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Mobile HD video connectivity spec updated to MHL 3.0

updated 07:57 pm EDT, Tue August 20, 2013

Preliminary specification completed, final version due this fall

MHL, LLC today announced the advancement of the MHL 3.0 specification to address the latest consumer requirements for connecting a mobile device to displays, marking major advancements in the areas of audio and video transmission over an MHL link. With double the bandwidth compared to the previous specification, MHL 3.0 delivers 4K (Ultra HD) resolution and a wider color gamut to create a better visual experience. By using a bi-directional channel that's significantly faster than MHL 2, the new specification enables concurrent 4K video and high-speed peripheral support of mass storage and input devices such as a touch screen, keyboard and mouse.

The MHL Consortium is comprised of Nokia Corporation, Samsung Electronics, Silicon Image Inc., Sony Corporation, and Toshiba Corporation. The MHL specification is an HD video and digital audio interface for connecting mobile phones and portable devices to HDTVs and other home entertainment products. It utilizes established connectors such as Mini-USB and HDMI, features a single cable with a 5-pin interface, supports 1080p HD video and digital audio and simultaneously provides power to the mobile device.

The MHL 3.0 specification capabilities include 4K (Ultra HD) support of 4K formats up to 2160p30, simultaneous high-speed data channels, Improved Remote Control Protocol (RCP) with support for peripherals, power charging up to 10W, HDCP 2.2 content protection, enhanced 7.1 surround sound with Dolby TrueHD and DTS-HD, and support for simultaneous multiple displays.

The full MHL 3.0 specification will be available for members to download in early September 2013. Additional news is expected from the company before the end of the year "to provide more information on how MHL is expanding" into additional connectivity beyond mobile devices.




by MacNN Staff

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