公开(公告)号：US20250062640A1

公开(公告)日：2025-02-20

申请号：US18721929

申请日：2023-01-03

Applicant: IDEX BIOMETRICS ASA

Inventor： Tuck Weng POON

IPC: H02J50/00 ,  H02J50/10 ,  H02J50/90

Abstract: An antenna extender includes a body having a supporting structure configured to receive a smart card, a first antenna electrically connected to a second antenna, the first antenna configured to inductively couple with a near field communication (NFC) antenna on a host device, the second antenna configured to inductively couple with an NFC antenna on the smart card.

公开(公告)号：US12224598B2

公开(公告)日：2025-02-11

申请号：US18232690

申请日：2023-08-10

Applicant: DENSO CORPORATION

Inventor： Masaya Takahashi ,  Mitsuru Shibanuma ,  Kazuyuki Kato ,  Yusei Nakayashiki ,  Eisuke Takahashi ,  Nobuhisa Yamaguchi

IPC: H02J50/12 ,  B60L53/39 ,  H02J50/40 ,  H02J50/90

Abstract: A wireless power transmission system is provided which wirelessly transfer electric power from a power transmitter to a power receiver. The wireless power transmission system works to set a capacitance of a primary capacitor of a primary resonant circuit to undergo resonance with a self-inductance of a primary coil at an angular frequency that is an operating frequency. A tertiary capacitor of a tertiary resonant circuit has a capacitance set to undergo resonance with a self-inductance of a tertiary coil. A secondary capacitor of a secondary resonant circuit has a capacitance set to reduce a reactive component of ac power arising from self-inductances and mutual inductances of the primary coil, the secondary coil, and the tertiary coil.

公开(公告)号：US20250047141A1

公开(公告)日：2025-02-06

申请号：US18924676

申请日：2024-10-23

Applicant: Kyndryl, Inc.

Inventor： Cesar Augusto Rodriguez Bravo ,  David Alonso Campos Batista ,  Sarbajit K. Rakshit

IPC: H02J50/50 ,  H02J50/10 ,  H02J50/80 ,  H02J50/90

Abstract: Control system for facilitating wireless charging of an electronic device is provided, which identifies presence of multiple electronic devices within an environment, with the multiple electronic devices including a self-propelled power relay device with wireless charging capability. Control system processing determines that an electronic device of the multiple electronic devices requires wireless charging, and based on the determining, deploys the self-propelled power relay device to move to an area of the environment within a charging range of the electronic device to facilitate wireless charging of the electronic device via the self-propelled power relay device.

公开(公告)号：US12218525B2

公开(公告)日：2025-02-04

申请号：US18223958

申请日：2023-07-19

Applicant: LG INNOTEK CO., LTD.

Inventor： Jae Hee Park

IPC: H02J50/60 ,  H02J7/02 ,  H02J50/10 ,  H02J50/12 ,  H02J50/20 ,  H02J50/40 ,  H02J50/80 ,  H02J50/90

Abstract: A power transmission method for a wireless power transmitter, the power transmission method including receiving, from a wireless power receiver, a foreign object detection (FOD) status packet including information on a reference quality factor or a reference peak frequency, and at least one of a signal strength packet, an end power transfer packet, a power control hold-off packet, a control error packet, a renegotiation packet, an eight-bit reception power packet, and a charging status packet to which a byte encoding technique is applied; determining whether a foreign object is present in a charging area of the wireless power transmitter based on the FOD status packet; and generating a foreign object detection indicator indicating whether the foreign object is present in the charging area of the wireless power transmitter based on a result of the determination and transmitting the generated foreign object detection indicator to the wireless power receiver, wherein the byte encoding technique is a technique of inserting a start bit, a stop bit, and a parity bit into an encoded binary bit stream of a packet having a length of 8 bits.

公开(公告)号：US12213808B2

公开(公告)日：2025-02-04

申请号：US18229136

申请日：2023-08-01

Applicant: XENTER, INC.

Inventor： Richard J. Linder ,  Edwin Meade Maynard ,  Scott Kenneth Marland ,  Cory Rex Estes ,  Steven Matthew Quist ,  Nathan J. Knighton

IPC: A61B5/05 ,  A61B5/00 ,  A61B5/0215 ,  A61B5/07 ,  A61M25/09 ,  H02J50/05 ,  H02J50/40 ,  H02J50/90 ,  A61B1/05 ,  A61B8/12 ,  A61M25/01

Abstract: A guidewire system includes an elongated wire configured for insertion into a luminal space, such as the vasculature, of a body. The wire is conductive and configured to conduct electrical signals. One or more sensors are coupled to a distal section of the wire and configured to send and receive the electrical signals via the wire. The wire through which the one or more sensors are coupled is the only wire through which the one or more sensors send and receive the electrical signals.

