WHAT IS HDMI?

 

HDMI is becoming popular because a lot of advanced smartphones and tablets on the market. And many such products using HDMI features such as a tablet that provides an HDMI port so users can see the content, watch videos and play games on HDTV screens. However, many users do not know what it is HDMI.

HDMI or High Definition Multimedia Interface is the technology industry, and is the standard equipment connected HD or High Definition from TVHD such as LCD, LED TV or personal computer to the Camcorder, Camera, Game Console, Tablet, Blu-Ray player and Smartphones. There are also many other devices that can receive or send the HD signal.

More than 1,200 companies have licensed the HDMI specification and is a standard feature in many electronic products that are on the market. HDMI technology can provide crystal clear visual as for audio and video via a single cable. This technology can simplify function and help bring HD cable with high quality and can transmit all ATSC HDTV standards, supports 8 channels, 192 kHz, digital audio compression and all compression formats available.

In quality, HDMI is a digital interface that provides the best quality of the video because there is no lossy analog to digital conversions as are required for all analog connections. For the difference, can be seen in higher resolution such as 1080p digital video that will show images are much sharper, clearer and reduce excess light compared to analog systems. HDMI combines multichannel audio and video media into one single cable and eliminates the complexity of multiple cables as used A / V system.

HDMI supports two-way communication between the video source and the DTV enabling new functionality such as One Touch Play and automatic configuration. By using this technology, the device will automatically deliver the most effective formats like 480p vs 720p, 16:9 vs 4:3 and so on.

In addition, HDMI also supports HDCP which have access to HD content and HD Content Premium Ready. There are several versions of the HDMI to date.

HDMI v1.1

• Supports DVD Audio.

HDMI v1.2

• One Bit Audio format support such as Super Audio CD DSD (Direct Stream Digital).

 

HDMI v1.3

• Higher Speed. HDMI 1.3 increases bandwidth reaches 340 MHz single or 10.2 Gbps to support future HD devices such as a higher resolution, high frame rate and color depth.

•  Deep Color. HDMI 1.3 supports 10-bit color depth, 12-bit and 16-bit RGB / YCbCr.

•  New Mini Connector. HDMI 1.3 offers a new form of smaller  portable devices for cameras and HD camcorders still require seamless connectivity to HDTVs.

• New HD Lossless Audio format. HDMI 1.3 adds support for compressed digital audio formats DTS-HD Master Audio and Dolby TrueHD.

HDMI v1.4

HDMI 1.4. Increase the maximum resolution is 3840 x 2160P HD Quad at 24 Hz/30Hz or 4096 x 2160P at 24 Hz is used at a resolution of digital theater. An HDMI Ethernet Chanel or HEC can be used for connection to 100 Mbit / s between the two HDMI connected devices so they can share the connection.

• HDMI 1.4a. Adding 3D formats for broadcast content.

• HDMI 1.4b. Adds support for 1080p video at 120 Hz.

HDMI v2.0

HDMI 2.0 is expected to increase the TMDS maximum per channel of 3.4 Gbit / s to 6 Gbit / s which allows a maximum total TMDS throughput of 18Gbit / s. Supports 4K resolution @ 60fps, 3D @ 25fp, improving 3D capability, supporting more than 8 audio channels, supports HE-AAC, additional functions and audiop CEC standard DRA.