AJA FS2 - Manual (Page 218)

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221 FS2 Installation and Operation Manual —
digital format for transmission, and also converts digital signals back into an analog
format; depending on the application, it can also have alternate meanings.)
Crossconvert Refers to format conversion from one video standard to a similar video standard, such
as 720p HD to 1080i HD.
Decoder See “codec.” A device or program that translates encoded data into its original format
(i.e., it decodes the data.).
Deinterlacing The process of converting an interlaced-scan video signal (where each frame is split
into two sequential fields) to a progressive-scan signal (where each frame remains
whole). Advanced de-interlacers include a feature called 3-2 pulldown processing.
Sometimes de-interlacing is referred to as "line-doubling."
Downconvert Refers to format conversion from a higher resolution input standard to a lower one.
For example, converting a 1080 input to a 525 display (HD to SD).
Dual-link An HD-SDI video format that achieves a 2.970 Gbit/s data rate by splitting a video
signal across two separate 1.5 Gb wires (links).
DTV (Digital
Television) DTV stands for Digital Television. It refers to all digital television formats and standards
established by the Advanced Television Systems Committee (ATSC). Two basic DTV
standards are HDTV (high-definition television) and SDTV (standard-definition
television)
DVI A consumer digital video interface for computers.
Embedding Refers to inserting a digital signal into the blank parts of another digital signal, such as
embedding digital audio into the horizontal blanking interval of a digital video signal.
Frame rate The rate at which frames are displayed per second. Frame rates are used in
synchronizing audio and pictures for video and film. In motion pictures and
television, the frame rates are standardized by SMPTE (Society of Motion Picture and
Television Editors). SMPTE frame rates of 24, 25 and 30 frames per second are very
common, with a great number of others also used. Frame rates have different
applications and uses in different workflows. For motion pictures 24 frames per
second is common, while in standard definition television 30 frames per second is
common in the US (NTSC). Higher frame rates produce smoother motion but also
create larger file storage requirements.
Frame Sync A circuit that automatically adjusts video signal timing to match the timing of a
reference signal, such as the signal from a genlock circuit.