Patent ID: 6907065

Claim:
A real/complex dual combination channel equalizer, comprising: a channel select unit for outputting selectively real data and imaginary data transmitted from a transmission terminal; a coefficient operation unit for outputting real filter output values and an imaginary filter output value by multiplying each real or imaginary data outputted from the channel select unit to a tap coefficient; a tap coefficient renewal unit for renewing the tap coefficient; a feed-forward filter output unit for removing precedence interference noise from a signal outputted from the coefficient operation unit; a subtracter for subtracting data outputted from a real decision orientation filter unit from data outputted from the feed-forward filter output unit; a real slicer unit for generating real decision data and a real error by data outputted from the subtracter; a complex real slicer unit for generating complex real decision data and a complex real error by the data outputted from the subtracter; a real decision orientation filter unit for generating a successor interference signal by being inputted the data and error outputted from the real slicer unit and complex real slicer unit; and a complex imaginary slicer unit for generating complex imaginary decision data and an imaginary error according to a signal outputted from the coefficient operation unit.