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Datacasting (data broadcasting) is the broadcasting of data over a wide area via radio waves. It most often refers to supplemental information sent by television stations along with digital television, but may also be applied to digital signals on analog TV or radio. It generally does not apply to data which is inherent to the medium, such as PSIP data which defines virtual channels for DTV or direct broadcast satellite systems; or to things like cable modem or satellite modem, which use a completely separate channel for data. Broadcasting is the distribution of audio and/or video signals which transmit programs to an audience. ...
For other uses, see Data (disambiguation). ...
Radio frequency, or RF, refers to that portion of the electromagnetic spectrum in which electromagnetic waves can be generated by alternating current fed to an antenna. ...
The ASCII codes for the word Wikipedia represented in binary, the numeral system most commonly used for encoding computer information. ...
This article is about a television transmitting location or company. ...
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 used by analog (traditional) TV. DTV uses digital modulation data, which is digitally compressed and requires decoding by a specially designed television set, or a...
A digital system is one that uses discrete values (often electrical voltages), especially those representable as binary numbers, or non-numeric symbols such as letters or icons, for input, processing, transmission, storage, or display, rather than a continuous spectrum of values (ie, as in an analog system). ...
In telecommunication, signalling (or signaling) has the following meanings: The use of signals for controlling communications. ...
Analog television encodes picture information as an analog signal, that is, by varying the voltages and/or frequencies of the signal. ...
The Program and System Information Protocol is the protocol used in the ATSC digital television standard for carrying data about each channel. ...
In telecommunications, a virtual channel is a channel designation which differs from the actual radio channel or frequency which the signal travels. ...
Direct broadcast satellite (DBS) is a term used to refer to satellite television broadcasts intended for home reception, also referred to as direct-to-home signals. ...
An outdated model of the Motorola Surfboard cable modem A cable modem is a type of modem that provides access to a data signal sent over the cable television infrastructure. ...
It has been suggested that this article or section be merged with satellite dish. ...
Datacasting often provides news, weather, traffic, stock market, and other information which may or may not relate to the program[s] it is carried with. It may also be interactive, such as gaming, shopping, or education. An electronic program guide is usually included, although this stretches the definition somewhat, as this is often considered inherent to the digital broadcast standard. For other uses, see News (disambiguation). ...
For the geological process, see Weathering or Erosion. ...
This article needs additional references or sources for verification. ...
A stock market is a market for the trading of company stock, and derivatives of same; both of these are securities listed on a stock exchange as well as those only traded privately. ...
The ASCII codes for the word Wikipedia represented in binary, the numeral system most commonly used for encoding computer information. ...
There are several conceptual views of interactivity, the most general being the contingency view. ...
“Computer and video games†redirects here. ...
Shopping is the examining of goods or services from retailers with intent to purchase. ...
The Sky Digital EPG in the United Kingdom and Republic of Ireland. ...
The ATSC, DVB and ISDB standards allow for broadband datacasting via DTV, though they do not necessarily define how. The overscan and VBI are used for analog TV, for moderate and low bandwidths (including closed captioning in the VBI) respectively. DirectBand and RDS/RBDS are medium and narrow subcarriers used for analog FM radio. The EUREKA 147 and HD Radio standards both allow for datacasting on digital radio, defining a few basics but also allowing for later expansion. “ATSC†redirects here. ...
Official DVB logo, found on compliant devices DVB, short for Digital Video Broadcasting, is a suite of internationally accepted open standards for digital television. ...
Integrated Services Digital Broadcasting (ISDB) is the digital television (DTV) and digital audio broadcasting (DAB) format. ...
Broadband in telecommunications is a term that refers to a signaling method that includes or handles a relatively wide range of frequencies, which may be divided into channels or frequency bins. ...
Please wikify (format) this article as suggested in the Guide to layout and the Manual of Style. ...
The vertical blanking interval (VBI) is an interval in a television or VDU signal that temporarily suspends transmission of the signal for the electron gun to move back up to the first line of the television screen to trace the next screen field. ...
A commonly-used symbol indicating that a program or movie is closed-captioned. ...
DirectBandâ„¢ is a North American wireless datacast network owned and operated by Microsoft. ...
RDS is an abbreviation for all of the following: Radio Data System Random Dot Stereogram Respiratory distress syndrome Romanian Data Systems Royal Dublin Society Le Réseau des sports Inc. ...
Radio Data System, or RDS, is a standard for sending small amounts of digital information using conventional FM radio broadcasts. ...
A subcarrier is separate analog or digital signal carried on a main radio transmission, which carries extra information such as voice or data. ...
Eureka 147 is a protocol for digital radio broadcasting originally developed in Europe, but now being deployed in many countries around the world. ...
HD Radio is an in-band on-channel (IBOC) digital radio system created by iBiquity for broadcasting via existing FM and AM radio stations. ...
This article needs to be cleaned up to conform to a higher standard of quality. ...
The term IP Datacasting (IPDC) is used in DVB-H for the technical elements required to send IP packets over DVB-H broadband downstream channel combined with a return channel over a mobile communications network such as GPRS or UMTS. The set of specifications for IP Datacast (phase1) was approved by DVB in October 2005. Internet Protocol Device Control (IPDC) is a specification for controlling hardware devices. ...
