Patents Examined by Heechal Kim
  • Method and apparatus for stabilizing a decision feedback equalizer
    Patent number: 6442198
    Abstract: Taps of a decision feedback equalizer (DFE) are stabilized by adding a small amount of noise to the feedback data symbols. In particular, a DFE structure comprises a feedforward filter, slicer, feedback filter and further includes a noise source. The noise source adds noise to the sliced data signal (provided by the slicer) before further processing by the feedback filter.
    Type: Grant
    Filed: October 30, 1998
    Date of Patent: August 27, 2002
    Assignee: Agere Systems Guardian Corp.
    Inventor: Dale Douglas Harman