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Intel Corp., Sony Corp. and six other electronics companies finished developing technology to transmit high-definition video wirelessly between home devices.
The technology transfers high-definition video among televisions, DVD players, TV set-top boxes (1), camcorders and video-game consoles without wires. Devices that use the standard can be submitted for testing in June or July, and may be on sale in the second half or in early 2009, John Marshall, chairman of the WirelessHD, said in an interview.
The technology uses a virgin band of the radio spectrum, around 60 gigahertz. That lets it avoid interference from other wireless networking gear and allows for extremely high data transfer rates, according to John Marshall. Unlike other wireless TV solutions, WirelessHD won't need to compress the signal, which can result in a loss of quality.
To satisfy concerns by the Motion Picture Association of America, the organization of Hollywood studios, WirelessHD has intentionally limited the range of the technology.
"What Wireless HD has done is that we've made sure that the technology can cover a whole room _ even a large room, up to 10 meters (30 feet) _ but we've used techniques that make sure that it can't leak into the apartment next door. That also means the signal will not reach from the living room into other rooms in the same home, " Marshall said.
Jim Williams, chief technology officer of the MPAA, said in a statement that the group was "encouraged by Wireless HD's commitment to foster content protection in the wireless, digital age."
Of course, none of these technologies will let an HDTV go completely wireless: there is still the power cord. People are working on wireless power as well, but we'll have to wait much longer for that. ■AP/Bloomberg
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