公开(公告)号：US20250038572A1

公开(公告)日：2025-01-30

申请号：US18918236

申请日：2024-10-17

Applicant: Sonos, Inc.

Inventor： Nicholas D'Amato ,  Chadwick Souza

IPC: H02J50/00 ,  H02J50/10 ,  H02J50/90 ,  H04R1/10

Abstract: Aspects of the present disclosure relate to wireless chargers for playback devices, such as portable playback devices.

公开(公告)号：US12212150B2

公开(公告)日：2025-01-28

申请号：US18090893

申请日：2022-12-29

Applicant: Hubbell Incorporated

Inventor： Sorin Mortun

IPC: H02J50/10 ,  H02J7/00 ,  H02J50/40 ,  H02J50/90

Abstract: A wall outlet inductive charger includes a base connected to a set of terminals for receiving power supply conductors. A faceplate is connected to the base. The faceplate includes a charging portion. A charger housing is connected to the base and positioned between the base and the faceplate. A charging pad including an inductive coil is positioned in the charger housing.

公开(公告)号：US20250030278A1

公开(公告)日：2025-01-23

申请号：US18355511

申请日：2023-07-20

Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION

Inventor： Su Liu ,  Jeremy R. Fox ,  Tushar Agrawal ,  Zachary A. Silverstein

IPC: H02J50/90 ,  H02J50/20 ,  H02J50/40

Abstract: Described is a method for an augmented Quality of Service (QoS) wireless charging configuration in an Internet of Things (IoT) network for managing wireless charging of devices within an area. The method can identify multiple wirelessly chargeable devices within an area and generate a spatial plan for the area with the multiple wirelessly chargeable devices. The method can further identify a position for each wirelessly chargeable device devices within the spatial plan for the area and determine priority for the identified wirelessly chargeable devices based on status information for each wirelessly chargeable device. The method can adjust a wireless charging signal pattern for the spatial plan based on the priority for the identified wirelessly chargeable devices.

公开(公告)号：US12206263B2

公开(公告)日：2025-01-21

申请号：US18257928

申请日：2021-12-17

Applicant: Marposs Societa′ Per Azioni

Inventor： Davide Castaldini ,  Alessandro Ruggeri

IPC: H02J50/90 ,  G01B7/14 ,  H02J50/12 ,  H02J50/80

Abstract: Method for contactless power transmission between a stationary part (14) and a movable part (15) and electrical power supply circuit (17) for implementing the method comprising an air-coupled transformer (19) provided with a primary resonant circuit with a primary coil (20) supported by the stationary part and a secondary resonant circuit with a secondary coil (21) facing the primary resonant circuit and supported by the movable part. The primary resonant circuit is fed with an alternating primary electrical voltage (V1) which causes a primary electrical current (I1) to circulate. The primary electrical current (I1) induces in turn in the secondary resonant circuit an alternating secondary electrical voltage (V2) which causes a secondary electrical current (I2) to circulate. An electrical variable influencing the achievement of the resonance condition is adjusted, for example the frequency (F) of the primary electrical voltage, in such a way to operate in a resonance condition. The distance (d) between the stationary part and the movable part is determined as a function of a value of such electrical variable. A contactless connection system includes the stationary and movable parts and the electrical power supply circuit.

公开(公告)号：US12206254B2

公开(公告)日：2025-01-21

申请号：US18596034

申请日：2024-03-05

Applicant: PANASONIC HOLDINGS CORPORATION

Inventor： Hiromu Matsumoto ,  Hiroshi Kanno ,  Atsushi Yamamoto

IPC: H02J50/60 ,  H01F38/14 ,  H02J5/00 ,  H02J7/00 ,  H02J50/10 ,  H02J50/12 ,  H02J50/70 ,  H02J50/80 ,  H02J50/90

Abstract: A power transmission device includes power transmission coils arranged in a line, a power transmission circuit connected to the power transmission coils, and control circuitry that switches an electrical connection between the power transmission circuit and each power transmission coil, detects a relative position between the power receiving coil and each power transmission coil, selects two or more power transmission coils adjacent to each other based on the detected relative position, and causes the power transmission circuit to supply the AC power to the selected two or more power transmission coils. In a direction perpendicular to an array direction of the power transmission coils, width Dlt of each power transmission coil is equal to or longer than width Dlr of the power receiving coil. In the array direction, width Dwt of each power transmission coil is shorter than width Dwr of the power receiving coil and satisfies 0.2≤Dwt/Dwr.