Arrangement and method for testing a 4.5G or a 5G base station

    公开(公告)号:US11879922B2

    公开(公告)日:2024-01-23

    申请号:US17284251

    申请日:2019-10-03

    申请人: Orbis Systems Oy

    摘要: The present invention discloses an antenna arrangement for 4.5G or 5G base station testing purposes. The antenna elements are placed in concentric rings and in a star-shaped arrangement around a center spot. All antenna elements within the same ring are controlled by the same amplitude and phase control signal. The test system processor also selects dedicated rings into use and switches the rest of the rings off. The ring spacing, i.e. the mutual antenna element distance along the same radial line will be determined based on highest frequency within the desired wide frequency band. A bowtie dipole type of antenna can be used. The antenna elements can be fixed on a printed circuit board, and thus, they remain mechanically stationary.

    MODULAR WIRELESS CHARGING TRANSMITTER ASSEMBLY SYSTEM

    公开(公告)号:US20240022115A1

    公开(公告)日:2024-01-18

    申请号:US18374795

    申请日:2023-09-29

    发明人: James Cook

    摘要: An electronics module is configured to provide power to one of a plurality of different types of coil modules utilized for wireless charging. The electronics module includes an input power interface configured to receive direct current (DC) power, a DC-to-AC converter circuity configured to convert the DC power to alternating current (AC) power, and an output power interface having a first set of output pins and at least a second set of output pins configured to interface with each of the plurality of different types of coil modules, wherein AC power is selectively provided to the first set of output pins, or both the first and second set of output pins based on a type of coil module connected to the electronics module.

    SYSTEM TO STORE AND UPDATE CREDENTIALS ON A PHYSICAL ACCESS DEVICES AND NFC TAG USING WIRELESS MESH NETWORKS AND METHOD THEREOF

    公开(公告)号:US20240015022A1

    公开(公告)日:2024-01-11

    申请号:US18037846

    申请日:2021-11-19

    申请人: SPINTLY INC.

    IPC分类号: H04L9/32 H04L9/08 H04B5/00

    摘要: A system (100) for storing and validating credentials comprising: access devices (104) wirelessly coupled to one another, wherein the access devices (104) comprises memories (122) such that the memories (122) are configured to store user credential information derived from a unique user identifier associated with each user registered to the access device; a server (108) coupled to the access devices (104), and configured to: store a mapping between base keys and unique serial numbers associated with Near Field Communication (NFC) tags (106); and provide each base key to each access device when each access device is registered with the system (100), wherein an access is granted to a NFC tag based on (i) an identification and fetching of the user credential information from a memory of an access device based on the unique user identifier and (ii) an authentication of a base key associated with the NFC tag.

    Wireless Power Transfer With In-Band Virtualized Wired Communications

    公开(公告)号:US20240014857A1

    公开(公告)日:2024-01-11

    申请号:US18298072

    申请日:2023-04-10

    申请人: NuCurrent, Inc.

    摘要: Wireless power transfer systems, disclosed, include a wireless power transmission system and a wireless power receiver system. The wireless power transmission system includes a transmitter antenna configured to couple with a receiver antenna to transmit alternating current (AC) wireless signals to the receiver antenna. Antenna coupling may be inductive and may operate in conformance to a wireless power and data transfer protocol. A transmission controller drives the transmitter antenna at an operating frequency, and either the wireless power transmission system or the wireless power receiver system may damp the wireless power transmission to create a data signal containing a serial asynchronous data signal.

    ELECTRONIC SHELF LABEL
    56.
    发明公开

    公开(公告)号:US20240013682A1

    公开(公告)日:2024-01-11

    申请号:US18347380

    申请日:2023-07-05

    发明人: Yanchen LI

    IPC分类号: G09F3/20 H04B5/00

    摘要: An electronic shelf label, including: a TFT substrate integrated with an NFC coil, wherein the NFC coil is configured to realize an NFC function and is connected to an IC or an FPC to drive and control the NFC coil. In examples, the NFC function is integrated into the TFT substrate, so that the size of an FPC or a PCB can be reduced, which not only makes the electronic shelf label thinner and lighter, but also realizes the NFC function without increasing the cost of the FPC or the PCB.

    Wireless power transmitter for high fidelity communications with amplitude shift keying

    公开(公告)号:US11870510B2

    公开(公告)日:2024-01-09

    申请号:US17977447

    申请日:2022-10-31

    申请人: NuCurrent, Inc.

    摘要: Wireless power transfer systems, disclosed, include one or more circuits to facilitate high power transfer at high frequencies. Such wireless power transfer systems include a damping circuit, configured to dampen a wireless power signal such that communications fidelity is upheld at high power. The damping circuit includes at least a damping transistor that is configured to receive, from the transmitter controller, a damping signal for switching the transistor to control damping during transmission of amplitude shift keying (ASK) wireless data signals. Utilizing such systems enables wireless power transfer at high frequency, such as 13.56 MHz, at voltages over 1 Watt, while maintaining fidelity of in-band communications associated with the higher power wireless power signal.