An Introduction To HDMI Cables
Founded by Silicon Image, Matsushita Electric Industrial (Panasonic / National / Quasar), Thomson (RCA), Hitachi, Philips, Sony and Toshiba, High Definition Multimedia Interface (or, as it is popularly known, HDMI) has managed to establish a standard video and audio connection, which makes it a must-have for high-definition home theater. HDMI is a digital connection, which has both the high-resolution audio and high definition video over a single cable port. In contrast to the analog versionwhere you find multiple jacks feeding into audio and video separately, HDMI can do the job with one USB plug, all while producing high quality sound and images. HDMI has the capacity to process 1080p resolution videos at 60 frames per second.
As the digital option for the older analog models (e.g., VGA, SCART, composite video, radio frequency coaxial cables, and S-Video), HDMI can support TV and PC video formats through a single cable and handle as much as 8 digital audio channels. It also has a Consumer Electronics Control (CEC) link that allows the user to control more than a couple of devices using a single remote control.
The advent of High Definition Television (HDTVs) has led to an increased demand for HDMI cables. As it is, each HDTV comes with 2 or more HDMI inputs, allowing a linkage with gadgets like game consoles, DVD players, Blu-ray players, DVRs.
Unlike the older cables, an HDMI cable has combined video and audio feeds into one cable.
There are four types of HDMI connectors. Type A and Type B falls under the HDMI 1.0, Type C falls under the HDMI 1.3, and Type D falls under the HDMI 1.4.
Type A comes with the kind of bandwidth that has the capacity to support digital television modes; namely, SDTV, HDTV and EDTV. It has 19 pins and a 13.9 mm × 4.45 mm male plug connector that attaches to the 14 mm × 4.55 mm female receptacle connector Electrically, Type A HDMI is can sync with a single-link DVI-D.
Type B has 29 pins and can support twice the video bandwidth that Type A can, and is best employed for viewing very high-resolution WQUXGA (3840×2400) images. Electrically, it can sync with dual-link DVI-D.
Type C, like Type A, has 19 pins, although it has a smaller plug. It is a mini connector meant for portable devices.
Type D is a micro connector with 19 pins similar to a micro-USB plug.
The fact is; HDMI cables are a vital piece of the puzzle when it comes to modern electronic equipment. You can't make the connection without them.
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