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<a accesskey="3" href="page.php?w=Video_feedback&amp;p=2">3.Next</a>
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<p><b>Video feedback</b> is the process that starts and continues when a <a href="page.php?w=video_camera">video camera</a> is pointed at its own playback <a href="page.php?w=video_monitor">video monitor</a>. The loop delay from camera to display back to camera is at least one <a href="page.php?w=video">video</a> frame time, due to the input and output scanning processes; it can be more if there is more processing in the loop.</p>

<p><big>History</big></p>
<p>First discovered shortly after <a href="page.php?w=Charlie_Ginsburg">Charlie Ginsburg</a> invented</p><p>
<a accesskey="3" href="page.php?w=Video_feedback&amp;p=2">3.Next</a>
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