公开(公告)号：US20230223989A1

公开(公告)日：2023-07-13

申请号：US18094309

申请日：2023-01-06

Applicant: STMicroelectronics (Rousset) SAS ,  STMicroelectronics SA ,  STMicroelectronics Razvoj Polprevodnikov D.O.O.

Inventor： Alexandre TRAMONI ,  Kosta KOVACIC ,  Florent SIBILLE ,  Nicolas CORDIER ,  Anthony TORNAMBE ,  Jean Remi RUIZ ,  Guillaume JAUNET

IPC: H04B5/00

CPC classification number: H04B5/0025 ,  H04B5/0056

Abstract: A near-field communication circuit of a first NFC device alternates, in low power mode, between: first phases of emission of field bursts and second phases spanning an entire duration separating two successive first phases. Each second phase includes a field detector enabling phase. In one implementation, the field detector enabling phase extends all along a duration of the second phase. In an alternate implementation, the field detector enabling phase is interrupted by field detector disabling phases. Each field detector disabling phase has a duration shorter than a minimum duration of each first phase.

公开(公告)号：US20220271568A1

公开(公告)日：2022-08-25

申请号：US17676729

申请日：2022-02-21

Applicant: STMicroelectronics (Rousset) SAS

Inventor： Nicolas CORDIER ,  Anthony TORNAMBE ,  Jeremy QUIGNON

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

Abstract: A device includes: an NFC controller; a microcontroller; a charging circuit for an external battery; an energy recovery device; an antenna; and a switch. The NFC controller is configured to selectively control the switch in order to couple the energy recovery device to the charging circuit.

公开(公告)号：US20160218774A1

公开(公告)日：2016-07-28

申请号：US14881528

申请日：2015-10-13

Applicant: STMICROELECTRONICS (ROUSSET) SAS

Inventor： Pierre RIZZO ,  Anthony TORNAMBE

IPC: H04B5/00 ,  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.

Abstract translation: 一种系统包括天线和耦合到天线的通信电路，并且被配置用于基于无接触通信协议经由天线接收和发送信息中的至少一个。 充电器被配置为经由天线对电源模块进行非接触充电。 控制器被配置为选择性地操作通信电路和充电器。

公开(公告)号：US20220231543A1

公开(公告)日：2022-07-21

申请号：US17571705

申请日：2022-01-10

Applicant: STMicroelectronics (Rousset) SAS

Inventor： Anthony TORNAMBE ,  Nicolas CORDIER

IPC: H02J50/80 ,  H02J50/50 ,  H02J50/40

Abstract: A contactless device includes an impedance matching and filter circuit connected to an antenna and being on the one hand operable for contactlessly communicating with a second device via the antenna, and on the other hand operable for contactlessly charging a rechargeable power supply of a third device via the antenna. A method of control includes modifying the impedance matching and filter circuit of the contactless device depending on whether the contactless device carries out the contactless communication or carries out the contactless charging.

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.