Vertical Blanking Interval: Difference between revisions
Jump to navigation
Jump to search
(import information from the "Teletext" article to create this page) |
(No difference)
|
Revision as of 23:34, 17 October 2011
The Vertical Blanking Interval is an interval in a television signal that temporarily suspends transmission of the signal for the electron gun to move back up to the first line of the television screen to trace the next screen field. The vertical blanking interval can be used to carry data, since anything sent during the VBI would naturally not be displayed; various test signals, closed captioning, and other digital data can be sent during this time period.