Patents by Inventor Mark E. Nelsen

Mark E. Nelsen 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).

  • Switching facility having a control panel with relegendable buttons
    Patent number: 9621426
    Abstract: A switching facility has a plurality of input ports for connection to signal sources in multiple categories, each category having multiple members, a plurality of output ports for connection to signal destinations in multiple categories, each category having multiple members, and a switch fabric configurable by a control system to connect any selected input port to any unique group of one or more output ports. A control panel interacts with the control system and has a plurality of actuatable elements and a display area associated with each actuatable element for displaying a legend associated with the actuatable element. The control system is functionally connected to the control panel and is operative to change the legend associated with an actuatable element.
    Type: Grant
    Filed: April 17, 2008
    Date of Patent: April 11, 2017
    Assignee: GRASS VALLEY USA, LLC
    Inventors: Mark E. Nelsen, Kieran J. Lyons, Thomas B. Crabb, Gary M. Waters