Sunday, July 11, 2010

The World Of HDMI

HDMI TO HDMI 6 foot cable
HDMI TO HDMI 6 foot cable
By Corie Miritiska

The founders of High-Definition Multimedia Interface (HDMI) are Hitachi, Philips, Sony, Silicon Image, RCA, Toshiba and Matsushita Electric Industrial who started the development of HDMI in 2002.

The intention was to develop an AV connector which would be compatible with DVI. They needed to improve on this as the CEA-891-B video standard was in use for HD Televisions at the time. The goal was a smaller connector, which would advance audio and also the consumer electronics control functions, with the use of one remote control.

The HDMI interface, mainly for video/audio, sends out digital data uncompressed. As analog standards were being used for Radio Frequency, Coaxial Cable, VGA, Composite Video and S-Video the Electronics companies were looking for an alternative to analog, and they found it in HDMI, which is digital.

Monitors and Televisions, which were analog at that time, if made to the digital format and specifications, could be successfully interfaced by HDMI, connecting the digital audio and video to many other digital devices.

These audio and digital devices that can be connected to digital TVs and monitors are part of the home theater range such as Video Game Consoles like the XBox 360 and the Playstation 3, AVCHD Camcorders, DVD players, set top boxes and AV receivers.

A Personal Computer or Television in any format supports HDMI with the use of one cable. With the advantage of the 8 digital audio channel reception, a user, with one remote control, can operate all of these devices: Stereo Amplifier, Television, Personal Computer, DVD player, Video Machine, Playstations and Cameras. All can be programmed into one remote control as the format DVI is compatible with HDMI. When a DVI/HDMI adapter is being used this does not affect the quality of the video or audio.

HDMI is an uncompressed connection, so it does not rely on the digital television standards being used by each device. These are DVG and ATSC which are derivatives of MPEG compressed video streams. HDMI decodes these compressed streams and outputs them as uncompressed video streams.

In 2003 HDMI products started arriving on the market, and since then PC companies and more than 850 Consumer Electronics companies are using the HDMI specification. In Europe labels specify whether Televisions are HD ready.

HDMI's consumer product figures as estimated by LLC who license the specifications for HDMI, announced after receiving a 2008 report from In-Stat who estimated sales of nearly 400 million for HDMI devices in 2009, that all digital Televisions manufactured, would have at least one HDMI input by the end of 2009.

HDMI has won a few awards, one being the Technical Excellence Award, given by PC Magazine. This was for the category of Home Theater in 2008.

Another award was given to the CEC part of HDMI specification by PC Magazine in 2008. In the Home Theater Category CEC received the award for an innovation that has changed the world. They were awarded the Technical Excellence Award.

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