TechLogix Networx TL-2X1-HDVC VGA/HDMI Smart Switcher with Control is shown here, although this technology is incorporated in other models as well.
The switchers will scale VGA signals with resolutions between 800x600 through 1920x1200 to fit within a 1080p display without affecting the aspect ratio of the source content. As an example, if an 800x600 source, such as a document camera, were connected to the VGA input, the device would scale and convert the content to a digital 1080p output signal with black bars on the sides of the image (pillarboxed). If the source is 720p, such as mirrored content from a lower resolution laptop, the device will up-scale and convert the content to a digital 1080p output signal. If the source is 1080p, such as a PC connected directly to the VGA input, the unit will convert the content to a digital 1080p output signal.
This capability is found in the following models: