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- Description of standard on file transmission and white board.
- Shared application submitted to ITU for approval as a part of the T.120 standard.
H.320
H.320 is the ITU standard for public circuit-switched networks.
- A comprehensive standard for audio and video. It can be shared between systems that sell ISDN.
- Including the H.261 Video Standard, G.711, G.722 and G.728 audio standards, and data for the T.120 standard.
Backwards Compatible
Backwards compatibility for previous computer models. The SVGA (800*600) projector provides backwards
compatibility for SVGA and VGA (640*480) computers.
Compression Mode
A mode that displays video in a zoomed out format.
Contrast Ratio
The ratio of the brightest and dimmest points on the screen.
Convergence
The alignment of the Red, Green and Blue video signals on the projected picture on the screen.
Display Size
The Display Size is determined by the diagonal length of the LCD panel.
Distribution Amplifier
A device that amplifies and transmits video signals over a long distance via coaxial cable.
EGA
Enhanced Graphics Array. EGA provides enhanced graphics quality in XT and AT IBM PC as a CGA card. (640x350
pixels for all modes)
Hz (kHz, MHz)
Hertz (Kilohertz, Megahertz). Frequency per second. (Kilo: 1,000, Mega: 1 million) Hz is used to represent the frequency
of electric signals.
NTSC
National Television Standards Committee. A TV and video signal transmission standard developed in North America in
1953. 525line / 60 Hz
PAL
Phase Alternate Line. A method to transmit and receive color line by line. PAL is widely used in Western European
countries. 625line / 50 Hz
SECAM
Sequential Couleur Avec Memorie. A TV standard developed in France. SECAM is mainly used in France and Eastern
European countries. 625 lines / 50 Hz
Super VGA (SVGA)
SVGA provides a graphics resolution of 800x600 pixels. This standard includes a vertical frequency version.
VGA
Video Graphics Array. Standard output interface for IBM PS/ 2. An analog graphics card developed by IBM that supports
720x400 pixels resolution in text mode and 640x480 pixels for graphics mode. (Other graphics cards process digital
data.)
Video
The picture projection capability of a PC with a VCR, Laser disk or CD-ROM drive.
XGA
Extended Graphics Adapter. A graphics standard developed by IBM. XGA includes VGA standard and provides
1024x768 pixels of resolution.
DVD
Digital media developed to provide the advantages of CD and LD. DVD provides high quality video and audio.
Satellite Broadcast
Satellite Broadcast transmits programs via satellite so that broadcasts are viable in all areas in a high visual and sound
quality.
External Input
External Input is provided to connect external video devices other than a TV tuner such as a VCR, camcorder, DVD
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