Patents Assigned to Birch Wood Acoustics Nederland B.V.
  • Electro-acoustical system
    Patent number: 5142586
    Abstract: A method and acoustical system for processing sound signals according to the principles of the acoustic holography of sound wave field extrapolation.
    Type: Grant
    Filed: November 20, 1989
    Date of Patent: August 25, 1992
    Assignee: Birch Wood Acoustics Nederland B.V.
    Inventor: Augustinus J. Berkhout