color burst

40 examples (0.04 sec)
  • Color is encoded based on the phase of this signal in relation to a reference color burst signal.
  • In color television, the color burst placed between each pair of video fields is the pilot signal to indicate that there are color subcarriers present.
  • If the color burst signal were visible on a television screen, it would appear as a vertical strip of a very dark olive color.
  • Instantly a flush of lovely color burst upon us. Cited from The Leavenworth Case, by Anna Katharine Green
  • The actual color burst signal shows up on the vectorscope as a straight line pointing to the left from the center of the graticule.
  • Mode 1 enables the color burst, allowing for color.
  • Among other things, the color burst phase would often drift when channels were changed, which is why NTSC televisions were equipped with a tint control.
  • The color decoder electrically subtracted the signal from the photomultiplier from the existing color burst signal.
  • The tint control that is still found on NTSC televisions originally was meant to correct the color burst phase's drifting when channels were changed.
  • The presence of chrominance in a video signal is indicated by a color burst signal transmitted on the back porch, just after horizontal synchronization and before each line of video starts.
  • Later, blue and orange became available by tweaking the offset of the pixels by half a pixel-width in relation to the color-burst signal.
  • This mode disables the composite color burst signal by default.
  • The color burst consists of a minimum of eight cycles of the unmodulated (fixed phase and amplitude) color subcarrier.
  • The difference between these two modes can only be seen on a composite monitor; mode 0 disables the color burst, making colors appear in grayscale.
  • The BIOS does not provide an option to turn the color burst on in 640x200 mode, and the user must write directly to the mode control register to enable it.
  • For this purpose, a short burst of subcarrier, known as the color burst, is transmitted during the back porch (re-trace blanking period) of each scan line.
  • The chroma detector automatically deletes the color burst from the color encoder output when the absence of chrominance is detected.
  • A monochrome signal is identical to a color one, with the exception that the elements shown in color in the diagram (the color burst, and the chrominance signal) are not present.
  • Some (mostly older) video game consoles and computers use nonstandard color burst phases and may produce dot crawl quite different from that seen in broadcast NTSC or PAL.
  • Similar to the text modes, Mode 4 enables the composite color burst bit, Mode 5 disables it.
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