公开(公告)号：US12178018B2

公开(公告)日：2024-12-24

申请号：US18097158

申请日：2023-01-13

Applicant: GETAC TECHNOLOGY CORPORATION

Inventor： Yin-Cheng Tsai

IPC: H05K7/20 ,  G06F1/20 ,  G06K19/07 ,  H01Q1/02 ,  H04B1/00 ,  H04B1/16 ,  H04B5/72 ,  H04B5/73 ,  H05K1/02

Abstract: A back cover heat dissipation structure of a laptop includes a radio frequency tag module, a back cover, and a metal foil. The radio frequency tag module includes a circuit board with a component region and an antenna region. The component region and the antenna region are disposed on a bottom side and a top side of the circuit board, respectively. The back cover includes a plating region and a receiving chamber. The receiving chamber receives the radio frequency tag module. The top side of the circuit board is attached to the bottom of the receiving chamber. The metal foil not only covers the bottom side of the circuit board but also extends to cover the plating region. Therefore, not only is heat dissipation achieved, the impedance of components on the circuit board can also be adjusted to optimize the sensing capability of the radio frequency tag module.

公开(公告)号：US12105142B2

公开(公告)日：2024-10-01

申请号：US17659012

申请日：2022-04-13

Applicant: Realtek Semiconductor Corporation

Inventor： Min-Hsu Tsai ,  Ruey-Beei Wu

IPC: G01V3/10 ,  G01R31/317 ,  H01Q7/00 ,  H04B5/73

CPC classification number: G01R31/31702 ,  H01Q7/00 ,  H04B5/73

Abstract: The present disclosure provides a method and system for creating dipole moment model. The method is applied to a tested circuit and includes: performing a near-field measurement on the tested circuit, to obtain a near-field electric field and a near-field magnetic field related to the tested circuit; performing a two-dimensional divergence calculation on the near-field electric field and the near-field magnetic field, to obtain a near-field electric divergence field and a near-field magnetic divergence field; performing a convolution calculation on the near-field electric divergence field and the near-field magnetic divergence field with a digital filter; and building a dipole moment matrix equivalent to the tested circuit according to a result of the convolution calculation.

公开(公告)号：US20240267086A1

公开(公告)日：2024-08-08

申请号：US18424836

申请日：2024-01-28

Applicant: SMK Corporation

Inventor： Toshio HAIJIMA

IPC: H04B5/79 ,  H04B5/73 ,  H04B5/77

CPC classification number: H04B5/79 ,  H04B5/73 ,  H04B5/77

Abstract: The wireless power-supply communication system includes a beacon device having a WPT power receiver and a battery chargeable via the WPT power receiver and configured to output information in every lapse of a preset standby period, and a power-transmission reception apparatus incorporated into or communicably connected to a host terminal and configured to wirelessly transfer power to the device and receive the information transmitted from the device. A wireless communication unit on the power-transmission reception apparatus side has a power-transmission reception side MCU that fluctuates the wireless power transfer to the device side, and a wireless communication unit on the device side has a power-reception transmission side MCU that determines fluctuation in the wireless power transfer and controls the device to perform predetermined operation according to a determination result.

公开(公告)号：US12130980B2

公开(公告)日：2024-10-29

申请号：US18197027

申请日：2023-05-12

Applicant: SYNAPTICS INCORPORATED

Inventor： Wei Ding

IPC: G06F3/01 ,  G06F3/0354 ,  G06F3/041 ,  G06F3/04883 ,  H04B5/73

CPC classification number: G06F3/04164 ,  G06F3/03547 ,  G06F3/04883 ,  H04B5/73

Abstract: An input device a touchpad, an near field communication (NFC) controller, and an antenna electrically interfaced with the NFC controller. The antenna includes an antenna rod. The antenna rod is straight and disposed outside a perimeter of the touchpad.

公开(公告)号：US20240330616A1

公开(公告)日：2024-10-03

申请号：US18395378

申请日：2023-12-22

Applicant: 3A LOGICS Co., LTD.

Inventor： Sung Wan KIM ,  Pyeong Han LEE ,  Kwang Beom PARK ,  Sung Hun CHUN ,  Chang Ho RYU

IPC: G06K7/10 ,  G05F1/56 ,  G06K19/07 ,  H04B5/73 ,  H04B5/79

CPC classification number: G06K7/10297 ,  G05F1/56 ,  G06K19/0723 ,  H04B5/73 ,  H04B5/79

Abstract: A near field communication (NFC) device includes a DC power supply configured to output a DC voltage, an NFC interface configured to generate a control signal in response to an NFC signal, and a voltage supply control circuit configured to supply the DC voltage to an electronic circuit in response to the control signal and maintain supply of the DC voltage to the electronic circuit in response to a voltage maintaining signal generated by the electronic circuit powered on by the DC voltage.

