Are you the basics of HDTV? DTV and HDTV the same thing? What should I know before buying a new TV?
Thinking of buying a new TV a few hours or in the near future.
The television is ready for the transition from analog to DTV 17th February 2009?
This date is much closer than you think.
A better understanding of the transition to digital television, HDTV, and, knowing these basics will help you be ready when it's timeConsider a new television.
Buying a new TV today can be overwhelming, with more to visit your local television or electronics store. Shopping for a digital television or HDTV, works with all the acronyms, terms, resolution, dpi, sizes and options that you can get on TV today can be confusing. And you thought he was buying a new car badly.
So, what consumers need to know Thurs
There are many decisions facing today's consumer unpreparedjust look through this complex maze can be daunting. However, many of these frustrations, while doing some work before the hand can be avoided.
Things to Know Before You Go
What is digital TV ... and it is not. What is the digital TV transition ... and how it affects you. What is HDTV different from all TV formats ... And how. You know what they want and need, so you can not sell something you do not want or need!
So how do you start?Familiarize yourself with the different conditions and classification
TV Rating:
TV analog NTSC (National Television Systems Committee), traditional television, now discontinued in the February 17
ATSC digital TV - (Advanced Television Systems Committee) DTV;
This is "SDTV - Standard Definition TV - the new (digital) TV series;
replaced NTSC analog 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, HDTV display - but only by adding an external HDTV receiver.
EDTV - Enhanced Digital TV - a classification that describes * digital TV which are basically high-end 'SDTV. While these are often some type of technical features, the manufacturer in order to improve the image, but image quality as HDTV.Technically, there is virtually no difference between an SDTV and EDTV visual - with the possible exception of the higher price.
* For many consumers, this classification is of questionable value by more for a TV with the tag "EDTV" consumers will get what may be described as "an" update "SDTV. The problem is how to" date "is when the TV is simply the standard for SDTV?
Several TV Display Technologies:
CRT - (cathode ray tube): traditional TVTechnology - shows the established standard for television, best overall value - the image quality and cost; major drawback is large and the mass increases with size. Display - Ultra slim design, high contrast marks "fixed pixel" display: size to 60 inches +, some restrictions on the display - expensive, high-risk plasma burn-in, quality of color image affected by the inability to see the black, the displays are extremely heavy and fragile, image quality is lost as pixels do not fade many plasma screens,Display HDTV resolutions. The development continues.
LCD - Liquid Crystal Display: The slim, size restrictions, a computer monitor good, strong image for static display; trouble viewing moving images with many LCD HDTVs are not capable. The development continues.
LCOS (Liquid Crystal on Silicon) - Improved LCD technology for HDTV viewing promise future costly production problems remain, the development in progress.
DLP (Digital Light Processor) - Uses and chipsSoftware Technology - interesting, alternative display technology excellent, HDTV display, removing most of the coming short of other technologies, moderate cost, and some viewers question "softer" image and the use of "color wheel" promising future - continuous development.
TV screen configuration:
Aspect Ratio
The relationship between width and height of a TV monitor or program.
Elongation can be either on the TV monitor (using hardware), or the format of the TV program.
Traditional -(4:3) aspect ratio,''the display has square appearance. All analogue TV programs are in a ratio of 4:3.
New "Wide Screen (16:9) aspect ratio, the screen 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 must make a series of decisions long before they make their final purchasing decision. Understanding the basics of HDTV requires us to interact with a series ofstrange new "tech-speak" terms.
Examples:
Elongation - width and height (4:3) or (16:9) refers to the TV screen and television programs.
Image resolution - 720 p; 1080-i, 480 i / p - and recently added, 1080-P.
Progressive Scan - display method ("p" in 720-p)
Interlaced scanning - a method of display ("i" in the 1080-s)
D / - / D - analog-digital converter and analog-digital
STB - Set-top boxes (aka: receiver, tuner, decoder or decoder)
OTA -"Over-the-air" or "off-the-air" - refers to local TV
These are just some of the new words you encounter.
The Enigma Digital TV
As consumers begin their search for information on digital HDTV, and soon discovered what looks like a "vacuum of information." The attempt to obtain useful and reliable information on what you need to buy a digital television may seem difficult.
Try to basic questions about HDTV, for example, is the transitionfrom analogue to digital TV means everyone is forced to buy an HDTV? or "What is the difference between SDTV and HDTV, or what you need to receive high-definition TV in your house? Now compare the answers you get, or lack of knowledge about the distribution of people attended.
Note clear: the seller must be booked or have missing information on the functions of a digital television for sale to you. This is a government mandate.
In sharp contrast toThe other extreme is the steady stream of "misinformation" and "disinformation." This flow of unreliable information has flooded the public. The path of useful, reliable information with inaccuracies, errors and myths covered. And this is compounded by a misleading advertising and marketing strategies.
For example, here's a question always perplexed by consumers on the transition from analog TV to digital TV:
"I can tell iftrue, is that "normal TV would stop and everyone will be forced to buy an HDTV? I do not think they can do this ... But it is true, when it happened? "
Okay, actually two questions ...
The answer to the first is, of course - no, not true. At least not in the nature of the problem. 'S true, that "normal TV" (ie traditional NTSC analog TV will end), replaced by digital television ATSC, no need to buy an HDTV!
IMPORTANT NOTE: The FCCrequired step from analog to digital TV does not apply, nor the "high-definition television!"
Note: If you keep analog TV, you can create a converter, which makes viewing TV can decide the purchase. There are good to help with the purchase on the website listed, and is free for printing.
