Patents by Inventor Ted Lewandowski

Ted Lewandowski 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).

  • Transformerless data transmission line driver
    Patent number: 5818874
    Abstract: A line driver circuit uses a ROM to store coefficients corresponding to incoming data pulses and converts the coefficients in a digital-to-analog converter to the desired pulse (signal) shape, which drives a current-mirror for applying high level bipolar signals to the transmission line.
    Type: Grant
    Filed: January 31, 1997
    Date of Patent: October 6, 1998
    Assignee: Northern Telecom Limited
    Inventors: Ted Lewandowski, Manfred Ficker