FOCUS Enhancements TView Quad Scan Manual - Manual (Page 23)

TView QuadScan User's Manual 0092-5000-200
23
3.12.2 Input Horizontal and Vertical Size (Range)
This control enables the user to control the size of the “Input Window” with respect to the input television source.
The Input Window is a smaller section of the television input that will be used as the scaling source. As the Input
Size is adjusted, the QuadScan will zoom the contents of the Input Window to the full screen size as defined by the
Output Display Configuration and Output Screen Aspect Ratio. The Input Horizontal and Vertical Position works
in conjunction with the Input Horizontal and Vertical Size. The default Input Size is with the Input Window
exactly aligned with the timing boundaries of active video as specified for NTSC and PAL
Input Horizontal and Vertical Size is indicated by IN HV SIZE on the QuadScan’s Front Panel Display.
3.13 Input Aspect Ratio Selection
3.13.1 Input Aspect Ratio Selection (Multiple)
This Control enables the QuadScan to adapt to different aspect ratios of popularly available video program material.
Recorded television material comes in 3 forms:
A) 4:3 full screen aspect ratio
B) 16:9 full screen aspect ratio (often called anamorphic)
C) letterbox format (16:9 aspect ratio strip with in a 4:3 aspect ratio screen)
The Input Aspect Ratio Selection operates in conjunction with the Output Display Device Configuration and Output
Screen Aspect Ratio to ensure that the QuadScan provides a picture of maximum area upon the output screen.
The Input Aspect Ratio Selection Options are
Input Source Front Panel Designation
4:3 Full Screen Input= 4:3
16:9 Full Screen (Anamorphic) Input=16:9
Letter box Input=4:3LB
The default is 4:3 Full Screen.