This highlights one of the most important sources for so much public confusion about digital TV and HDTV. These are two distinct concepts, butthey are often wrong - used interchangeably as if they were words of equal importance. Are not the same, and appoint two separate classifications of television. |
High definition television is "digital", but HDTV is only one (1) eighteen (18) TV in digital format "described in the ATSC standard.
It 'important to understand that the consumer "Digital TV" does not mean HDTV.
Digital TV is "Standard Definition TV - SDTV is not -HDTV - High Definition Television.
So is every consumer him / her self-informed on the basics of digital HDTV.
But - beware!
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 other sources.
The Digital difference
Digital TV signals are made up of coded instructions - (the same "bit" of ones and zeros "that make your computer work, and give lifeto "CD" and "'s DVD') - 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 the signal strength, or what conditions exist between the set and the channels in question. Until the signal reaches the receiver and the code can be read, digital TV can play an almost perfect picture - virtually identical to the original, back in the studio.
Aof the main advantages of digital transmission is that the bad reception a thing of the past. A basic cable television is captured, because it provides a clear picture of TV, without regard to the viewer site. Viewers do not have to constantly adjust the antenna in an attempt to "tune in to receive" a weak signal from a remote station for a clear picture. Digital TV (DTV) eliminates the "snow" and "ghosting" the weak signals from distant or blocked causing transmission towers. If the analogTelevision does not receive a strong signal from the tower and not distorted, do not get a clear picture.
Both digital and analog TV signals weaken their journey farther from the tower. With analog TV, the picture slowly deteriorates from bad to worse, than the distance between the tower and the receiver increases. However, the digital image on a set stay perfect until the signal is too weak to distinguish between a beneficiary (a) and a(0), at which point the image disappears completely.
This is also called "rock effect" - the situation remains stable until it suddenly "fell" on the screen. This could send Morse code are compared. As long as the other party, the points and transmission lines, will be able to read the message. If they lose, the distinction between a point and a pinch of losing the message. Digital TV works the same way, but for the posting of points and lines,Leave million (1p) and (0's) per second.
As long as the TV receiver can read (1 and 0) is a nearly perfect image is displayed. The bottom line ... You will receive both image quality at 100% or nothing. What this means for viewers of digital TV, no more worries of being a "bad photo. Or you have a photo or not. However, if you receive over-the-air (OTA Over The Air) broadcasts, it is essential for be accurate antennaDirected toward the signal source - the radio tower of station six.
Add an "H" to "DTV '= WOW! While our goal is to get HDTV with bases, so far we have focused in particular on digital television - DTV. So what is HDTV - High Definition Television, and what is the difference between DTV and HDTV?
DTV is different from NTSC analog TV technology used to transmit the signal. And we saw some of the reasons why it is better digital and analog. ButIf you compare digital TV or SDTV (Standard Definition TV) HDTV, the difference is like day and night, high-definition television and digital television - but ... is important to understand that does not mean digital TV, HDTV! HDTV is only called one of (18) ATSC formats, including digital TV. In high-definition television, the image displayed on the TV screen captured begins as a HDTV signal of HDTV cameras (or converted from film or any other format with HDTV equipment).The HDTV signal is transmitted to the HDTV 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 "true HDTV.
Note: It 's more than likely that it will show incorrect information that the digital television in different configurations' is the high-definition television will face. "This is not true, you can also say that long, as the TV responds to one or two criteria, or if it has been improved by the manufacturer,with some engineering proprietary "Magic", which makes it - "as good" - HDTV. Again not true!
If what you want is HDTV, the TV be sure that you are considering, is really "True High Definition Television. How do you know of a TV - HDTV? To answer this question, a "little 'TV core technology will be useful.
E 'in understanding some of the basics of HDTV through the Enlightenment itself be useful. After all, this is a discussion about Digital-HDTV - perhapssignificant leap forward "in the consumer technology to impact our society in more than a century!
The image you see on your TV screen is a series of horizontal lines there. Energy electron gun shoots' beams (light), a layer of phosphorus strike on the inside of the CRT, which makes the filament. These glowing lines create the image displayed on the TV screen. How are formatted, which resolution is used, what standards are met, some of the factorsdetermine, given the nature of the TV.
TV appears Resolution.The image quality on TV screen is primarily the result of television, "resolution". In simple terms, refers to TV "resolution" as many horizontal lines are displayed on the TV screen.
Note - Although the horizontal count (in this case), this is called the resolution "vertical" because the lines numbered from top to bottom - or vertically. TV resolution issometimes as many pixels for a total ', gave a product of the number of rows and number of pixels per line
Why is the "wide-screen TV is the standard DTV?
DTV sets are sold in two 'aspect ratios. Aspect ratio refers to the ratio of the horizontal (width) and measure the vertical (height) of the screen. This relationship is also demonstrated in relation to the use that the image is transmitted and the screen. The two reports of ' appearance are used in DTV (4:3) and(16:9). Ie, (4) units wide (3) units high, and (16) units wide (9) and units of height. The NTSC analog TV has an aspect ratio (4:3), the screen looks almost 'square', because only a little more width to height. For example, it would be (4 ') wide screen at an altitude of (3 have').
Go to the link below to find more information about the DTV transition analog February 17, 2009 left in the dark.
This brief introduction to digital TV andBasics of HDTV, an overview (simplified on purpose), such as DTV is different from traditional analog TV, HDTV, and how different from digital SDTV and a bit 'for the transition from analogue to digital television. This is just the beginning for a better understanding of digital TV. Now that you're with some basics, you are better prepared to start thinking about which HDTV is right for you.
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