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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：US11923702B2
公开(公告)日：2024-03-05
申请号：US17947970
申请日：2022-09-19
Applicant: Apple Inc.
Inventor： Andro Radchenko , Federico P. Centola , Vaneet Pathak
CPC classification number: H02J7/00034 , H02J50/10 , H02J50/80 , H04B5/26 , H04B5/79 , H04L67/104 , H04W4/14 , H04W76/10 , H04W84/12
Abstract: Methods and devices useful in performing magneto-inductive charging and communication in the absence of a cellular and/or internet network connection are provided. By way of example, an electronic device includes inductive charging and communication circuitry configured to receive a signal configured to induce a charging function based at least in part on an inductive coil coupled to the inductive charging and communication circuitry. Inducing the charging function includes charging an energy storage component of the electronic device. The inductive charging and communication circuitry is also configured receive an indication to switch from the charging function to a communication function. The communication function is based at least in part on the inductive coil. The inductive charging and communication circuitry is further configured establish a communication link between the electronic device using the inductive coil to transmit and receive communication signals.
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Patent Agency Ranking
公开(公告)号：US20210099022A1
公开(公告)日：2021-04-01
申请号：US17119900
申请日：2020-12-11
Applicant: Apple Inc.
Inventor： Jouya Jadidian , Martin Schauer , Andro Radchenko , Cheung-Wei Lam , Ketan Shringarpure , Vaneet Pathak
Abstract: A wireless power system uses a wireless power transmitting device to transmit wireless power to wireless power receiving devices. The wireless power transmitting device has wireless power transmitting coils that extend under a wireless charging surface. Non-power-transmitting coils and magnetic sensors may be included in the wireless power transmitting device. During wireless power transfer operations, control circuitry in the wireless power transmitting device adjusts drive signals applied to the coils to reduce ambient magnetic fields. The drive signal adjustments are made based on device type information and other information on the wireless power receiving devices and/or magnetic sensor readings from the magnetic sensors. In-phase or out-of-phase drive signals are applied to minimize ambient fields depending on device type.
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公开(公告)号：US20190199144A1
公开(公告)日：2019-06-27
申请号：US15980401
申请日：2018-05-15
Applicant: Apple Inc.
Inventor： Jouya Jadidian , Martin Schauer , Andro Radchenko , Cheung-Wei Lam , Ketan Shringarpure , Vaneet Pathak
CPC classification number: H02J50/70 , H01F27/2823 , H01F27/29 , H01F27/38 , H01F38/14 , H02J7/025 , H02J50/12
Abstract: A wireless power system uses a wireless power transmitting device to transmit wireless power to wireless power receiving devices. The wireless power transmitting device has wireless power transmitting coils that extend under a wireless charging surface. Non-power-transmitting coils and magnetic sensors may be included in the wireless power transmitting device. During wireless power transfer operations, control circuitry in the wireless power transmitting device adjusts drive signals applied to the coils to reduce ambient magnetic fields. The drive signal adjustments are made based on device type information and other information on the wireless power receiving devices and/or magnetic sensor readings from the magnetic sensors. In-phase or out-of-phase drive signals are applied to minimize ambient fields depending on device type.
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公开(公告)号：US10199172B2
公开(公告)日：2019-02-05
申请号：US15275372
申请日：2016-09-24
Applicant: Apple Inc.
Inventor： Paul A. Martinez , Jason C. Sauers , Cheung-Wei Lam , Federico P. Centola , Andro Radchenko , Martin Schauer
Abstract: Methods and devices related to fabrication and utilization of multilayer capacitors presenting coaxially arranged electrode layers. The capacitors may be self-shielded against electromagnetic interference with neighboring components. The capacitors may have reduced losses from fringing effects when compared to conventional capacitors. The coaxial capacitors may be two-terminal multilayer ceramic capacitors (MLCC). The design of the capacitors may facilitate an improved relationship between the electric and magnetic fields generated by the capacitor within the dielectric in some embodiments. In some embodiments, the placement of the terminals may lead to a cancelation of mutual inductances between the electrodes. Terminations that facilitate the coupling of the capacitor to a circuit board, as well as methods for fabrication of the capacitors are also discussed.
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公开(公告)号：US20180090970A1
公开(公告)日：2018-03-29
申请号：US15454847
申请日：2017-03-09
Applicant: Apple Inc.
Inventor： Andro Radchenko , Federico P. Centola , Vaneet Pathak
CPC classification number: H02J7/025 , H02J50/10 , H02J50/80 , H04B5/0037 , H04B5/0081 , H04L67/104 , H04W4/14 , H04W76/10 , H04W84/12
Abstract: Methods and devices useful in performing magneto-inductive charging and communication in the absence of a cellular and/or internet network connection are provided. By way of example, an electronic device includes inductive charging and communication circuitry configured to receive a signal configured to induce a charging function based at least in part on an inductive coil coupled to the inductive charging and communication circuitry. Inducing the charging function includes charging an energy storage component of the electronic device. The inductive charging and communication circuitry is also configured receive an indication to switch from the charging function to a communication function. The communication function is based at least in part on the inductive coil. The inductive charging and communication circuitry is further configured establish a communication link between the electronic device using the inductive coil to transmit and receive communication signals.
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公开(公告)号：US20170207028A1
公开(公告)日：2017-07-20
申请号：US15275372
申请日：2016-09-24
Applicant: Apple Inc.
Inventor： Paul A. Martinez , Jason C. Sauers , Cheung-Wei Lam , Federico P. Centola , Andro Radchenko , Martin Schauer
Abstract: Methods and devices related to fabrication and utilization of multilayer capacitors presenting coaxially arranged electrode layers. The capacitors may be self-shielded against electromagnetic interference with neighboring components. The capacitors may have reduced losses from fringing effects when compared to conventional capacitors. The coaxial capacitors may be two-terminal multilayer ceramic capacitors (MLCC). The design of the capacitors may facilitate an improved relationship between the electric and magnetic fields generated by the capacitor within the dielectric in some embodiments. In some embodiments, the placement of the terminals may lead to a cancelation of mutual inductances between the electrodes. Terminations that facilitate the coupling of the capacitor to a circuit board, as well as methods for fabrication of the capacitors are also discussed.
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