IPTV Dictionary
More than 10,256 Terms and Definitions 

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	IPTV Dictionary. Over 10,000 of the latest Internet TV and Digital TV Terms and Definitions along with            + 400 diagrams and photographs!!!
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Sample Definitions

Addressable Advertising- Addressable advertising is the communication of a message or media content to a specific device or customer based on their address. The address of the customer may be obtained by searching viewer profiles to determine if the advertising message is appropriate for the recipient. The use of addressable advertising allows for rapid and direct measurement of the effectiveness of advertising campaigns.
Advanced Television Services-Advanced Television Services are television services that are provided using alternative technologies (such as digital television). Advanced television services are defined the report: "Advanced Television Systems and Their Impact Upon the Existing Television Broadcast Service", MM Docket 87-268.
Analog Telephone Adapter (ATA)-Analog Telephone Adapter (ATA) is a device that converts analog telephone signals into another format (such as digital Internet protocol). These adapter boxes may provide a single function such as providing Internet telephone service or they may convert digital signals into several different forms such as audio, data, and video. When adapter boxes convert into multiple information forms, they may be called multimedia terminal adapters (MTAs) or integrated access devices (IADs).
Analog telephone adapters (ATA) must convert both the audio signals (voice) and control signals (such as touch tone or hold requests) into forms that can be sent and received via the Internet.
Analog Television Adapter (ATVA)-Analog Television Adapter (ATVA) is a device that converts digital multimedia signals (such as MPEG) into analog television signals (such as NTSC or PAL). These adapter boxes may provide a single function such as providing Internet television service or they may convert digital signals into several different forms such as audio, data, and video. When adapter boxes convert into multiple information forms, they may be called multimedia terminal adapters (MTAs) or integrated access devices (IADs).
Analog television adapters (ATA) must convert video, audio, and control signals (such as requests for changing channels) into forms that can be sent and received via data networks such as the Internet.
Data Multicasting-Data multicasting is the process of transmitting media channels to a number of users through the use of multiple distributed channels.
Digital Television (DTV)-A process or system that transmits video images through the use of digital transmission. The digital transmission is divided into channels for digital video and audio. These digital channels are usually compressed. Video compression commonly uses one of the motion picture experts group (MPEG) standards to reduce the data transmission rate by a factor of 200:1.
Digital Rights Management (DRM)-Digital rights management is a system of access control and copy protection used to control the distribution of digital media. DRM involves the control of physical access to information, identity validation (authentication), service authorization, and media protection (encryption).
Digital Video-Digital video is a sequence of picture signals (frames) that are represented by binary data (bits) that describe a finite set of color and luminance levels. Sending a digital video picture involves the conversion of a scanned image to digital information that is transferred to a digital video receiver. The digital information contains characteristics of the video signal and the position of the image (bit location) that will be displayed.
Home Media Networks (HMN)-A home media network is the equipment and software that is used to transfer data and other media in a customer's facility or home. A home network may be used to connect terminals (computers) and media devices (such as TV set top boxes) to each other and to wide area network connections. Home networks may use a mix of wired Ethernet, wireless LAN, powerline, coaxial and phone lines to transfer data or media.
Interactive Television (ITV)-Interactive television ( Internet TV ) has three basic types: "pay-per-view" involving programs that are independently billed, "near video-on-demand" (NVOD) with groupings of a single film starting at staggered times, and "video-on-demand" (VOD), enabling request for a particular film to start at the exact time of choice. Interactive television offers interactive advertising, home shopping, home banking, e-mail, Internet access, and games.
Internet Protocol Broadcast (IP Broadcast)-A data packet that uses a frame address mask of 255.255.255.255 to identify it is intended for broadcast distribution. This allows devices within the network to identify broadcast messages and inhibits routers from constantly circulating packets through the network. The use of the address mask inhibits the normal transmission of the data packet through routers because routing protocols use the zeros at the end of the subnet mask number to identify the subnet. Because of the subnet mask (11111111.11111111.11111111.11111111 equals 255.255.255.255), the end of the address does not contain any zeros.
Internet Protocol Television (IPTV)-Internet protocol television is the process of providing television (video and/or audio) services through the use Internet protocol (IP) networks. These IP networks initiate, process, and receive voice or multimedia communications using IP protocol. These IP systems may be public IP systems (e.g. the Internet), private data systems (e.g. LAN based), or a hybrid of public and private systems.
Internet Protocol Video (IP Video)-IP video is the transfer of video information in IP packet data format.
Internet Television Service Provider (ITVSP)-Internet Television Service Providers (ITVSPs) are companies that provide television or video services that connect through the Internet or other types of data networks. ITVSPs setup and manage television services between multimedia computers, televisions with adapters, or integrated devices and media sources.
Internet TV (iTV)-Internet TV is a Television service that is provided through the Internet.
Internet Video-Internet video is the transfer of video information through the Internet in IP packet data format.
IP Multicast-An Internet protocol that is used to broadcast the same message to multiple recipients. An IP multicast message is transferred to all the members within pre-defined group.
Internet TV -The transmission of digital video and audio through data networks, usually through the Internet. These services may be on a subscription basis (paid for by the recipient) or may be funded by commercials or government agencies. Broadcasters transmit multimedia data signals to end users or to distribution points that redirect the digital television signals to end users.
IPTV Testing-The performing of measurements or observations of a device, system or service that provides television service through data networks to validate its successful operation and/or performance.
Motion Picture Expert Group (MPEG)-Motion picture experts group (MPEG) standards are digital video encoding processes that coordinate the transmission of multiple forms of media (multimedia). Motion picture experts group (MPEG) is a working committee that defines and develops industry standards for digital video systems. These standards specify the data compression and decompression processes and how they are delivered on digital broadcast systems.
Packet Video-Packet video is the transfer of video information in packet data format.
Personal Media Channel (PMC)-A personal media channel is a communication service that allows a media user (e.g. viewer) to select and view media (typically video or music) from a variety of media sources.
Set Top Box (STB)-An electronic device that adapts a communications medium to a format that is accessible by the end user. Set top boxes are commonly located in a customers home to allow the reception of video signals on a television or computer.
Telephony Over Internet Protocol (ToIP)-A process of providing telephony services using Internet protocol (IP).
Television Commerce (T-Commerce)- Television commerce is a shopping medium that uses a television network to present products and process orders.
Television Gateway-A television gateway is a communications device or assembly that transforms audio and video that is received from a television system (e.g. broadcast television) into a format that can be used by a different network. A television gateway usually has more intelligence (processing function) than a data bridge as it can select the audio and video compression coders and adjust the protocols and timing between two dissimilar computer systems or video over data networks.
Video Conferencing-A process of conducting a face-to-face meeting between two or more people in different locations through the use of telecommunications circuits and equipment that allows video and audio communications. Video conferencing usually requires real-time two-way transmission of audio and video communications between two or more locations. Transmitted video images may be in the form of full TV-quality images or freeze frame still images, where the picture is repainted every few seconds.
Video On Demand (VOD)-A service that provides end users to interactively request and receive video services. These video services are from previously stored media (entertainment movies or education videos) or have a live connection (news events in real time).
Video Server (VS)-The video server is an application server that provides video and/or specialized television capabilities. Video servers receive requests for video and/or media delivery, find the matching media, and deliver the video program as requested.
Video Streaming-A real-time system for delivering video, usually along with synchronized accompanying audio, typically over the internet. Upon request, a server system will deliver a stream of video and audio (both compressed) to a client. The client will receive the data stream and (after a short buffering delay) decode the video and audio and play them in synchronization to a user.