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Glossary
analog signal A signaling method that uses continuo us changes in the amplitude or fre quency of an
electronic transmission to convey information.
aspect ratio Refers to the ratio between th e width and height of the screen. This TV has a 4:3 aspect ratio,
as opposed to a 16:9 (widescreen) aspect ratio.
component video Component video is sent th rough three cables : two color shade ( chrominance) signal s and one
brightness (luminance) signa l. Component video achieves g reater color accuracy than
composite video or S VIDEO by splitting chrominance into tw o separate portions.
composite video Composite video is sent throug h a single cable. Composite video com bines the color shade
(chrominance) and brightness ( luminance) information into one video signal.
degauss A process that demagnetizes the metal components in the TV monitor, which eliminates image
distortion that can result from magnetic charges acquired by th e TV’s components. Your TV
degausses automatically when it is turned on.
digital television (DTV) A new technology for transmitt ing and receiving broadcast tel evision signals. DTV provides
clearer resolution and improved sound quality over analog television.
National Television System
Committee (NTSC)
A unit of the Federal Communication s Commission, Washington, DC, that establ ishes
television standards in the United States, such as NTSC Color, the standard used in this TV.
RF Radio Frequency. That part of the frequency spect rum in which it is possible to radiate
(transmit) electromagnetic waves.
S VIDEO S VIDEO requires a single cable, which carries the brightne ss (luminance) and color
(chrominance) signals of the picture separately. S VIDEO provides better resolution than
composite vide o, which carries the signals toge ther.
VHF/UHF VHF (Very High Frequency) is the part of the radio spectrum from 30 to 300 megahertz. UHF
(Ultra High Frequency) is the part of the radio spectrum from 300 to 3,000 megahertz.
480i Provides 480 lines of resolution. Displays images using interlaced scanning, which first
transmits all the odd lines on the TV screen and then the even lines.
480p Provides 480 lines of resolution. Displays images using progressive scanning, which transmits
each line from top to bottom.
720p Provides 720 lines of resolution. Displays images using progressive scanning, which transmits
each line from top to bottom.
1080i Provides 1080 lines of resolution. Displays images using interlaced scanning, which first
transmits all the odd lines on the TV screen and then the even lines. 1080i is one of the
formats used by HDTV (High De finition TV).
16:9 aspect ratio
4:3 aspect ratio