Patents by Inventor Allan S. Copeland

Allan S. Copeland 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).

  • Narrow opening electroacoustical transducing
    Patent number: 7463746
    Abstract: A loudspeaker system having an enclosure having a narrow opening or slot for radiating high frequency acoustic energy. The loudspeaker system has a cover member defining a slot between the cover member and a boundary of a listening space. The loudspeaker system may also include a fixed or adaptive equalizer for modifying frequency response anomalies resulting from the interaction of the acoustic energy, the narrow opening, and the boundary.
    Type: Grant
    Filed: March 31, 2003
    Date of Patent: December 9, 2008
    Assignee: Bose Corporation
    Inventors: Gerald F. Caron, George E. P. Chute, Allan S. Copeland, Eric J. Freeman, Doug Kramer