An operation of the protection circuit upon {HEAD ~ occurrence} of {TAIL ~ an unwanted pulse} in the first packet synchronizing signal a will be described with reference to FIG 5 
An operation of the protection circuit upon { HEAD ~ occurrence } of { TAIL ~ an unwanted pulse } in the first packet synchronizing signal a will be described with reference to FIG 5
OTH OTH OTH OTH OTH OTH OTH 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