Patent ID: 7187417

Claim:
A video signal processing apparatus comprising: a frame-rate converter which performs a frame-rate conversion of a progressive line-scan video signal based on a film source having M film frames per second (wherein M is a natural number) into a converted progressive line-scan video signal in which each film frame is repeated by N times for each 1/M second (wherein N is an integer of two or greater); and a mixer which mixes, frame by frame, a video signal of a preceding frame and a video signal of a following frame of the converted progressive line-scan video signal, wherein said mixer includes: a first coefficient multiplier which multiplies the video signal of the following frame by a first multiplication coefficient; a second coefficient multiplier which multiplies a mixed output video signal of the preceding frame by a second multiplication coefficient; and an adder which adds an output video signal of said first coefficient multiplier to an output video signal of said second coefficient multiplier to produce the mixed output signal of the following frame; wherein the second multiplication coefficient is a value obtained by subtracting the first multiplication coefficient at that time from one.