{HEAD ~ A portable electronic device} 14 wherein said {TAIL ~ locus} of said frame buffer comprises a row of pixels of memory within said frame buffer 
wherein
{ HEAD ~ A portable electronic device } 14 wherein said { TAIL ~ locus } of said frame buffer comprises a row of pixels of memory within said frame buffer
HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH REL OTH TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH