A requested title recognizing mechanism recognizes the title of a video requested by the subscriber. A VOD service state monitoring mechanism determines whether or not the broadcast of the video is to be provided in the FVOD or the NVOD service, and if there is any available channel for the broadcast....http://www.google.de/patents/US6211901?utm_source=gb-gplus-sharePatent US6211901 - Video data distributing device by video on demand