Digital Visual Interface (DVI)
(pronounced as separate letters) (1) Short for Digital Visual Interface, a digital interface standard created by the Digital Display Working Group (DDWG) to convert analog signals into digital signals to accommodate both analog and digital monitors. Data is transmitted using the transition minimized differential signaling (TMDS) protocol, providing a digital signal from the PC’s graphics subsystem to the display. The standard specifies a single plug and connector that encompass both the new digital and legacy VGA interfaces, as well as a digital-only plug connector. DVI handles bandwidths in excess of 160 MHz and thus supports UXGA and HDTV with a single set of links. Higher resolutionscan be supported with a dual set of links.
(2) Short for Digital Video Interactive, a now-defunct technology developed by General Electric that enables a computer to store and display moving video images like those on television. The most difficult aspect of displaying TV-like images on a computer is overcoming the fact that each frame requires an immense amount of storage. A single frame can require up to 2MB (megabytes) of storage. Televisions display 30 frames per second, which can quickly exhaust a computer’s mass storage resources. It is also difficult to transfer so much data to a display screenat a rate of 30 frames per second.
DVI overcomes these problems by using specialized processors to compress and decompress the data. DVI is a hardware -only codec (compression/decompression) technology. A competing hardware codec, which has become much more popular, is MPEG. Intel has developed a software version of the DVI algorithms, which it markets under the name Indeo.
(3) Short for Device Independent, a file format used by the TeXtypography system.
Read Also:
- DVI-I
Short for DVI (Digital Visual Interface) Integrated, DVI-I is the connection, or interface used between monitors and computers or home theater systems. DVI-I is used to interface with an LCD or CRT monitor display for digital video output. DVI-I supports both digital and analog. However, it will not use both at the same time. DVI-I […]
- DVI to VGA adapter
A DVI to VGA adapter is used to connect a VGA/SVGA monitor to a DVI-I connection. These adapters are commonly used by those with an older video cards and a newer LCD display.
- DVMRP
Short for Distance Vector Multicast Routing Protocol, an interior gateway protocol based on RIP that supports connectionless multicast data transmission to a group of hosts over a network. DVMRP tunnels multicast transmission within unicast packets that are reassembled into multicast data when they arrive at their destination.
- DV converter
In video editing, a DV (digital video) converter is a software utility that enables you to convert DV (Digital Video) to other formats including MP3, WAV, WMA, AVI, WMV, DivX, Xvid. Alternatively, you can also convert the alternative formats to DV.
- DWDM
Short for Dense Wavelength Division Multiplexing, an optical technology used to increase bandwidth over existing fiber optic backbones. DWDM works by combining and transmitting multiple signals simultaneously at different wavelengths on the same fiber. In effect, one fiber is transformed into multiple virtual fibers. So, if you were to multiplex eight OC-48 signals into one […]