The processing unit is connected to said photosensor array for generating {TAIL ~ signals} corresponding to {HEAD ~ said subareas} 
The processing unit is connected to said photosensor array for generating { TAIL ~ signals } corresponding to { HEAD ~ said subareas }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD