Patents by Inventor Jean-Loup Nat AFRESNE

Jean-Loup Nat AFRESNE 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).

  • Electroacoustic conversion chain with selectively powered coil
    Patent number: 10142753
    Abstract: This electroacoustic conversion chain comprising at least one loudspeaker, this loudspeaker comprising means for generating a magnetic field in a magnetic circuit having an air gap and a membrane secured to turns of a conducting material which may move in this air gap, is characterized in that it comprises at least one control module comprising at least one input for conveying a signal to be broadcast and at least one output connected to a turn, the control module being able to apply to said or each output an excitation signal depending on the position of at least one turn relatively to the air gap.
    Type: Grant
    Filed: June 2, 2014
    Date of Patent: November 27, 2018
    Assignee: Devialet
    Inventors: Antoine Petroff, Pierre-Emmanuel Calmel, Jean-Loup Nat Afresne
  • ELECTROACOUSTIC CONVERSION CHAIN WITH SELECTIVELY POWERED COIL
    Publication number: 20160142841
    Abstract: This electroacoustic conversion chain comprising at least one loudspeaker, this loudspeaker comprising means for generating a magnetic field in a magnetic circuit having an air gap and a membrane secured to turns of a conducting material which may move in this air gap, is characterized in that it comprises at least one control module comprising at least one input for conveying a signal to be broadcast and at least one output connected to a turn, the control module being able to apply to said or each output an excitation signal depending on the position of at least one turn relatively to the air gap.
    Type: Application
    Filed: June 2, 2014
    Publication date: May 19, 2016
    Applicant: DEVIALET
    Inventors: Antoine PETROFF, Pierre-Emmanuel CALMEL, Jean-Loup Nat AFRESNE