A descriptor based system is used for scheduling the timely output of {HEAD ~ transport packets} wherein {TAIL ~ each descriptor} records a dispatch time as well as a receipt time for each transport packet 
wherein
A descriptor based system is used for scheduling the timely output of { HEAD ~ transport packets } wherein { TAIL ~ each descriptor } records a dispatch time as well as a receipt time for each transport packet
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 OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH