Updated: 5/16/2006; 10:28:48 AM.

Ken Novak's Weblog
Purpose of this blog: to retain annotated bookmarks for my future reference, and to offer others my filter technology and other news. Note that this blog is categorized. Use the category links to find items that match your interests.
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daily link  Saturday, October 26, 2002


Inverter Market Growing: "The increasing need for reliable, high-quality power has spurred a greater demand for direct current/alternate current (DC/AC) power inverters in North America, according to a company in the business. New analysis from Frost & Sullivan North American DC/AC Power Inverter Market, reveals that revenues in this market totaled US$469.3 million in 2001 and are projected to reach US$1.3 billion by 2008, according to the company. "  11:13:08 PM  permalink  

'Next-Generation' WiFi: Quick review of “DriveBy Infofueling”, mesh networking and Location-Enabled Networking applications of 802.11.  10:39:27 PM  permalink  

NYT: Thinking of Radio as Smart Enough to Live Without Rules:  "Radio waves are like light waves - and light doesn't mess up other light,'' said David P. Reed, an independent consultant in wireless networking, former vice president of the Lotus Development Corporation and an early designer of Internet protocols.  With cognitive radio (the term was coined by Joseph Mitola III, a consulting scientist at the Mitre Corporation, to refer to the radio's ability to be "aware" of the conditions in which it sends and receives signals), interference would no longer be a problem. Capacity would actually increase as the number of radios in a given area increased.

Assuming the current trajectory of development continues, cognitive radios, using the global positioning system to pinpoint location and embedded microprocessors, would be able to accomplish complex tasks that regular radios cannot, Dr. Reed said.  .. Every wireless device, including cellphones, hand-helds and car radios, would send and receive signals and could pass along traffic for everyone else. .. These radios would encode their signals and broadcast them across a wide set of frequencies rather than just one specific frequency, enabling them to broadcast without interfering with others nearby. When receiving, the radios would use their processors to sort out the encoded signals."  They could even used lisenced spectrum when it wasn't already in use, and back off when it was needed by the lisencee.

  10:31:47 PM  permalink  

 

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Last update: 5/16/2006; 10:28:48 AM.