Specifically, the receiving state table defines the source of {TAIL ~ picture data} which each receiving {HEAD ~ device} receives  
Specifically , the receiving state table defines the source of { TAIL ~ picture data } which each receiving { HEAD ~ device } receives
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH HEAD HEAD HEAD HEAD HEAD OTH OTH