Patents by Inventor Nicolas Moeneclaey

Nicolas Moeneclaey 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).

  • Publication number: 20220373388
    Abstract: According to one aspect, an ambient-light sensor includes a photodiode configured to generate an electrical signal according to an ambient light, a capacitive-feedback transimpedance amplifier connected at its input to the photodiode for receiving a signal generated by the photodiode and for generating as an output an amplified signal from the signal generated by the photodiode, and an auto-zero switch at the input of the capacitive-feedback transimpedance amplifier. The ambient-light sensor further includes a control circuit including a bootstrap circuit configured to receive an initial positive- or zero-voltage logic control signal, and then generate, from this initial logic control signal, an adapted logic control signal having a first positive voltage level and a second negative voltage control level for controlling the auto-zero switch.
    Type: Application
    Filed: May 18, 2022
    Publication date: November 24, 2022
    Inventors: Nicolas Moeneclaey, Sri Ram Gupta, Sarika Kushwaha
  • Publication number: 20220341779
    Abstract: The present disclosure relates to a sensor having pixels, each pixel having photodiodes having each a terminal coupled to a first node associated with the photodiode; and an amplifier having a first part and, for each photodiode, a second part associated with the photodiode. The first part includes an output of the amplifier and a first MOS transistor of a differential pair. Each second part includes a second MOS transistor of the differential pair having its gate coupled to the first node associated with the photodiode the second part is associated with; a first switch coupling a source of the second transistor to the first part of the amplifier; and a second switch coupling a drain of the second transistor to the first part of the amplifier.
    Type: Application
    Filed: April 22, 2022
    Publication date: October 27, 2022
    Inventors: Jeffrey M. Raynor, Nicolas Moeneclaey
  • Patent number: 11482836
    Abstract: A driver circuit includes a fly capacitor with a first end and a second end. The driver circuit includes a laser diode having an anode and a cathode. The driver circuit is configured to operate in first and second operating states. The anode is coupled to the first end of the fly capacitor. In the first operating state, the cathode is coupled to a first voltage supply node, the first end of the fly capacitor is coupled to a second voltage supply node, and the second end of the fly capacitor is coupled to a first reference terminal. In the second operating state, the cathode is coupled to a second reference terminal and decoupled from the first voltage supply node, the first end of the fly capacitor is decoupled from the second voltage supply node, and the second end of the fly capacitor is coupled to a third reference terminal.
    Type: Grant
    Filed: January 28, 2020
    Date of Patent: October 25, 2022
    Assignee: STMicroelectronics (Grenoble 2) SAS
    Inventors: Samuel Rigault, Nicolas Moeneclaey, Xavier Branca
  • Publication number: 20220321140
    Abstract: A successive approximation analog-to-digital converter includes a digital-to-analog converter DAC configured to receive a digital signal. First conversion units of the DAC are configured to sample an analog signal via a first switch and provide a first level voltage. Each first conversion unit includes a first capacitor array and a first switch array controlled from the digital signal. A single second conversion unit of the DAC is configured to provide a second level voltage. The second conversion unit includes a second capacitor array and a second switch array. A comparator operates to compare each of the first level voltages to the second level voltage and to provide a comparison signal based on each comparison and actuation of a set of third switches. A control circuit closes the first switches simultaneously and closes the third switches successively for the conversion of each sampled analog signal.
    Type: Application
    Filed: March 29, 2022
    Publication date: October 6, 2022
    Applicants: STMicroelectronics (Grenoble 2) SAS, STMicroelectronics International N.V.
    Inventors: Nicolas MOENECLAEY, Sri Ram GUPTA
  • Publication number: 20220295007
    Abstract: A photosensitive device includes a peripheral circuit semiconductor region, a photosensitive circuit semiconductor region including at least one group of at least two photosensitive elements configured to generate a photoelectric signal on a node called critical node. The device further includes an integrator circuit per group of photosensitive elements, each including: a differential circuit for each photosensitive element of the group, in the photosensitive circuit semiconductor region, an amplification circuit, in the peripheral circuit semiconductor region, and a feedback circuit for each photosensitive element of the group, comprising a capacitive element located in the photosensitive circuit semiconductor region coupled between the output node of the amplification circuit and the respective critical node.
    Type: Application
    Filed: February 3, 2022
    Publication date: September 15, 2022
    Inventors: Nicolas Moeneclaey, Samuel Foulon
  • Publication number: 20220239059
    Abstract: A laser diode driver circuit includes a first pair of contacts and connectors coupled to an anode of the laser diode. An inductance of each of the first pair of contacts and connectors is the same. A second pair of contacts and connectors are coupled to a cathode of the laser diode. An inductance of each of the second pair of contacts and connectors is the same. The laser diode driver circuit also includes current driving circuitry.
