Able to provide up to three HD streams from 10 meters away using UltraWideBand
Chip manufacturers TZero Technologies and Analog Devices have joined forces to create a wireless HDMI standard. Alleging that prior implementations of wireless HDMI haven't been up to acceptable levels, TZero has built their current prototype on the standards set forth by Panasonic, Philips, Samsung, Sharp and Sony in July 2003.
TZero manufactures chips for ultrawideband technology, the backbone transmission system that is forecasted to act as a wireless replacement for USB. The wireless HDMI system claims speeds of 500MBits/second and resistance to common sources of interference such as microwave ovens and cordless telephones. In addition, the standard is calling for a high level of reliability with "less than one in one hundred million" packets having an error or being lost.
"It needs to be good under all conditions," said Dan Karr, VP of TZero's marketing division. "Wi-Fi serves this market very well, but in a video environment you can see that would be very problematic."
While TZero is providing their TZ7000 chipset, Analog Devices is providing their JPEG2000 codec. Based on the popular JPEG image compression, JPEG2000 is able to operate in both lossy and lossless mode - only the latter will be used to avoid introducing undesirable artifacts into video. Encryption will also be used to secure the transmissions, but specifications on the algorithm have not been made available. The hardware will be fully HDCP compliant, so all existing HDMI devices should function without error.
In addition to the simple point-to-point "cable replacement" usage, TZero also hopes to create a "distribution model" for high-definition content, where a single transmitter can drive up to three individual receivers, each receiving a different content stream.
The current device, a large "black box" design, has a few stages of revamping ahead of it before it is ready for release, but TZero hopes to be able to reduce the receiver to the size where it can be integrated into televisions, projectors, or even portable media devices. A showing is expected at the Consumer Electronics Show of a top-tier HDTV with an embedded TZero receiver. Pricing has not been announced, but TZero claims it will be "comparable to other wireless technologies."
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