The apparatus 9, wherein said conversion means arranges said first field and said second field in {HEAD ~ separate areas} in {TAIL ~ one frame} 
in
The apparatus 9 , wherein said conversion means arranges said first field and said second field in { HEAD ~ separate areas } in { TAIL ~ one frame }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL