Are you familiar with basics of HDTV? HDTV and DTV are the same thing? What should I know before buying a new TV?
Think about buying a new TV now or anytime in the near future.
If your TV fit in the DTV transition from analog to 17 February 2009?
This date is much closer than you think.
A better understanding of the transition to digital television, HDTV and to know these basics will help you be ready when it's timeconsider a new television.
Buying a new TV today can be overwhelming and includes more than just a visit to a local television or electronics store. Shopping for a digital television or an HDTV can be confusing all the abbreviations, terms, resolution, dpi, format and options that you can get on TV today. And you thought it was buying a new car badly.
So, what consumers need to know
There are so many decisions in the face of today's consumers unpreparedjust look through this complex maze can be daunting. However, many of these frustrations, doing some work before hand to avoid.
Things to know before departure
What is digital TV ... and it is not. What is the digital TV transition ... and how they are affected. What is HDTV different from all TV formats ... and instructions. You know what they want and need, so you do not sell something you do not want or need!
So where to start?Familiarize yourself with the different conditions and classification
TV Rating:
TV analog NTSC (National Television Systems Committee), traditional television, now expire on February 17.
ATSC digital TV - (Advanced Television Systems Committee) DTV;
This is "SDTV - Standard Definition TV - the new (digital) TV series;
replaced analog NTSC TV.
Integrated HDTV - or simply, HDTV, DTV with an internal (built), high-definition TV receiver.
Thiscan receive and display all ATSC TV signals - including HD signals.
Digital HDTV - "Capable" or "Digital Ready TV 'that is capable of displaying HDTV - but only with the addition of an external HDTV receiver.
EDTV - Enhanced Digital TV - Digital TV * describes a classification are essentially 'high-end' is SDTV. Although this is often a certain type of technical features that are added by manufacturers to improve the image, but the image quality is not the same HDTV.Technically, there is virtually no visual difference between an SDTV and HDTV - with the possible exception of the higher price.
* For many consumers, this classification of doubtful utility to obtain more for a TV with the tag "EDTV" The customer is only what can be best described as an "update" SDTV. The problem is how to "date" is when the TV is simply match the standard for SDTV?
Several TV Display Technologies:
CRT - (Cathode Ray Tube): Traditional TVTechnology - the established standard for TV shows, the best value at all - picture quality and cost; main disadvantage is an increase in mass and the mass. Plasma Display - Ultra-Slim Design, High Contrast votes, "Fixed Pixel" Screen Size up to 60 + inch display some restrictions - expensive, high burn-in danger, the image quality for incompetence, affected black color display; shows extremely heavy and fragile, image quality is lost as pixels fade, many plasma displays do not appearHDTV resolutions. The development continues.
LCD - Liquid Crystal Display: slim design, the constraints of size, good computer monitor, sharp images for static display, problems with the display of moving images, many LCD monitors are not HDTV capable. The development continues.
LCoS (Liquid Crystal on Silicon) - Improved LCD technology for HDTV viewing promise future expensive manufacturing problems continue, the development is in progress.
DLP (Digital Light Processor) - uses silicon and softwareTechnology - interesting, alternative display technology, excellent HDTV display, eliminating the short coming of most other technologies, moderate cost, some viewers demand more "soft" image, and the use of "color wheel" promising the future - continued growth.
TV-Display Configuration:
Aspect ratio
The aspect ratio of a monitor or a TV program.
Aspect ratio can be applied to the TV monitor (hardware) or the format of television.
Traditional - (4:3) aspectRatio, the display appeared 'square'. All analog TV programs in an aspect ratio of 4:3.
New "Wide Screen (16:9) aspect ratio, the display is rectangular.
Digital TV (SDTV) programs can be either 4:3 or 16:9.
HDTV is always in 16:9 format.
As you can see, consumers need to make a series of decisions long before making their final purchasing decision. Understanding the basics of HDTV requires us to become familiar with a series of strange new"Tech Talk" conditions.
Examples:
Aspect ratio - width and height (4:3) or (16:9), in reference to TV viewers and TV.
