG) structures formed through the mid-support plate, one or more electromagnetic band gap structures mounted onto the mid-support plate, or both. The one or more electromagnetic band gap structures may mitigate or stop surface current flow across the display.
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公开(公告)号:US10855118B2
公开(公告)日:2020-12-01
申请号:US16145503
申请日:2018-09-28
Applicant: Apple Inc.
Inventor: Andro Radchenko , Vaneet Pathak , Martin Schauer , Cheung-Wei Lam , Rahul A. Sabnani
Abstract: Wireless power transmitting devices according to embodiments of the present technology may include a contact surface configured to support one or more wireless power receiving devices. The wireless power transmitting devices may include a plurality of coils. The wireless power transmitting devices may also include a shield positioned between the plurality of coils and the contact surface. The shield may include one or more shield members, each shield member axially aligned with a separate coil of the plurality of coils, and may include a multilayer structure exhibiting various conductivities.
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公开(公告)号:US10804584B1
公开(公告)日:2020-10-13
申请号:US16356878
申请日:2019-03-18
Applicant: Apple Inc.
Inventor: Ali Foudazi , Cheung-Wei Lam , Mahmoud N. Mahmoud
Abstract: Systems, methods, and devices for diverting surface current on a display panel support plate are provided. An electronic transceiver device including a display panel may include a display back plate and a support plate, such that the support plate is disposed beneath the display back plate. The support plate may include an array of slots etched into the support plate, such that the array of slots may be used and positioned to divert an electromagnetic field on the support plate to redirect propagation of the surface current towards ground pins located on the display panel housing.
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公开(公告)号:US10256036B2
公开(公告)日:2019-04-09
申请号:US15405027
申请日:2017-01-12
Applicant: Apple Inc.
Inventor: Paul A. Martinez , Ming Y. Tsai , Federico P. Centola , Martin Schauer , Cheung-Wei Lam , Jason C. Sauers
Abstract: A system includes a circuit board, an inductor including windings mounted on the circuit board, and a plurality of magnetic field containment devices. Each magnetic field containment device includes an independent electrical circuit that is not directly electrically connected via a conductor to any other magnetic field containment device. Each magnetic field containment device also includes a material of a certain relative permeability. Each magnetic field containment device at least partially surrounds the inductor and, in operation, at least partially contains a magnetic B-Field generated by electrical current in the windings of the inductor. The plurality of magnetic field containment devices, in operation, enables a certain saturation current in the inductor.
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公开(公告)号:US11799329B2
公开(公告)日:2023-10-24
申请号:US17096788
申请日:2020-11-12
Applicant: Apple Inc.
Inventor: Jouya Jadidian , Vaneet Pathak , Martin Schauer , Cheung-Wei Lam , Darshan R. Kasar , Christopher S. Graham , Andro Radchenko
IPC: B60L53/63 , B60L53/67 , B60L7/00 , H02J50/70 , H01F27/28 , H02J50/10 , H01F38/14 , H01F27/36 , H02J50/40
CPC classification number: H02J50/70 , H01F27/2885 , H01F27/36 , H01F27/366 , H01F38/14 , H02J50/10 , H02J50/402
Abstract: A shield for redirecting magnetic field generated from a plurality of transmitter coils includes a ferromagnetic structure divided into segments by a plurality of boundary regions, each segment comprises a first material having a first magnetic permeability and each boundary region comprises a second material having a second magnetic permeability lower than the first magnetic permeability, where the plurality of boundary regions are configured to resist a propagation of magnetic field from a first area of the ferromagnetic structure to a second area of the ferromagnetic structure, where the first area intercepts the magnetic field generated from at least one active transmitter coil of the plurality of transmitter coils.
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公开(公告)号:US20210110969A1
公开(公告)日:2021-04-15
申请号:US17102903
申请日:2020-11-24
Applicant: Apple Inc.
Inventor: Andro Radchenko , Vaneet Pathak , Martin Schauer , Cheung-Wei Lam , Rahul A. Sabnani
Abstract: Wireless power transmitting devices according to embodiments of the present technology may include a contact surface configured to support one or more wireless power receiving devices. The wireless power transmitting devices may include a plurality of coils. The wireless power transmitting devices may also include a shield positioned between the plurality of coils and the contact surface. The shield may include one or more shield members, each shield member axially aligned with a separate coil of the plurality of coils, and may include a multilayer structure exhibiting various conductivities.
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公开(公告)号:US20210096804A1
公开(公告)日:2021-04-01
申请号:US16585238
申请日:2019-09-27
Applicant: Apple Inc.
Inventor: Mahmoud N. Mahmoud , Cheung-Wei Lam , Ali Foudazi , Le Wang , Qianyi Zhao , Kedi Zhang , Xingchao C. Yuan , Jon F. Housour , Gary Chung
Abstract: Devices for mitigating or stopping noise or surface current on a display are provided. An electronic device including a display may include a display substrate, a mid-support plate that is adjacent to the display substrate, and a lower support plate that is adjacent to the mid-support plate. A space exists between the mid-support plate and the lower support plate. The mid-support plate includes one or more electromagnetic band gap (EBG) structures formed through the mid-support plate, one or more electromagnetic band gap structures mounted onto the mid-support plate, or both. The one or more electromagnetic band gap structures may mitigate or stop surface current flow across the display.
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