The activated analog switch then samples and holds {TAIL ~ the analog video signal} with the sample being provided to {HEAD ~ an associated bandpass filter} of the switch which is one of four bandpass filters 
The activated analog switch then samples and holds { TAIL ~ the analog video signal } with the sample being provided to { HEAD ~ an associated bandpass filter } of the switch which is one of four bandpass filters
OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH