Pulse or digital communications – Receivers – Angle modulation
Reexamination Certificate
2006-04-10
2009-10-06
Bayard, Emmanuel (Department: 2611)
Pulse or digital communications
Receivers
Angle modulation
C375S232000, C375S235000
Reexamination Certificate
active
07599449
ABSTRACT:
Methods and apparatuses for blind equalizers with a hybrid adaptation error. In one embodiment, a Quadrature Amplitude Modulation (QAM) signal receiver, includes: a filter to reduce error in equalization, the filter to output a QAM signal; a decision engine coupled to the filter to determine a symbol based on the QAM signal; a first error generator coupled to the filter to compute a first error signal based on the QAM signal and a constant; a second error generator coupled to the filter and the decision engine to compute a second error signal based on the QAM signal and the determined symbol; an error combinator coupled to the first and second error generators to generate a combined error signal from the first and second error signals; and an adaptation engine coupled with the error combinator and the filter to reduce a equalization error according to the combined error signal.
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Bayard Emmanuel
Mei Ivy Y.
Montage Technology Group, Ltd
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