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