公开(公告)号：US11533081B2

公开(公告)日：2022-12-20

申请号：US17229337

申请日：2021-04-13

Applicant: STMicroelectronics (Rousset) SAS

Inventor： Alexandre Tramoni ,  Pierre Rizzo ,  Guillaume Jaunet

IPC: H04B5/00 ,  G06K7/10 ,  H04B5/02 ,  H04W52/02

Abstract: In accordance with an embodiment, a method includes: transmitting, by a first near-field communication (NFC) device, a field emission burst; comparing a characteristic property of a signal of the field emission burst to a detection threshold; determining a presence of a detection error based on the comparing; and adjusting the detection threshold based on a number of determined detection errors.

公开(公告)号：US11558734B2

公开(公告)日：2023-01-17

申请号：US17317401

申请日：2021-05-11

Applicant: STMicroelectronics (Rousset) SAS

Inventor： Thierry Crespo ,  Pierre Rizzo ,  Alexandre Tramoni ,  Patrice Portefaix

IPC: H04W8/22 ,  G06K19/077

Abstract: An embodiment subscriber identification module includes a first communication interface, including first pads intended to be coupled to a modulator-demodulator circuit; a second interface, including second pads intended to be coupled to a subscriber identification module card; and a switching circuit, configured to couple the first pads to the second pads or to a communication module integrated to the subscriber identification module. Another embodiment concerns a method of controlling the module.

公开(公告)号：US11272338B2

公开(公告)日：2022-03-08

申请号：US16719640

申请日：2019-12-18

Applicant: STMicroelectronics (Rousset) SAS ,  STMicroelectronics GMBH

Inventor： Thierry Meziache ,  Pierre Rizzo ,  Alexandre Charles ,  Juergen Boehler

IPC: H04B7/00 ,  H04W4/80 ,  G06K7/00 ,  G06K7/10 ,  H04B5/00

Abstract: A device, including a main element (ME) and a set of at least two auxiliary elements (SEi), said main element including a master SWP interface (MINT), each auxiliary element including a slave SWP interface (SLINTi) connected to said master SWP interface of said NFC element through a controllably switchable SWP link (LK) and management means (PRMprocessor, CTLM, AMGi) configured to control said SWP link switching for selectively activating at once only one slave SWP interface on said SWP link.

公开(公告)号：US10432268B2

公开(公告)日：2019-10-01

申请号：US15845632

申请日：2017-12-18

Applicant: STMicroelectronics (Rousset) SAS

Inventor： Pierre Rizzo ,  Anthony Tornambe

IPC: H04B5/00 ,  H02J7/02 ,  H02J50/12

Abstract: A system includes an antenna, and communications circuitry coupled to the antenna and configured for at least one of receiving and transmitting information via the antenna based on a contactless communications protocol. A charger is configured for contactless charging a power supply module via the antenna. A controller is configured for selectively operating the communications circuitry and the charger.

公开(公告)号：US20180109294A1

公开(公告)日：2018-04-19

申请号：US15845632

申请日：2017-12-18

Applicant: STMicroelectronics (Rousset) SAS

Inventor： Pierre Rizzo ,  Anthony TORNAMBE

IPC: H04B5/00 ,  H02J50/12 ,  H02J7/02

CPC classification number: H04B5/0037 ,  H02J7/025 ,  H02J50/12 ,  H04B5/0031

Abstract: A system includes an antenna, and communications circuitry coupled to the antenna and configured for at least one of receiving and transmitting information via the antenna based on a contactless communications protocol. A charger is configured for contactless charging a power supply module via the antenna. A controller is configured for selectively operating the communications circuitry and the charger.

公开(公告)号：US09941935B2

公开(公告)日：2018-04-10

申请号：US15629525

申请日：2017-06-21

Applicant: STMicroelectronics (Rousset) SAS

Inventor： Pierre Rizzo ,  Alexandre Tramoni

IPC: H04B7/00 ,  H04B5/00 ,  H03H7/40 ,  H04W76/02

CPC classification number: H04B5/0031 ,  H03H7/40 ,  H04W76/14

Abstract: An electronic device includes an antenna, an irremovable component, a removable component, an impedance matching circuit, and a controller. The impedance matching circuit is arranged in a first configuration corresponding to the removable component connected to the irremovable component. The impedance matching circuit has a first capacitor, a second capacitor, and a third capacitor. The controller is configured to arrange the impedance matching circuit in a second configuration corresponding to the removable component being disconnected from the irremovable component.

公开(公告)号：US09887741B2

公开(公告)日：2018-02-06

申请号：US14881528

申请日：2015-10-13

Applicant: STMICROELECTRONICS (ROUSSET) SAS

Inventor： Pierre Rizzo ,  Anthony Tornambe

IPC: H04B5/00 ,  H02J7/02 ,  H02J50/12

CPC classification number: H04B5/0037 ,  H02J7/025 ,  H02J50/12 ,  H04B5/0031

Abstract: A system includes an antenna, and communications circuitry coupled to the antenna and configured for at least one of receiving and transmitting information via the antenna based on a contactless communications protocol. A charger is configured for contactless charging a power supply module via the antenna. A controller is configured for selectively operating the communications circuitry and the charger.

公开(公告)号：US20140273836A1

公开(公告)日：2014-09-18

申请号：US14209132

申请日：2014-03-13

Applicant: STMicroelectronics (Rousset) SAS

Inventor： Pierre Rizzo ,  Nathalie Vallespin ,  Emmanuel Papart

IPC: H04B5/00

CPC classification number: H04B5/0025 ,  H04B5/0043 ,  H04B5/0056

Abstract: An anticollision method for an NFC device wherein, in reader mode, a variation of a piece of information representative of the amplitude of the signal in an antenna of the device is monitored, and if this piece of information exceeds a threshold, the device is switched to the card mode.

Abstract translation: 一种用于NFC设备的防冲突方法，其中在读取器模式中，监视表示设备的天线中的信号幅度的一条信息的变化，并且如果该信息超过阈值，则该设备被切换 到卡模式。