Monday, May 21, 2007

Death of the cell phone charger

 
(Business 2.0 Magazine) -- How much money could you make from a technology that replaces electrical wires? A startup called Powercast, along with the more than 100 companies that have inked agreements with it, is about to start finding out. Powercast and its first major partner, electronics giant Philips, are set to launch their first device powered by electricity broadcast through the air.
 
Picture your cell phone charging up the second you sit down at your desk, and you start to get a sense of the opportunity. How big can it get? "The sky's the limit," says John Shearer, Powercast's founder and CEO. He estimates shipping "many millions of units" by the end of 2008.
 
For years, electricity experts said this kind of thing couldn't be done. "If you had asked me seven months ago if this was possible, I would have said, 'Are you dreaming? Have you been smoking something?'" says Govi Rao, vice president and general manager of solid-state lighting at Philips (Charts). "But to see it work is just amazing. It could revolutionize what we know about power."
 
World's 11 coolest products
 
So impressed was Rao after witnessing Powercast's demo last summer that he walked away jotting down a list of the industries to which the technology could immediately be applied: lighting, peripherals, all kinds of handheld electronics. Philips partnered with Powercast last July, and their first joint product, a wirelessly powered LED light stick, will hit the market this year. Computer peripherals, such as a wireless keyboard and mouse, will follow in 2008.
 
Broadcasting power through the air isn't a new idea. Researchers have experimented with capturing the radiation in radio frequency at high power but had difficulty capturing it at consumer-friendly low power. "You'd have energy bouncing off the walls and arriving in a wide range of voltages," says Zoya Popovic, an electrical engineering professor at the University of Colorado who works on wireless electricity projects for the U.S. military.
 
That's where Shearer came in. A former physicist based in Pittsburgh, he and his team spent four years poring over wireless electricity research in a lab hidden behind his family's coffee house. He figured much of the energy bouncing off walls could be captured. All you had to do was build a receiver that could act like a radio tuned to many frequencies at once.
 
"I realized we wanted to grab that static and harness it," Shearer says. "It's all energy."
Entrepreneur finds 'suite' dreams
 
So the Powercast team set about creating and patenting that receiver. Its tiny but hyperefficient receiving circuits can adjust to variations in load and field strength while maintaining a constant DC voltage. Thanks to the fact that it transmits only safe low wattages, the Powercast system quickly won FCC approval--and $10 million from private investors.
 
Powercast says it has signed nondisclosure agreements to develop products with more than 100 companies, including major manufacturers of cell phones, MP3 players, automotive parts, temperature sensors, hearing aids, and medical implants.
 
The last of those alone could be a multibillion-dollar market: Pacemakers, defibrillators, and the like require surgery to replace dead batteries. But with a built-in Powercast receiver, those batteries could last a lifetime.
 
"Everyone's looking to cut that last cord," says Alex Slawsby, a consultant at Innosight who specializes in disruptive innovation. "Think of the billion cell phones sold last year. If you could get Powercast into a small percentage of the high-end models, those would be huge numbers."
 
Could Powercast's technology also work for larger devices? Perhaps, but not quite yet. Laptop computers, for example, use more than 10 times the wattage of Powercast transmissions.
 
But industry trends are on Shearer's side: Thanks to less energy-hungry LCD screens and processors, PC power consumption is slowly diminishing. Within five years, Shearer says, laptops will be down to single-digit wattage--making his revenue potential even more electrifying.
 

Thursday, May 03, 2007

Rapid-fire pulse brings Sandia Z method closer to goal of high-yield fusion reactor

An electrical circuit that should carry enough power to produce the long-sought goal of controlled high-yield nuclear fusion and, equally important, do it every 10 seconds, has undergone extensive preliminary experiments and computer simulations at Sandia National Laboratories� Z machine facility.
 

Wednesday, May 02, 2007

Practical Holographic Video

The tyranny of two-dimensional computer and TV displays could soon be over. A team of MIT researchers has proposed a way to make a holographic video system that works with computer hardware for consumers, such as PCs with graphics cards and gaming consoles. The display, the researchers say, will be small enough to add to an entertainment center, provide resolution as good as a standard analog television, and cost only a couple hundred dollars.
 
A holographic video display could provide another way to view medical images such as MRIs and CT scans, as well as sets of complex, multidimensional data and designs for furniture and cars, says V. Michael Bove Jr., director of the consumer electronics program, CELab, at MIT. And the system would be a natural fit for displaying video games and virtual worlds. Most games now have sophisticated three-dimensional models sitting deep within their software, "but you don't see them because [the images are] rendered as a two-dimensional picture," Bove says.
 
