{HEAD ~ The filtered signals} from {TAIL ~ the four filters} are passed sequentially through the four to one multiplexer with the multiplexer control signal being supplied by the controller 
{ HEAD ~ The filtered signals } from { TAIL ~ the four filters } are passed sequentially through the four to one multiplexer with the multiplexer control signal being supplied by the controller
HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH