公开(公告)号：US11943008B2

公开(公告)日：2024-03-26

申请号：US18153958

申请日：2023-01-12

Applicant: STMICROELECTRONICS LTD ,  STMICROELECTRONICS (ROUSSET) SAS

Inventor： Chia Hao Chen ,  Nicolas Cordier

IPC: H04B5/00 ,  H02J50/10 ,  H02J50/80 ,  H02J50/90

CPC classification number: H04B5/0037 ,  H02J50/10 ,  H02J50/80 ,  H02J50/90 ,  H04B5/0031 ,  H04B5/0081

Abstract: The present disclosure relates to a method for aligning a smartphone providing NFC wireless power for charging a battery of a device, the method comprising: emitting, with a first NFC antenna of the smartphone, an NFC field for wirelessly charging the battery of the device comprising a second NFC antenna; obtaining, with the smartphone, a measured value of a signal representative of the NFC field strength between the smartphone and the device; determining, by the smartphone, a range of values of a plurality of ranges of values the measured value belongs; and emitting, by the smartphone, at least one notification signal to a user with a frequency determined by the determined range of values.

公开(公告)号：US11588519B2

公开(公告)日：2023-02-21

申请号：US17475211

申请日：2021-09-14

Applicant: STMICROELECTRONICS LTD ,  STMICROELECTRONICS (ROUSSET) SAS

Inventor： Chia Hao Chen ,  Nicolas Cordier

IPC: H04B5/00 ,  H02J50/10 ,  H02J50/80 ,  H02J50/90

Abstract: The present disclosure relates to a method for aligning a smartphone providing NFC wireless power for charging a battery of a device, the method comprising: emitting, with a first NFC antenna of the smartphone, an NFC field for wirelessly charging the battery of the device comprising a second NFC antenna; obtaining, with the smartphone, a measured value of a signal representative of the NFC field strength between the smartphone and the device; determining, by the smartphone, a range of values of a plurality of ranges of values the measured value belongs; and emitting, by the smartphone, at least one notification signal to a user with a frequency determined by the determined range of values.

公开(公告)号：US11544480B2

公开(公告)日：2023-01-03

申请号：US17357182

申请日：2021-06-24

Applicant: STMicroelectronics (Rousset) SAS

Inventor： Nicolas Cordier ,  Anthony Tornambe

IPC: G06K7/10

Abstract: An operation of calibrating the object using a reference reader is performed, the calibration operation including an operation of placing the reference reader at various distances away from the object that correspond to various values of a parameter within the object that is representative of the intensity of the signal received by the object, and, for each distance, an operation of determining an internal phase-shift compensation in the object with respect to a nominal internal phase shift, making it possible to obtain a load modulation amplitude that is higher, in terms of absolute value, than a threshold, and an operation of storing a lookup table of the various values of the parameter and the corresponding internal phase-shift compensations.

公开(公告)号：US20210319191A1

公开(公告)日：2021-10-14

申请号：US17357182

申请日：2021-06-24

Applicant: STMicroelectronics (Rousset) SAS

Inventor： Nicolas Cordier ,  Anthony Tornambe

IPC: G06K7/10

Abstract: An operation of calibrating the object using a reference reader is performed, the calibration operation including an operation of placing the reference reader at various distances away from the object that correspond to various values of a parameter within the object that is representative of the intensity of the signal received by the object, and, for each distance, an operation of determining an internal phase-shift compensation in the object with respect to a nominal internal phase shift, making it possible to obtain a load modulation amplitude that is higher, in terms of absolute value, than a threshold, and an operation of storing a lookup table of the various values of the parameter and the corresponding internal phase-shift compensations.

公开(公告)号：US11100299B2

公开(公告)日：2021-08-24

申请号：US16855458

申请日：2020-04-22

Applicant: STMicroelectronics (Rousset) SAS

Inventor： Nicolas Cordier ,  Anthony Tornambe

IPC: G06K7/10

Abstract: An operation of calibrating the object using a reference reader is performed, the calibration operation including an operation of placing the reference reader at various distances away from the object that correspond to various values of a parameter within the object that is representative of the intensity of the signal received by the object, and, for each distance, an operation of determining an internal phase-shift compensation in the object with respect to a nominal internal phase shift, making it possible to obtain a load modulation amplitude that is higher, in terms of absolute value, than a threshold, and an operation of storing a lookup table of the various values of the parameter and the corresponding internal phase-shift compensations.