    Type: Application
    Filed: April 13, 2022
    Publication date: July 28, 2022
    Applicants: STMICROELECTRONICS (RESEARCH & DEVELOPMENT) LIMITED, STMICROELECTRONICS (GRENOBLE 2) SAS
    Inventors: Denise Tingxi LEE, Neale DUTTON, Nicolas MOENECLAEY, Jerome ANDRIOT-BALLET
  • Publication number: 20220155144
    Abstract: In an embodiment a method for measuring ambient light includes successively synchronizing optical signal acquisition phases with extinction phases of a disruptive light source, wherein the disruptive light source periodically provides illumination phases and the extinction phases, accumulating, in each acquisition phase, photo-generated charges by at least one photosensitive pixel comprising a pinned photodiode, wherein an area of the pinned photodiode is less than or equal to 1/10 of an area of the at least one photosensitive pixel, transferring, for each pixel, the accumulated photo-generated charges to a sensing node, converting, for each pixel, the transferred charges to a voltage at a voltage node and converting, for each pixel, the transferred charges to a digital number
    Type: Application
    Filed: January 5, 2022
    Publication date: May 19, 2022
    Inventors: Pierre MALINGE, Frédéric LALANNE, Jeffrey M. RAYNOR, Nicolas MOENECLAEY
  • Publication number: 20220155143
    Abstract: In an embodiment a method for measuring ambient light includes successively synchronizing optical signal acquisition phases with extinction phases of a disruptive light source, wherein the disruptive light source periodically provides illumination phases and the extinction phases, accumulating, in each acquisition phase, photo-generated charges by at least one photosensitive pixel comprising a pinned photodiode, transferring the accumulated photo-generated charges to an integration node and integrating, for each pixel, the transferred charges on the integration node during a series of the successive acquisition phases.
    Type: Application
    Filed: October 13, 2021
    Publication date: May 19, 2022
    Inventor: Nicolas Moeneclaey
  • Patent number: 11336076
    Abstract: A laser diode driver circuit includes a first pair of contacts and connectors coupled to an anode of the laser diode. An inductance of each of the first pair of contacts and connectors is the same. A second pair of contacts and connectors are coupled to a cathode of the laser diode. An inductance of each of the second pair of contacts and connectors is the same. The laser diode driver circuit also includes current driving circuitry.
    Type: Grant
    Filed: January 15, 2020
    Date of Patent: May 17, 2022
    Assignees: STMICROELECTRONICS (RESEARCH & DEVELOPMENT) LIMITED, STMICROELECTRONICS (GRENOBLE 2) SAS
    Inventors: Denise Lee, Neale Dutton, Nicolas Moeneclaey, Jerome Andriot-Ballet
  • Patent number: 11211770
    Abstract: A circuit includes a laser diode and a switched-capacitance charge pump coupled to control the laser diode. The charge pump can include a capacitor and a switching circuit that is capable of triggering a charge and discharge of the capacitor. The switching circuit can include a switch and an inverting circuit.
    Type: Grant
    Filed: September 20, 2019
    Date of Patent: December 28, 2021
    Assignee: STMICROELECTRONICS (GRENOBLE 2) SAS
    Inventors: Samuel Rigault, Nicolas Moeneclaey
  • Publication number: 20210234336
    Abstract: A driver circuit includes a fly capacitor with a first end and a second end. The driver circuit includes a laser diode having an anode and a cathode. The driver circuit is configured to operate in first and second operating states. The anode is coupled to the first end of the fly capacitor. In the first operating state, the cathode is coupled to a first voltage supply node, the first end of the fly capacitor is coupled to a second voltage supply node, and the second end of the fly capacitor is coupled to a first reference terminal. In the second operating state, the cathode is coupled to a second reference terminal and decoupled from the first voltage supply node, the first end of the fly capacitor is decoupled from the second voltage supply node, and the second end of the fly capacitor is coupled to a third reference terminal.
    Type: Application
    Filed: January 28, 2020
    Publication date: July 29, 2021
    Inventors: Samuel Rigault, Nicolas Moeneclaey, Xavier Branca
  • Patent number: 10868547
    Abstract: The invention concerns a device including: first and second detectors of the phase and/or of the frequency of an input signal with respect to first and second reference signals; and a Sigma/Delta converter interpreting outputs of the first or of the second phase and/or frequency detector to determine a propagation time of the input signal.
    Type: Grant
    Filed: September 4, 2019
    Date of Patent: December 15, 2020
    Assignee: STMicroelectronics (Grenoble 2) SAS
    Inventors: Nicolas Moeneclaey, Cedric Tubert, Arnaud Authie
  • Patent number: 10728481
    Abstract: A method is disclosed for operating an imaging device having a matrix of pixels arranged in rows and columns. A polarization voltage is generated on a gate of a main MOS transistor that is connected as diode. The main MOS transistor is coupled between a power supply voltage and a ground circuit. Prior to reading the pixels of a row of the matrix, a plurality of first capacitors are charged with the polarization voltage. The first capacitors are coupled between the gate of the main transistor and a ground node. Upon reading the pixels of the row, the first capacitors are discharged on respective gates of auxiliary transistors coupled between the columns and the ground node so as to switch on the auxiliary transistors and deliver a substantially identical polarization current to each column.