The new system, called Mark III, is the third generation (following Mark I and Mark II) of MIT-designed holographic video displays that date back to the late 1980s. These earlier systems were "loud, finicky, required specialized computing hardware to generate a video signal, and were a general pain in the neck to work with," says Bove. A few years ago, he wondered if he could turn a laboratory-based holographic display system that cost tens of thousands of dollars into an affordable consumer product.
 
Bove and his team currently have a fourth generation of system lined up, which will be able to display an image as large as a desktop PC monitor; in contrast, the current system's displays are only about the size of a Rubik's Cube. Also, the current display is only capable of monochromatic holograms, but the fourth generation will have a full range of colors, Bove says.
 

Daily pill to beat genetic diseases

A pill that can correct a wide range of faulty genes which cause crippling illnesses should be available within three years, promising a revolution in the treatment of thousands of conditions.
 
The drug, known as PTC124, has already had encouraging results in patients with Duchenne muscular dystrophy and cystic fibrosis. The final phase of clinical trials is to begin this year, and it could be licensed as early as 2009.
 

Monday, April 30, 2007

Plastic solar cell efficiency breaks record at WFU nanotechnology center

The global search for a sustainable energy supply is making significant strides at Wake Forest University as researchers at the university�s Center for Nanotechnology and Molecular Materials have announced that they have pushed the efficiency of plastic solar cells to more than 6 percent.
 
In a paper to be published in an upcoming issue of the journal Applied Physics Letters, Wake Forest researchers describe how they have achieved record efficiency for organic or flexible, plastic solar cells by creating �nano-filaments� within light absorbing plastic, similar to the veins in tree leaves.  This allows for the use of thicker absorbing layers in the devices, which capture more of the sun�s light.
 
In order to be considered a viable technology for commercial use, solar cells must be able to convert about 8 percent of the energy in sunlight to electricity.  Wake Forest researchers hope to reach 10 percent in the next year, said Carroll, who is also associate professor of physics at Wake Forest.
 

Thursday, April 19, 2007

Scientists are creating artificial bones using a modified version of an inkjet printer.

The technology creates perfect replicas of bones that have been damaged and these can then be inserted in the body to help it to heal.

The process will revolutionise bone graft surgery, which currently relies on either bits of bone taken from other parts of the body or ceramic-like substitutes.

Original Aritcle

Wednesday, April 18, 2007

neuroArm: Exploring the Depths of Neurosurgery

neuroArm is an MRI-compatible, ambidextrous robot capable of performing the most technically challenging surgical procedures. Its dextrous components are two image-guided manipulators with end-effectors that mimic human hands and are capable of interfacing with new microsurgical tools. It has tremor filters that eliminate unwanted hand tremors seen under the microscope.
 
Each end-effector is equipped with a three-dimensional (3D) force-sensor providing the robot with its sense of touch. A surgeon, seated at a surgical workstation, controls the robot using force feedback hand-controllers. Combined with a 3D visual display of the surgical site and 3D MRI displays with superimposed 'virtual' tools, the workstation recreates the sight and sensation of microsurgery. Surgical simulation software on the workstation allows the surgeon to calculate the optimal incision site, plan a path that avoids critical structures and permits risk-free rehearsal of rare or complex procedures. To ensure safety, redundant computer systems continuously monitor and control neuroArm's movements.
 

Monday, April 16, 2007

Geordi come home

Software that can be taught to refine the information sent from a bionic eye to its wearer is being trialled in Germany.
Retinal implants can restore some vision to blind or partially blind people by taking over the job of turning light into signals transmitted to the brain. So far, about 10 people in Germany and 15 in the US have been fitted with such implants although expanded US trials are planned.
Eckmiller says the secret to improving these implants is to match the signals they produce with the signals that a healthy eye sends to the brain. One team in California, US, is trying to do that by building a copy of the retina's neurons in silicon. Eckmiller, along with colleagues Oliver Baruth and Rolf Schatten, plan to use learning software instead.


Original Article

Monday, April 09, 2007

Flexible Batteries That Never Need to Be Recharged

Mobiles phones, remote controls, and other gadgets are generally convenient--that is, until their batteries go dead. For many consumers, having to routinely recharge or replace batteries remains the weakest link in portable electronics. To solve the problem, a group of European researchers say they've found a way to combine a thin-film organic solar cell with a new type of polymer battery, giving it the capability of recharging itself when exposed to natural or indoor light.
 

Thursday, April 05, 2007

Building the Bionic Man

Once the realm of science fiction, bionics is slowly but surely becoming a reality. Advances in medical prostheses and computer technology are making the dream of building a bionic human a reality.
 

