An amount of defocusing performed by {TAIL ~ the defocusing mechanism} and a gain adjustment by the gain adjustment device are dependent on {HEAD ~ a content} of the composite signal 
An amount of defocusing performed by { TAIL ~ the defocusing mechanism } and a gain adjustment by the gain adjustment device are dependent on { HEAD ~ a content } of the composite signal
OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH