Tuesday, February 5, 2013

Howto Identify Analog TV, Digital TV and HDTV

How do I differentiate Analog TV, Digital TV and HDTV

For the first time there is a television, a model of television is still using analog TV concept, the quality of the image obtained is still very bad, still a lot of distractions, especially in image noise. Analog TV is still using a CRT that is not efficient place nor power-efficient. Because many of these weaknesses, then made the next-generation TV that aim to minimize these shortcomings. Still remember when I first high-definition television (HDTV) market in 1998, movie fans, sports fans and technology lovers quite excited, and for good reason. From the advertiser then has become a new haven television with superior resolution and digital surround sound. With HDTV, you can also play movies in their original widescreen format without the "black bars" top and bottom, some people do not like to look like this, studio mode. Now broadcast TV into use is the Digital TV (DTV). DTV is transmitting a signal using code 01. In the on-air broadcasting, DTV transmitted using Ultra High Frequency (UHF) and radio spectrum ranging from 6 MHz. The picture quality is very clear, although in a small TV. DTV reaches 704 pixel resolution so images remain clear despite appearing on the big screen. For the video, because of the support of high resolution, the display image per frame will not produce flicker. Unlike the analog TV when used for video and imposed on the big screen, the image will be blurry and disjointed. DTV also supports HDTV broadcasts. Well, on the HDTV (High-defenition TV) itself, HDTV is part of the standard set for DTV. Standard is concerned with how the audio and video that can be translated and transmitted. So, not all DTV has the same quality as there is some level of quality of DTV. And this HDTV is the highest standard of digital signals that exist at present. Possessed the lowest quality digital format is the highest quality possessed by analog TV. But for many people, the term HDTV word quite foreign. Instead, people have gone shopping for a TV and found themselves surrounded by confusing abbreviations and too many choices. Fortunately, a few basic facts easily dispel all this confusion. In this article, we'll look at the differences between analog, digital and high-definition, explain the acronyms and resolution levels. DTV Standard has an aspect ratio of 4:3 whereas HDTV 16:9 (like that of a movie screen). HDTV resolution can reach 1921 × 1080 pixels, and the lowest is 1280 × 720 pixels. While in DTV only reached 704 × 480 pixels. That is, the number of pixel HDTV 10x more than analog TV. To frame rate, arguably the same. But the most striking difference is the analog TV is not capable of displaying a resolution of 1920 × 1080 pixels at 60 fps (frame per second).


Twitter Delicious Facebook Digg Stumbleupon Favorites More

Design by Free WordPress Themes | Bloggerized by Lasantha - Premium Blogger Themes | coupon codes