composite video (baseband video or RCA video)
Composite video, also called baseband video or RCA video, is the
analog
waveform that conveys the image data in a conventional National
Television Standards Committee (
NTSC) television signal. Composite video contains chrominance (hue and saturation) and luminance (brightness) information, along with synchronization
and blanking pulses, all together in a single signal.
In fast-scan NTSC television, a very high frequency (VHF) or ultra high frequency (UHF) carriercoaxial cables.
Some DVD players and video cassette recorders (VCRs)
accommodate composite video input or output through a phono jack, also known
as an RCA connector.
In composite video, interference between the chrominance and luminance
information is inevitable, and tends to be worst when the signal is weak.
This is why a distant NTSC television station at VHF or UHF, received with
an old-fashioned whip antenna, "rabbit ears," or outdoor
"aerial" often contains false or fluctuating colors.
Compare S-Video.
This was last updated in January 2004
Dig Deeper
-
Backing up to local disk or tape can protect against the accidental destruction of a file but will do nothing to protect you when your facility suffers fire or flooding. Remote backup provides a better solution. This tip looks at two possibilities for remote backup: Choosing an outsourced remote backup service, or using software to do your own backups to an offsite facility.
-
Learn how attackers are using the widespread deployment of low-cost VoIP to leverage phishing attacks.
-
Is the government listening to your VoIP traffic? Can other companies spy on your WAN? It may sound like a paranoid conspiracy theory, but it's not that far out, technologically speaking. In this tip, Tom Lancaster looks at just how exposed your WAN traffic may be.
-
People who read this also read...