Pulse or digital communications – Receivers – Interference or noise reduction
Reexamination Certificate
2007-11-06
2007-11-06
Odom, Curtis (Department: 2611)
Pulse or digital communications
Receivers
Interference or noise reduction
C375S229000, C375S230000, C375S231000, C375S232000, C375S233000, C375S234000
Reexamination Certificate
active
09528678
ABSTRACT:
A block-iterative equalizer is adapted for use in contemporary digital communication system receivers. In a preferred embodiment, data received over a communication channel is processed by a linear feed-forward filter and the resulting filtered signal is provided to a slicer which makes a first set of tentative symbol decisions. During later iterations, the same received data is processed by the linear feed-forward filter, the feed-forward filter parameters being modified at each iteration based on the received data and the tentative decisions are themselves filtered by a second, “feed-back” filter and used to improve the tentative decisions.
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Chan Albert M.
Wornell Gregory W.
Gauthier & Connors LLP
Massachusetts Institute of Technology
Odom Curtis
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