Glossary

Refresh Rate

The number of refresh operations per second The

 

light-emitting element of a display maintains the

 

same luminosity and color for an extremely short

 

time. For this reason, the image must be scanned

 

many times per second in order to refresh the light-

 

emitting element. The refresh rate is expressed in

 

hertz (Hz).

 

 

Resized display

This function is used to project computer images

 

that have a resolution more than or less than the

 

projector's panel resolution, so that they fill the

 

whole of the projection area.

 

 

SDTV

An abbreviation for Standard Definition Television. It

 

refers to standard television systems which do not

 

satisfy the conditions for High-Definition Television.

 

 

Security

A device consisting of a projector case with a hole in

lock

it that a commercially-available theft-prevention

 

cable can be passed through in order to secure the

 

device to a table or pillar. This projector is

 

compatible with the MicroSaverSecurity System

 

manufactured by Kensington.

 

 

Squeeze

The method of compressing 16:9 Widescreen

mode

images and recording them on video software as 4:3

 

images.

 

When projecting with Squeeze mode on, the images

 

will return to their original 16:9 format.

 

 

sRGB

An international standard for color intervals that was

 

formulated so that colors which are reproduced by

 

video equipment can be handled easily by computer

 

operating systems (OS) and the Internet.

 

 

SVGA

A type of video signal with a resolution of 800

 

(horizontal) 600 (vertical) dots which is used by

 

IBM PC/AT-compatible computers.

 

 

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S-Video

A type of video signal which has the video

 

brightness and color signal information separated, in

 

order to provide better image quality. It refers to

 

images which consist of two independent signals:

 

Y (luminance signal), and C (color signal).

 

 

Sync.

The process of matching the phases (the relative

(Synchronization)

position of crests and troughs) of computer and

 

projector signals. If signals are not synchronized,

 

problems such as flickering, blurriness and

 

horizontal interference can occur.

 

 

Tracking

The process of matching the computer and projector

 

frequencies (the number of crests in the signals). If

 

tracking is not carried out correctly, wide vertical

 

stripes will appear in the projected images.

 

 

VGA

A type of video signal with a resolution of 640

 

(horizontal) 480 (vertical) dots which is used by

 

IBM PC/AT-compatible computers.

 

 

XGA

A type of video signal with a resolution of 1,024

 

(horizontal) 768 (vertical) dots which is used by

 

IBM PC/AT-compatible computers.

 

 

YCbCr

The carrier signal contained in the color bar signal

 

used in modern (NTSC) TV transmissions. The

 

name comes from the Y (luminance) signal and the

 

CbCr (chroma [color]) signals.

 

 

YPbPr

The carrier signal contained in the color bar signal

 

used in high-definition TV (HDTV) transmissions.

 

The name comes from the Y (luminance) signal and

 

the PbPr (color difference) signals.