Image resolution - 720 p, 1080 I, 480 i / p, - and recently added, 1080-p.
Progressive Scan - Display method ("p" in 720-p)
Interlaced scanning - Display method ("i" in the 1080-s)
D / A - A / D - analog-digital converter and analog-digital
STB - Set-Top-Box (also known as: receiver, tuner, decoder or receiver)
OTA - 'over-the-air "or 'off-the-air "- refers to local TV stations
These are just some of the new conditions to meet.
The digital-TV-Enigma
As consumers begin their search for information about digital and HDTV, you see that seems to be a "vacuum of information." Trying to get useful and reliable information on what is necessary to buy a digital TV seem difficult.
Try to basic questions about HDTV, for example, is the transition from analogue toDigital TV that everyone is forced to buy an HDTV? or, What is the difference between SDTV and HDTV, or what is needed for high-definition TV reception in your home? Now compare the different responses or lack of knowledge of sales staff participated.
Note: The seller should be open or have published information relating to the lack of ability to sell digital TV to all consumers. It is a mandate from the government.
In stark contrast, on the other sideExtreme is the steady stream of "misinformation" and "disinformation." This flow of unreliable information to the general public about flooding. The path to useful and reliable information is inaccurate, mistakes and myths uncovered. And this is compounded by the misleading advertising and marketing operations.
For example, here's a question always perplexed by consumers on the transition from analogue to digital TV:
"Can you tell me if it is true that"Normal" TV is stopped, and all are forced to buy an HDTV? I do not think they can do this ... But if it is true, when it happened? "
Okay, this is really two questions ...
The answer to the first is, of course - no, not true. At least not in the way the question is posed. If it is true, which will end in "normal TV" (ie traditional analog NTSC TV), replaced by the ATSC digital television is no need to buy an HDTV!
IMPORTANT NOTE: The FCC requiredTransition from analogue to digital television does not apply, nor the "high-definition television!"
Note: If your analog TV, you can use a converter that will make your TV viewing, you can purchase decision. There are good to help with the purchase on the website indicated and is free for printing.
This highlights one of the most important sources for so much of the confusion the public on digital TV and HDTV. These are two distinct concepts, but areoften used incorrectly - as if they were interchangeable with the words mean the same thing. Are NOT the same thing, they represent two distinctly different classifications of television |.
high definition television is "digital", but HDTV is only one (1) eighteen (18) "Digital TV Standard" means, in the ATSC standard.
It 'important to understand that for the consumer, "Digital TV" does not mean HDTV.
Digital TV is "Standard Definition TV - SDTV - NOT the sameHDTV - High Definition Television.
Therefore, it is up to each consumer to him / her self-informed on the basics of digital HDTV.
But - be careful!
Do not take anything for granted, not to accept statements at face value.
Make sure that everything we hear or read about Digital-HDTV, a comparison with various media.
The digital difference
Digital TV signals are made up of coded instructions - (the same "bit" of "ones and zeros" that work to do on your computer and give life to 'CD's "and 'DVD' s') - the digital receiver will be transferred to your (aka: Tuner, Decoder or Set-Top-Box "STB"), which in turn deciphers the code.
A digital TV receiver is not about signal strength, or what conditions exist between the set and the transmitter. Until the signal is read to the recipients, and the code can see, the digital TV can play an almost perfect picture - virtually identical to the original, the new TV studio.
A significantAdvantage of digital transmission is that the bad reception a thing of the past. A television and basic cable 'read, because it provides a clear television pictures, regardless of the position of the viewer. Viewers do not have to constantly adjust the antenna in an attempt to "tune" a weak signal from a remote transmitter to get a clear picture. Digital Television (DTV) eliminates the "snow" and "ghosting" by the weak signals from distant or blocked transmission towers caused. If the analog televisionnot a strong signal, without distortion obtained from the tower, you will not get a clear picture.
Both analog and digital TV signals weaken their journey farther from transmission tower. With analog TV, the picture slowly deteriorates from bad to worse, increasing the distance between the tower and the receiver. However, the picture on a digital sets stay perfect until the signal is too weak to distinguish between a beneficiary (1) and A (0), wherePoint the image disappears completely.
