NEWS: CE giants pitch yet another wireless HD standard

Jul 23, 2008 5 Replies
J

Just what the world needs: another consortium promoting a wireless technology for the transmission of HD content in the home.



The latest is the Wireless Home Digital Interface (WHDI), launched today by Sony, Samsung, Hitachi, Motorola and Sharp.



WHDI's technology comes from Israeli company Amimon. It uses the 5GHz band to transmit uncompressed 1080p video, audio and control signals around the home from multiple sources to multiple receivers. All this data is beamed at up to 3Gb/s.



Amimon claimed WHDI's range is 30.5m. It can go through walls and has a latency of less than a millisecond.



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D

Now where, oh where, do you suppose they came up with that wierd figure of "30.5 meters"?

You don't suppose they've converted from a nice round number in some other measuring system, doyathink?

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J

Standards are a good thing. Every company (and consortium) should have one.

They paced it off. 1 pace = 1 meter. When they ran a little short, they got out the tape measure, and added the extra 0.5 meter.

Nope. It's suppose to go through walls. They probably paced it off until they hit a wall, walked around to the other side, and continued pacing.

Another possibility is that they used one of those ultrasonic measuring tapes. They read off in tenths of a meter.

Yet another possibility is that they couldn't decide if they should round the 0.5 up or down.

Of course, the article didn't mention if it was actually usable at

30.5 meters, or whether the error rate was sufficient to irritate the avearge TV user. Most users can tolerate quite a bit of garbled audio (i.e. cell phones, VoIP), but even a few artifacts on the HDTV screen will produce an irate phone call to the cable or satellite providers outsourced support provider.
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L

While being bored on a pointless training course I also came across an article about "iMAT" which purports to give MIMO capability with a single antenna and has been tried in a WIMAX USB device.

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