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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.
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公开(公告)号：US11218191B2
公开(公告)日：2022-01-04
申请号：US16850383
申请日：2020-04-16
Applicant: STMicroelectronics Austria GmbH
Inventor： Francesco Antonetti
Abstract: A near-field communication antenna includes a conductive plane; and four slots in the conductive plane.
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公开(公告)号：US12191933B2
公开(公告)日：2025-01-07
申请号：US17453425
申请日：2021-11-03
Applicant: STMicroelectronics Austria GmbH
Inventor： Francesco Antonetti
Abstract: A near-field communication antenna includes a conductive plane; and four slots in the conductive plane.
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公开(公告)号：US20240235274A1
公开(公告)日：2024-07-11
申请号：US18403385
申请日：2024-01-03
Inventor： Bruno Tisserand , Oliver Regenfelder , Laurent Regnier , Martin Rampetsreiter , Christoph Chlestil
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.
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公开(公告)号：US11770156B2
公开(公告)日：2023-09-26
申请号：US17651322
申请日：2022-02-16
Inventor： Gustavo Jose Henriques Patricio , Anton Stem
CPC classification number: H04B5/0031 , H04W4/80 , H04W48/16
Abstract: The disclosure relates to a modified NFC framing is used by a reader and selected devices during at least a part of the communication between the reader and the selected devices. The reader and the selected devices store modification rules for modifying the frames. Devices not storing those modification rules will discard the received modified frames.
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Patent Agency Ranking
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
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.
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公开(公告)号：US20220263542A1
公开(公告)日：2022-08-18
申请号：US17651322
申请日：2022-02-16
Inventor： Gustavo Jose Henriques Patricio , Anton Stem
Abstract: The disclosure relates to a modified NFC framing is used by a reader and selected devices during at least a part of the communication between the reader and the selected devices. The reader and the selected devices store modification rules for modifying the frames. Devices not storing those modification rules will discard the received modified frames.
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8.发明授权公开(公告)号：US11416692B2
公开(公告)日：2022-08-16
申请号：US17332405
申请日：2021-05-27
Applicant: STMicroelectronics Austria GmbH
Abstract: An embodiment method comprises transmitting a reader carrier signal from a contactless reader to a contactless device, receiving by the reader, a device modulated carrier signal from the device, the device modulated carrier signal having a carrier frequency, preferably turning off by the reader, the transmission of the reader carrier signal during reception of the device modulated carrier signal, and after having turned off the transmission of the reader carrier signal, determining by the reader the presence or the absence at the reader's antenna of a modulated carrier signal having at the reader's antenna the carrier frequency with a tolerance, without relying on the data content of the modulated carrier signal.
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公开(公告)号：US20220060217A1
公开(公告)日：2022-02-24
申请号：US17453425
申请日：2021-11-03
Applicant: STMicroelectronics Austria GmbH
Inventor： Francesco Antonetti
Abstract: A near-field communication antenna includes a conductive plane; and four slots in the conductive plane.
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公开(公告)号：US10917137B2
公开(公告)日：2021-02-09
申请号：US16371622
申请日：2019-04-01
Applicant: STMicroelectronics Austria GmbH
Inventor： Francesco Antonetti
Abstract: An electronic device includes a back cover, a display, a middle frame sandwiched between the display and the back cover, and a near field communications (NFC) antenna incorporated within the middle frame. An electronic board is positioned within the middle frame, and includes an NFC controller and a matching network coupled to the NFC controller. The matching network is configured to match impedances between the NFC antenna and the NFC controller.
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