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Topic: Digital television


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  Digital television - Wikipedia, the free encyclopedia
Digital television (DTV) is a telecommunication system for broadcasting and receiving moving pictures and sound by means of digital signals, in contrast to analog signals in analog (traditional) TV.
It uses digital modulation data, which is digitally compressed and requires decoding by a specially designed television set or a standard receiver with a set-top box.
All early SDTV television standards were analog in nature, and SDTV digital television systems derive much of their structure from the need to be compatible with analog television.
en.wikipedia.org /wiki/Digital_television   (1343 words)

  
 [No title]   (Site not responding. Last check: 2007-10-21)
Digital teletext is supposed to provide interactive services, but for this a separate upstream channel such as a telephone line or ethernet connection is required.
Digital television in the UK The UK has three major forms of digital television, a direct-to-home satellite service provided by British Sky Broadcasting (commonly known as Sky), digital cable television services provided by Telewest and NTL and a free-to-air digital terrestrial service called Freeview.
Digital television in the U.S. The US Congress and Federal Communications Commission mandated that TV stations convert to the Digital TV standard by 2003 and that stations give up their analog TV spectrum by 2006.
wikiwhat.com /encyclopedia/d/di/digital_television.html   (1814 words)

  
 Encyclopedia :: encyclopedia : Digital television   (Site not responding. Last check: 2007-10-21)
Digital terrestrial television (DTT) is in the process of deployment in a number of countries.
Today most viewers receive digital television via a set-top box, which decodes the digital signals into signals that analog televisions can understand, but a slowly growing number of TV sets with integrated receivers are already available.
Digital teletext is supposed to provide interactive services, but for this a separate "return path", such as a telephone line or Internet connection, is required.
www.hallencyclopedia.com /Digital_television   (1658 words)

  
 Digital terrestrial television - Wikipedia, the free encyclopedia
Digital Terrestrial Television (DTTV or DTT) is an implementation of digital technology to provide a greater number of channels (SDTV) and/or better quality of picture (EDTV, HDTV) and sound (AC3, Dolby Digital) through a conventional antenna (or aerial) instead of a satellite dish or cable connection.
DTTV is transmitted on radio frequencies that are similar to standard analog television, with the primary difference being the use of multiplex transmitters to allow reception of multiple channels on a single frequency range (such as a UHF or VHF channel).
The UK DTT was relaunched as a free-to-air platform ("Freeview") in 2002 and the UK DTT currently leads the world in terms digital television penetration (along with Finland).
en.wikipedia.org /wiki/Digital_terrestrial_television   (940 words)

  
 Digital Television
Digital television is the application of digital technology to television to the process of producing and transmitting television programming.
Television was developed as an "analog" medium, but the replacement of analog technology with digital technology throughout the television production and transmission process promises to increase the capabilities of the medium.
The term "digital" refers to a type of electronic signal in which the information is stored in a sequence of binary numbers ("on" or "off", representing one and zero) rather than in a continuously varying signal (known as an analog signal).
www.museum.tv /archives/etv/D/htmlD/digitaltelev/digitaltelev.htm   (890 words)

  
 Digital Television and Datacasting
Digital Broadcasting Australia (DBA) has been developed to ensure the smoothest possible transition to digital television for associated industries, viewers and consumers.
Digital Television in Australia: 2002 Industry Survey was conducted for the ABA by the Interactive Television Research Institute of Murdoch University on the views of the relevant industry players on the potential drivers and inhibitors for the digital television industry.
Digital Television Broadcasting: Perspectives on the Future provides a broad overview of digital television technologies, their potential to offer new and improved services, as well as their inherent risks.
www.aph.gov.au /Library/INTGUIDE/SP/Digital_television.htm   (2385 words)

  
 DIGITAL TELEVISION   (Site not responding. Last check: 2007-10-21)
The FCC Order called digital television "a technological breakthrough" and reaffirmed the national policy to "...preserve and promote universal, free, over-the-air television." The FCC considered a schedule of 15 years for adoption of a digital TV system, but decided on a more ambitious target date of 2006 for ceasing the broadcasting of analog television.
Digital is a form of encoding in which the waveform of a signal is represented as a series of digits, which are then encoded as binary "0s" and "1s," or as "ONs" and OFFs." Since digits rather than an analog of the waveform are encoded, the digital representation allows near perfect storage and transmission.
Digital TV can also mean multicasting in which a number of conventional (but digitized) TV signals are sent in the space of a single channel.
rcf.usc.edu /~noll/TheNollView_files/DigitalTV.htm   (1818 words)

  
 Digital Television
Digital switchover is the process of changing the UK’s television broadcasting to digital.
Digital switchover will involve converting the current television broadcasting network, as well as encouraging everyone to convert or upgrade their TV and recording equipment to receive digital television.
Digital UK is an independent, not-for-profit organisation, established by the broadcasting industry to lead the switchover programme and communicate with the public.
www.digitaltelevision.gov.uk   (530 words)

