公开(公告)号：US20240072556A1

公开(公告)日：2024-02-29

申请号：US18241820

申请日：2023-09-01

申请人： Energous Corporation

发明人： Michael A. Leabman

IPC分类号： H02J7/00 ,  G06V40/10 ,  H02J50/20 ,  H02J50/60 ,  H02J50/80 ,  H02J50/90 ,  H04B5/00 ,  H04N7/18 ,  H04W52/28

CPC分类号： H02J7/0047 ,  G06V40/10 ,  H02J7/0029 ,  H02J50/20 ,  H02J50/60 ,  H02J50/80 ,  H02J50/90 ,  H04B5/0037 ,  H04N7/18 ,  H04W52/283 ,  H02J7/00034

摘要： Embodiments disclosed herein may generate and transmit power waves that, as result of their physical waveform characteristics (e.g., frequency, amplitude, phase, gain, direction), converge at a predetermined location in a transmission field to generate a pocket of energy. Receivers associated with an electronic device being powered by the wireless charging system, may extract energy from these pockets of energy and then convert that energy into usable electric power for the electronic device associated with a receiver. The pockets of energy may manifest as a three-dimensional field (e.g., transmission field) where energy may be harvested by a receiver positioned within or nearby the pocket of energy.

公开(公告)号：US20240030739A1

公开(公告)日：2024-01-25

申请号：US18318660

申请日：2023-05-16

申请人： Energous Corporation

发明人： Michael A. Leabman ,  Alister HOSSEINI

IPC分类号： H02J7/04 ,  H02J50/23 ,  H02J50/10 ,  H04B1/3883 ,  H04W8/00

CPC分类号： H02J7/04 ,  H02J50/23 ,  H02J50/10 ,  H04B1/3883 ,  H04W8/005 ,  H02J7/0042

摘要： Disclosed is a wireless power transmitter for wirelessly delivering power to a receiver device, the wireless power transmitter including: a plurality of unit cells configured to radiate one or more radio frequency (RF) power transmission waves, each unit cell in the plurality of unit cells including: (i) a metal portion having an interior perimeter that surrounds an aperture defined by the metal portion; and (ii) an antenna that is aligned with the aperture in a first dimension, the antenna being configured to radiate one or more RF power transmission waves for wirelessly charging a receiver device. The one or more RF power transmission waves leak from the wireless power transmitter at least in part through the aperture when the receiver device is positioned within a threshold distance from the unit cell.

公开(公告)号：US11817719B2

公开(公告)日：2023-11-14

申请号：US17852190

申请日：2022-06-28

申请人： Energous Corporation

发明人： Cesar A. Johnston ,  Erik Heinke ,  Daniel P. Lawless

IPC分类号： H02J50/20 ,  H02J50/00 ,  H02J50/90

CPC分类号： H02J50/20 ,  H02J50/005 ,  H02J50/90

摘要： Systems and methods for controlling and managing operation of one or more power amplifiers to optimize the performance of one or more antennas are disclosed. An example wireless-power transmission system includes a power amplifier, one or more antennas, and one or more integrated circuits. The one or more integrated circuits are configured to adjust power provided to the one or more antennas from a power amplifier and adjust a power distribution for the transmission field based, in part, on the adjusted power provided to the one or more antennas from the power amplifier such that the adjusted power provided is evenly distributed across the power distribution for the transmission field of the antenna. The even distribution of the adjusted power results in a reduced power loss at an edge of the power distribution for the transmission field of the antenna from 30% to 10%.

公开(公告)号：US20230352984A1

公开(公告)日：2023-11-02

申请号：US18308645

申请日：2023-04-27

申请人： ENERGOUS CORPORATION

发明人： Michael A. Leabman

IPC分类号： H02J50/90 ,  H02J50/40 ,  H02J50/80

CPC分类号： H02J50/402 ,  H02J50/80 ,  H02J50/90 ,  H02J50/60

摘要： Embodiments disclosed herein may generate and transmit power waves that, as result of their physical waveform characteristics (e.g., frequency, amplitude, phase, gain, direction), converge at a predetermined location in a transmission field to generate a pocket of energy. Receivers associated with an electronic device being powered by the wireless charging system, may extract energy from these pockets of energy and then convert that energy into usable electric power for the electronic device associated with a receiver. The pockets of energy may manifest as a three-dimensional field (e.g., transmission field) where energy may be harvested by a receiver positioned within or nearby the pocket of energy.