    Type: Grant
    Filed: October 19, 2018
    Date of Patent: July 28, 2020
    Assignee: STMICROELECTRONICS (GRENOBLE 2) SAS
    Inventor: Nicolas Moeneclaey
  • Publication number: 20200227885
    Abstract: A laser diode driver circuit includes a first pair of contacts and connectors coupled to an anode of the laser diode. An inductance of each of the first pair of contacts and connectors is the same. A second pair of contacts and connectors are coupled to a cathode of the laser diode. An inductance of each of the second pair of contacts and connectors is the same. The laser diode driver circuit also includes current driving circuitry.
    Type: Application
    Filed: January 15, 2020
    Publication date: July 16, 2020
    Applicants: STMICROELECTRONICS (RESEARCH & DEVELOPMENT) LIMITED, STMICROELECTRONICS (GRENOBLE 2) SAS
    Inventors: Denise LEE, Neale DUTTON, Nicolas MOENECLAEY, Jerome ANDRIOT-BALLET
  • Publication number: 20200106239
    Abstract: A circuit includes a laser diode and a switched-capacitance charge pump coupled to control the laser diode. The charge pump can include a capacitor and a switching circuit that is capable of triggering a charge and discharge of the capacitor. The switching circuit can include a switch and an inverting circuit.
    Type: Application
    Filed: September 20, 2019
    Publication date: April 2, 2020
    Inventors: Samuel Rigault, Nicolas Moeneclaey
  • Publication number: 20200099381
    Abstract: The invention concerns a device including: first and second detectors of the phase and/or of the frequency of an input signal with respect to first and second reference signals; and a Sigma/Delta converter interpreting outputs of the first or of the second phase and/or frequency detector to determine a propagation time of the input signal.
    Type: Application
    Filed: September 4, 2019
    Publication date: March 26, 2020
    Inventors: Nicolas Moeneclaey, Cedric Tubert, Arnaud Authie
  • Publication number: 20200006915
    Abstract: Disclosed herein is a method of optical pulse emission including three phases. During a first phase, a capacitor is charged from a supply voltage node. During a second phase, a voltage stored on the capacitor is boosted, and then the capacitor is at least partially discharged through a light emitting device. During a third phase, the capacitor is further discharged by bypassing the light emitting device. The third phase may begin prior to an end of the second phase.
    Type: Application
    Filed: September 13, 2019
    Publication date: January 2, 2020
    Applicants: STMicroelectronics (Grenoble 2) SAS, STMicroelectronics (Research & Development) Limited
    Inventors: Nicolas MOENECLAEY, Shatabda SAHA
  • Patent number: 10454246
    Abstract: An optical pulse emitter includes a light emitting device having a first node coupled to an intermediate node via a first switch. The intermediate node is coupled to a supply voltage node via a second switch. A capacitor is coupled to the intermediate node. The first, second and third switches are controlled by a control circuit. During a first phase, the second switch is actuated to couple the capacitor to the supply voltage node. During a second phase, the second switch is deactuated and the first switch is actuated to at least partially discharge the capacitor through the light emitting device. During a third phase, discharge current from the capacitor bypasses around the light emitting device.
    Type: Grant
    Filed: February 24, 2016
    Date of Patent: October 22, 2019
    Assignees: STMicroelectronics (Grenoble 2) SAS, STMicroelectronics (Research & Development) Limited
    Inventors: Nicolas Moeneclaey, Shatabda Saha
  • Publication number: 20190238779
    Abstract: A method is disclosed for operating an imaging device having a matrix of pixels arranged in rows and columns. A polarization voltage is generated on a gate of a main MOS transistor that is connected as diode. The main MOS transistor is coupled between a power supply voltage and a ground circuit. Prior to reading the pixels of a row of the matrix, a plurality of first capacitors are charged with the polarization voltage. The first capacitors are coupled between the gate of the main transistor and a ground node. Upon reading the pixels of the row, the first capacitors are discharged on respective gates of auxiliary transistors coupled between the columns and the ground node so as to switch on the auxiliary transistors and deliver a substantially identical polarization current to each column.
    Type: Application
    Filed: October 19, 2018
    Publication date: August 1, 2019
    Applicant: STMicroelectronics (Grenoble 2) SAS
    Inventor: Nicolas Moeneclaey
  • Patent number: 10042000
    Abstract: A method can be used to generate a reference clock signal having a reference frequency. N clock sub-signals are generated, where N is greater than or equal to 2. The N clock sub-signals are successively mutually shifted out of phase by ?/N and each clock sub-signal has an elementary frequency that is equal to the reference frequency divided by N. The N clock sub-signals are propagated over propagation paths. The elementary frequency and a length of the longest propagation path are chosen so that each sub-signal has an acceptable degree of deformation. The duration of each sub-signal edge is longer than quarter of the period of the reference frequency. The reference clock signal is generated by EXCLUSIVE OR combining the propagated clock sub-signals at the end of their respective propagation paths.
    Type: Grant
    Filed: August 29, 2017
    Date of Patent: August 7, 2018
    Assignee: STMicroelectronics (Grenoble 2) SAS
    Inventor: Nicolas Moeneclaey