Learning about the HDMI (High-Definition Multimedia Interface)
ByThe HDMI cable is a connector for digital audio-video, born between 2002 and 2003. The technology of HDMI cable allows you to obtain an audio signal of type: LPCM, Dolby Digital, DTS, DVD-Audio, Super Audio CD, Dolby TrueHD, DTS-HD Master Audio, MPCM and a video signal: 480i, 480p, 576i, 576p, 720p, 1080i, 1080p, 1440p, 1600P, HDMI cable etc.Il has been implemented in electronic equipment of the leading manufacturers, such as: Toshiba Hitachi, Panasonic), Philips, Sony, etc. … The high-definition multimedia interface was later used in the movie business from the production of: Fox, Universal, Warner Bros. and Disney.
What is HDMI: High-Definition Multimedia Interface
The HDMI cable is similar to a scart socket as it is able to connect peripherals like audio / video using a single interface. From a technical viewpoint, an HDMI cable is backward-compatible electrically with the DVI digital interface that carries the video signal only. The HDMI cable is used in audio-video devices such as LCD, plasma, DVD players, camcorders, video projectors, and numerous other devices that provide high definition. The HDMI interface is continually evolving.
What formats are supported for HDMI?
HDMI is that it is compatible with almost all major video formats (PAL, NTSC and ATSC). Born in 2002, the HDMI cable and its technology has undergone continuous change. The latest developments are represented by HDMI version 1.3., Whose main features are:
* Data rate up 10.2 Gb / s.
* High-bandwidth 340 MHz.
* Max Resolution 2560×1440 progressive (1440p).
* Maximum depth of colors to 48 bits.
* Support (optional) output Dolby TrueHD and DTS-HD Master Audio stream (audio formats used with HD DVD and Blu-ray).
* Audio Sampling: 768 kHz (2 channel) and 192 kHz (from 3 to 8 channels)
* Support automatic audio syncing capability.
By the end of 2009 is expected to release the new version of HDMI cables that support the second-generation 3D technology.
HDMI connector and channels of data transfer
From a technical standpoint, the HDMI cable can be of three types: A, B and C. Each of them is used on various audio-video based on technical structures and sizes. Even for what concerns the transfer of data, the HDMI cable uses different channels. The main ones are: Channel TMDS, CEC Channel, Channel SCL, SDA Channel, Channel DDC.
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