  
 KCTS/Seattle: The Public Network | Digital TV | Glossary of Digital Television Terms
For the purposes of digital television signals, bits are counted in groups of a million each (Megabits, or Mb).
Digital television signals use a data rate of 20 Megabits per second (Mb/s).
The ultimate digital TV technology, HDTV uses twice as many lines as traditional television screens, and is broadcast in the wide-screen (16:9) format also found in movie theaters.
www.kcts.org /digital/glossary/index.asp   (959 words)

  
 Public Digital Television Issues
In a digital transmission system, images and sounds are captured and transmitted using the digital code found in computers as zeroes and ones.
A digital television signal is capable of delivering up to 19.4 megabits per second (Mbps) of data over-the-air.
Local public television stations are introducing a new generation of programming and services that meet the educational and public safety needs of the communities they serve.
www.apts.org /PTVissues/digitalTV/index.cfm   (538 words)

  
 DIGITAL TELEVISION (DTV) - What is DTV?
Digital Television (DTV) is the latest way of broadcasting that is transforming our television viewing experience.
Digital cable or digital satellite does not mean a program is in high-definition.
Digital pictures will be free from the "ghosts" and "snow" that can affect analog transmissions.
www.dtv.gov /whatisdtv.html   (296 words)

  
 BBC - Digital - Homepage
The whole country is going digital over the next few years.
Digital radio means easy tuning, more stations to choose from and better quality sound.
Find out what digital means and why it's different from the old way of broadcasting TV and radio.
www.bbc.co.uk /digital   (117 words)

  
 FCC Strategic Goals: Media - Digital Television (DTV)
TV Station Requests for Waiver of Digital Testing Pursuant to The Satellite Home Viewer Extension and Reauthorization Act of 2004 to be Filed by November 30, 2005 or February 15, 2007.
Ancillary or Supplementary Use of Digital Television Capacity by Noncommercial Licensees.
Digital Television Presentation from April 19, 2001 Open Meeting.
www.fcc.gov /dtv   (1325 words)

  
 Digital Television (DTV)
Digital Television (DTV) is a new broadcasting technology that will transform your television viewing experience.
Providing several program streams using the digital spectrum is called "multicasting." The number of programs a station can send using the digital spectrum depends on the level of picture detail, also known as "resolution," desired in each programming stream.
An Integrated DTV set is a digital television with a built-in digital receiver and decoder.
www.fcc.gov /cgb/consumerfacts/digitaltv.html   (1319 words)

  
 Digital Television   (Site not responding. Last check: 2007-10-21)
It is intriguing to think of staff cutting stories directly on the new digital hardware and the technical crew simply pulling all the playback from the server at once, but it simply won't happen without investments in staff training, new workflow models and a serious amount of rehearsal.
Most stations are working to meet their digital deadline, but some are filing waivers with the FCC due to special circumstances.
Digital sets are expensive and often lack digital receivers.
www.rtnda.org /technology/gdtrw.shtml   (1496 words)

  
 EFF: DeepLinks
The driver of digital TV legislation in the House is Joe Barton, Chairman of the Commerce Committee.
EFF believes consumers deserve better than to be told "tough luck"--they deserve to be able to use digital television content on the device of their choice, including those they've already purchased.
Televisions in American households are getting bigger and bigger, and a low-resolution copy of 'Desperate Housewives' that looks OK on your laptop screen will look awful on your new 50-inch rear projection TV or 40-inch plasma flat-panel.
www.eff.org /deeplinks/archives/cat_digital_television.php   (6110 words)

  
 Reason: Prisoners of Digital Television: A misadventure in high-tech regulatory policy -- and a Harry Potter Fix
Tuner mandates, such as the FCC’s recent requirement that all high-definition televisions (HDTVs) carry both analog and digital TV-signal receivers, mean an added expense per unit at a time when the industry is hoping economies of scale will reduce their costs and get more buyers into stores for crisper, even "cinema-quality," TV displays.
Meanwhile, one looming problem has not even begun to be addressed: In-the-field tests of television sets equipped with digital tuners suggest that DTV reception -- at least under the technical standard digital broadcasters are currently required to use, dubbed 8VSB -- is not as reliable as analog broadcast reception.
Those that wanted to continue analog broadcasting but continue to build out to, or experiment with, digital broadcasting could choose to buy or license additional spectrum, more of which should be available once the "loaned" spectrum has been reclaimed by the Commission, acting as a proxy for the general public.
www.reason.com /0304/fe.mg.prisoners.shtml   (4029 words)

  
 Digital Television | WTIU
Digital technology is often more compact, efficient, and higher quality than previous devices.
Public broadcasters will use their digital spectrum to ensure that all Americans have access to high-quality education services and noncommercial programming in the digital era.
Regardless of whether a program is sent to consumers digitally, such as with many DBS services, consumers still must purchase a new digital receiver in order to view the program digitally.
www.indiana.edu /~radiotv/wtiu/digital.html   (1334 words)

