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公开(公告)号：US12040850B2
公开(公告)日：2024-07-16
申请号：US17846852
申请日：2022-06-22
发明人： Tatsuya Hosotani , Takahiro Nagai
摘要： A near-field communication device includes a communication antenna for near-field communication formed along a plane, an interface circuit connected to the communication antenna for making a signal of the near-field communication pass through the interface circuit, a wireless communication IC connected to the interface circuit for processing the signal of the near-field communication, a power reception coil arranged along the plane to surround the communication antenna, a resonant capacitor constituting, together with the power reception coil, a power reception resonant circuit, and a rectifying and smoothing circuit connected to the power reception resonant circuit. The power reception resonant circuit resonates at a frequency of the near-field communication, and magnetic flux generated in the vicinity of the power reception coil by a resonant current flowing through the power reception resonant circuit interlinks with the communication antenna.
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公开(公告)号：US20240235268A1
公开(公告)日：2024-07-11
申请号：US18538281
申请日：2023-12-13
CPC分类号： H02J50/12 , H01F38/14 , H02J50/005 , H02J50/40 , H04B5/263 , H04B5/79 , H01F2038/143 , H02J2310/23
摘要： A far field magnetic power transfer (FFMPT) system, device, and method that enables safer and farther power transmission through magnetic fields, achieving more useful and greater power transfer distances compared against magnetic induction and radiative power transfer. The FFMPT systems, devices, and methods may be used to deliver power through matter such as wood, walls, and biological material such as a patient's body. The FFMPT systems, devices, and methods can be used for neuronal modulation, endovascular catheter guidance, wireless and radiation free powering of implantable devices, and other uses.
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公开(公告)号：US20240223024A1
公开(公告)日：2024-07-04
申请号：US18487473
申请日：2023-10-16
申请人： NuCurrent, Inc.
发明人： Alberto Peralta , Michael Katz , Md. Nazmul Alam
摘要： A wireless receiver system includes a receiver antenna, a sensor, a demodulation circuit, and a receiver controller. The sensor is configured to detect electrical information associated with AC wireless signals, the electrical information including, at least, a voltage of the AC wireless signals. The demodulation circuit is configured to receive the electrical information from the at least one sensor, detect a change in the electrical information, determine if the change in the electrical information meets or exceeds one of a rise threshold or a fall threshold, if the change exceeds one of the rise threshold or the fall threshold, generate an alert, and output a plurality of data alerts. The receiver controller is configured to receive the plurality of data alerts from the demodulation circuit, and decode the plurality of data alerts into the wireless data signals.
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44.发明授权公开(公告)号：US12014867B2
公开(公告)日：2024-06-18
申请号：US17999181
申请日：2021-05-20
CPC分类号： H01F38/14 , H01F27/255 , H01F27/2804 , H01F27/2885 , H01F27/363 , H01R13/62 , H04B5/266 , H01F2027/2819 , H01F2038/143
摘要： A connection system for exchanging electrical signals includes a first symmetrical connector and a second symmetrical connector. Each symmetrical connector has at least one magnetic core provided with at least one turn. The symmetrical connectors are produced in a substrate made of insulating material so as to form a half of a coupling transformer. At least one half of the coupling transformer of each connector is arranged opposite one another so as to be able to exchange a magnetic flux. The electrical signals are emitted by the first connector in the form of a magnetic flux, and the second connector generates the electrical signals on receiving the magnetic flux.
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公开(公告)号：US11995490B2
公开(公告)日：2024-05-28
申请号：US17261369
申请日：2019-07-22
发明人： Alison Lloyd , Vitor Freitas
CPC分类号： G06K19/0723 , G06K7/0008 , H02J50/12 , H04B5/26 , H04B5/72 , H04B5/77
摘要： A smart card comprising rectification circuitry arranged to receive an alternating electrical signal from a near field RF communications antenna of the smart card, and convert it into DC electrical energy for powering an auxiliary circuit. The rectification circuitry comprises a first inductor arranged so that the alternating electrical signal flows through the first inductor and a second inductor arranged for inductive coupling with the first inductor to provide the alternating electrical signal to a near field RF communicator.
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公开(公告)号：US20240165413A1
公开(公告)日：2024-05-23
申请号：US18519687
申请日：2023-11-27
申请人： Cochlear Limited
CPC分类号： A61N1/37229 , A61N1/36038 , H01Q1/273 , H01Q5/30 , H04B5/26 , H04B5/75 , H04R25/55
摘要： Embodiments presented herein are generally directed to techniques that provide a medical device component with the ability to communicate in both the near-field and far-field via a single antenna arrangement. More specifically, a medical device component includes an electronics circuit, a coil driver, an antenna arrangement, and an isolation circuit. The isolation circuit operates to extract far-field signals received at the antenna arrangement and provide these signals to the electronics circuit. The electronics circuit is protected from near-field signals received at the antenna arrangement via the isolation circuit.
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公开(公告)号：US11979038B2
公开(公告)日：2024-05-07
申请号：US16295064
申请日：2019-03-07
申请人： Google LLC
CPC分类号： H02J7/00034 , H02J50/10 , H02J50/12 , H02J50/90 , H04B5/26 , H04B5/79 , H02J2310/22
摘要： The technology provides for a system for determining wireless charging alignment. In this regard, one or more processors may receive motion data from one or more sensors of a computing device indicating a motion of the computing device. The one or more processors may also receive charging data related to a state of an energy storage of the computing device or a state of energy transfer between a wireless charger and the computing device. Based on the motion data and the charging data, a reference vector associated with at least two charging rates may be determined. An alignment vector between the computing device and the wireless charger may then be determined based on the reference vector and the associated charging rates. Based on the alignment vector, an output may be generated guiding movement of the computing device to align with the wireless charger.
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公开(公告)号：US20240120149A1
公开(公告)日：2024-04-11
申请号：US18263608
申请日：2022-03-04
申请人： ELECTDIS AB
发明人： Laurens Swaans , Max Andersson
CPC分类号： H01F38/14 , G01K7/22 , H01F27/402 , H02J50/10 , H04B5/26 , H04B5/79 , G01K2217/00 , H01F2027/406
摘要： A method of controlling and/or evaluating the temperature of a wireless power coil (105; 205; 305) in coil unit (100; 200; 300) is provided. The method comprises providing a coil unit (100; 200; 300) comprising a wireless power coil (105; 205; 305) comprising at least two strands (112, 114; 212, 214; 312, 314), wherein at least one strand (114; 214; 314) is used for heating and at least one strand (112; 212; 312) is used for wireless power transfer, and applying a current to the least one strand (114; 214; 314) used for heating. The coil unit (100; 200; 300) is in operative communication with a processing means (18, 28, 90) configured to provide a current to the at least one strand (114; 214; 314) used for heating.
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