Patents Assigned to Dawntreader, Inc.
  • Patent number: 4951151
    Abstract: Computer operated projectors are positioned to project onto an uneven surface or relief map prepared to reflect a remote surface. If the remote surface is geographical, the surface is at a scale in which the horizontal scale is substantially larger than the vertical scale. A sound system provides surround sound. A second substrate or movie screen and projector are positioned to provide related video images.
    Type: Grant
    Filed: July 28, 1988
    Date of Patent: August 21, 1990
    Assignee: Dawntreader, Inc.
    Inventors: James L. Sorenson, Alan L. Madsen, Ronald E. Madsen, Jr.