公开(公告)号：US11799324B2

公开(公告)日：2023-10-24

申请号：US17228621

申请日：2021-04-12

申请人： Energous Corporation

发明人： Sohini Sengupta ,  Yunhong Liu ,  Tuomo Katajamaki

IPC分类号： H02J7/00 ,  H02J50/20 ,  H02J7/02 ,  H02J50/40 ,  H01Q9/42 ,  H01Q9/04 ,  H01Q9/16

CPC分类号： H02J50/20 ,  H02J7/0042 ,  H02J7/02 ,  H02J50/402 ,  H01Q9/0407 ,  H01Q9/16 ,  H01Q9/42

摘要： An example near-field charging system includes a housing that includes a charging surface and at least one other surface, a radiating antenna, and a non-radiating element positioned above the radiating antenna within the housing such that the non-radiating element is closer to the charging surface than the radiating antenna. The radiating antenna produces a first electromagnetic-field distribution that is received by a receiver, the first electromagnetic-field provides usable power when the receiver is placed at any position on a first portion of the charging surface. The non-radiating element changes a distribution characteristic of the first electromagnetic-field distribution to produce a second electromagnetic-field distribution, the second electromagnetic-field distribution providing usable power to the receiver when the receiver is placed at any position across a second portion of the charging surface of the housing, and the second portion is at least 10% percent greater than the first portion.

公开(公告)号：US11777342B2

公开(公告)日：2023-10-03

申请号：US17176334

申请日：2021-02-16

申请人： Energous Corporation

发明人： Michael A. Leabman

IPC分类号： H02J7/00 ,  H02J7/14 ,  H02J50/12 ,  H03F1/32 ,  H03F3/217 ,  H03F3/193 ,  H02J50/20 ,  H02M3/335 ,  H02M7/217

CPC分类号： H02J50/12 ,  H02J7/00712 ,  H02J50/20 ,  H02M3/33592 ,  H03F1/3223 ,  H03F3/193 ,  H03F3/2176 ,  H02M7/217 ,  Y02B70/10

摘要： Embodiments disclosed herein describe a wireless power receiver including a synchronous transistor rectifier using a Class-E or a Class-F amplifier. The wireless power receiver includes at least one radio frequency (RF) antenna configured to generate an alternating current (AC) waveform from received RF waves. The wireless power receiver further includes a power line configured to carry a first signal based on the AC current generated by the least one RF antenna, and a tap-line coupled to the power line, the tap-line being configured to carry a second signal. The second signal is based on the AC current generated by the least one RF antenna and distinct from the first signal. The wireless power receiver also includes a transistor coupled to at least the power line and the tap-line. The transistor is configured to provide a direct current (DC) waveform to a load based on the first and second signals.

公开(公告)号：US11777328B2

公开(公告)日：2023-10-03

申请号：US17020568

申请日：2020-09-14

申请人： Energous Corporation

发明人： Michael A. Leabman

IPC分类号： H02J7/00 ,  H02J50/20 ,  H02J50/60 ,  H04N7/18 ,  H04B5/00 ,  H02J50/80 ,  H02J50/90 ,  H04W52/28 ,  G06V40/10

CPC分类号： H02J7/0047 ,  G06V40/10 ,  H02J7/0029 ,  H02J50/20 ,  H02J50/60 ,  H02J50/80 ,  H02J50/90 ,  H04B5/0037 ,  H04N7/18 ,  H04W52/283 ,  H02J7/00034

摘要： Embodiments disclosed herein may generate and transmit power waves that, as result of their physical waveform characteristics (e.g., frequency, amplitude, phase, gain, direction), converge at a predetermined location in a transmission field to generate a pocket of energy. Receivers associated with an electronic device being powered by the wireless charging system, may extract energy from these pockets of energy and then convert that energy into usable electric power for the electronic device associated with a receiver. The pockets of energy may manifest as a three-dimensional field (e.g., transmission field) where energy may be harvested by a receiver positioned within or nearby the pocket of energy.