公开(公告)号：US12095171B2

公开(公告)日：2024-09-17

申请号：US18303321

申请日：2023-04-19

Applicant: Analog Devices International Unlimited Company

Inventor： Ahmed I. Khalil ,  Mohamed A. Abdelsalam

IPC: H01Q3/26 ,  H01Q3/34 ,  H01Q21/06 ,  H01Q21/22 ,  H04B5/73 ,  H04B17/12

CPC classification number: H01Q3/267 ,  H01Q3/34 ,  H01Q21/22 ,  H04B5/73 ,  H04B17/12 ,  H01Q21/061

Abstract: Aspects of this disclosure relate to an array calibration system and method using probes disposed between antenna elements. In certain embodiments, the calibration is performed by measuring near-field relative phase and amplitude measurements of the antenna elements and using such relative measurements to adjust the amplitude and phase of the transceivers connected to the antenna elements. In some embodiments, each antenna element within a set of antenna elements transmits a signal that is received by a single probe, and the received signals are assessed to determine relative phase or amplitude measurements. In some embodiments, a single probe transmits a signal that is received by each antenna element within a set of antenna elements, and the received signals are assessed to determine relative phase and amplitude measurements.

公开(公告)号：US12081288B2

公开(公告)日：2024-09-03

申请号：US18454729

申请日：2023-08-23

Applicant: Dexcom, Inc.

Inventor： Thomas Miller ,  Mark Dervaes ,  Phong Lieu ,  Peter C. Simpson ,  Shawn Larvenz ,  Jacob S. Leach ,  Sebastian Bohm

IPC: H04B5/72 ,  A61B5/145 ,  A61B5/1486 ,  A61B5/1495 ,  G01N27/327 ,  H04B5/48 ,  H04B5/73 ,  H04W4/80 ,  H04W12/06 ,  H04W52/02 ,  H04W76/14

CPC classification number: H04B5/72 ,  A61B5/14532 ,  A61B5/1486 ,  A61B5/1495 ,  G01N27/3271 ,  H04B5/73 ,  H04W4/80 ,  H04W12/06 ,  H04W12/068 ,  H04W52/0229 ,  H04W76/14 ,  H04B5/48 ,  Y02D30/70

Abstract: Systems and methods for processing, transmitting and displaying data received from an analyte sensor, such as a glucose sensor, are disclosed. In an embodiment, a method for transmitting data between a first communication device associated with an analyte sensor and a second communication device configured to provide user access to sensor-related information comprises: activating a transceiver of a first communication device associated with an analyte sensor at a first time; and establishing a two-way communication channel with the second communication device; wherein the activating comprises waking the transceiver from a low power sleep mode using a forced wakeup from the second communication device.

公开(公告)号：US20240283487A1

公开(公告)日：2024-08-22

申请号：US18582360

申请日：2024-02-20

Applicant: Tektronix, Inc.

Inventor： P. E. Ramesh ,  Praharsha P Sirsi

IPC: H04B5/73 ,  H04B5/43

CPC classification number: H04B5/73 ,  H04B5/43

Abstract: A test and measurement system includes a radio frequency antenna structured to receive a wireless carrier signal generated by an NFC vicinity coupling device and to receive load-modulated wireless carrier signals generated by one or more vicinity integrated circuit cards in response to the wireless carrier signal, and a response detector structured to determine if any load-modulated wireless carrier signals generated by one or more vicinity integrated circuit cards were received by the antenna. The response detector may use cross-correlation to determine if the load-modulated wireless carrier signals are present.

公开(公告)号：US20240362617A1

公开(公告)日：2024-10-31

申请号：US18766540

申请日：2024-07-08

Applicant: Block Inc.

Inventor： Haipeng Yan ,  Emad Bidari ,  Bertram Leesti ,  Afshin Rezayee

IPC: G06Q20/32 ,  H04B5/24 ,  H04B5/48 ,  H04B5/72 ,  H04B5/73

CPC classification number: G06Q20/3278 ,  H04B5/24 ,  H04B5/48 ,  H04B5/72 ,  H04B5/73

Abstract: A system for sensing a location of a near field communication (NFC) device includes an NFC reader that communicates with a remote NFC device through load modulation. The NFC reader transmits a wireless carrier signal from an antenna, and the remote NFC device modulates the carrier signal by changing its internal impedance in order to transmit data to the NFC reader. The NFC reader has at least one antenna for receiving the modulated signal. The antenna is coupled to circuitry that analyzes the signal received from the remote NFC device to determine a location of the remote NFC device relative to the NFC reader. The circuitry then selects a transmit antenna from a plurality of transmit antennas in the NFC reader, based on the determined location, to communicate with the remote NFC device.

公开(公告)号：US12119893B2

公开(公告)日：2024-10-15

申请号：US17653136

申请日：2022-03-02

Applicant: NXP B.V.

Inventor： Thomas Spiss ,  Markus Wobak ,  Abu Syed Firoz Ismail

IPC: H04B5/00 ,  H04B5/72 ,  H04B5/73 ,  H04B5/77

CPC classification number: H04B5/77 ,  H04B5/72 ,  H04B5/73

Abstract: In one embodiment, a near field communication (NFC) device is provided, comprising: a communication unit configured to be communicatively coupled to an NFC reader; a processing unit configured to use a plurality of emulated cards for executing one or more applications; a profile determination unit configured to determine a polling profile of said NFC reader, wherein the polling profile represents a sequence of predefined radio frequency (RF) transmission events, and wherein the profile determination unit is configured to determine said polling profile by comparing a detected sequence of RF transmission events with one or more predetermined sequences; a card selection unit configured to select a specific one of said emulated cards for use by the processing unit in dependence on the polling profile determined by the profile determination unit. In another embodiment, a corresponding method of operating an NFC device is conceived. In another embodiment, a computer program is provided for carrying out a method of the kind set forth.