FOCUS Enhancements TView Quad Scan Manual - Manual (Page 17)

TView QuadScan User's Manual 0092-5000-200
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3.2 Output Screen Aspect Ratio
3.2.1 Output Screen Aspect Ratio (Multiple) (Not Available from IR remote mouse)
The Output Screen Aspect Ratio control interacts with the Output Display Device Configuration and Input Aspect
Ratio Selection to position the scaled and process image in the best screen position for a given combination. It is
important to remember that the Screen aspect ratio is different from the Display Device aspect ratio. (for example,
using a D-ILA projection system with a display device resolution of 1365 x 1024, aspect ratio of 4:3, a user may
optimize his projection room for 16:9 viewing by focusing the projector on a 16:9 screen. This will effectively
reduce the resolution of the projection system to 1365 x 768. The pixels outside the 1365 x 768 viewing area are
still active (although black) and may be focussed into the floor or the ceiling to achieve the desired maximum
viewing area at 16:9. Since the exact position of the 1365 x 768 “active video” window within the 1365 x 1024
raster of the D-ILA is not known, 3 position settings are provided:
A) positions the 1365 x 768 active video strip at the top of the 1365 x 1024 raster.
B) positions the 1365 x 768 active video strip in the middle of the 1365 x 1024 raster.
C) positions the 1365 x 768 active video strip at the bottom of the 1365 x 1024 raster.
When 16:9 Output Aspect Ratio is selected, the QuadScan will determine the best presentation of the image upon a
16:9 screen based also on the Display Device Resolution and the Input Aspect Ratio selected. Similar action will
be performed for 4:3 aspect ratio screens if 4:3 Output Aspect Ratio is chosen. The choices of Output Screen Size
are:
Output Aspect Ratio Front Panel Designation
16:9 Top 16:9A
16:9 Middle 16:9B
16:9 Bottom 16:9C
4:3 Top 4:3A
4:3 Middle 4:3B
4:3 Bottom 4:3C
The Output Aspect Ratio Control default is 4:3B. The Output Aspect Ratio Control is restricted to 4:3B for all
input modes of 800 x 600 and less.
3.3 Reset and Control Functions
3.3.1 IR ON/OFF (Toggle) (Not available from IR remote mouse)
This control enables/disables IR Remote Control.
3.3.2 Mode Reset
This control resets the current mode to its factory default. Each “mode” is defined as being a Input Source-Output
Resolution combination. (For example, PAL composite input on Channel B scaled to XGA output is one mode).
The Mode Reset control affects only the current mode, all others will remain as previously configured by the user.
3.3.3 Full Reset (Not available from IR remote mouse)
This control resets all of the modes of the QuadScan to their factory default values.