Term

IP multicast virtual channel

Posted on April 1, 2015 in

An ATSC virtual channel including an IP multicast service. The virtual channel may include other video and audio elementary streams.

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IP multicast stream

Posted on April 1, 2015 in

An IP stream in which the destination IP address is in the IP multicast address range.

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IP multicast service

Posted on April 1, 2015 in

The portion of an A/90 data broadcast service comprising the IP multicast sessions and their announcements and descriptions.

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IP multicast data stream

Posted on April 1, 2015 in

A collection of IP packets with the same IP multicast address and port number.

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IP multicast application buffer

Posted on April 1, 2015 in

The buffer following the smoothing buffer of an MPEG-2 program element of stream_type 0x0D. The purpose of this buffer is to collect only the IP Multicast data bytes out of the smoothing buffer and to re-assemble them into complete datagrams.

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intra-coded picture

Posted on April 1, 2015 in

Pictures that are coded using information present only in the picture itself and not depending on information from other pictures. I-pictures provide a mechanism for random access into the compressed video data. I-pictures employ transform coding of the pel blocks and provide only moderate compression.

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interstitial

Posted on April 1, 2015 in

A special kind of work of typically less than 5 minutes inserted between program segments. May comprise advertisements, promotions, or other short program material

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interoperable object reference

Posted on April 1, 2015 in

A data structure IOP::IOR that contains the information necessary to locate an object in a network; originally developed as part of the CORBA specification, later specialized by the ISO DSM-CC Standard to the case of an MPEG-2 broadcast network.

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interactive content service provider

Posted on April 1, 2015 in

The entity that provides services to ITV clients using a two-way communication channel.

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interaction channel provider

Posted on April 1, 2015 in

The entity that provides access to inter-network connectivity to ITV clients. An Internet Service Provider may serve as an Interaction Channel Provider.

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