Datacasting is the transmission of data not related to the audio or video portion of the signal along with the broadcast program. This permits viewers to download data (text, graphics, maps, services, etc.) to specially equipped computers, cache boxes, set-top boxes or DTV receivers.

Digital television allows for the transmission of not only digital sound and images, but also digital data (text, graphics, maps, services, etc.). This aspect of DTV is the least developed; but soon, applications will likely include interactive program guides, sports statistics, stock quotes, retail ordering information, and the like. Datacasting is not two- way, but using it in combination with a simple dial-up modem, simple responses placing orders for products or answering viewer polls will be possible.

This will allow licensed media companies to send new television services such as textual news and weather bulletins over the airwaves.

Jargon referring to the propagation of information from one source to another source Demodulation A method for extracting digital information stored in a specific pattern on a radio frequency (RF) signal.

The broadcast of information and other services using a digital television channel. Broadcasters provide additional data or services through their DTV channels. For example, as a menu of choices on the TV or computer screen to find out more about what is being broadcast.

Ancillary material delivered in conjunction with programs to supplement, enhance, and expand the educational content of programs and services. This could be in the form of program guides, printed materials, or Internet Web pages.

Digital television allows for the transmission of not only digital sound and images, but also digital data (text, graphics, maps, services, etc.). This aspect of DTV is the least developed; but in the near future, applications will likely include interactive program guides, sports statistics, stock quotes, retail ordering information, and the like. Datacasting is not two-way, although most industry experts expect that set-top box manufacturers will create methods for interaction. By integrating dial-up Internet connections with the technology, simple responses—placing orders for a necktie like Jim Lehrer’s or answering viewer polls—will be possible using a modem and either an add-on keyboard or the set-top’s remote control.

The DTV technology that allows KAET to use leftover bandwith not being used to transmit television programs to transmit data. This data could include transcripts or web links, video, audio, text or graphics. This information could then be decoded by specially equipped computers, set-top boxes, or DTV receivers. DTV's broadband channel allows information to be downloaded about 600 times faster than a personal computer modem.

A technique by which additional program data or interactive information is transmitted along with a program, such as catalog pages or Web content.

Broadcast of digital information over networks to receivers and players. Datacasting is sometimes used as an alternative to traditional video broadcasting, because the receivers and player units can have the "intelligence" to customise their playback programming for the location and intended audience. The system of receivers set up to receive messages from a particular datacast are known as Datacasting Networks, which are a venue for advertisers.

While broadcasting in HDTV or multicasting in SDTV, digital technology allows broadcasters to use leftover bandwidth to transmit additional program material or non-program related resources, such as video, audio, text, graphics, maps and services, to specially equipped computers, cache boxes, set-top boxes, or DTV receivers. This is called datacasting. DTV's broader bandwidth channel allows information to be downloaded at a transmission rate currently 600 times that of a personal computer modem.

The broadcast of information and other services using a digital television channel. Broadcasters can use their DTV channels to offer additional data or services. For example, a travel program might be transmitted along with data consisting of lodging, sightseeing and transportation information, which the viewer can access while watching the program. Teachers will be able to access lesson plans and learning materials while watching TV. This information might appear as a menu of choices on the TV or computer screen, which the viewer can read on the screen or print out for future reference. One of the major benefits of a digital broadcast system is the ability not only to send pictures and sound, but also to send data. Program related data enhances the television show you are currently watching. FOR instance, Real Science could include science quizzes for teachers, periodic table graphs, a molecule building game, audio clips of various animal vocalizations, or anything else you can imagine that can be transmitted digitally.

The inexpensive process of sending large amounts of data to specific televisions and computers via a digital television signal.()

Enhanced options offered with some digital programming to provide additional program material or non-program related resources, allowing viewers the ability to download data (video, audio, text, graphics, maps, services) to specially equipped computers, cache boxes, set-top boxes, or DTV receivers.

another term for broadcasting or narrowcasting. The delivery of any type of media over a network.

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.