Patent ID: 7313183

Claim:
An apparatus configured to process a digital video signal comprising: an input circuit configured to present a digital video signal comprising a plurality of frames; a processing circuit configured to detect scene changes in said digital video signal by analyzing (i) a current one of said plurality of frames and (ii) two or more other frames; and an encoder circuit configured to generate an encoded signal in response to said digital video signal and said scene changes, wherein (a) said two or more other frames comprise (i) a first window of frames that are processed before said current frame and (ii) a second window of frames that are processed after said current frame and (b) (i) said first window comprises a first fixed number of frames that are processed before said current frame, (ii) said second window comprises a second fixed number of frames that are processed after said current frame and (iii) said processing circuit detects said scene changes by analyzing changes between said first window and said second window.