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Glossary
This section explains easily terms that are used with the projector and difficult terms that are not explained in the text of this guide. For details,
refer to other commercially available publications.
EMP Link21L A utility software program that allows the projector to be connected to a computer so that the computer can be used to control the
projector. For details on acquiring the software and for instructions on using the software and compatible projector models, go to http://
www.epson.com and select the support section of your local Epson Web site.
HDTV An abbreviation for High-Definition Television that refers to high-definition systems which satisfy the following conditions.
• Vertical resolution of 750p or 1125i or greater (p = progressive
g, i = interlaceg)
• Screen aspect ratio
g of 16:9
• Dolby Digital
g audio reception and playback (or output)
SDTV An abbreviation for Standard Definition Television that refers to standard television systems which do not satisfy the conditions for
HDTV
g High-Definition Television.
SNMP An abbreviation for Simple Network Management Protocol, which is the protocol for monitoring and controlling devices such as routers
and computers connected to a TCP/IP network.
S-video A video signal which has the luminance component and colour component separated to provide better image quality.
Refers to images that consist of two independent signals: Y (luminance signal) and C (colour signal).
sRGB An international standard for colour intervals that was formulated so that colours that are reproduced by video equipment can be handled
easily by computer operating systems (OS) and the Internet. If the connected source has an sRGB mode, set both the projector and the
connected signal source to sRGB.
SVGA A type of video signal with a resolution of 800 (horizontal) ^ 600 (vertical) dots that is used by IBM PC/AT-compatible computers.
SXGA A type of video signal with a resolution of 1280 (horizontal) ^ 1024 (vertical) dots that is used by IBM PC/AT-compatible computers.
VGA A type of video signal with a resolution of 640 (horizontal) ^ 480 (vertical) dots that is used by IBM PC/AT-compatible computers.
XGA A type of video signal with a resolution of 1024 (horizontal) ^ 768 (vertical) dots that is used by IBM PC/AT-compatible computers.
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.
Interlace A method of image scanning whereby the image data is divided into fine horizontal lines that are displayed in sequence starting from left
to right and then from top to bottom. The even-numbered lines and odd-numbered lines are displayed alternately.
Contrast The relative brightness of the light and dark areas of an image can be increased or decreased to make text and graphics stand out more
clearly, or to make them appear softer. Adjusting this particular property of an image is called "contrast adjustment".
Component video A video signal which has the luminance component and colour component separated to provide better image quality.
Refers to images that consist of three independent signals: Y (luminance signal), Pb and Pr (colour difference signals).
Composite video Video signals that have the video brightness signals and colour signals mixed together. The type of signals commonly used by household
video equipment (NTSC, NTSC4.43, PAL, M-PAL, N-PAL, PAL60, and SECAM formats).
Squeeze mode In this mode, wide-screen images in 16:9 mode are compressed in the horizontal direction so that they are stored on the recording
medium as 4:3 images.
When these images are played back by the projector in squeeze mode, they are restored to their original 16:9 format.