The position of the device determined by the processor 208 includes both the location and {HEAD ~ orientation} of {TAIL ~ the device} with respect to the origin and may be referred to as the “absolute position” of the device 
of
The position of the device determined by the processor 208 includes both the location and { HEAD ~ orientation } of { TAIL ~ the device } with respect to the origin and may be referred to as the “ absolute position ” of the device
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH 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 OTH OTH OTH OTH OTH