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Understanding HDMI To DVI Cable
A Short Note Of HDMI To DVI Cable
If we look at the evolution of television screens we have gone from picture tubes to flat screen televisions to the latest HDTV displays. With each development the underlying technology has changed. The flat screen displays used DVI technology and HDTV use HDMI. Since we are at the cusp of these two technologies, we need the ability to interconnect the two and HDMI to DVI cable is ideal for that.
While it is useful to understand what the cable does, one cannot really appreciate its usability without understanding the two technologies. If we understand what DVI and HDMI technologies offer, we can better understand the importance of this cable.
DVI was a technology developed to send digital signals to the screen directly. With the VGA technology it was a combination of analog electric signals that displayed the picture. DVI let signals be sent as bits and screens with LCD to display the frames accordingly.
DVI though was designed to carry video signals only. There were some additional pins in the DVI connector but they were dedicated for secondary video streams. Audio channels had to be separate. So you would connect the DVI cable for video and a separate jack for the audio signals. Together the two would deliver a great viewing experience.
HDMI or High Definition Multimedia Interface was a big improvement over DVI. To start with it improved the quality of picture being displayed by increasing the pixel count per frame. This meant that you would get high definition picture on the screen.Secondly, it was no more a video interface but a multimedia interface. This meant that the signal was a composite audio video signal. This allowed a lot of flexibility in the kind of sources that could use this cable to transmit information.
With the multimedia support, HDMI lent itself well to HDTV receivers, DVDs playing HD pictures and even gaming consoles. Now when we look back that the HDTV to DVI cable you can easily see why a single cable is sufficient to transmit the video signals. The only point though is that with this cable you can one send video signals. As DVI does not support audio, one end of this cable cannot send or receive audio signals.
However, there is one inherent limitation that we need to honour in this setup. DVI signals cannot carry audio signal. This means that even if you use this HDMI to DVI cable you can only get eh video signal. You would need a separate connection for the audio. When you compare this limitation with incompatible screen and source interfaces you would have to agree that this is a great bargain.
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Review: The Playstation 3D Display Lets You Bring All Of Your Friends (crunchgear?)
Back at E3, the gaming world let out a collective groan when Sony announced
they were making a special 3D TV for the PS3. However, that groan swiftly
turned into a clamor of adoration once it was explained that the TV, in
addition to displaying 3D content, would also allow two players to play side
by side, seeing different displays through two pairs of 3D glasses. Called
SimulView, it was pretty darn cool. Fast forward to December and the 24-inch
TV has shipped and costs $499. The display has two HDMI ports and little else
- you plug in a PS3 and start playing games and Blu-Ray disks. Is this
PS3-branded widescreen 1080p monitor good? Definitely. But is it a necessary
accessory for gamers and non-gamers alike? That remains to be seen. Read on.
Arkview USB 2.0 to DVI/VGA/HDMI/AUDIO Adapter
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