VITC

Vertical interval time code (VITC) is recorded directly into the vertical blanking interval of the video signal on each frame of video. Since VITC is actually part of the playback video, it can be read even when the tape is stationary.

This definition/image is licensed under the GNU Free Documentation License found at http://www.gnu.org/copyleft/fdl.html. It uses material from the Wikipedia article at http://en.wikipedia.org/wiki/Vertical_interval_timecode.