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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.
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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.
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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.
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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
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.
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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
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.
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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
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.
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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.
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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
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.
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公开(公告)号:US20190181919A1
公开(公告)日:2019-06-13
申请号:US16211964
申请日:2018-12-06
Applicant: STMicroelectronics (Rousset) SAS
Inventor: Alexandre Tramoni , Nicolas Cordier , Anthony Tornambe
Abstract: A method of detection of the presence, by a first NFC device, of a second NFC device, during periodic field emission bursts, where detection thresholds are adjusted according to results obtained during one or a plurality of previous bursts.
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公开(公告)号:US11595081B2
公开(公告)日:2023-02-28
申请号:US16899218
申请日:2020-06-11
Applicant: STMicroelectronics (Rousset) SAS
Inventor: Alexandre Tramoni , Nicolas Cordier
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.
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