Patents by Inventor Todd C. Ortberg

Todd C. Ortberg 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).

  • Amplifier switch controller and system
    Patent number: 5963843
    Abstract: An amplifier switch controller is provided for use in a headend cable transmission system having first and second amplifiers and amplifier input and output paths connected to one of the first and second amplifiers, which becomes the currently activated amplifier. The amplifier switch controller comprises an input sampler for sampling a combined signal on the input signal path and measuring an input signal level. The amplifier switch controller also comprises an output sampler for sampling the amplified combined signal on the output signal path and measuring an output signal level. A program means receives the input and output signal levels and determines whether the currently activated amplifier is not functioning properly. If it is not functioning properly, the program means generates a control signal to a switch.
    Type: Grant
    Filed: December 9, 1996
    Date of Patent: October 5, 1999
    Assignee: ADC Telecommunications, Inc.
    Inventors: Eric K. Sit, John C. Keller, Jeffrey O. Brown, Reuben W. Meline, Leah E. Danzinger, Zakhary Bluband, Todd C. Ortberg