Based upon {TAIL ~ the impact force} represented by the signal, an adjustment of {HEAD ~ at least one performance parameter} of the moveable barrier operator is determined 
Based upon { TAIL ~ the impact force } represented by the signal , an adjustment of { HEAD ~ at least one performance parameter } of the moveable barrier operator is determined
OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH