{HEAD ~ A filter device} for precoding {TAIL ~ a data input signal} to derive a data output signal, comprising: 
for precoding
{ HEAD ~ A filter device } for precoding { TAIL ~ a data input signal } to derive a data output signal , comprising :
HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH