Patents by Inventor Martial L. Lebhar

Martial L. Lebhar 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).

  • Scalable switcher with detachably securable frame adapter cards for routing audio and video signals
    Patent number: 5978881
    Abstract: A switcher for selectively routing a plurality of input signals to a plurality of output signal ports. The switcher includes a motherboard disposed in a housing, and a switch card for routing ones of the input signals to an output card, wherein the output card functions to amplify signals received from the switch card. The output card and the switch card are also disposed in the housing, and are electronically coupled to each other and to the motherboard by a signal bus on the motherboard. A controller card is provided for controlling the routing of the input signals to the output signal ports. The controller card, the output card, and the switch card are electronically coupled to each other and to the motherboard by a control bus on the motherboard.
    Type: Grant
    Filed: February 24, 1997
    Date of Patent: November 2, 1999
    Assignee: Sigma Electronics, Inc.
    Inventor: Martial L. Lebhar