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.

公开(公告)号：US20200242309A1

公开(公告)日：2020-07-30

申请号：US16773191

申请日：2020-01-27

Applicant: STMicroelectronics Austria GmbH

Inventor： Thomas Poetscher ,  Michael Gugganig

IPC: G06K7/00 ,  H04B5/00 ,  G06K7/10 ,  H04W4/80 ,  H04B17/12

Abstract: In an embodiment, a method of managing an output power delivered by an antenna of a NFC apparatus includes: providing a matching circuit with a first tuning capacitive network coupled in series between a NFC controller and the antenna and with a second tuning capacitive network coupled to the NFC controller and the antenna and to a reference terminal, wherein the first or second tuning capacitive network has a variable capacitive value; determining tuning capacitive values of the first tuning capacitive networks to adjust a delivered output power at a desired level; and setting the tuning capacitive values of the first tuning capacitive network to the tuning capacitive values.

公开(公告)号：US20220263542A1

公开(公告)日：2022-08-18

申请号：US17651322

申请日：2022-02-16

Applicant: STMicroelectronics Austria GmbH ,  STMicroelectronics Razvoj Polprevodnikov D.O.O.

Inventor： Gustavo Jose Henriques Patricio ,  Anton Stem

IPC: H04B5/00 ,  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.

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

Inventor： Gustavo Jose Henriques Patricio ,  Oliver Regenfelder ,  Ulrich Herrmann ,  Thomas Poetscher

IPC: G06K7/10 ,  G06K19/07 ,  H04B5/00

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.

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

IPC: H04B5/00 ,  G06Q20/20 ,  H01Q1/24 ,  H01Q1/38 ,  H01Q7/00

Abstract: A near-field communication antenna includes a conductive plane; and four slots in the conductive plane.

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

IPC: H04B5/00 ,  H01Q7/00 ,  H01Q1/38 ,  H01Q1/24

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.

公开(公告)号：US20190305824A1

公开(公告)日：2019-10-03

申请号：US16371622

申请日：2019-04-01

Applicant: STMicroelectronics Austria GmbH

Inventor： Francesco ANTONETTI

IPC: H04B5/00 ,  H01Q1/38 ,  H01Q7/00

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.

公开(公告)号：US20230387965A1

公开(公告)日：2023-11-30

申请号：US18446224

申请日：2023-08-08

Applicant: STMicroelectronics Razvoj Polprevodnikov D.O.O. ,  STMicroelectronics Austria GmbH

Inventor： Gustavo Jose Henriques Patricio ,  Anton Stern

IPC: H04B5/00 ,  H04W4/80 ,  H04W48/16

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.

公开(公告)号：US20220149895A1

公开(公告)日：2022-05-12

申请号：US17585005

申请日：2022-01-26

Applicant: STMicroelectronics Austria GmbH

Inventor： Francesco ANTONETTI ,  Thomas POETSCHER

IPC: H04B5/00 ,  H02J50/80 ,  H02J50/20 ,  H01Q7/00 ,  H02J7/02

Abstract: An antenna device is formed by a first electrically conductive spiral having a first end connected to a first node and a second end connected to a second node, and a second electrically conductive spiral having a first end connected to the second node and a second end connected to a third node. The first and second nodes are configured for connection to an NFC driver circuit, with the first electrically conductive spiral forming an antenna for near-field communication. The first and third nodes are configured for connection to a wireless power charging driver circuit, with the first electrically conductive spiral and second electrically conductive spiral forming an antenna for wireless power charging.

公开(公告)号：US20210374365A1

公开(公告)日：2021-12-02

申请号：US17332405

申请日：2021-05-27

Applicant: STMicroelectronics Austria GmbH

Inventor： Gustavo Jose Henriques Patricio ,  Oliver Regenfelder ,  Ulrich Herrmann ,  Thomas Poetscher

IPC: G06K7/10 ,  H04B5/00 ,  G06K19/07

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.