  
 Digital TV   (Site not responding. Last check: 2007-10-21)
This allowed transmission of different digital signals, from 480 to 1080 interlaced lines of resolution (but not 1080 progressive lines), and from 640x480 dpi (300,000 pixels) at 4:3 normal screen ratio to 1920x1080 dpi (2 million pixels) at 16:9 widescreen ratio.
In August, RCA introduced the DCT100 digital receiver for $649 that allowed digital and analog signals to be viewed on any set.
Terrestial digital television broadcasting began in November using the 8-VSB standard recommended by ATSC and approved by the FCC in 1996.
history.acusd.edu /gen/recording/television2.html   (480 words)

  
 Digital Television DVB-T COFDM and ATSC 8-VSB
Television has not really changed very much since its first introduction in the 1950's.
Now some 50 years later we are on the verge of a revolution ~ a total change in the technology, the programming and the media that will transform the entertainment industry forever.
Also included are detailed descriptions of the operation of the digital receiving devices, or set top boxes, used for the reception of both the standard and the high definition television formats.
digitaltvbooks.com   (267 words)

  
 Digital Set-Top Boxes & Integrated Digital Television Systems   (Site not responding. Last check: 2007-10-21)
Digital set-top boxes (DSTBs) receive and decode television broadcasts from satellite, cable, and/or terrestrial sources.
Integrated digital televisions (DTVs) have built-in digital tuners, demodulators, and source decoders, so they do not require digital set-top boxes that receive digital broadcasts.
In fact, selected cable television service providers, networks, and local terrestrial TV stations are concurrently transmitting both SD and HD content.
www.altera.com /end-markets/consumer/dtv/csm-digitaltv.html   (607 words)

  
 Consumer Broadband and Digital Television Promotion Act   (Site not responding. Last check: 2007-10-21)
S. To regulate interstate commerce in certain devices by providing for private sector development of technological protection measures to be implemented and enforced by Federal regulations to protect digital content and promote broadband as well as the transition to digital television, and for other purposes.
To regulate interstate commerce in certain devices by providing for private sector development of technological protection measures to be implemented and enforced by Federal regulations to protect digital content and promote broadband as well as the transition to digital television, and for other purposes.
(8) The secure protection of digital content is a necessary precondition to the dissemination, and on-line availability, of high quality digital content, which will benefit consumers and lead to the rapid growth of broadband networks.
www.cryptome.org /broadbandits.htm   (2116 words)

  
 Aerial Installations in London. Digital TV Aerial Installations. High Gain TV Aerials for Freeview. Independent ...
Digital satellite channels will be beamed down from a new Astra digital satellite.
Digital cable channels will be transmitted via the existing cable TV lines.
Digital TV can improve the picture quality over the existing analogue TV and will offer an enormous increase in consumer choice and interactive services.
www.digitize.co.uk /digital.htm   (843 words)

  
 Digital Television
The best guess is that half of American households will have a digital TV by 2009.
DBS services are already using digital signals and taking market share from cable.
The lack of a digital standard means incompatibility problems for computer monitors.
www.bethel.edu /~socsco/ComTech/DigitalTV.html   (641 words)

  
 UK Digital Television
Digital Teletext - Information service with news, sport, travel offers, UK TV listings, weather, interviews, film and theatre reviews and net issues.
Digital Television Group Activities - Latest news on various digital broadcast fronts.
Digital TV UK - News and information for ONdigital, Sky Digital and Digital Cable users.
www.ability.org.uk /uk_digital_television.html   (425 words)

  
 Digital TV - A Cringely Crash Course
I'm Robert X. Cringely, host of PBS's introduction to the future of television, "Digital TV: A Cringely Crash Course." If you haven't heard, television is going digital, and how we watch television is going to change forever.
The history of television is short, but compared to the telephone and the computer, it hasn't kept up with the advance of technology.
HDTV is going to update television and take it into the next century.
www.pbs.org /opb/crashcourse   (133 words)

  
 Digital Television Production Schools by Career Training Guide
This page lists schools and colleges offering digital television production courses, digital television production programs, and digital television production degrees.
Online digital television production classes are available as well.
If you are a beginner or a seasoned professional, you can enhance your career opportunities with an associate's or bachelor's degree from The Art Institute Online.
www.careertrainingguide.net /digitaltelevisionproduction.htm   (323 words)

  
 Digital Television   (Site not responding. Last check: 2007-10-21)
Digital television: researching the feasibility of bringing digital television to the dorms at the Unversity of Washington; information on the current cable contract at the university and on the cable contract with the state.
The FCC was established by the Communications Act of 1934 and is charged with regulating interstate and international communications by radio, television, wire, satellite and cable.
The arrangement is by call number, from A (at the east end, near the Copy Center) to Z (at the far west end).
www.lib.washington.edu /business/tlc/archive/digtv.html   (2499 words)

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