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Introduction, cont'd
Inverse 3:2 pulldown detection for NTSC video sources and 2:2 film detection for
Quad-standard decoding — The IN1508's video decoder provides accurate video
Picture controls — A wide variety of picture controls are available for fine picture
On-screen menus — The switcher puts its menu displays on the output video
Audio follow — When an input is selected on the front panel, the audio input
Operational flexibility — Operations such as input and scaling selection and
1-6
IN1508 Scaling Presentation Switcher • Introduction
PAL video sources — This advanced 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 IN1508's advanced film mode processing
recognizes signals that originated from film. The switcher 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.
A similar process is used for PAL film-source video.
decoding of composite video and S-video in the NTSC, PAL, SECAM, and
NTSC 4.43 standards. The advanced 3-line adaptive comb filter that decodes
composite video reduces cross-color interference and hanging dots while
maintaining maximum image bandwidth and detail.
adjustments:
•
Position
•
Size
•
Brightness and contrast
•
Color and tint
•
Sharpness
Once these adjustments are made, the settings are stored in non-volatile
memory and automatically recalled when the same input source is selected
again.
stream, for display by the output monitor or projector. The menu system
provides easy control of video adjustments. The on-screen menus also make
it easy to verify and adjust advanced settings such as output signal
resolution, refresh rate, sync format, and the reset to factory defaults
function.
follows its corresponding video input signal (audio follow). Under RS-232
control, the audio input can be switched to follow either the main window
selection or the PIP window selection.
picture controls can be performed on the front panel or over the RS-232 link.
The RS-232 links allow remote control via a PC or control system.
•
Front panel control — The switcher's front panel controller and on-
screen menus support individual input selection, resolution selection,
volume control, and complete configuration of the switcher.
•
Infrared remote control — The switcher includes an Infrared (IR) remote
control that duplicates all of the front panel functionality and some
RS-232 functionality.
•
Simple Instruction Set (SIS) commands — The remote control protocol
uses Extron's SIS commands for easy programming and operation.
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