Extron Electronics VN-QUANTUM User Guide - Manual (Page 75)

VN-QUANTUM User Guide Section 3: Functional Overview
I455GB issue 8 Page 75
Advanced Operating Principles
Source Scaling
VN-QUANTUM allows video, RGB and DVI sources to be scaled up or down in size by using the
scalers on the Input and Output Cards.
Down-scaling or ‘minification’ is performed by the Input Card and can be up to 16 times smaller
(both horizontally and/or vertically) than the original source.
Up-scaling or ‘magnification’ is performed by the Output Card and can be up to 16 times bigger
(both horizontally and/or vertically) than the original source.
For simplicity, the examples in the following diagrams assume that each screen in the target display
has the same resolution as the source:
NOTE: Sources emanating from the PCI bus (e.g. image files) are scaled (up or down) to the
appropriate size by the Output Card graphics processor (GPU).