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公开(公告)号：US20230336211A1
公开(公告)日：2023-10-19
申请号：US18341538
申请日：2023-06-26
Applicant: Apple Inc.
Inventor： Jeffrey D. Louis , Zaid A. AbuKhalaf
Abstract: A wireless power system has a wireless power transmitting device and a wireless power receiving device. The devices in the wireless power system may communicate using in-band communication. The wireless power transmitting device may transmit data to the wireless power receiving device using frequency-shift keying (FSK) modulation. The wireless power receiving device may transmit data to the wireless power transmitting device using amplitude-shift keying (ASK) modulation. While transmitting data to the wireless power receiving device using FSK modulation, the wireless power transmitting device may monitor for ASK modulation from the wireless power receiving device. In response to detecting the ASK modulation from the wireless power receiving device, the wireless power transmitting device may abort the FSK data transmission and process the detected ASK modulation to receive data from the wireless power receiving device.
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公开(公告)号：US11791660B2
公开(公告)日：2023-10-17
申请号：US17674208
申请日：2022-02-17
Applicant: Guangdong Midea White Home Appliance Technology Innovation Center Co., Ltd. , Midea Group Co., Ltd.
Inventor： Kunren Yin , Hui Liao
CPC classification number: H02J50/12 , H04B5/0037 , H04B5/0081 , H05B6/06 , H05B6/36
Abstract: An output control device includes an output component, a first switch and a second switch. The output component includes a first output coil used for controlling, when the first circuit is turned on and the second circuit is not turned on, the first output coil to enter a heating working state, and controlling, when the first circuit is not turned on and the second circuit is turned on, the first output coil to enter a power transmission working state. The first switch is located in the first circuit and used for turning on the first circuit when being closed. The second switch is located in the second circuit and used for turning on the second circuit when being closed.
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公开(公告)号：US11784395B2
公开(公告)日：2023-10-10
申请号：US17089952
申请日：2020-11-05
Applicant: Samsung Electronics Co., Ltd.
Inventor： Hyunsoo Kim , Gaeun Lee , Dongil Son
CPC classification number: H01Q1/245 , H01Q1/243 , H04B5/0037 , H04B5/0081 , H04W4/80
Abstract: An electronic device is provided. The electronic device includes a housing including a front surface, a rear surface, and a side surface which at least partially surrounds a space between the front surface and the rear surface, a first antenna disposed in the space, a second antenna disposed substantially in parallel with the rear surface in the space and formed in a coil shape, a conductor spaced a predetermined distance apart from a partial region of the second antenna substantially in parallel therewith and at least partially overlapping the partial region, a sensor electrically connected to the conductor, a communication circuit electrically connected to the first antenna, and a processor electrically connected to the sensor and the communication circuit, and the processor is configured to acquire a capacitance value related to the conductor, and reduce an intensity of a signal outputted through the first antenna according to the acquired capacitance value.
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公开(公告)号：US20230318361A1
公开(公告)日：2023-10-05
申请号：US18331583
申请日：2023-06-08
Applicant: Renesas Electronics America Inc.
Inventor： Jiangjian HUANG , Hulong ZENG
CPC classification number: H02J50/12 , H04B5/0081 , H04B5/0037 , H02M7/521
Abstract: Apparatuses including multiple selectable circuit elements are described. In an example, an apparatus may include a power supply configured to output a voltage. The apparatus may further include a controller connected to the power supply and a transmission unit connected to the controller. The transmission unit may be configured to output power. The transmission unit may include comprising an inverter connected to the power supply. The inverter may include a high-side switching element. The transmission unit may further include a circuit element a circuit connected to the power supply. The circuit may be configured to select the circuit element. The circuit may include a switch connected between the inverter and the circuit element. The switch and the high-side switching element may be configured to be driven by the voltage outputted by power supply. The controller may be configured to control the power being outputted by the transmission unit.
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公开(公告)号：US20230301408A1
公开(公告)日：2023-09-28
申请号：US18197646
申请日：2023-05-15
Applicant: APPLE INC.
Inventor： Arun D. Chawan , Kurt Stiehl , Benjamin A. Cousins , Jonathan S. Aase , Yacine Azmi , Paul Choiniere , Scott W. Slabaugh
IPC: A45C11/00 , H04R5/033 , A45C13/02 , H02J50/10 , H04R1/10 , H04R1/28 , H04R1/34 , B65D25/02 , B65D43/16 , H04R1/02 , H04B1/3888 , H04B5/00 , A45C11/24 , A45C13/10 , H04R9/02 , H04R9/06 , H02J7/00 , H01R13/52 , A45C13/00
CPC classification number: A45C11/00 , A45C11/24 , A45C13/005 , A45C13/02 , A45C13/1069 , B65D25/02 , B65D43/16 , H01R13/521 , H02J7/0044 , H02J50/10 , H04B1/3888 , H04B5/0037 , H04R1/02 , H04R1/1016 , H04R1/1025 , H04R1/1041 , H04R1/1058 , H04R1/1075 , H04R1/2826 , H04R1/345 , H04R5/033 , H04R9/025 , H04R9/06 , A45C2011/001 , A45C2013/026 , H02J7/00034 , H04B1/385 , H04R2420/07 , H04R2460/09 , H04R2460/17
Abstract: An earbud includes a housing that includes a driver assembly positioned within the housing forming a front volume in front of the driver and a back volume behind the driver. An acoustic insert is positioned behind the driver assembly and attached to an interior surface of the housing such that it forms a bass channel that is routed from the back volume to a vent in the housing.
