Patents by Inventor Dan Michael Griffin

Dan Michael Griffin 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).

  • Data transmission system with a low peak-to-average power ratio based on distorting frequently occuring signals
    Patent number: 5651028
    Abstract: An electronic data transmission system has a low peak-to-average power ratio by including a transmitter circuit which receives an input signal and in response generates a distorted output signal. This distorted output signal is generated such the output signal has a large magnitude when the input signal has a high probability of occurrence, and the output signal has a small magnitude when the input signal has a low probability of occurrence. The distorted output signal travels over a communication channel to a receiver circuit which regenerates the input signal by amplifying the distorted output signal with a gain that is the inverse of the gain by which the distorted signal is generated.
    Type: Grant
    Filed: May 9, 1995
    Date of Patent: July 22, 1997
    Assignee: Unisys Corporation
    Inventors: Johnny Michael Harris, Thomas Robert Giallorenzi, David William Matolak, Dan Michael Griffin