An LR separating unit outputs {HEAD ~ an LR separation signal} separated into left and right image signals in each of frames having {TAIL ~ the same image content} 
An LR separating unit outputs { HEAD ~ an LR separation signal } separated into left and right image signals in each of frames having { TAIL ~ the same image content }
OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL