Patents by Inventor John J. Coffey

John J. Coffey 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).

  • Electrical cable interface for electronic camera
    Patent number: 5486853
    Abstract: The invention features a video camera system where horizontal and vertical synchronizing signals and a pixel clock signal are generated and added to analog video signals from a video imaging device within an electronic camera head that is connected, via an electrical cable, to a remote host processor having digital signal processing circuitry for processing the video signals. The analog video signals generated by the video imaging device received by the host processor, over the electrical cable, are converted to digital video signals at the remote host, and are then processed by the digital signal processing circuitry.
    Type: Grant
    Filed: December 13, 1994
    Date of Patent: January 23, 1996
    Assignee: PictureTel Corporation
    Inventors: Larry K. Baxter, John J. Coffey