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Philips SWW1800
Now all we need is wireless power, and we're mobile!

At CES 2007 Philips introduced a device that can transfer an uncompressed HD signal over the air. Aside from being the first of its kind, Philips’ wireless HDMI “cable” is designed to replace conventional home theater wiring. Any home that currently uses an HDMI cable to transfer signals between their components and TV can use this unique device.

"HDMI is an established cornerstone for the HDTV industry, and Philips is extremely pleased to see such significant advancements for picture and sound quality,” said Glen McIlmail, CEO of Philips Accessories, North America. “Wireless HDMI presents an entire new category. For consumers who want the most advanced technology with the simplest connectivity, this is the only way to go.”

Wireless HDMI is an in-room solution that can transfer a 1080p signal without any signal loss. The signal is never compressed and retains all the attributes as if it were transmitted through a standard HDMI cable. By operating in the ultra wideband (UWB) range, the wireless cable experiences no interference from traditional devices (it functions free from obstruction of Wi-Fi, Bluetooth, cordless phones, microwaves and cell phones). Additionally, the wireless HDMI can be placed anywhere within a 25-foot range – in an entertainment center, in a closet, on the other side of the room. The cable also is compatible with HDCP.

The wireless HDMI device (SWW1800) will be available in May with a suggested retail price of $299.99.

Philips’ solution claims to be the first to offer an uncompressed, lossless signal, but it is not the first to move HDMI signals through the air. Last September, Tzero Technologies and Analog Devices announced their own wireless HDMI solution, which also makes use of UWB technology.

While Philips has not yet detailed exactly how its device operates, the Tzero and Analog HDMI Devices work by using a complex set of chips. On the transmit side, video data is compressed using Analog Devices’ ADV202 JPEG2000 video codec, combined with audio, then packetized and encrypted, and transmitted via the Tzero MAC and PHY chip. The RF chip transmits over the air to the receiver where the audio/video data with HDMI is decompressed and presented to the display device via the HDMI port.

The compression introduced by the Tzero and Analog Devices product is not a lossless one, and thus there is a drop in fidelity. Their design supports only up to 480 Mbps, though the bandwidth requirement for an uncompressed 1080i image is 2.2Gbps.



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RE: Wireless or wired? Which is better?
By surt on 1/9/2007 9:12:01 PM , Rating: 2
Packetizing + DePacketizing (and transmit and retransmit for air packets) = Latency (at least: and maybe also lossy). Wires are better for some things.


By bisoy on 1/10/2007 8:09:37 AM , Rating: 4
Also, if you're watching porn you may not be too comfortable if your kids taps into the signal.


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