文档介绍：hdmi(HDMI)
HDMI
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High definition multimedia interface (English: High Definition Multimedia Interface, HDMI) is a digital video / audio interface technology, is a special type of image transmission for digital interface, which can transmit audio and video signals at the same time, the maximum data transmission speed is 5Gbps. At the same time without the signal before transmission of digital / analog or analog / digital conversion. HDMI can be equipped with broadband digital content protection (HDCP) to prevent unauthorized copy of audio and video content. HDMI has the extra space can be used in audio and video formats in the days after the upgrade. And because a 1080p video and a 8 channel audio signal demand is less than 4Gbps, so HDMI still has a lot of margin. This allows it to be connected to the DVD player with a cable, and PRR receiver.
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Background
In April 2002, Hitachi, Matsushita, PHILPS, Silicon, Image, SONY, Thompson, Toshiba and other panies jointly set up a HDMI high definition multimedia interface interface HDMI Founders (HDMI Forum), began to develop a new digital era standard HD video / audio interface technology. After more than half a year of preparation work, HDMI founders officially released the HDMI 1 edition standard in December 9, 2002, marking the HDMI technology officially entered the historical stage.
The launch of HDMI technology is not the impulse behavior of these manufacturers. On the contrary, there are more deep reasons behind the introduction of HDMI technology.
In 1999 April, in order to meet the high quality image of the digital era, DDWG (Digital Display Working Group) digital display working group in the United States Silicon Image's patented technology as a blueprint, launched a project called DVI (Digital Visual Interfac