Cobalt Digital COMPASS 9084 HD_SD-SDI RGB Color Corrector - Manual (Page 11)

9084-OM (V4.4) 9084 PRODUCT MANUAL 1-7
Introduction
9084 Functional Description
Color Corrector
The 9084 color corrector converts the YCbCr SDI input video to the 4:4:4
RGB color space (where the color correction is applied), and then back to
YCbCr SDI on the output. Controls are available to adjust each RGB level
independently for both white levels (gain) and black levels (offset). Gamma
can also be independently adjusted for each RGB channels. Various controls
can be ganged to provide adjustment for all three color channels
simultaneously.
Video Processor
The 9084 provides full video processing control (luma gain and lift, chroma
gain, and color phase) of the output video. The 9084 video processor also
provides white, black, and chroma clip control. Clipping can be applied with
either a hard or soft white clip and also a chroma saturation clip. Luma and
chroma gain controls can be ganged to provide adjustment for both gain
controls.
Frame Sync Function
This function provides for frame sync control using either one of two external
EXT REF IN (1,2) reference signals distributed with the card frame, or the input
video as a frame sync reference.
This function allows horizontal and/or vertical offset to be added between the
output video and the frame sync reference.
A Reset Framesync function resets the frame sync following any horizontal or
vertical offset changes, clearing any buffered video and re-establishing the
frame sync.
In the event of input video loss of signal, this function provides for disabling
the video, going to a desired color raster, or freezing to the last intact frame
(frame having valid SAV and EAV codes).
AFD Inserter
This function provides for assignment and insertion of AFD codes into the
SDI output video. Using this function, AFD codes in accordance with the
standard 4-bit AFD code designations can be applied to the output video.
This function checks for any existing AFD code within the received video
input. If a code is present, the code is displayed. When used in conjunction
with a separate downstream card capable of providing AFD-directed scaling,
the image can in turn be scaled in accordance with the AFD coding embedded
by this card.
The function also allows the selection/changing of the AFD code and
ancillary data line number for the outputted AFD code.