Ruckus patents technique for video over Wi-FiIDG News Service
2009.12.07 10:35 by Philip
Keywords: Wi-Fi, IPTV, patent, 802.11
Wi-Fi equipment vendor Ruckus Wireless has patented a technique that appears to be widely used to improve video on wireless LANs.
The company recently received patent protection in Europe after earlier having it patented in the U.S. Many other vendors seem to use a similar approach, according to industry analysts. But Ruckus said it isn't going on the warpath.
"We're not looking to go out and sue the industry," said Seamus Hennessy, Ruckus' chief financial officer.
"We want to use this to build a case and build a strong patent portfolio, so if we do need to go on the offensive, we can," Hennessy said.
The technique is a fundamental one involving a shift from one transmission protocol to another, and Ruckus said its patent is broad. In 2004, when it was trying to develop wireless LAN gear that could smoothly deliver high-definition TV, the Ruckus engineering team found a problem: Carriers used multicast to deliver IPTV (Internet Protocol TV), and multicast wasn't suited to 802.11 networks.