Cisco Cisco Explorer Set-top Software Version 2.1 사용자 가이드
Glossary
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upstream
The transmission path from the subscriber to the headend.
V
VCI
Virtual channel indicator.
VCXO
Voltage–controlled crystal oscillator.
vertical resolution
The number of horizontal lines (or pixels) that can be resolved from the top of an image to the
bottom.
VOD
Video-on-demand. The ability of a subscriber to select a program event and watch it within
moments of selection. VOD allows pausing and rewinding of the event.
VPI
Virtual path indicator.