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The basic timing signals associated with digital video are Hsync, or horizontal sync, which demarcates the start of active video on each row going left to right on a video frame. Vsync is the vertical sync signal and that defines from top to bottom the start of a new video frame. Field is really only used in interlaced video and that denotes which field between odd and even, which field of a video frame is currently being displayed. For progressive scan systems it’s not really used, not really important. Finally there’s a clock which, is a data clock for each pixel component.
PTM Published on: 2006-08-24
