US Patent 9191709 Digital ad insertion for video-on-demand

A video-on-demand (VOD) service provider is configured to select advertising to provide with video-on-demand content, the advertising selected at least in part according to at least one of content metadata, ad schedules, or subscriber profile information, and to signal when the advertising is unavailable. The VOD service provider is configured to identify ad break points for the video-on-demand content to generate a playlist identifying the video-on-demand content and when the video-on-demand content is to be provided, and identifying content corresponding to selected advertising and when the content corresponding to the selected advertising is to be provided. The VOD server receives from a set top box a signal to pause or stop providing of the content to the set top box, and receives from the set top box a signal to resume providing the content to the set top box, and selects different advertising at least in part according to changed conditions when the signal to resume is received, and modifies the playlist to reference the different advertising.