What is HDTV?
(Last updated: 02/17/2002) Back to top HDTV is a set of video quality standards which include resolutions far better than normal NTSC or PAL TV. The most common resolutions discussed are 1080i (1080 horizontal lines of resolution) and 720p (720 lines). The ‘i’ stands for interlaced and the ‘p’ stands for progressive. Standard NTSC signals (regular TV) have 525 lines of resolution, of which only 480-483 are visible. NTSC video is commonly called ‘480i’. See also: 3.3 What resolutions and aspect ratios does Xbox support? 3.14 What do I need to use the Xbox’s HDTV capability? 3.19 Which games support HDTV resolutions? 3.2 What is interlaced? What is progressive? (Last updated: 03/05/2002) Back to top Understand first that TV pictures are created by an electron beam that traces the screen from left to right, top to bottom. A ‘scan line’ is a single left-to-right line made by the beam. In a standard NTSC signal, for example, there are 525 scan lines (you can only see about 480 of them). Int
High-Definition Television (HDTV) is a type of Digital Television (DTV) that receives and/or displays high-definition images and typically Dolby® Digital 5.1 Channel surround sound. HDTV programming and HDTVs together provide an image that is five-times sharper than a standard TV due to the increased number of pixels contained in the received signal. HDTV screens are wider than the traditional analog TV screens. Analog TVs offer a screen aspect ratio of 4:3 while HDTVs offer an aspect ratio of 16:9, which is similar to a movie screen. This allows you to see movies as they were filmed without reformatting. There are also HDTV-capable sets that have the regular TV 4:3 ratio but format HD content in a letterbox presentation (with black bars on the top and bottom of the TV image). Enhanced–Definition Televisions (EDTV) also exists. These 4:3 aspect ratio TVs cannot receive HD-formatted signals. They can receive enhanced-definition signals, which do not have the detail of an HD signal but d
HDTV (High Definition TV) is television characterized by enhanced production and reception of broadcasts. High Definition boasts a picture quality up to 10 times better than standard definition and is known for its razor-sharp clarity and lifelike imagery. HDTV features increased lines of resolution and an improved aspect ratio of 16:9 as opposed to the 4:3 ratio of conventional screens.
HDTV stands for “High Definition Television.” HDTV is a digital signal that delivers clearer, sharper and more vibrant images. Traditional, NTSC analog signals provide 240 to 480 lines of resolution while HDTV signals generate substantially higher resolution (720 and 1080 lines of resolution) resulting in sharper images.
