Patents by Inventor Don Hammer

Don Hammer 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).

  • Distributed audio system
    Patent number: 8861744
    Abstract: One or more wireless speaker units can be distributed through a room, such as a classroom. One or more instructor units can communicate with the speaker unit via base station. Audio pathways can selectively be provided between speaker units, between speaker units and instructor units and between instructor units. A remote control can be used to control the available audio pathways.
    Type: Grant
    Filed: July 22, 2011
    Date of Patent: October 14, 2014
    Assignee: Lightspeed Technologies, Inc.
    Inventors: David Solomon, Shaun Fagan, Jim Arbuckle, Don Hammer, David M. Jordahl, Thomas J. Koller, Michael A. Frost