Set-Top-Box Lexicon: Digital Hardware

CIMM's Set-Top-Box Data Lexicon is a compilation of terms and definitions associated with Set-Top Box data and its measurement. This Word-A-Week column highlights a term and definition from the Lexicon to help forge a common language for Set-Top Box data usage and expedite the roll-out of the data for its many industry applications.

We could fill up several columns with definitions that apply to the concept of digital media. This week we focus on digital hardware -- from the server to the box to the remote:

Digital Video Server

See also: DVR

CIMM DEFINITION : A robust dedicated computer at a central location that instantly broadcasts specific digital video streams to a television viewer upon receiving command requests through a Video On-Demand application. (Source: Nielsen)

2 : A robust, dedicated computer at a central location that receives command requests from the television viewer through a Video On-Demand application. Once it receives this request, it then instantly broadcasts specific digital video streams to that viewer. SeaChange and Concurrent are examples of companies that provide this kind of equipment and software services. (Source:



NOTE - An ad inserter is a DVS and works with linear TV. (Source: Invidi)


Digital Converter Box

See also: Converter Box, Digital-to-Analog Converter Box

CIMM DEFINITION : A device that receives a digital transmission and converts that signal to analog format so that it can then be received and viewed on an analog television set. Normally does not refer to satellite. (Source: Wikipedia) Definition currently under review by CableLabs.

2 : An electronic device that converts the digital television signal into an analog format, making it viewable on analog TV sets. (Source: Nielsen)


Digital Remote

CIMM DEFINITION : Specific to the particular platform it supports.  Almost all remotes support orthogonal navigation of Up / Down / Right / Left arrows with a center Select / Okay key.  Most digital remote also have a number pad (for easy channel entry) and function keys to control Channel Up / Down, Mute, Volume Up / Down, etc., Also usually have function keys for FF, REW, Pause, etc., Different access keys can also be used, like in the SA platform there are color coded shapes that do different functions, the TV Guide / Motorola navigation doesn't use these.

Please refer to the CIMM Lexicon online at for additional information on these and other terms.



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