Term

vertical ancillary

Posted on April 1, 2015 in

In a broadcast facility, in uncompressed SDI, the Vertical ANCillary (VANC) data space is used for VBI and other non-video signals.

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variable bit rate

Posted on April 1, 2015 in

Operation where the bit rate varies with time during the decoding of a compressed bit stream.

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value

Posted on April 1, 2015 in

Used in XML to indicate the number or characters entered for a particular parameter or variable.

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valid XML

Posted on April 1, 2015 in

A valid XML document, in addition to being well formed, conforms to all the constraints imposed by a Schema. It does not contain any tags that are not permitted by the schema, and the order of the tags conforms to the schema’s specifications.

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UTC

Posted on April 1, 2015 in

Coordinated Universal Time, the basis for the worldwide system of time. Determined using atomic clocks and maintained by the US Naval Observatory and other laboratories around the world. Adjusted occasionally with leap seconds to maintain synchronization with the solar day based on the rotation of the earth

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user agent

Posted on April 1, 2015 in

An embodiment of a declarative application environment.

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user

Posted on April 1, 2015 in

The reader and/or implementer of an ATSC Standard.

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unprivileged operation

Posted on April 1, 2015 in

An operation which is not controlled by the security framework.

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uniform resource identifier

Posted on April 1, 2015 in

URI Uniform Resource Identifiers (URIs) provide a simple, unified and extensible mechanism for identifying a resource. The URI framework [URI] provides a way to concatenate a base-URI with a relative-URI to form an absolute URI identifying a resource.

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unbounded resource

Posted on April 1, 2015 in

An application resource of indeterminate length; e.g., a data stream.

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