07-20-2006, 10:18 AM
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#1 (permalink)
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HDTV Terminology
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07-20-2006, 10:18 AM
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AC-3
The 5.1-channel sound system specified in the Standard for Digital-HDTV. Also known as "Dolby Digital," 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.
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07-20-2006, 10:19 AM
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#3 (permalink)
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Advanced Television Systems Committee (ATSC)
The ATSC is the committee responsible for developing and establishing Digital-HDTV Standards; as well as all (18) formats of Digital TV.
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07-20-2006, 10:19 AM
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#4 (permalink)
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A/D
Analog to digital conversion (or converter). Used at transmission end of broadcast.
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07-20-2006, 10:20 AM
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#5 (permalink)
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Addressable Resolution
The highest resolution signal that a display device (TV or monitor) can accept.
Caution: Consumers should be aware however, that although a particular device (Digital-HDTV) is able to receive the resolution, it may not be capable of displaying it.
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07-20-2006, 10:20 AM
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#6 (permalink)
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Analog TV
Analog TV is the NTSC Standard for traditional television broadcasts. Analog signals vary continuously, representing fluctuations in color and brightness.
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07-20-2006, 10:21 AM
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#7 (permalink)
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Artifacts
Unwanted visible effects in the picture created by disturbances in the transmission or image processing, such as 'edge crawl' or 'hanging dots' in analog pictures, or 'pixelation' in digital pictures.
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07-20-2006, 10:21 AM
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#8 (permalink)
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Aspect Ratio
Refers to the width of a picture relative to its height. If an NTSC picture is 4 feet wide, it will be 3 feet high; thus it has a 4:3 aspect ratio. HDTV has a 16:9 aspect ratio.
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07-20-2006, 10:22 AM
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#9 (permalink)
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ATSC
See Advanced Television Systems Committee.
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07-20-2006, 10:22 AM
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#10 (permalink)
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ATV
"Advanced Television" is an earlier term used to describe the development and advance applications of digital television, now simply referred to as DTV.
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