What are the different sync signals and how they work ?
Currently, most TVs and computer monitors are still based on the Cathode Ray Tube (CRT) as the display device. Normal video monitor uses raster scanning to draw the picture to the catode ray tube. The electron beam moves in lines, from left to right and from top to bottom. When the beam reaches the end of a line, it returns at greater speed to its original starting point. When it goes back, brightness is suppressed for a split second. Then it moves down two lines and the process repeats itself (see ‘Interlacing’ for further explanation). When the beam has reached the end of the bottom line, it restarts (with a split second interruption in brightness) at the top line. The image and the reproduction must be synchronized perfectly. This will ensure that each picture element picked up from the video card is reproduced in the right place on the display. There are two kinds of synchronization (sync) pulses: line and image.
Currently, most TVs and computer monitors are still based on the Cathode Ray Tube (CRT) as the display device. Normal video monitor uses raster scanning to draw the picture to the catode ray tube. The electron beam moves in lines, from left to right and from top to bottom. When the beam reaches the end of a line, it returns at greater speed to its original starting point. When it goes back, brightness is suppressed for a split second. Then it moves down two lines and the process repeats itself (see ‘Interlacing’ for further explanation). When the beam has reached the end of the bottom line, it restarts (with a split second interruption in brightness) at the top line. The image and the reproduction must be synchronized perfectly. This will ensure that each picture element picked up from the video card is reproduced in the right place on the display. There are two kinds of synchronization (sync) pulses: line and image. Usually computer display related technical papers those sync signals
Related Questions
- I recently encountered a new traffic light with 4 different signals including flashing arrows in red, yellow, and green. What am I supposed to do when the light is flashing a yellow arrow?
- Why are signals and counts different if I switch between searching by county and by hospital for my geographic area in the emergency department data?
- What are the different sync signals and how they work ?
