The method 12, wherein said pump up {HEAD ~ signal} is generated in response to {TAIL ~ the following sub steps}: 
The method 12 , wherein said pump up { HEAD ~ signal } is generated in response to { TAIL ~ the following sub steps } :
OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH