Yamaha LPX-500 manual Glossary

Glossary

Following is an explanation of some of the terms used in this guide which may be unfamiliar or which were not explained in the manual itself. Further information can be obtained by referring to other commercially- available publications.

3-2 pull-down	This function directly converts image sources that have been recorded in the same 24-frame
detection-type IP	format used for movies into 60-frame progressive signals. This allows data such as DVD
conversion	software that has been recorded in 24-frame format to be played back on large screens with
	more natural and accurate reproduction, without any loss of image quality from the original
	movie.
Aspect ratio	The ratio between an image's length and its height. HDTV images have an aspect ratio of 16:9
	and appear elongated. The aspect ratio for standard images is 4:3.
Color	A type of video signal output by video equipment which actually consists of three separate
difference	signals: a red + luminance signal (R-Y), a luminance signal (Y) and a blue + luminance signal
signal	(B-Y). Each signal is transmitted along a separate cable. Color difference signals generally
(component)	result in a better image than composite signals (in which the red, green and blue signals and
	the luminance signal are all transmitted along a single cable).
Color	The temperature of an object which is emitting light. If the color temperature is high, the
temperature	colors tend to take on a bluish tinge. If the color temperature is lower, the colors tend to take
	on a reddish tinge.
Component video	Video signals which have the video brightness signals and color signals separated, in order to
	provide better image quality.
	In high-definition TV (HDTV), it refers to images which consist of three independent signals:
	Y (luminance signal), and PB and PR (color difference signals).
Composite video	Video signals which have the video brightness signals and color signals mixed together. The
	type of signals commonly used by household video equipment (NTSC format).
	The signals consist of the carrier signal Y (luminance signal) and the chroma (color) signal
	which are contained in the color signal.
Contrast	The relative brightness of the light and dark areas of an image can be increased or decreased
	in order to make text and graphics stand out more clearly, or to make them appear softer.
Cool-down	The cooling process for the projector lamp continues even after the [STANDBY/ON] button
	on either the remote control or the projector's control panel has been pressed to turn off the
	projector. All button operations for the emote control and the projector's control panel are
	disabled while the cooling fan is operating at this time. The length of time that this is
	happening is called the "cool-down period". The cool-down period lasts for about 5 minutes.
	The actual time will vary depending on the external air temperature.
DCDi function	An abbreviation for Directional Correlational Deinterlacing. Refers to a high-resolution
	image circuit function developed by Faroudja. It incorporates the latest in edge cutting
	technology to smooth the jaggedness from the edges of images that have been converted from
	interlaced to progressive video, in order to provide more natural images.
DVI	Abbreviation for Digital Visual Interface. Refers to a standard method for digital
	transmission of video signals.
	DVI is a standard that is also targeted towards digital household appliances other than
	computers.
Film judgment	This function determines whether or not the video source is a 24 Hz progressive film source.
function
Gain	The adjustment of minute changes in color that occur as result of factors such as differences
	in the equipment used to display images. It adjusts the coloration in brighter ranges separately
	for R, G and B components.
Gamma	The adjustment of minute changes in color that occur as result of factors such as differences
	in the equipment used to display images. It adjusts the coloration in intermediate ranges
	separately for R, G and B components.
HDTV	An abbreviation for High-Definition Television. It refers to high-definition systems which
	satisfy the following conditions.
	•	It may also include vertical resolutions of 720p or 1080i or above (p = progressive
		scanning; i = interlaced scanning) or 480p.
	•	Screen aspect ratio of 16:9
	•	Dolby Digital audio reception and playback (or output)

Appendices

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