Patents Assigned to Etat Francais represente per le Ministre des PTT (Centre National d'Etudes des Telecommunications)
  • Sound production device
    Patent number: 4658427
    Abstract: A sound production device has at least one generator for producing a video signal and an analog-to-digital converter if the video signal is not already digital. The video is converted to a plurality p of signals which are representative of P parameters. The device also has a set of digital-to-analog converters equal in number to the number of parameters and a matrix for connecting the P signals to a second plurality of q inputs of a sound synthesizer, the output of which is connected to a loudspeaker.
    Type: Grant
    Filed: August 2, 1984
    Date of Patent: April 14, 1987
    Assignee: Etat Francais represente per le Ministre des PTT (Centre National d'Etudes des Telecommunications)
    Inventor: Sylvain Aubin