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公开(公告)号：US20230297126A1
公开(公告)日：2023-09-21
申请号：US18119535
申请日：2023-03-09
Inventor： Alexandre TRAMONI , Florent SIBILLE , Patrick ARNOULD
CPC classification number: G05F1/46 , H04B5/0037
Abstract: An electronic device includes a near-field communication module and a powering circuit for delivering a power supply voltage to the near-field communication module. When the near-field communication module is in a low power mode, the powering circuit is configured for an operational mode where it is periodically started to provide the power supply voltage.
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公开(公告)号：US11764832B2
公开(公告)日：2023-09-19
申请号：US17550915
申请日：2021-12-14
Applicant: University of Maryland, College Park , Wesleyan University
Inventor： Lei Chen , Steven Mark Anlage , Tsampikos Kottos
CPC classification number: H04B5/0037 , H02J50/10 , H02J50/20
Abstract: Systems, methods, and media for wireless power transfer are provided. In some embodiments, a system for wireless power transfer comprises: a processor communicatively coupled with a tuning element and a plurality of ports in an enclosure, the processor configured to cause the ports to generate electromagnetic radiation at a first frequency, set the tuning element to a first setting, acquire electromagnetic response from the ports, determine an S-matrix using the electromagnetic response, determine an eigenvalue of the S-matrix, repeat these steps (changing the first frequency and/or first setting) at least until the determined eigenvalue is approximately zero, determine a resolved electromagnetic radiation frequency and a resolved tuning element setting having the approximately zero eigenvalue, determine an eigenvector associated with the resolved electromagnetic radiation frequency and resolved tuning element setting, and cause the ports to generate the electromagnetic radiation at the resolved frequency with phase and amplitude determined from the eigenvector.
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公开(公告)号：US11764619B2
公开(公告)日：2023-09-19
申请号：US17808535
申请日：2022-06-23
Applicant: Delta Electronics (Shanghai) Co., Ltd.
Inventor： Bin Li , Shengyi Yang , Yayu Li
CPC classification number: H02J50/60 , H02J50/10 , H04B5/0037
Abstract: The disclosure provides a method for supplying power to a power receiving device, comprising performing a wireless charging function comprising a first detection operation for transmitting a detection signal to detect the power receiving device; and a wireless communication function comprising a second detection operation for detecting a wireless communication tag; wherein the first detection operation comprises periodically transmitting a first group of detection signals and a second group of detection signals each comprising a plurality of detection signals, there is no other detection signal transmitted between transmission of the first group of detection signals and transmission of the second group of detection signals, and the second detection operation is performed between transmission of the first group of detection signals and transmission of the second group of detection signals. The disclosure further provides a wireless charging device for performing the wireless charging method.
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公开(公告)号：US11750039B2
公开(公告)日：2023-09-05
申请号：US17643919
申请日：2021-12-13
Applicant: KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY , UNIVERSITY-INDUSTRY COOPERATION GROUP OF KYUNG HEE UNIVERSITY
Inventor： Seung Young Ahn , Bom Son Lee , Jong Wook Kim , Bum Jin Park , Dong Ryul Park , Sung Ryul Huh
CPC classification number: H02J50/40 , H02J50/10 , H02J50/12 , H04B5/0037 , H04B5/0081
Abstract: Disclosed a wireless power transfer system configured to selectively drive at least one transmitting coil among transmitting coils that are included in a transmitter; and an operation method of the wireless power transfer system, and more particularly, to a technology of verifying a coupling coefficient between each of transmitting coils and a receiving coil when the receiving coil is located on the transmitting coils and selectively driving at least one transmitting coil among the transmitting coils based on the verified coupling coefficient. According to an embodiment of the present disclosure, the wireless power transfer system includes a transmitter including the transmitting coils; a receiver including a receiving coil configured to receive wireless power from at least one transmitting coil among the transmitting coils; and a controller configured to verify a coupling coefficient between each of the transmitting coil and the receiving coil and selectively drive the at least one transmitting coil based on the verified coupling coefficient.
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公开(公告)号：US11750035B2
公开(公告)日：2023-09-05
申请号：US17379029
申请日：2021-07-19
Applicant: Shenzhen Qitian Taiyi Technology Co., Ltd.
Inventor： Yitao Xing
CPC classification number: H02J50/12 , H02J7/02 , H02J50/70 , H02J50/80 , H02M1/0064 , H02M1/44 , H04B5/0037 , H04B5/0087 , H04B15/02
Abstract: A wireless power transfer device with EMI suppression includes a power conversion circuit board, a wireless power transfer coil group assembly and an eddy current damper (ECD) with a stable potential. The ECD is close to the wireless power transfer coil group assembly and is connected to a low-alternating current (AC) impedance direct current (DC) plane of the power conversion circuit board through a conductor.
