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the analysis of HDMI

  • Author:Esmart
  • Source:Esmart
  • Release on :2017-06-15

The full name of the HDMI interface is the High Definition Multimedia Interface, a fully digital interface for both the consumer electronics and PC applications. It can transmit uncompressed audio signals and video signals, because the audio and video signals using the same cable transmission, thus greatly simplifying the number of interface cables, has been popular in the home appliances and PC.

HDMI interface from the emergence of a number of versions have evolved from HDMI 1.1 to HDMI 1.4, although the appearance of the interface has not changed, but the function and bandwidth has been a qualitative improvement. The current mainstream hdmi to lightning cable interface version of HDMI 1.3 (a, b, c), but with the popularity of 3D video, HDMI 1.4 version of the device is also a large number of listed, as the focus of the promotion of various products. HDMI 1.4 brings several major innovative features, including HDMI Ethernet channel, audio return channel, HDMI 3D video playback and 4k × 2k ultra-high resolution support.

In the cable, lightning cable to hdmi before there is no version of the points, such as HDMI 1.1 and HDMI 1.3 version of the cable are the same, but in the HDMI 1.4 version, the cable there have been some changes. HDMI 1.4 version contains five types of cables, each with its different features and performance characteristics. HDMI 1.4 version is divided into standard HDMI cable, standard with Ethernet network function HDMI cable, car HDMI cable, high-speed HDMI cable, high-speed Ethernet network with HDMI cable five styles.

the analysis of HDMI

Standard HDMI cable is to support 1080p, high-speed HDMI support, including 4k × 2k, 3D video, Deep Color and other advanced display technology, this cable is actually the previous version of HDMI 1.3, their bandwidth requirements in the HDMI 1.3 version of the Within the bandwidth provided. And high-speed attached to the Ethernet function HDMI also has a dedicated data channel, which is to provide equipment between the network function of the lightning to hdmi adapter cable Ethernet channel, the cable structure has changed, this will be described later. In the HDMI standard, but also detailed provisions of the five types of cable certification label