Patents Assigned to Advance Engineering
  • Patent number: 6552847
    Abstract: A projection screen apparatus for reproducing the coherence between a visual image and associated acoustic signals. The projection screen apparatus includes a sound broadcasting device and screen that is transparent to sound waves disposed between the sound broadcasting device and the audience, whereby the projection of video and sound broadcasting are simultaneously implemented with respect to the audience. The screen includes multiple layers of white fabric that are superimposed and joined together such that the screen provides a surface that is both transparent to sound and sufficiently opaque to view a projected image.
    Type: Grant
    Filed: June 6, 2001
    Date of Patent: April 22, 2003
    Assignee: Advance Engineering
    Inventor: Patrice Bernard François Congard