公开(公告)号：US11522578B2

公开(公告)日：2022-12-06

申请号：US17371344

申请日：2021-07-09

Applicant: STMicroelectronics Austria GmbH

Inventor： Christoph Chlestil

IPC: H04B5/00

Abstract: The present disclosure relates to a near-field communications circuit, comprising: a near-field communications controller; a matching network; and a switch, wherein the switch has one or more inputs, coupled to one or more outputs of the near-field communications controller via the matching network, and a plurality of outputs, each output being suitable for coupling the switch to a corresponding one of a plurality of near-field communications antennas.

公开(公告)号：US20220014233A1

公开(公告)日：2022-01-13

申请号：US17371344

申请日：2021-07-09

Applicant: STMicroelectronics Austria GmbH

Inventor： Christoph Chlestil

IPC: H04B5/00

Abstract: The present disclosure relates to a near-field communications circuit, comprising: a near-field communications controller; a matching network; and a switch, wherein the switch has one or more inputs, coupled to one or more outputs of the near-field communications controller via the matching network, and a plurality of outputs, each output being suitable for coupling the switch to a corresponding one of a plurality of near-field communications antennas.

公开(公告)号：US20240235274A1

公开(公告)日：2024-07-11

申请号：US18403385

申请日：2024-01-03

Applicant: STMicroelectronics (Grenoble 2) SAS ,  STMicroelectronics Austria GmbH

Inventor： Bruno Tisserand ,  Oliver Regenfelder ,  Laurent Regnier ,  Martin Rampetsreiter ,  Christoph Chlestil

IPC: H02J50/60 ,  H02J50/20 ,  H02J50/80

CPC classification number: H02J50/60 ,  H02J50/20 ,  H02J50/80

Abstract: The present disclosure relates to an NFC device configured for wireless power transfer, the NFC device comprising an antenna, a frontend circuit coupled to the antenna, a microcontroller coupled to the frontend circuit, the microcontroller comprising an analog-to-digital converter. The analog-to-digital converter is configured to receive an analog amplitude and/or phase signal from the frontend circuit, and to convert the analog signal into a digital signal. The microcontroller is configured to process the digital signal in order to detect a variation in the amplitude and/or phase of the analog signal, so as to detect a change of impedance within the field of the NFC device.

公开(公告)号：US10896300B2

公开(公告)日：2021-01-19

申请号：US16415352

申请日：2019-05-17

Applicant: STMicroelectronics Austria GmbH

Inventor： Francesco Antonetti ,  Christoph Chlestil

IPC: G06K7/10 ,  H04B5/00 ,  H04M1/21

Abstract: A Near Field Communication (NFC) reader can wirelessly cooperate with a rectangular prism-shaped transponder having an NFC transponder antenna. The NFC reader includes an NFC controller, a matching network coupled to the NFC controller, and a receptacle capable of at least partially holding the transponder. The receptacle has a bottom wall, a lateral wall and a shape designed such that the transponder cannot be placed in the receptacle in a direction where the NFC transponder antenna is parallel to the bottom wall. The receptacle includes first and second NFC reader antennas located in two non-parallel parts of the lateral wall and a connection coupling the first and second reader antennas to the matching network.