Abbreviation for very high frequency. See electromagnetic spectrum.

Pertaining to circuit performance prediction and description that allows circuit parameters to be predetermined and the circuit to be designed to meet established criteria by analyzing actual, theoretical, and calculated losses.

1. An electrical signal containing timing (synchronization), luminance (intensity), and often chrominance (color) information that, when displayed on an appropriate device, gives a visual image or representation of the original image sequences.
Note: Correlated audio is included and usually implied.
2. Pertaining to the sections of a television system that carry television signals, either in unmodulated or modulated form.
3.… (Read More →)

See codec.

An audio narration for television viewers who are blind or visually disabled, which consists of verbal descriptions of key visual elements in a television program, such as settings and actions not reflected in dialog. [FCC]
Note: Narrations are usually inserted into the program's naturally occurring pauses, and are typically provided through the secondary audio programming channel. [After FCC]

Synonym visual display unit. See monitor.

Synonym visual display terminal. See monitor.

See frame.

A sequence of video frames. [T1.80
1. 02-1996]

Refers, in the context of this document, to all forms of on-demand content that are streamed at the request of a subscriber. This can include, for example, movies, music, radio talk shows, distance learning, games, etc.