Patents by Inventor Roland J. Condamines

Roland J. Condamines 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).

  • Quadriphonic sound pick-up and reproduction devices
    Patent number: 3940560
    Abstract: A sound pick-up and reproducing system, comprising a first and a second pair of directional microphones respectively disposed at a first and a second given distance from the sonic scene to be transmitted, said second distance being greater than said first distance, said four microphones being closely coupled; the system is characterized in that the spacing between the microphones of the second pair is substantially less than that between the microphones of the first pair, and in that the angular divergence between the sound pick-up axes of the second pair is substantially less than the angular divergence between the sound pick-up axes of the first pair of microphones.
    Type: Grant
    Filed: January 31, 1975
    Date of Patent: February 24, 1976
    Assignee: Etablissement Public, Telediffusion de France
    Inventor: Roland J. Condamines