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The Development of HDMI

Since the introduction of HDMI Cables in 2003 there have been several changes made. The development of various applications such as the DVD player etc. has forced these changes to come about. For example this development was the reason behind the first revision – HDMI 1.1 which added support for the DVD audio.

More recently the major revision has been the jump from HDMI 1.2 to 1.3. The new revision increased the bandwidth as well as support for 16 bit colour and support for the xvYCC colour standard. The HDMI 1.3 has also been developed in order to prevent that irritating lip-synchronisation issue- so no more having to sit through a film as the words move so much faster than the characters!

The development of HDMI 1.3 has caused a bit of a stir by people who have HDTV’s that are not HDMI 1.3 compatible. People fear that they will have to buy a new HDTV in order to get the full benefits of these new changes and also incorporate the latest DVD player for example. Fortunately a lack of 1.3 capability does not mean your HDTV is useless. HDMI 1.3 is backwards compatible with older versions and so you can still use it and get the benefits for the new cable. Needless to say this is really good and will save you a few pennies!

Another whole that people have tired to pick with the latest revision is the length of the cable. The standard length is a minimum of 32 feet (10 meters) however some people have reported that the cable is a lot shorter than this. The good news about this is that there are plenty of amplifiers and extenders that can decode, re-set and re-encode the signal.

If you are concerned about the limitations that HDMI cables may cause there is another solution called Display Port. Released in 2008 this is a new high-definition standard that covers connections inside devices such as laptops. However there are still advantages that HDMI hold in that they support xvYCC colour space and have electrical compatibility with DVI.

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5/21/2012 7:43:58 AM