Pulse or digital communications – Equalizers – Automatic
Reexamination Certificate
2004-08-27
2008-07-15
Ha, Dac V (Department: 2611)
Pulse or digital communications
Equalizers
Automatic
Reexamination Certificate
active
07400675
ABSTRACT:
An adaptive equalization method and system for automatically adjusting an equalizer to compensate a signal's frequency dependent loss is disclosed. The method comprises setting the equalizer's initial coefficient value, receiving an equalized signal, identifying a positive to zero transition of the equalized signal, generating a common mode voltage from the equalized signal, and determining the equalized signal's tail settling voltage. The method further comprises comparing the equalized signal's tail settling voltage to the common mode voltage, determining if the signal is over equalized or under equalized based on the comparison, and adjusting the equalizer's coefficient value based on whether the signal is under equalized or over equalized.
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Moughabghab Najwa
Moughabghab Raed
Wang De Jun
Xu Fang
Gardere Wynne & Sewell LLP
Ha Dac V
Mindspeed Technologies Inc.
Rahman Michael A.
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