Patents by Inventor Kathleen O. Lee

Kathleen O. Lee 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).

  • Patent number: 6118815
    Abstract: A method for tuning an adaptive equalizer in order to receive digital signals from a transmission medium both coarse and fine tuning methods to adaptively equalize a signal received from the transmission medium. The coarse tuning method adjusts an equalizer such that the post equalized signal starts to resemble a known data pattern, such as an MLT3 data pattern. The coarse tuning method monitors and corrects for several things: illegal transitions, over equalization, statistical data pattern anomalies and saturation conditions. Fine tuning methods operate concurrently with the coarse tuning methods and function from the point at which the coarse tuning methods stop being efficient. Additionally, the fine tuning methods hold the waveform locked in. In addition to coarse tuning and fine tuning of the equalizer, the present invention also adjusts gain of the overall signal such that the post equalized signal is always a certain amplitude.
    Type: Grant
    Filed: December 19, 1997
    Date of Patent: September 12, 2000
    Assignee: 3Com Corporation
    Inventors: Ryan E. Hirth, Ruchi Wadhawan, Robert H. Leonowich, Ayal Shoval, Kathleen O. Lee