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Datacasting is the Note: broadcasting is also the old term for hand sowing. ...broadcasting of A datum is a statement accepted at face value (a given). Data is the plural of datum. ...data over a wide area via 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. ...radio waves. It most often refers to supplemental Information is a term with many meanings depending on context, but is as a rule closely related to such concepts as meaning, knowledge, instruction, communication, representation, and mental stimulus. ...information sent by A television station is a type of radio station that broadcasts both audio and video to television receivers in a particular area. ...television stations along with Digital television (DTV) uses digital modulation and compression to broadcast video, audio and data signals to television sets. ...digital television, but may also be applied to A digital system is one that uses discrete values rather than a continuous spectrum of values: compare analog. ...digital A signal may refer to: an abstract element of information, or, more exactly, usually a flow of information (in either one or several dimensions). ...signals on Analog television encodes picture information by varying the voltages and/or frequency of the signal. ...analog TV or Radio transmission diagram and electromagnetic waves Radio is a technology that allows the transmission of signals by modulation of electromagnetic waves with frequencies below those of light. ...radio. It generally does not apply to data which is inherent to the medium, such as The Program and System Information Protocol is the protocol used in the ATSC digital television standard for carrying data about each channel. ...PSIP data which defines In telecommunications, a virtual channel is a channel designation which differs from the actual radio channel or frequency which the signal travels. ...virtual channels for DTV or Direct broadcast satellite, or DBS, is a relatively recent development in the world of television distribution. ...direct broadcast satellite systems; or to things like A cable modem is a special type of modem that is designed to modulate a data signal over cable television infrastructure. ...cable modem or A satmodem is a modem used to establish data transfers using a communications satellite as a relay. ...satellite modem, which use a completely separate channel for data.
Datacasting often provides News is the reporting of current events usually by local, regional or mass media in the form of newspapers, television and radio programs, or sites on the World Wide Web. ...news, Composite satellite image showing the progress of a hurricane weather system approaching the east coast of America Weather comprises all the various phenomena that occur in the atmosphere of a planet. ...weather, Western vehicular traffic is generally organized, flowing in lanes of travel for a particular direction, with interchanges, traffic signals, or signage at intersectons to facilitate the orderly and timely flow of traffic. ...traffic, A stock market is a market for the trading of publicly held company stock and associated financial instruments (including stock options, convertibles and stock index futures). ...stock market, and other Information is a term with many meanings depending on context, but is as a rule closely related to such concepts as meaning, knowledge, instruction, communication, representation, and mental stimulus. ...information which may or may not relate to the program[s] it is carried with. It may also be There are several conceptual views of interactivity, the most general being the contingency view. ...interactive, such as Gaming is an umbrella term that includes a number of special hobby game types: Board games Collectible card games Computer games and video games Tabletop wargaming (i. ...gaming, In commerce, a retailer buys goods or products in large quantities from manufacturers or importers, either directly or through a wholesaler, and then sells individual items or small quantities to the general public or end user customers, usually in a shop, also called store. ...shopping, or Education encompasses teaching and learning specific skills, and also something less tangible but more profound: the imparting of knowledge, good judgement and wisdom. ...education. An The Extensible Markup Language (XML) is a W3C recommendation for creating special_purpose markup languages. ...electronic program guide is ususally included, although this stretches the definition somewhat, as this is often considered inherent to the digital broadcast standard.
The The Advanced Television Systems Committee (ATSC) is the group that helped to develop the new digital television standard for the United States, also adopted by Canada, Mexico and South Korea and being considered by other countries. ...ATSC, DVB, short for Digital Video Broadcasting, is a suite of internationally accepted, open standards for digital television maintained by the DVB Project, an industry consortium with more than 300 members, and published by a Joint Technical Committee (JTC) of European Telecommunications Standards Institute (ETSI), European Committee for Electrotechnical Standardization (CENELEC...DVB and Integrated Services Digital Broadcasting (ISDB) is the digital television (DTV) and digital audio broadcasting (DAB) format. ...ISDB standards allow for Broadband in general refers to data transmission where multiple pieces of data are sent simultaneously to increase the effective rate of transmission. ...broadband datacasting via DTV, though they do not necessarily define how. The In television, overscan is the area at the edge of a video signal which is not normally seen by the viewer. ...overscan and 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. ...VBI are used for analog TV, for moderate and low bandwidths (including Closed captioning allows deaf, hard of hearing / hearing-impaired, and other people to read, through captions, a transcript of the audio portion of a video that they cannot hear. ...closed captioning in the VBI) respectively. DirectBand is a Microsoft_owned trademark for a communications technology for continuously delivering time, sports, weather, news and relevant web_based information to wristwatches. ...DirectBand and RDS is an abbreviation for all of the following: Radio Data System Respiratory distress syndrome Royal Dublin Society Le Réseau des sports (RDS) Inc. ...RDS/ Radio Data System, or RDS, is a standard for sending small amounts of digital information using conventional FM radio broadcasts. ...RBDS are medium and narrow A subcarrier is separate analog or digital signal carried on a main radio transmission, which carries extra information such as voice or data. ...subcarriers used for analog FM radio. The Eureka 147 is a protocol for digital radio broadcasting originally developed in Europe, but now being deployed in many countries around the world. ...EUREKA 147 and HD_Radio is a marketing catch_phrase used for IBOC, the terrestrial digital radio standard in the United States. ...HD Radio standards both allow for datacasting on Digital radio describes radio technologies which carry information as a digital signal. ...digital radio, defining a few basics but also allowing for later expansion.
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