USB-IF organization announced the specifications of USB-IF Audio / Video Device Class Specification. This specification supports the transmission of audio and video over USB in a variety of devices, including cell phones, cameras, pocket projectors, web-cameras, monitors and TVs.
Standardization of video and audio over USB will allow manufacturers to create small devices that use a single cable for power supply and display connection .
While maintaining backward compatibility with previously released hardware, USB now supports data, video and audio, power supply and other functions.