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Wireless HDMI promises around-the-house high-def viewing

by Bob Crabtree on 11 September 2006, 11:31

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Enjoy high-definition encrypted video and audio anywhere in the house, without the inconvenience and high cost of long cable-runs. That's the alluring promise held out by ultra-wideband wireless HDMI  circuitry that's been co-developed by Tzero Technologies and Analog Devices Inc (ADI) and looks set to be brought to market soon by Gefen.

The two developers claim to have created a wireless HDMI interface solution that meets the needs of the world’s top makers of consumer electronics kit for something that matches the quality and reliability of wired HDMI connections.

They say that full HDCP (High-bandwidth Digital Content Protection) compliance is supported, allowing protected content to be displayed on "authenticated" displays.

Also significant, they reckon that, unlike proprietary offerings, theirs is based on open standards guaranteed to co-exist with other WiMedia devices and be immune to interference from other wireless networks and household appliances.

And, according to Tzero's president and CEO, the new wireless solution will be a big money-saver. Using HDMI cables to create an around-the-house HD network is likely to be a messy business and one that costs a lot of money for the installation and for HDMI cables, which are still very expensive.

Gefen plans to base forthcoming consumer and specialist products on the Tzero/ADI design. Company president and CEO Hagai Gefen says that,

We have investigated dozens of alternative solutions over the past years, and finally have found one that meets our stringent requirements for wireless HD video distribution. We believe wireless HDMI will revolutionize the way people connect their high-definition displays, and are fully prepared to harness this technology to enable a reliable extension of high-definition video without cables.
 
The wireless transmitter and receiver use Tzero's TZ 7000 chipset and ADI’s JPEG2000 compression ICs. In the transmitter, video is compressed using ADI's ADV202 JPEG2000 video Codec, combined with audio, then packetized and encrypted and transmitted via the Tzero MAC and PHY chip.

This RF chip transmits over the air to the receiver where audio/video data is decompressed courtesy of ADI chippery and passed to the TV set though its HDMI port.

Check out Tzero's press release on page two of this article and comment in this thread in the HEXUS.lifestyle.news forum.

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External.links

Analog Devices Inc - home page
Tzero - home page
Gefen - home page
HDMI.org - home page