Cobalt Networks 9084 manual Color Corrector, Video Processor, Frame Sync Function, AFD Inserter

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.

9084-OM (V4.0) 9084 PRODUCT MANUAL 1-7