DVB-H (Digital Video Broadcasting - Handheld) is a technical specification for bringing broadcast services to handheld receivers. ...
The Internet Protocol (IP) is a data-oriented protocol used for communicating data across a packet-switched internetwork. ...
General Packet Radio Service (GPRS) is a Mobile Data Service available to users of Global System for Mobile Communications (GSM) and IS-136 mobile phones. ...
Universal Mobile Telecommunications System (UMTS) is one of the third-generation (3G) cell phone technologies. ...
Official DVB logo, found on compliant devices DVB, short for Digital Video Broadcasting, is a suite of internationally accepted open standards for digital television. ...
Datacasting Services around the World
Australia - See also: Digital television in Australia
Australian broadcast infrastructure company Broadcast Australia are undertaking a three year trial in Sydney of a datacasting service using the DVB-T system for use in Australia. Digital television in Australia commenced on January 1, 2001 and uses the DVB-T standard. ...
DVB-T stands for Digital Video Broadcasting - Terrestrial and it is the DVB European consortium standard for the broadcast transmission of digital terrestrial television. ...
The trial consists of a number of services on one standard 7MHz multiplex, collectively known as Digital Forty Four. A multiplex is a group of digital TV channels that are mixed together for broadcast. ...
Digital Forty Four is a trial service which was licensed by the Australian Broadcasting Authority (now the Australian Communications and Media Authority) in December 2003 to run for 3 years until late 2006. ...
The collection includes:
- A combined program guide for the free-to-air broadcasters (Channel 4)
- ABC news, sport, and weather items (Channel 41)
- Channel NSW (link) Government and Public Information, including real time traffic information and life surf webcam images (Channel 45)
- Australian Christian Channel (Channel 46)
- Expo Home Shopping (Channel 49) and
- Federal parliamentary audio broadcasts.
More recently a near-Australia wide broadcast of a datacasting channel called MyTalk has begun. Broadcasting as part of the multiplex on Southern Cross and Southern Cross Ten stations, it provides news, weather and other information, available free to anyone able to tune in. The stream consists of text applicable to the viewer's location and a 4:3 video window of broadcast TV from the relevant Southern Cross/Southern Cross Ten station. The NSW Government is undertaking a trial of a community information digital television service, Channel NSW (CNSW). ...
This article does not cite its references or sources. ...
Wikipedia does not yet have an article with this exact name. ...
Southern Cross Television, or Southern Cross, is an Australian television network available in Tasmania, Darwin, and regional South Australia. ...
Southern Cross Ten are a network of Network Ten affiliates in Queensland, New South Wales, the Australian Capital Territory, Victoria and South Australia. ...
Southern Cross Television, or Southern Cross, is an Australian television network available in Tasmania, Darwin, and regional South Australia. ...
Southern Cross Ten are a network of Network Ten affiliates in Queensland, New South Wales, the Australian Capital Territory, Victoria and South Australia. ...
Malaysia Malaysian multi-channel pay-TV operator, MiTV Corporation Sdn Bhd has launched its IP over UHF service in September 2005. The full digital broadcast capacity is being used to deliver IP services which such as multicast streaming and datacasting. MiTV Corporation Bhd is Malaysias second paid television operator. ...
South Africa Mindset Network has developed an IP satellite datacast platform for the distribution of educatinal and health content to sites around South Africa and increasingly throughout the rest of Africa as well. The model is a forward and store model allowing users of the platform to view content in an on-demand fashion. Content distributed in this way includes video content, print-based content (in the form of PDF files), as well as interactive computer-based multimedia content. Mindset Network is a non-profit organisation formed in 2002 to educate and improve health in South Africa. ...
PDF is an abbreviation with several meanings: Portable Document Format Post-doctoral fellowship Probability density function There also is an electronic design automation company named PDF Solutions. ...
Significantly, the model also includes access to a GPRS network that allows the receiving sites to communicate back to the Mindset central server. Communications include statistics about the physical health of the machine (e.g. power status, disk drive usage) as well as usage statistics indicating what content has been viewed.
The model also includes a distributed deployment of the Moodle LMS, allowing users to take assessments and then have the results transmitted via GPRS to the Mindset server for accreditation. Moodle is a free software e-learning platform (also known as a Course Management System (CMS), or Learning Management Systems (LMS), or Virtual Learning Environment (VLE)). It has a significant user base with 25,281 registered sites with 10,405,167 users in 1,023,914 courses (as of May...
See also Digital TV set-top box Interactive television describes a number of techniques which allow viewers to interact with television content as they view it. ...
DVB-H (Digital Video Broadcasting - Handheld) is a technical specification for bringing broadcast services to handheld receivers. ...
Multimedia Home Platform (DVB-MHP) is an open middleware system standard designed by the DVB project for interactive digital television. ...
UDcast is a leading provider of solutions enabling full IP over broadcast media. ...
Datacasting (data broadcasting) is the broadcasting of data over a wide area via radio waves. ...
// Multiprotocol Encapsulation, or MPE for short, is a Data link layer protocol defined by DVB which has been published as part of ETSI EN 301 192. ...
// The Unidirectional Lightweight Encapsulation (ULE) is a protocol for the transportation of network layer packets over MPEG-2 Transport Streams. ...
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