D/A - Conversion of digital signals to analog signals. Most set-top boxes decode the digital signals broadcast and then convert them to analog signal for interconnection to the display device.
Datacasting - The inclusion of additional data in the broadcasting stream. Such data may be related to the current program (e.g. sports statistics) or may be completely independent (e.g. software downloading or traffic advisories).
Virtual channel number - This is the channel the consumer thinks he is watching. The actual (physical) channel is selected by a hidden mechanism.
Cable card - The Cable Card is the mechanism the industry has adopted to prevent the piracy of cable services. The cable company will periodically mail out new cable cards, ask their customers to plug them into the TV, and then disable the old cards, so anyone without a new cable card would lose service.
AC-3 - The 5.1-channel compressed digital sound system specified for DTV broadcasting in Canada. AC-3 delivers CD-quality digital audio and provides five full-bandwidth channels for front left, front right, center, surround left and surround right speakers, plus an LFE (low frequency effect) subwoofer, for a total of 5.1 channels. AC-3 is one member of a family of sound systems developed by Dolby Labs.
Digital - Digital refers to the circuitry in which data-carrying signals are restricted to one of two voltage levels, corresponding to logic 1 or 0.
NTSC - (National Television System Committee technical standard) - This is analog TV invented in 1946. NTSC has 525 lines (483 visible) interlaced, 60 fields per second. This standard is in use in North America, Japan, South Korea, Burma, Taiwan, the Philippines, and much of South America.
Warning: include($_GET[p]_include_path.php) [function.include]: failed to open stream: No such file or directory in /home/ling8/domains/flatpanelgifts.com/public_html/php-bin/Find.php on line 2
Warning: include() [function.include]: Failed opening '$_GET[p]_include_path.php' for inclusion (include_path='.:/usr/local/lib/php:/php/includes:/home/lingling/domains/php') in /home/ling8/domains/flatpanelgifts.com/public_html/php-bin/Find.php on line 2
Warning: require_once(LingBasics.php) [function.require-once]: failed to open stream: No such file or directory in /home/ling8/domains/flatpanelgifts.com/public_html/php-bin/Find.php on line 3
Fatal error: require_once() [function.require]: Failed opening required 'LingBasics.php' (include_path='.:/usr/local/lib/php:/php/includes:/home/lingling/domains/php') in /home/ling8/domains/flatpanelgifts.com/public_html/php-bin/Find.php on line 3
