The random number generator 12, wherein {TAIL ~ the analog to digital converter} comprises {HEAD ~ a sigma delta modulator circuit} 
The random number generator 12 , wherein { TAIL ~ the analog to digital converter } comprises { HEAD ~ a sigma delta modulator circuit }
OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD