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Glossary

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SECAM

An abbreviation for Sequential Couleur A Memoire, and a 
format for ground-based analogue colour television 
broadcasts. This format is used in France, Eastern Europe 
and the former Soviet Union, the Middle East and Africa.

Security lock

A device consisting of a protector case with a hole in 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 Microsaver 
Security System manufactured by Kensington.

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 image signal with a resolution of 800 
(horizontal) x 600 (vertical) dots which is used by IBM 
PC/ AT-compatible computers.

SXGA

A type of image signal with a resolution of 1280 
(horizontal) x 1024 (vertical) dots which is used by IBM 
PC/ AT-compatible computers.

Sync. (Synchronization)

The signals output from computers have a specific 
frequency. If the projector frequency does not match this 
frequency, the resulting images will not be of a good 
quality. The process of matching the phases of these 
signals (the relative position of the crests and troughs in the 
signal) is called "synchronization". If the signals are not 
synchronized, problems such as flickering, blurriness and 
horizontal interference can occur.

Tracking

The signals output from computers have a specific 
frequency. If the projector frequency does not match this 
frequency, the resulting images will not be of a good 
quality. The process of matching the frequency of these 
signals (the number of crests in the signal) is called 
"tracking". If tracking is not carried out correctly, wide 
vertical stripes will appear in the projected images.

VGA

A type of image signal with a resolution of 640 
(horizontal) x 480 (vertical) dots which is used by IBM 
PC/ AT-compatible computers.

XGA

A type of image signal with a resolution of 1,024 
(horizontal) x 768 (vertical) dots which is used by IBM 
PC/ AT-compatible computers.

YCbCr

The carrier signal which is contained in the color bar signal 
used in modern TV transmissions. The name comes from 
the Y (luminance) signal and the CbCr (chroma [color]) 
signals.

YPbPr

The carrier signal which is 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.