Patents Assigned to STMicroelectronics Austria GmbH
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Patent number: 11770156Abstract: 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.Type: GrantFiled: February 16, 2022Date of Patent: September 26, 2023Assignees: STMicroelectronics Austria GmbH, STMicroelectronics Razvoj Polprevodnikov D.O.O.Inventors: Gustavo Jose Henriques Patricio, Anton Stem
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Patent number: 11522578Abstract: 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.Type: GrantFiled: July 9, 2021Date of Patent: December 6, 2022Assignee: STMicroelectronics Austria GmbHInventor: Christoph Chlestil
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Patent number: 11501093Abstract: 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.Type: GrantFiled: January 27, 2020Date of Patent: November 15, 2022Assignee: STMicroelectronics Austria GmbHInventors: Thomas Poetscher, Michael Gugganig
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Patent number: 11416692Abstract: 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.Type: GrantFiled: May 27, 2021Date of Patent: August 16, 2022Assignee: STMICROELECTRONICS AUSTRIA GMBHInventors: Gustavo Jose Henriques Patricio, Oliver Regenfelder, Ulrich Herrmann, Thomas Poetscher
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Publication number: 20220149895Abstract: 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.Type: ApplicationFiled: January 26, 2022Publication date: May 12, 2022Applicant: STMicroelectronics Austria GmbHInventors: Francesco ANTONETTI, Thomas POETSCHER
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Patent number: 11218191Abstract: A near-field communication antenna includes a conductive plane; and four slots in the conductive plane.Type: GrantFiled: April 16, 2020Date of Patent: January 4, 2022Assignee: STMICROELECTRONICS AUSTRIA GMBHInventor: Francesco Antonetti
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Patent number: 11043751Abstract: A communication device includes a first near field communication (NFC) antenna configured to have a first resonance frequency, and a metal chassis forming part of an outer surface of the communication device. The metal chassis forms an auxiliary antenna, where the auxiliary antenna is configured to be powered by the first NFC antenna by electromagnetic induction and is also configured to have a resonance frequency substantially equal to the first resonance frequency.Type: GrantFiled: November 5, 2018Date of Patent: June 22, 2021Assignee: STMICROELECTRONICS AUSTRIA GMBHInventor: Francesco Antonetti
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Patent number: 10917137Abstract: 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.Type: GrantFiled: April 1, 2019Date of Patent: February 9, 2021Assignee: STMicroelectronics Austria GmbHInventor: Francesco Antonetti
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Patent number: 10896300Abstract: 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.Type: GrantFiled: May 17, 2019Date of Patent: January 19, 2021Assignee: STMICROELECTRONICS AUSTRIA GMBHInventors: Francesco Antonetti, Christoph Chlestil
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Publication number: 20200295804Abstract: An antenna device for use with a wireless power charging operation and a near-field communication (NFC) operation is formed sets of electrically conductive loops. The sets include a first set of loops configured to form a NFC antenna and a second set of loops. The first and second sets of loops together are configured to form a wireless power charging antenna.Type: ApplicationFiled: March 5, 2020Publication date: September 17, 2020Applicant: STMicroelectronics Austria GmbHInventors: Francesco ANTONETTI, Thomas POETSCHER
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Publication number: 20190305824Abstract: 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.Type: ApplicationFiled: April 1, 2019Publication date: October 3, 2019Applicant: STMicroelectronics Austria GmbHInventor: Francesco ANTONETTI