News tagged with bandwidth
First hyperlens for sound waves created
Ultrasound and underwater sonar devices could "see" a big improvement thanks to development of the world's first acoustic hyperlens. Created by researchers with the U.S. Department of Energy's Lawrence Berkeley ...
Oct 25, 2009 |
4.6 / 5 (19) |
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Explained: The Shannon limit
It's the early 1980s, and you’re an equipment manufacturer for the fledgling personal-computer market. For years, modems that send data over the telephone lines have been stuck at a maximum rate of 9.6 kilobits ...
Technology / Computer Sciences
Jan 19, 2010 |
4.4 / 5 (19) |
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Physicists Detect Single-Electron Tunneling with Quantum Dots
(PhysOrg.com) -- Detecting the coherent motion of a single electron is a challenge, for the simple reason of scale: the timescale of the coherent motion of a single-electron wave function is in the picosecond ...
May 06, 2009 |
3.8 / 5 (18) |
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Nokia Siemens Networks achieves world record copper DSL speeds
Nokia Siemens Networks has successfully tested a technology that could drastically increase the data carrying capacity of standard copper wires. The company achieved data transmission speeds of 825 megabits per second (Mbps) ...
Oct 31, 2010 |
4.8 / 5 (11) |
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Fusion-io Deliveries The Worlds Fastest SSD
(Physorg.com) -- Fusion-io, a leader in high-performance I/O solutions, announced their new ioDrive Duo. The new ioDrive Duo is one of the fastest and most innovative server-based solid-state storage solutions. ...
Mar 12, 2009 |
4.2 / 5 (11) |
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Why Is My Internet Slow?
(PhysOrg.com) -- Most people don't understand how their broadband Internet connection works, they just know when it doesn't. When that happens, they do one of two things: consult the tech wizard in their house, or call their ...
Apr 12, 2010 |
3.3 / 5 (12) |
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New bandwidth management techniques boost operating efficiency in multi-core chips
Researchers from North Carolina State University have developed two new techniques to help maximize the performance of multi-core computer chips by allowing them to retrieve data more efficiently, which boosts chip performance ...
Technology / Computer Sciences
May 25, 2011 |
4.9 / 5 (8) |
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Fujitsu Announces World's First Operation of 100W-Class Amplifiers Employing Carbon Nanotubes
Fujitsu Laboratories today announced that, using carbon nanotubes as heat-dissipation material in amplifier transistors, Fujitsu has become the first to achieve the successful operation of high-frequency, ...
Dec 11, 2009 |
4.9 / 5 (7) |
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New nano color sorters from Molecular Foundry
Berkeley Lab researchers have engineered a new class of bowtie-shaped devices that capture, filter and steer light at the nanoscale. These "nano-colorsorter" devices act as antennae to focus and sort light ...
Nov 12, 2009 |
4.5 / 5 (6) |
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Research team 'virtualizes' supercomputer
A collaboration between researchers at Northwestern University, Sandia National Labs and the University of New Mexico has resulted in the largest-scale study ever done on what many consider an important part of the future ...
Technology / Computer Sciences
Jan 20, 2010 |
3.9 / 5 (7) |
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More chip cores can mean slower supercomputing, simulation shows
(PhysOrg.com) -- The worldwide attempt to increase the speed of supercomputers merely by increasing the number of processor cores on individual chips unexpectedly worsens performance for many complex applications, ...
Technology / Computer Sciences
Jan 14, 2009 |
4.3 / 5 (6) |
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Microsoft advocates new WiFi-NC to make use of white spaces in spectrum
(PhysOrg.com) -- Four years ago, the FCC began allowing limited use of the so-called white spaces in the electromagnetic spectrum that is shared by all wireless devices (in the United States). The white spaces ...
Jan 09, 2012 |
4.3 / 5 (6) |
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Metamaterials approach makes better satellite antennas
(PhysOrg.com) -- Cheaper, lighter and more energy-efficient broadband devices on communications satellites may be possible using metamaterials to modify horn antennas, according to engineers from Penn State ...
Jan 31, 2011 |
5 / 5 (5) |
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Mastering bandwidth: Researchers develop tunable, low-cost laser device
Transmitting information as pulses of light through fiber-optic cables is the fastest and highest-bandwidth communications technology that exists today. Yet even this technology is being pressed to carry ever-greater ...
Mar 04, 2011 |
4.6 / 5 (5) |
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First 'white space' devices about to debut
(PhysOrg.com) -- Google, and eight other already approved companies are likely to soon be joined by Microsoft as they all take a giant leap into the great "white space" unknown. Because bandwidth for computing devices has ...
May 25, 2011 |
3.8 / 5 (5) |
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