Patents by Inventor Florent Sibille
Florent Sibille has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20240135119Abstract: In one embodiment, an object can communicate contactlessly with a reader using active load modulation. The method includes detecting a sensing magnetic field emitted by the reader, initializing a phase-locked loop of the object, detecting a stopping of the sensing magnetic field emitted by the reader before initializing the phase-locked loop of the object is complete, calibrating an oscillator of the phase-locked loop on the basis of an internal clock of the object, detecting a new sensing magnetic field of the reader after calibrating the oscillator, and implementing the phase-locked loop to adjust the phase of the oscillator after detecting a new sensing magnetic field.Type: ApplicationFiled: October 12, 2023Publication date: April 25, 2024Inventors: Florent Sibille, Marc Houdebine
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Publication number: 20230297126Abstract: An electronic device includes a near-field communication module and a powering circuit for delivering a power supply voltage to the near-field communication module. When the near-field communication module is in a low power mode, the powering circuit is configured for an operational mode where it is periodically started to provide the power supply voltage.Type: ApplicationFiled: March 9, 2023Publication date: September 21, 2023Applicants: STMicroelectronics (Rousset) SAS, STMicroelectronics SA, STMicroelectronics (Alps) SASInventors: Alexandre TRAMONI, Florent SIBILLE, Patrick ARNOULD
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Patent number: 11736148Abstract: An embodiment device comprises a phase locked loop and a frequency locked loop having in common the same controlled oscillator. The device is firstly placed in the card emulation mode at the beginning of a communication between the contactless communication device and a contactless reader, the firstly placing comprising synchronizing within the contactless device, an ALM carrier frequency with a reader carrier frequency by operating at least the phase locked loop, and upon reception by the contactless communication device of an indication sent by the reader indicating a further communication in a peer to peer mode with the reader, the device is secondly placed in the peer to peer mode, the secondly placing including deactivating the phase locked loop and operating the frequency locked loop with a reference clock signal and a frequency set point depending on the reader carrier frequency and the frequency of the reference clock signal.Type: GrantFiled: July 26, 2021Date of Patent: August 22, 2023Assignees: STMICROELECTRONICS SA, STMICROELECTRONICS RAZVOJ POLPREVODNIKOV D.O.O.Inventors: Marc Houdebine, Kosta Kovacic, Florent Sibille
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Publication number: 20230223989Abstract: 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.Type: ApplicationFiled: January 6, 2023Publication date: July 13, 2023Applicants: STMicroelectronics (Rousset) SAS, STMicroelectronics SA, STMicroelectronics Razvoj Polprevodnikov D.O.O.Inventors: Alexandre TRAMONI, Kosta KOVACIC, Florent SIBILLE, Nicolas CORDIER, Anthony TORNAMBE, Jean Remi RUIZ, Guillaume JAUNET
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Publication number: 20220029660Abstract: An embodiment device comprises a phase locked loop and a frequency locked loop having in common the same controlled oscillator. The device is firstly placed in the card emulation mode at the beginning of a communication between the contactless communication device and a contactless reader, the firstly placing comprising synchronizing within the contactless device, an ALM carrier frequency with a reader carrier frequency by operating at least the phase locked loop, and upon reception by the contactless communication device of an indication sent by the reader indicating a further communication in a peer to peer mode with the reader, the device is secondly placed in the peer to peer mode, the secondly placing including deactivating the phase locked loop and operating the frequency locked loop with a reference clock signal and a frequency set point depending on the reader carrier frequency and the frequency of the reference clock signal.Type: ApplicationFiled: July 26, 2021Publication date: January 27, 2022Inventors: Marc Houdebine, Kosta Kovacic, Florent Sibille
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Patent number: 8285236Abstract: A method may compensate for direct current (DC) offset in a radio frequency reception device. The method may include partitioning an analog portion of the reception device into a plurality of zones, for each zone, calibrating initial DC offset compensation to be applied within an operating range of a respective zone, the operating range of the other zones being limited to a threshold operating range, and determining DC offset compensation to be applied to the reception device throughout the operating range based on the basic DC offset compensations.Type: GrantFiled: July 20, 2009Date of Patent: October 9, 2012Assignees: STMicroelectronics SA, STMicroelectronics N.V., STMicroelectronics (Grenoble) SASInventors: Antoine Hue, Gabriel Della-Monica, Florent Sibille
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Patent number: 7796964Abstract: A radio signal receiver includes an input for receiving an input signal having an input carrier frequency modulated by a payload signal to be detected. A frequency converter changes the carrier frequency of the input signal and produces an intermediate signal that is an image of the input signal, and has a carrier frequency equal to an intermediate frequency. A filter circuit filters the intermediate signal. A demodulator eliminates a component, with a frequency equal to the intermediate frequency, from the filtered intermediate frequency, and produces the payload signal. The receiver also includes a detection circuit to produce a level signal representative of a level of the payload signal. A control circuit applies a control signal representative of the level signal to a control input of the frequency converter, the filter circuit and the demodulator.Type: GrantFiled: April 13, 2007Date of Patent: September 14, 2010Assignee: STMicroelectronics S.A.Inventors: Bruno Pellat, Davy Thevenet, Eric Andre, Florent Sibille, Daniel Saias
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Publication number: 20100020903Abstract: A method may compensate for direct current (DC) offset in a radio frequency reception device. The method may include partitioning an analog portion of the reception device into a plurality of zones, for each zone, calibrating initial DC offset compensation to be applied within an operating range of a respective zone, the operating range of the other zones being limited to a threshold operating range, and determining DC offset compensation to be applied to the reception device throughout the operating range based on the basic DC offset compensations.Type: ApplicationFiled: July 20, 2009Publication date: January 28, 2010Applicants: STMicroelectronics SA, STMicroelectronics N.V., STMicroelectronics (Grenoble) SASInventors: Antoine HUE, Gabriel DELLA-MONICA, Florent SIBILLE
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Publication number: 20100022214Abstract: A method may compensate for direct current (DC) offset in a radio frequency reception device. The method may include partitioning an analog portion of the reception device into a plurality of zones, for each zone, calibrating initial DC offset compensation to be applied within an operating range of a respective zone, the operating range of the other zones being limited to a threshold operating range, and determining DC offset compensation to be applied to the reception device throughout the operating range based on the basic DC offset compensations.Type: ApplicationFiled: July 20, 2009Publication date: January 28, 2010Applicants: STMicroelectronics SA, STMicroelectronics N.V., STMicroelectronics (Grenoble) SASInventors: Antoine HUE, Gabriel Della-Monica, Florent Sibille
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Publication number: 20070249306Abstract: A radio signal receiver includes an input for receiving an input signal having an input carrier frequency modulated by a payload signal to be detected. A frequency converter changes the carrier frequency of the input signal and produce an intermediate signal that is an image of the input signal, and has a carrier frequency equal to an intermediate frequency. A filter circuit filters the intermediate signal. A demodulator eliminates a component, with a frequency equal to the intermediate frequency, from the filtered intermediate frequency, and produces the payload signal. The receiver also includes a detection circuit to produce a level signal representative of a level of the payload signal. a control circuit to apply a control signal representative of the level signal to a control input of the frequency converter, the filter circuit and the demodulator.Type: ApplicationFiled: April 13, 2007Publication date: October 25, 2007Applicant: STMicroelectronics SAInventors: Bruno Pellat, Davy Thevenet, Eric Andre, Florent Sibille, Daniel Saias