公开(公告)号：US11710321B2

公开(公告)日：2023-07-25

申请号：US17368709

申请日：2021-07-06

申请人： Energous Corporation

发明人： Douglas Bell ,  Michael A. Leabman

IPC分类号： G06V20/52 ,  H04B5/00 ,  H02J50/90 ,  H02J50/80 ,  H02J50/60 ,  H02J50/20 ,  H02J7/00 ,  G06T7/60 ,  H04N5/04 ,  H04N7/18 ,  G06V10/42 ,  G06V30/224

CPC分类号： G06V20/52 ,  G06T7/60 ,  G06V10/42 ,  G06V30/224 ,  H02J7/00714 ,  H02J50/20 ,  H02J50/60 ,  H02J50/80 ,  H02J50/90 ,  H04B5/0037 ,  H04N5/04 ,  H04N7/18 ,  H02J7/00034

摘要： Systems and methods for wireless power transmission based on object identification are provided. A radio frequency wireless power transmitter is in communication with a video camera for capturing image data (e.g., a visual pattern) of at least a portion of a transmission field of the radio frequency wireless power transmitter. A processor of the radio frequency wireless power transmitter is configured to identify an object when the visual pattern matches a pre-stored visual pattern representing the object, and control transmission of one or more radio frequency power transmission waves to a receiving electronic device based on a location of the identified object, wherein the receiving electronic device uses the one or more radio frequency power transmission waves to power or to charge the receiving electronic device.

公开(公告)号：US11689045B2

公开(公告)日：2023-06-27

申请号：US17210398

申请日：2021-03-23

申请人： Energous Corporation

发明人： Michael A. Leabman ,  Alister Hosseini

IPC分类号： H02J7/04 ,  H02J50/23 ,  H02J50/10 ,  H04B1/3883 ,  H04W8/00 ,  H02J7/00

CPC分类号： H02J7/04 ,  H02J50/10 ,  H02J50/23 ,  H04B1/3883 ,  H04W8/005 ,  H02J7/0013 ,  H02J7/0042 ,  H02J2310/22

摘要： Disclosed is a wireless power transmitter for wirelessly delivering power to a receiver device, the wireless power transmitter including: a plurality of unit cells configured to radiate one or more radio frequency (RF) power transmission waves, each unit cell in the plurality of unit cells including: (i) a metal portion having an interior perimeter that surrounds an aperture defined by the metal portion; and (ii) an antenna that is aligned with the aperture in a first dimension, the antenna being configured to radiate one or more RF power transmission waves for wirelessly charging a receiver device. The one or more RF power transmission waves leak from the wireless power transmitter at least in part through the aperture when the receiver device is positioned within a threshold distance from the unit cell.

公开(公告)号：US20230060721A1

公开(公告)日：2023-03-02

申请号：US17895033

申请日：2022-08-24

申请人： Energous Corporation

发明人： Amir SARAJEDINI

IPC分类号： H04B17/12 ,  H04B17/24 ,  H02J50/80 ,  H02J50/20 ,  H02J50/40

摘要： A method includes receiving a wireless communication signal indicating that a receiver is within a wireless-power-transmission range of a transmitter. In response to the receiving, the method further includes transmitting a plurality of radio frequency (RF) test signals using at least two test phases for a respective antenna. The method further includes receiving information identifying a first amount of power delivered to the receiver by a first RF test signal transmitted at a first of the at least two test phases, receiving information identifying a second amount of power delivered to the receiver by a second RF test signal transmitted at a second of the at least two test phases, and determining, based on the first and second amounts of power, an optimal phase for the respective antenna.