That portion of a composite video signal between the end of the trailing edge of each horizontal synchronization pulse and the beginning of the color reference burst signal (television communications usage).
Early part of the back porch portion of the video signal. The area between the horizontal sync pulse and the color burst. Bridge(multipointbridge) Device which allows multiple systems to dial in and participate in a single videoconference.
The early part of the Back Porch portion of the video signal. The area between the signal's horizontal sync pulse and the color bust.