komposiitvideo

Komposiitvideo, often abbreviated as CVBS (Composite Video Baseband Signal), is an analog video transmission standard in which video information is transmitted as a single electrical signal. This signal carries all the necessary information for displaying a picture, including brightness, color, and synchronization pulses. Unlike component video, which separates these elements into different signals, composite video combines them.

The composite video signal typically includes luminance (brightness) and chrominance (color) information modulated onto a subcarrier frequency. Synchronization pulses are also embedded within the signal to help the receiving device properly reconstruct the video frames. Historically, composite video was a common standard for analog televisions, VCRs, and early video game consoles.

Connectors for composite video are usually yellow RCA plugs, often found alongside red and white connectors for stereo audio. While it was once ubiquitous, composite video has largely been superseded by digital video formats such as HDMI due to its lower video quality and susceptibility to interference. However, it can still be found in older equipment and some niche applications where simplicity and compatibility with legacy systems are prioritized. The resolution of composite video is significantly lower than modern digital standards, resulting in a less sharp and detailed image.