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Article Type: Definition

Tokenized URL

URL that has a token to control access to the resource specified by the URL. Token is the signature mechanism for URL to manage access control in this context.

Trick Play

Trick play is a feature of digital video systems that mimic the visual feedback given during fast-forward, pause and rewind operations that were provided by analog systems, such as VCRs and in multiple speeds.

Unicast

Unicast delivery in IP networks involves a 1:1 data transmission scheme where one host or endpoint is communicating with one other host or endpoint exclusively.  Contrast with broadcast or multicast transmission models. Unicast has been heavily used in video with the arrival of ABR streaming, leveraging the HTTP protocol.

Transport Stream

Transport Stream is a container format encapsulating packetized elementary streams of audio, video and other data for transmission and storage purposes. It is the main format in digital satellite, cable and IPTV.

URL Tokenization

The process by which a token is generated and applied to the URL within the HTTP structure.

User Datagram Protocol

User Datagram Protocol (UDP) is one of the main transport protocols used in IP networks. It corresponds to Layer 4 in the OSI 7-layer model of the networking stack.  It is a “stateless” or “connectionless” protocol which means that features such as retransmission and flow control, if desired, must be . . . Read more

Video on Demand

VOD systems allow users to select and watch video content over a network as part of an interactive television system. VOD systems either “stream” content, allowing viewing while the video is being downloaded, or “download” it so that the whole program is brought to a device before viewing starts. All . . . Read more