This was called the "cliff effect" - the situation remains stable until it suddenly "drops" the screen. This could be to send in Morse code comparison. As long as the person can do at the end, the transfer for points and lines in a position to read the message. Once you lose the distinction between a point and a line is leaking the message. Digital TV works the same way, but points to send and dashes, it sendsMillion (1) and (0's) per second.
As long as the TV receiver can read (1 and 0) there is an almost perfect image is displayed. The bottom line ... You will receive a 100% picture quality or anything. This means that digital television viewers, not always having to make an image "bad." Or is it a painting or not. However, if you receive over-the-air OTA (Over The Air) broadcasts, it will be exactly aligned to the antenna crucialin the direction of the signal source - the radio tower of the station you are watching.
Add an "H" to "DTV," DTV = WOW? - While our goal is to get HDTV bases, so far we have focused primarily on digital television What, then, HDTV High Definition Television -. And what is the difference between DTV and HDTV?
DTV is different from the analog NTSC TV in the technology used to transmit the signal. And we have seen some of the reasons why digital is better than analog. But if! Compare digital TV or SDTV (Standard Definition TV), HDTV, the difference is like day and night television high-definition digital television - but ... is important to understand that digital TV does not mean HDTV! HDTV is just one of (18) known ATSC formats, including digital TV. In High Definition Television, the picture begins on the TV screen as an HDTV signal of HDTV cameras, recorded (or converted from film or another format with HDTV equipment). TheHDTV HDTV signal is transmitted to the receiver, and finally displayed on an HDTV-ready TV monitor. But it must also ATSC standard for high-definition television, so they are set to HDTV "true".
Note: It 's more than likely they will show you the wrong information that digital TV is available in different configurations are compared with "High Definition Television." Not true! You also said that until the TV meets one or two criteria, or if it could have been improved by the manufacturer,Using some proprietary "magic" that makes it - "almost" - HDTV. It is also not true!
If what you want is HDTV, the TV be sure that they are considering is true high-definition television. How do you know of a TV - HDTV? To answer this question, a technology of "small" TV base will be useful.
It will be helpful to understand some of the basics of HDTV educating themselves After all, this is a discussion about Digital-HDTV - perhaps thesignificant "step change" in consumer technology for our society in more than one effect of a century!
The image you see on your TV screen is a series of horizontal lines there. energy 'shoot' a gun electron beams (light), to strike a phosphor layer inside the CRT, so they glow. These glowing lines create the image on the TV screen. How are formatted, which resolution is used, what standards are being met, some of the factorsthat the type of television picture, you get.
TV quality Resolution.The the image is displayed on the screen, primarily the result of television, "Resolution". In a nutshell, refers TV "resolution" as many horizontal lines on the screen.
Note - Although the horizontal lines are numbered (in this case) is present as the "vertical resolution," because the lines are counted from top to bottom - or vertically. TV resolutionsometimes as a whole "pixel" to count words, a product of the number of rows and the number of pixels per line
Why "Wide-Screen TV is a DTV standard?
DTV sets are sold in two, "aspect ratio". Aspect ratio is the ratio between the horizontal (width) measurement and the vertical (height) of the screen. This report is also reflected in relation to how the image is transmitted and displayed on the screen. The two aspect ratios are used in DTV (4:3) and(16:9). That is, (4) units wide (3) in height and (16) units wide (9) units high. Their NTSC analog TV has an aspect ratio (4:3), the screen looks almost 'square' because it only has a width of just over height. For example, a (4 ') wide screen would be a height (3').
Go to the link below to find more information about the DTV transition in February 2009 to 17 analog before dark.
This brief introduction to digital TV andHDTV Basics, provides an overview (simplified on purpose), as DTV is different from traditional analog TV, HDTV, and how it differs from digital SDTV and a bit 'on the transition from analogue TV Digital TV. This is just the beginning for a better understanding of digital TV. Now that you're with a few basics, you are better prepared to start thinking about what digital HDTV is right for you.
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