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Glossary
Refresh Rate The light-emitting element of a display maintains the same Tracking The signals output from computers have a specific frequency.
luminosity and color for an extremely short time.
If the projector frequency does not match this frequency, the
Because of this, the image must be scanned many times per resulting images are not of a good quality.
second to refresh the light-emitting element.
The process of matching the frequency of these signals (the
The number of refresh operations per second is called the number of crests in the signal) is called Tracking.
Refresh rate and is expressed in hertz (Hz).
If Tracking is not carried out correctly, wide vertical stripes
appear in the signal.
SDTV An abbreviation for Standard Definition Television that refers
to standard television systems which do not satisfy the
Trap IP Address This is the IP address for the destination computer used for
conditions for HDTV High-Definition Television.
error notification in SNMP.
SNMP An abbreviation for Simple Network Management Protocol,
VGA A screen size standard with a resolution of 640 (horizontal) ×
which is the protocol for monitoring and controlling devices
480 (vertical) dots.
such as routers and computers connected to a TCP/IP network.
XGA A screen size standard with a resolution of 1,024 (horizontal) ×
sRGB An international standard for color intervals that was
768 (vertical) dots.
formulated so that colors that are reproduced by video
WXGA A screen size standard with a resolution of 1,280 (horizontal) ×
equipment can be handled easily by computer operating
768 (vertical) dots.
systems (OS) and the Internet. If the connected source has an
sRGB mode, set both the projector and the connected signal
WUXGA A screen size standard with a resolution of 1,920 (horizontal) ×
source to sRGB.
1,200 (vertical) dots.
SSID SSID is identification data for connecting to another device on
a wireless LAN. Wireless communication is possible between
devices with the same SSID.
Subnet Mask This is a numerical value that defines the number of bits used
for the network address on a divided network (subnet) from the
IP address.
SVGA A screen size standard with a resolution of 800 (horizontal) ×
600 (vertical) dots.
SXGA A screen size standard with a resolution of 1,280 (horizontal) ×
1,024 (vertical) dots.
Sync. The signals output from computers have a specific frequency.
If the projector frequency does not match this frequency, the
resulting images are not of a good quality.
The process of matching the phases of these signals (the relative
position of the crests and the troughs in the signal) is called
Synchronization.
If the signals are not synchronized, flickering, blurriness, and
horizontal interference occur.
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