Further, in Patent Literature 1, the connector plug is only movable in the fore and aft direction, and hence {HEAD ~ the docking station} is only compatible with {TAIL ~ portable information terminals} that are different in thickness 
is compatible with
Further , in Patent Literature 1 , the connector plug is only movable in the fore and aft direction , and hence { HEAD ~ the docking station } is only compatible with { TAIL ~ portable information terminals } that are different in thickness
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL OTH REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH