We describe and claim a film mode judder elimination circuit and method. A
film mode detector detects a film mode in a video signal. A judder
eliminator eliminates judder by dynamically transitioning from one field
rate, e.g., 60 Hz, to another field rate, e.g., 48 Hz or 72 Hz,
responsive to the detection. The transition between the one and another
field rate may occur during the vertical blanking period to avoid
flicker.