It is a digital data transmitter. The data transferred through this interface are uncompressed. For the analogy of consumers it represents as an alternative for digital transmitting. The digital devices for both audio as well as video can be connected through HDMI cables. Not only set top boxes it can also connect personal computers, blue ray discs, video games etc.



A single cable of HDMI supports all the video formats of personal computers and televisions. The video out will be high definitional with enhancements and standards for over than 7 audio cannels. It does not depend on the various standards of digital television for ex: DVD and ATSC. The streams of the videos of the digital televisions are compressed MPEG. These cables are also capable to output these video streams in uncompressed formats.

The signals of DVI (digital video interface) also pose the capacity to run compatible with these cables. In cases of usage of adapters there will be no low quality video outputs. Because these cable poses special features to resist the conversion of signals on usage of adapters.

History of HDMI cables:

The HDMI cables were first designed in the month of December of the year 2002. Many outstanding companies in electronic field such as Hitachi, Philips, Sony, Panasonic etc are involved in the production of these cables .However the products involving these cables were out in autumn season of the year 2003. More than 800 companies of electronic consumers went with this option. The HDTV and TV sets in Europe were labelled in the inclusion of these cables. These cables obtained their formulae in the year 2005 by SES Astra and EICTA.

It was in the year 2006 these cables were used in the digital still cameras and also hi tech camcorders. The Shipments of these cables are ready to break the record set by DVI interfaces.

Functions of HDMI cables:

The single of HDMI all types PC and PC video formats. This also includes videos which are highly defined. They are specially manufactured to take part in the process of adhering of different specified versions. Every versions adhered by these cables will be given with a unique number. Though they are involved in a single cable but their bandwidth varies. This is because the bandwidth increases with the increase in signals.

The resolution of the pixels will also increase with the increase in MHz. The connection of these cables can also be dual as per the macro hertz. The definitions of requirements for the timings of the video are also one of their main advantages.

Some of the specified basic features are:

Connectors: The connectors are subdivided into three parts Type A, Type B and Type C. It depends on the pin numbers as well as band widths.

Cable lengths: These cables are irrespective of their lengths. Cable of any length will result in standard, high defined video outputs.

DDC and TMD: The support of these devices is specially required for HDMI cables.

DVI compatibility: The signals of the DVI outputs are easy compatible with these cables.