Video information and sub-information pertaining to a partial image to be displayed on a small-screen monitor are input from a receiver, disk playback unit, or memory data reader. On the basis of the sub-information, a target region data extractor and target region setting unit extract and set a partial...http://www.google.com.hk/patents/US7391473?utm_source=gb-gplus-share專利 US7391473 - Video display method of video system and image processing apparatus
