Matrox Corona Installation And Hardware Reference page 91

91
Color space
A color space is a way of representing and describing the
complete range of perceived colors. A number of color spaces
have been developed. Common color spaces are RGB and
HSL. Both describe the same range of perceivable colors.
Composite sync
A synchronization signal made up of two components: one
horizontal and one vertical.
Contiguous memory
A block of memory occupying a single, consecutive series of
locations.
DCF
Digitizer Configuration Format. A DCF defines the input
data format and among other things, how to accept or
generate video timing signals such as horizontal sync,
vertical sync, and pixel clock.
Display memory
See frame buffer.
Dual-ported memory
A type of display memory that can be accessed by two devices
simultaneously. This enables the display processor to provide
new data to the display memory while the screen is being
updated. WRAM is a type of dual-ported memory.
Dual-screen mode
A display configuration that uses two monitors; one to display
images from the Corona frame buffers, and another to display
the Host operating system's user interface.
See also multi-head mode and single-screen mode.
Exposure signal
The signal generated by one of the programmable timers of
the grab module. The exposure signal can be used to control
external hardware. For example, it can be fed to the camera
to control its exposure time or used to fire a strobe light.