Patents by Inventor Ludovic Uhring-Cadart

Ludovic Uhring-Cadart 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).

  • Patent number: 12316287
    Abstract: The invention relates to a high-performance audio amplifier intended to control at least one loudspeaker, the amplifier comprising a pre-amplification stage that receives an input signal, a power amplification stage connected to the pre-amplification stage and a feedback that delivers to the pre-amplification stage an image of the output signal, the power amplification stage comprising two power supply circuits comprising a MOSFET transistor. The invention is characterized in that it comprises: a sub-circuit for assisting with charging, a sub-circuit for assisting with discharging said MOSFET transistor, and a voltage-shifting sub-circuit.
    Type: Grant
    Filed: January 25, 2023
    Date of Patent: May 27, 2025
    Assignee: FOCAL JMLAB
    Inventors: Christian Jury, Ludovic Uhring-Cadart, Michel Marandon
  • Publication number: 20250158584
    Abstract: The invention relates to a high-performance audio amplifier intended to control at least one loudspeaker, the amplifier comprising a pre-amplification stage that receives an input signal, a power amplification stage connected to the pre-amplification stage and a feedback that delivers to the pre-amplification stage an image of the output signal, the power amplification stage comprising two power supply circuits comprising a MOSFET transistor. The invention is characterized in that it comprises: a sub-circuit for assisting with charging, a sub-circuit for assisting with discharging said MOSFET transistor, and a voltage-shifting sub-circuit.
    Type: Application
    Filed: January 25, 2023
    Publication date: May 15, 2025
    Applicant: Focal jmlab
    Inventors: Christian Jury, Ludovic Uhring-Cadart, Michel Marandon
  • Patent number: 10932026
    Abstract: The invention relates to a broadband electrodynamic transducer for headphones, said transducer comprising: —a magnetic motor designed to generate a magnetic field; —a coil that is disposed in the air gap of the magnetic motor and can move translationally under the effect of the magnetic field; and —a membrane that is connected to the coil in such a way as to convert the translational movement of the coil into an acoustic wave; —the transducer comprising a self-supporting coil that is glued to the membrane, the membrane having a Young's modulus of more than 40 GPa.
    Type: Grant
    Filed: June 13, 2017
    Date of Patent: February 23, 2021
    Assignee: FOCAL JMLAB
    Inventors: Ludovic Uhring-Cadart, Clement Auzou, Arnaud Cazes Bouchet
  • Publication number: 20190306605
    Abstract: The invention relates to a broadband electrodynamic transducer for headphones, said transducer comprising:—a magnetic motor designed to generate a magnetic field;—a coil that is disposed in the air gap of the magnetic motor and can move translationally under the effect of the magnetic field; and—a membrane that is connected to the coil in such a way as to convert the translational movement of the coil into an acoustic wave;—the transducer comprising a self-supporting coil that is glued to the membrane, the membrane having a Young's modulus of more than 40 GPa.
    Type: Application
    Filed: June 13, 2017
    Publication date: October 3, 2019
    Applicant: FOCAL JMLAB
    Inventors: Ludovic Uhring-Cadart, Clement Auzou, Arnaud Cazes Bouchet