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How HDTV Works |
We have certainly moved into the 21st century and with HDTV, so has television. HDTV has fast become the talk of the entire television industry and has piqued the interest of television viewers once again. HDTV has proved that the television industry does not just rest on its laurels, but is always looking to provide new and exciting technologies to their consumers. What Is HDTVHDTV is short for High Definition Television. HDTV is a digital technology that is far superior to analog pictures of your regular TV or cable television. With HDTV, the screen is much wider (enabling you to see the complete picture) and you can see the images very clearly even if you are sitting too close to the television screen. Now let's take a brief look at how HDTV works. Television works by processing the signals received and translating this information into scan lines that are painted onto the TV screen, thus giving you visual images. In regular television, a maximum of 525 scan lines are possible in one frame, but with HDTV, it is possible to have between 720 and1080 scan lines per frame. If you think a resolution of 525 lines gives you good picture quality, you can just imagine the excellence that can be achieved with double the resolution as is possible with HDTV. HDTV has the ability to compress data that is in the digital format. Because of this, 6 times more data and information can be sent in the same amount of airwaves that is required for just one analog channel. Broadcasters only have limited airwaves at their disposal. Thus, they can multicast and send many more signals in the airwaves with HDTV, than they can with regular cable television. How To Receive HDTVMany new televisions have HDTV capabilities built into the set itself. However, if your TV set does not support HDTV, you can use a digital converter to convert your analog signals into digital HDTV signals, for a much better, clearer, and superior television experience. |
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