Extron electronic DDS 402 manual Introduction, cont’d

Introduction, cont’d

Operational flexibility — Operations such as input and scaling selection, picture controls, and saving and recalling of presets can be performed on the front panel or over the RS-232 link. The RS-232 link allows remote control via a PC or control system. Input selection is also available under contact closure control.

•Front panel control — The scaler front panel controller supports individual input selection. The front panel features large, positive touch, illuminated buttons that can be labeled with text or graphics, two rotary knobs for making adjustments or selecting menu options, and an LCD.

•Windows-based control program — Extron’s Windows-based control program provides a versatile range of operational options with its graphical interface and drag-and-drop/point-and-click operation.

•Simple Instruction Set (SIS™) control — The remote control protocol uses Extron’s SIS for easy programming and operation.

•Contact closure control — The operator can select either input via contact closure through the Remote port.

Accu-RATE Frame Lock™ (AFL™) — A technology exclusive to Extron that solves frame rate conversion issues experienced by video scalers. When video input and output refresh rates differ, occasionally the two rates cross over each other. The result is a glitch or image freeze on the display. AFL solves this problem by locking the output frame rate to the input frame rate.

3:2 pulldown detection for NTSC video sources — This advanced, patent pending, film mode processing feature helps maximize image detail and sharpness for video sources that originated from film. When film is converted to NTSC video, the film frame rate has to be matched to the video frame rate in a process called 3:2 pulldown. Jaggies and other image artifacts can result if conventional deinterlacing techniques are used on film-source video. The DDS 402’s advanced film mode processing recognizes signals that originated from film. The DDS 402 then applies video processing algorithms that optimize the conversion of video that was made with the 3:2 pulldown process. This results in richly detailed images with sharply defined lines.

Test patterns — The switcher features built-in test patterns to aid in monitor or projector set-up and evaluation.

Blue mode — The switcher can be set to output the blue video signal only, to help installers calibrate the monitor or projector.

Triple-Action Switching™ (RGB delay) — RGB delay blanks the screen when the scaler switches between inputs. The new sync signals precede the RGB signals, so that a noise-filled scramble is not shown during the transition. The time delay between the RGB and sync signals is user adjustable up to five seconds on the front panel and under RS-232 control.

Horizontal and vertical detail — The DDS 402 offers four levels of horizontal detail and eight levels of vertical detail. Horizontal and vertical detail minimize the loss of picture fidelity.

Picture controls — Horizontal and vertical centering, horizontal and vertical sizing, brightness, contrast, zoom, and detail controls are available for fine picture adjustments.

Top and bottom line blanking — Extron’s exclusive variable horizontal blanking feature allows the operator to add black lines at the top and bottom edges of the image to mask the top and bottom each image.

1-4 Digital Display Scaler • Introduction