HDMI (High-Definition Multimedia Interface) is a compact audio/video interface for transmitting uncompressed digital data. It is the latest alternative to the ones like (RF) coaxial cable, composite video, S-Video, SCART, component video, VGA cables. It can be used to connect digital audio/video sources such as set-top boxes, DVD players, HD DVD players, Blu-ray Disc players , gaming consoles like PlayStation 3, Xbox 360, and also PC, computer monitors and digital TVs.
History
Hitachi, Matsushita Electric Industrial (Panasonic/National/Quasar), Philips, Silicon Image, Sony, Thomson (RCA), and Toshiba are the combined founders of HDMI. Fox, Universal, Warner Bros., and Disney, studios provide support for the HDMI format. Many cable TV system operators also support HDMI. It was actually developed as a substitute AV connector that was backward-compatible with DVI.
Specifications
The protocols, signals, electrical interfaces, and mechanical requirements of the standard are specified by the HDMI specification. HDMI 1.0 required a pixel clock rate of 165 MHz, which was sufficient for supporting 1080p and WUXGA. For enabling higher resolution, HDMI 1.3 increased that to 340 MHz.
Applications
Blu-ray Disc/HD DVD players:
These formats provide new high-fidelity audio features and they require HDMI. Dolby Digital Plus, Dolby TrueHD, and DTS-HD Master Audio can be transmitted in compressed form
Personal computers
an HDMI-enabled monitor can recieve input from PCs that support DVI interface. HDMI interface is already included in some PCs and laptops. Intel's motherboard chipsets later than 945G have HDMI video output capability
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