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Communication Technology Update, 9th Edition by Jennifer H. Meadows, August E. Grant

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Glossary

A

Adaptive transform acoustic coding (ATRAC). A method of digital compression of audio signals used in the MD (MiniDisc) format. ATRAC ignores sounds out of the range of human hearing to eliminate about 80% of the data in a digital audio signal.

Addressability. The ability of a cable system to individually control its set-top boxes, allowing the cable operator to enable or disable reception of channels for individual customers instantaneously from the headend.

ADSL (asymmetrical digital subscriber line). A system of compression and transmission that allows broadband signals up to 6 Mb/s to be carried over twisted pair copper wire for rela tively short distances.

Advanced television (ATV). Television technologies that offer improvement ...

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