These configurations, when a child frame video is synthesized for its display on {HEAD ~ the parent frame video} in {TAIL ~ picture} in picture, enable the child frame video to be displayed for playback by displaying it in the suitable displayed position 
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These configurations , when a child frame video is synthesized for its display on { HEAD ~ the parent frame video } in { TAIL ~ picture } in picture , enable the child frame video to be displayed for playback by displaying it in the suitable displayed position
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH