Texas Instruments DW30 Channel Number, Checkbox, Chrominance, Color Gamut, Color Shift, Decoder

Appendix A: Glossary

Channel Number	f A number that uniquely identifies a specific channel retained in projector memory.
	The projector can retain up to 50 channels.
Checkbox	f A menu item that indicates whether an option is currently in effect (checked) or not
	(unchecked).
Chrominance	f The signal representing the color information (hue and saturation) when the image is
	represented as separate chrominance and luminance. Same as “chroma”.
Color Gamut	f The range of colors allowed in a specific system, as defined within a triangular area
	located on the CIE color locus diagram whose corners are the three primaries defined
	in the system. Also known as color space.
Color Shift	f A change in the tint of a white field across an image.
Color Temperature	f The coloration (reddish, white, bluish, greenish, etc.) of white in an image, measured
	using the Kelvin (degrees K) temperature scale. Higher temperatures output more
	light.
Color Wheel	f An optical component, the color wheel is made up of red, green and blue and
	sometimes white segments. The light generated by the lamp is sequentially filtered by
	the color wheel (as it’s spinning) into R, G, B color primaries and passed to the DMD
	which then creates an image for each color.
Component Video	f See YCbCr or YPbPr.
Composite Video	f The output of video tape players and some computers, characterized by
	synchronization, luminance and color signals combined on one output cable.
Contrast (ratio)	f The degree of difference between the lightest and darkest areas of the image.
Convergence	f The alignment of the red, green, and blue elements of a projected image so that they
	appear as a single element.
Curved Screen	f A projection screen which is slightly concave for improved screen gain. Curved
	screens usually have screen gains, which are greater than 1 but viewing angles much
	less than 180°. Curved screens are not recommended for use with this projector.
DDC f The Display Data Channel VESA standard enables communication between PCs and
	monitors, and is based on E-EDID protocol.
DDI	f A “direct digital interface” signal can be supplied to the projector via an optional
	digital input module installed in INPUT 5. For example, you can input an SMPTE-
	259M signal using a Serial Digital Input Module or input an SMPTE-272M signal
	from a Digital HDTV Serial Input Module.
DMD™	f Digital Micromirror Devices™ used in this projector for processing red, green, and
	blue color data.
Decoder	f Located at INPUT 3 and INPUT 4, this device converts NTSC 3.58, NTSC 4.4, PAL,
	PAL-N, PAL-M, or SECAM to RGB video.
Detail	f The sharpness of a display from a video source.

A-2 Christie DS+60/DW30/Matrix 3000 User’s Manual 013-100149-02 Rev. 1 (01/07)