Summary
This chapter introduced a number of important techniques and concepts:
Video and audio compression algorithms and how they are used to increase the channel capacity of a cable system
The MPEG-2 systems layer and the multiplexing of multiple program elementary streams into a single physical channel
Baseband transmission mechanisms for compressed audio and video streams, including ATM, SONET, IP, and DVB ASI
Broadband transmission mechanisms for compressed audio and video streams, including QPSK, QAM, and VSB modulation