公开(公告)号：US11005514B2

公开(公告)日：2021-05-11

申请号：US16844246

申请日：2020-04-09

Applicant: STMicroelectronics (Rousset) SAS

Inventor： Nicolas Cordier

IPC: H04B1/38 ,  H03F3/24 ,  H04B5/02 ,  H03F1/56 ,  H04B5/00 ,  H03F3/68 ,  H03F3/21 ,  H04B1/04

Abstract: An amplification circuit includes a first group of amplifiers including N first amplifiers, a second group of amplifiers including K second amplifiers, a first terminal, a second terminal, and a third terminal. Each of the N first amplifiers and each of the K second amplifiers includes an output. The second group of amplifiers is divided into a first subassembly of amplifiers and a second subassembly of amplifiers. The first subassembly includes M second amplifiers of the second group. The second subassembly includes K-M remaining second amplifiers of the second group. The first terminal is coupled to each output of the N first amplifiers and to a first radio frequency output terminal. The second terminal is coupled to each output of the M second amplifiers. The third terminal is coupled to each output of the K-M second remaining amplifiers and to a second radio frequency output terminal.

公开(公告)号：US12079679B2

公开(公告)日：2024-09-03

申请号：US18107245

申请日：2023-02-08

Applicant: STMicroelectronics (Rousset) SAS

Inventor： Nicolas Cordier

IPC: G06K19/07 ,  H05K1/18

CPC classification number: G06K19/0723 ,  H05K1/181 ,  H05K2201/10098 ,  H05K2201/10151

Abstract: A contactless communication device includes an electronic integrated circuit chip and an antenna coupled to the electronic integrated circuit chip to supply an electric signal for powering the electronic integrated circuit chip. An ambient luminosity detection element is coupled to the electronic integrated circuit chip. An ambient luminosity level measured by the ambient luminosity detection element is supplied to the electronic integrated circuit chip for comparison to a darkness threshold. A contactless communication is authorized only when the measured ambient luminosity level is greater than the darkness threshold.

公开(公告)号：US11799517B2

公开(公告)日：2023-10-24

申请号：US18158465

申请日：2023-01-23

Applicant: STMicroelectronics (Rousset) SAS

Inventor： Alexandre Tramoni ,  Nicolas Cordier

IPC: H04B5/00 ,  G06K19/07 ,  H01Q1/24 ,  H01Q1/52 ,  H01Q1/22

CPC classification number: H04B5/0031

Abstract: A circuit for a communication device and a method for switching a communication device are disclosed. In an embodiment, a method includes activating at least one first antenna and at least one second antenna of a near-field communication (NFC) device for switching the NFC device between first field detection phases and second card detection phases.

公开(公告)号：US11300606B2

公开(公告)日：2022-04-12

申请号：US16794977

申请日：2020-02-19

Applicant: STMicroelectronics (Rousset) SAS

Inventor： Nicolas Cordier

IPC: G01R31/28

Abstract: An electronic assembly includes a board and a system mounted to the board. The system includes an impedance matching circuit coupled to a contactless component. A detection circuit operates to carrying out a process for detecting on the board of potential faults in the system mounted to the board. The detection circuit includes a circuit incorporated into the contactless component itself and configured to carrying out a first part of the process for detecting. A processing circuit of the detection circuit performs a second part of the process for detecting based on results of the first part.

公开(公告)号：US20190253092A1

公开(公告)日：2019-08-15

申请号：US16265167

申请日：2019-02-01

Applicant: STMicroelectronics (Rousset) SAS

Inventor： Nicolas Cordier

IPC: H04B1/38 ,  H03F3/24 ,  H03F1/56 ,  H04B5/02

CPC classification number: H04B1/38 ,  H03F1/565 ,  H03F3/211 ,  H03F3/245 ,  H03F3/68 ,  H03F2200/387 ,  H03F2200/451 ,  H04B1/04 ,  H04B5/00 ,  H04B5/02

Abstract: An amplification circuit includes a first group of amplifiers including N first amplifiers, a first terminal coupled to each output of the N first amplifiers, and a second group of amplifiers including N second amplifiers. Each of the N first amplifiers and each of the N second amplifiers includes an output. The second group of amplifiers is divided into a first subassembly of amplifiers and a second subassembly of amplifiers. The first subassembly includes M second amplifiers of the second group and the second subassembly includes N−M remaining second amplifiers of the second group. The amplification circuit further includes a second terminal and a third terminal. The second terminal is coupled to each output of the M second amplifiers and the third terminal is coupled to each output of the N−M second remaining amplifiers.