vertical blanking การใช้

• When in HS mode, commands are transmitted during the vertical blanking interval.
• These lines are typically inserted into the vertical blanking interval of the video signal.
• On the Nintendo Entertainment System, an NMI is generated during each vertical blanking interval.
• In effect, to prevent broken video frames, the switch must wait until the vertical blanking.
• This information is embedded in a part of the signal called the vertical blanking interval.
• Horizontal blanking is between lines and vertical blanking is between fields ( half frames ).
• VIT signals are inserted in the vertical blanking.
• V-chip technology works much like closed captioning and uses the vertical blanking interval in the television signal.
• The parameters defined by standard include horizontal blanking and vertical blanking intervals, horizontal / vertical sync polarity.
• The approaches went beyond closed-captioning and were based on a broadcasting feature called the vertical blanking interval.
• Image data on the bus is interleaved with signals for horizontal and vertical blanking intervals ( porches ).
• Most consumer VCRs use the known black level of the vertical blanking pulse to set their recording levels.
• In each field vertical blanking is about 1612 ?s in System M ( analogue TV system in USA ).
• It consists of a waveform inserted into the non-picture Vertical Blanking Interval ( VBI ) of an analogue video signal.
• Coordinated Video Timings-Reduced Blanking ( CVT-RB ) is a VESA standard which offers reduced horizontal and vertical blanking for non-CRT based displays.
• The video parameters defined by the standard include horizontal blanking ( retrace ) and vertical blanking intervals, horizontal / vertical sync polarity.
• Early teletext applications also used vertical blanking interval lines 14 18 and 20, but teletext over NTSC was never widely adopted by viewers.
• In television, in particular, the vertical blanking interval is long to accommodate the slow equipment available at the time the standard was set.
• In teletext mode, character codes were sent to users'televisions by encoding them as dot patterns in the vertical blanking interval of the video signal.