Wireless
hideWireless communication is the transfer of information over a distance without the use of electrical conductors or "wires". The distances involved may be short (a few meters as in television remote control) or long (thousands or millions of kilometers for radio communications). When the context is clear, the term is often shortened to "wireless". Wireless communication is generally considered to be a branch of telecommunications.
It encompasses various types of fixed, mobile, and portable two way radios, cellular telephones, personal digital assistants (PDAs), and wireless networking. Other examples of wireless technology include GPS units, garage door openers and or garage doors, wireless computer mice, keyboards and headsets, satellite television and cordless telephones.
For more information about Wireless, read the full article at
Wikipedia.
This text uses material from Wikipedia and is available under the GNU Free Documentation License.
News tagged with wireless
New radio chip mimics human ear, could enable universal radio (w/Video)
Jun 03, 2009 |
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(PhysOrg.com) -- MIT engineers have built a fast, ultra-broadband, low-power radio chip, modeled on the human inner ear, that could enable wireless devices capable of receiving cell phone, Internet, radio ...
Networks of the Future: Extending Our Senses into the Physical World
Technology / Computer Sciences
Aug 13, 2008 |
4.5 / 5 (19) |
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(PhysOrg.com) -- The picture of a future with wireless sensor networks-webs of sensory devices that function without a central infrastructure--is quickly coming into sharper focus through the work of Los Alamos National Laboratory ...
Salt and Paper Battery May One Day Replace Lithium Batteries
Sep 15, 2009 |
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(PhysOrg.com) -- Salt and paper battery can be used in many low-power devices, such as medical implants, RFID tags, wireless sensors and smart cards. This battery uses a thin-film which makes it an attractive ...
Network turns soldiers' helmets into sniper location system
Mar 24, 2009 |
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(PhysOrg.com) -- Imagine a platoon of soldiers fighting in a hazardous urban environment who carry personal digital assistants that can display the location of enemy shooters in three dimensions and accurately ...
Courier: Microsoft's New 'Booklet' (w/ Video)
Electronics / Consumer & Gadgets
Sep 24, 2009 |
4.8 / 5 (12) |
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(PhysOrg.com) -- Microsoft has been secretly developing a prototype booklet-shaped tablet PC called the Courier, according to an exclusive report in the gadget blog "Gizmodo".
Sony develops highly efficient wireless power transfer system based on magnetic resonance
Oct 02, 2009 |
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Sony Corp. today announced the development of a highly efficient wireless power transfer system that eliminates the use of power cables from electronic products such as television sets. Using this system, ...
Micromachined piezoelectric harvester drives fully autonomous wireless sensor
Dec 15, 2009 |
5 / 5 (11) |
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For the first time, a piezoelectric harvesting device fabricated by MEMS technology generates a record of 85μW electrical power from vibrations. A wafer level packaging method was developed for robustness. ...
New High Frequency Amplifier Harnesses Millimeter Waves in Silicon for Fast Wireless
Feb 11, 2009 |
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(PhysOrg.com) -- New imaging and high capacity wireless communications systems are one step closer to reality, thanks to a millimeter wave amplifier invented at the University of California, San Diego and ...
Zeroing in on Wi-Fi 'dead zones'
Sep 25, 2008 |
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Rooting out Wi-Fi "dead zones" in large wireless networks that cover whole neighborhoods or cities is an expensive proposition. Pre-deployment testing is so costly that most WiFi providers simply build their networks first ...
New Wireless 60 GHz Standard Promises Ultra-Fast Applications
Jan 15, 2009 |
4.4 / 5 (10) |
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(PhysOrg.com) -- Ultra-high-speed wireless connectivity - capable of transferring 15 gigabits of data per second over short distances - has taken a significant step toward reality. A recent decision by an ...
WPA Wi-Fi Encryption Cracked In Sixty Seconds
Aug 28, 2009 |
4.3 / 5 (9) |
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(PhysOrg.com) -- Two Japanese computer scientists have developed a way to crack the WPA encryption between wireless routes and devices in 60 seconds.
Students create portable device to detect suicide bombers (w/ Video)
Jun 24, 2009 |
4.2 / 5 (9) |
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(PhysOrg.com) -- Improvised explosive devices (IEDs), the weapons of suicide bombers, are a major cause of soldier casualties in Iraq and Afghanistan. A group of University of Michigan engineering undergraduate students have ...
Bridging the gap in nanoantennas
Apr 20, 2009 |
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In a recent publication in Nature Photonics, a joint team of researchers at CIC nanoGUNE, Donostia International Physics Center DIPC, Centro de Física de Materiales of CSIC/UPV-EHU in San Sebastian (Spain ...
LED lights build communication network
Aug 04, 2009 |
4.4 / 5 (8) |
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(PhysOrg.com) -- Imagine a world where bright, energy-sipping, cheap, durable LEDs light the world. A world where if you have enough light to see, you are connected. The University of California, Riverside ...
Novatel Debuts Their Wireless MiFi Hotspot
Electronics / Consumer & Gadgets
Dec 09, 2008 |
4.7 / 5 (7) |
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(PhysOrg.com) -- The Novatel MiFi portable broadband hotspot card does the job of a 3G modem and wireless router combined. The MiFi can connect to either an EVDO Rev. A or HSPA signal. The connection is then ...
