Hdmi knowledge introduction, the meaning and interpretation

What does it mean hdmi

HDMI, English name is High Definition Multimedia Interf-ace, Chinese name is an abbreviation of high-definition multimedia interface. April 2002, Hitachi, Panasonic, Philips, Sony, Thomson, Toshiba and Silicon Image HDMI coalition of seven companies organization. HDMI can be high-quality transmission of uncompressed high-definition video and multi-channel audio data, the maximum data transfer speed of 5Gbps. At the same time without the signal before transmission / A or A / D conversion, we can guarantee the highest quality audio and video signal transmission.

HDMI not only meet the highest quality 1080P resolution, but also support DVD Audio as the most advanced digital audio formats, support for eight-channel 96kHz or stereo 192kHz digital audio transmission, and connect only one HDMI cable, eliminating the digital audio connection . Meanwhile HDMI standard has extra space can be used in future upgrades of audio and video formats. Sufficient to meet a 1080p video and an 8-channel audio signals. And because the audio signal needs a 1080p video and an 8-channel less than 4GB / s, so the HDMI there is a great margin. This allows it to use a cable are connected to a DVD player, receiver and PRR. Also HDMI supports EDID, DDC2B, so the HDMI device has with the "plug and play" feature, automatically "consultations" between the signal source and the display device to automatically select the most appropriate video / audio formats.

Volume compared to DVI HDMI interface is smaller and can transmit audio and video signals. DVI cable length should not exceed 8 meters, otherwise it will affect the picture quality, HDMI can transmit as far as 15 meters. Just one HDMI cable can replace up to 13 analog transmission line, a home entertainment system can effectively solve the messy tangle of wires behind the problem.

advantage:

HDMI interface specification can be in the form of digital transmission of uncompressed high-definition video and multi-channel audio data while maintaining a high quality case. Its superior performance beyond all previous products.

HDMI specification connectors use a single connection, replacing the complex cable behind the product.

Specifications Interface using HDMI cable no limit length. For example: DVI cable length should not exceed 8 meters, otherwise it will affect the picture quality, and compliance with the HDMI specifications is not the problem.

HDMI specification can be used with broadband digital content protection (HDCP), to prevent copyrighted audio and video content from unauthorized copying.

High Definition Multimedia Interface (English: High Definition Multimedia Interf-ace, HDMI) is a digital video / audio interface - technology is a special type of digital interfaces for video transmission, which can transmit audio and video signals, the maximum data transfer speed of 5Gbps. At the same time without the signal before transmission / A or A / D conversion. HDMI can be used with broadband digital content protection (HDCP), to prevent copyrighted audio and video content from unauthorized copying. HDMI possess additional space can be used in future upgrades of audio and video formats. And because a 1080p video and an 8-channel audio signal needs less than 4Gbps, HDMI and therefore there is a great margin. This allows it to use a cable are connected to a DVD player, receiver and PRR.