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The Mobile High-definition Link (MHL) is a compact audio/video connector interface for transmitting uncompressed digital video and audio streams. It represents a digital alternative to consumer analog standards such as composite video and S-Video. MHL is compatible with DVI and HDMI, but uses many fewer pins and therefore can attach with smaller connectors and thinner cable. Smaller connectors are favored by makers of smaller and smaller portable devices.

MHL connects mobile digital audio/video sources such as cameras, portable media players, and camera phones to any HDMI device's input.

By transporting the digital content in digital form, the full impact of the picture (whether still images or video) can be seen on HDTVs.

The content stream is compliant to the HDMI specification, through the use of a bridge chip in a smart cable or docking station. The mobile device plugs into the bridge, where it can be recharged while playing content up to 720p or 1080i to the display device.

MHL was invented by Silicon Image, one of the founders of the HDMI standard. The MHL link has been optimized for low power operation of the mobile device, and includes provision for charging the mobile device through the MHL cable. The link also includes a USB connection, for transporting digital content between two MHL-equipped devices, in either direction.

References and notes

1. "Mobile High-Definition Link Technology Gives Consumers the Ability to Link Mobile Devices to HDTVs with Support for Audio and Video". Silicon Image. January 7, 2008. Retrieved 2009-01-15.

External links

• Silicon Image product overview

• Digital display connectors
• Television technology
• Film and video technology
• High-definition television