초록 ▼

A digital signal error reduction apparatus of the present invention tracks and reduces both quickly changing errors and static errors in a digital signal which are caused by time variant multipath distortion, co-channel interference, and other transmission path interferences, including nonlinear dis

A digital signal error reduction apparatus of the present invention tracks and reduces both quickly changing errors and static errors in a digital signal which are caused by time variant multipath distortion, co-channel interference, and other transmission path interferences, including nonlinear distortion. A transversal filter is implemented for filtering the digital signal. A error detection device is implemented for calculating an error of the digital signal. A coefficient engine device is used for receiving the digital signal and the error, for extracting the error, and for updating a tap coefficient for the transversal filter so that the error is minimal.

대표청구항 ▼

[ What is claimed is:] [5.] A digital signal error reduction apparatus, said apparatus comprising:a an adder means for receiving a digital signal, for adding a transversal filter means output with the digital signal, and for providing a an adder means output;a slicer means for determining a symbol v

[ What is claimed is:] [5.] A digital signal error reduction apparatus, said apparatus comprising:a an adder means for receiving a digital signal, for adding a transversal filter means output with the digital signal, and for providing a an adder means output;a slicer means for determining a symbol value of the adder means output and for providing a slicer means output;a transversal filter means for receiving the slicer means output and a tap coefficient, for filtering the slicer means output using the tap coefficient, and for providing the transversal filter means output;an error detection means for calculating an error of the adder means output; anda coefficient engine means for receiving the slicer means output and the error, for extracting the error at one of m times, wherein m is an integer, and for updating the tap coefficient of said transversal filter means so that the error is minimal.