Compression - Compression refers to the reduction of the size of digital data files by removing redundant and/or non-critical information ("data" being the elements of video, audio and other "information"). Digital TV in the U.S. would not be possible without compression.
Virtual channel number - This is the channel the consumer thinks he is watching. The actual (physical) channel is selected by a hidden mechanism.
Transponder - A satellite channel. There is often one program per transponder. Some transponders are wider than 6 MHz and can carry more than one NTSC program. Several digital channels can fit on one transponder.
DTVLink - This logo is on equipment that has IEEE 1394 and DTCP.
C-band / Ku-band. - 1. a range of RF spectrum. C-band is app. 4 GHz. Ku-band is app. 12 GHz. 2. Geo-stationary satellites the networks use to acquire and distribute programming to affiliates and cable TV companies. These satellites use C-band and Ku-band frequencies. 3. a consumer service that uses the satellites the networks originally set up for themselves. An 8-foot steerable dish is required. Some channels are free. Others are available by subscription. The digital channel subscription service is called 4DTV.
Wide screen - A term given to picture displays with a wider aspect ratio than NTSC 4:3. Digital HDTV or SDTV is referred to as "16:9 wide screen." Most motion pictures also have a 16:9 wide screen aspect ratio. Most Digital TVs have a screen that is wider than it is tall (if a Digital TV screen is nine inches high, it's 16 inches wide.) When watching a show recorded in the wide screen format on a Digital TV, viewers see more of the movie, while when viewing wide screen format on an analog TV, cropped edges are evident.
Letterbox - Letterbox refers to the image of a wide-screen picture on a standard 4:3 aspect ratio television screen, typically with black bars above and below. It is used to maintain the original aspect ratio of the original source (usually a theatrical motion picture of 16:9 aspect ratio or wider).
Warning: include($_GET[p]_include_path.php) [function.include]: failed to open stream: No such file or directory in /home/ling6/domains/hdtvcomparetips.com/public_html/php-bin/Find.php on line 2
Warning: include() [function.include]: Failed opening '$_GET[p]_include_path.php' for inclusion (include_path='.:/usr/local/lib/php:/php/includes:/home/lingling/domains/php') in /home/ling6/domains/hdtvcomparetips.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/ling6/domains/hdtvcomparetips.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/ling6/domains/hdtvcomparetips.com/public_html/php-bin/Find.php on line 3