Tuesday, April 03, 2007

Ways to Lure Viruses to Their Death

There are only a few basic ways to fight viruses. A vaccine can prime the immune system to attack them as soon as they invade the body. If a virus manages to establish itself, a doctor may be able to prescribe a drug to slow down its spread. And if all else fails, a doctor may quarantine a patient to head off an epidemic.
 
Now some scientists are exploring a fundamentally different strategy to fight viruses. They want to wipe them out by luring them to their destruction, like mice to mousetraps.
 

Tuesday, March 27, 2007

Fantastic Voyage: from science fiction to reality

Under the direction of Professor Sylvain Martel, holder of the Canada Research Chair in Micro/Nanosystem Development, Construction and Validation, and in collaboration with researchers at the Centre hospitalier de l'Universit� de Montr�al (CHUM), the Polytechnique team has succeeded in injecting, propelling and controlling by means of software programs an initial prototype of an untethered device (a ferromagnetic 1.5- millimetre-diameter sphere) within the carotid artery of a living animal placed inside a clinical magnetic resonance imaging (MRI) system.

Encouraged by these results, staff at the Polytechnique NanoRobotics Laboratory are currently working to further reduce the size of the devices so that, within a few years, they can navigate inside smaller blood vessels.

Original Article

Friday, March 23, 2007

Search engine spawned from antiterrorism efforts finds place in business

[...]
 
The strength of the system, added Fetch Chairman and CTO Steve Minton, emanates from the machine learning focus of the search engine's agent-based tools. The system can recognize types of data based on a pattern and can apply what is learned about that pattern to future searches, Minton said.
 
In addition, the tool can mimic human behavior by automatically filling out a form without human intervention, using data from search results, according to Minton, a member of the original development team at the University of Southern California.
 

Technology Review's 10 Emerging Technologies of 2007

Technology Review has their 10 Emerging technologies of 2007 series of articles up.  Go take a look at http://www.technologyreview.com/special/emerging/
 

Thursday, March 22, 2007

Robot that roams the body to seek and destroy cancer

The idea of a beetle moving around inside your body may be the stuff of horror films. But scientists believe an insect-shaped robot could be a major weapon in the fight against cancer.
 
The device, just under an inch long, is designed to be inserted into the body through a small incision.
 
Once inside, doctors can control its movements and direct it to areas where investigations are needed.
 
[...]
 
However, unlike the plot of the 1966 Raquel Welch film Fantastic Voyage - which featured a microscopic crew and submarine travelling through a scientist's bloodstream - this device could not be inserted into blood vessels because it is too big.
 
I don't think devices that can do precisely that will be long in coming, and they won't need cables connecting them to the outside world either.

Friday, March 09, 2007

Nano tech in batteries

A123 Systems is delivering a new generation of batteries that deliver up to 10 times longer cycle life, five times more power and dramatically faster charge times over conventional high-power battery technology.

Connecting Your Brain to the Game

Emotiv Systems, an electronic-game company from San Francisco, wants people to play with the power of the mind. Starting tomorrow, video-game makers will be able to buy Emotiv's electro-encephalograph (EEG) caps and software developer's tool kits so that they can build games that use the electrical signals from a player's brain to control the on-screen action.
 
Emotiv's system has three different applications. One is designed to sense facial expressions such as winks, grimaces, and smiles and transfer them, in real time, to an avatar. This could be useful in virtual-world games, such as Second Life, in which it takes a fair amount of training to learn how to express emotions and actions through a keyboard. Another application detects two emotional states, such as excitement and calm. Emotiv's chief product officer, Randy Breen, says that these unconscious cues could be used to modify a game's soundtrack or to affect the way that virtual characters interact with a player. The third set of software can detect a handful of conscious intentions that can be used to push, pull, rotate, and lift objects in a virtual world.
 

Tuesday, February 27, 2007

Artificial Retina

Patients who have gone blind are a step closer to perhaps one day regaining some of their sight.

Researchers at the USC Doheny Eye Institute announced today the next step in their efforts to advance technology that hopefully will help patients with retinitis pigmentosa and macular degeneration regain some vision using an implanted artificial retina.

The announcement by Mark Humayun, professor of ophthalmology at the Keck School of Medicine of USC and associate director of research at the Doheny Retina Institute, came at a press conference at the annual meeting of the American Association for the Advancement of Science in San Francisco.

From Science Daily

Article from USC

Thursday, February 22, 2007

Research integrates photonic circuitry on a silicon chip

In work that could lead to completely new devices, systems and applications in computing and telecommunications, MIT researchers are bringing the long-sought goal of "optics on a chip" one step closer to market.
 
In the January 2007 inaugural issue of the journal Nature Photonics, the team reports a novel way to integrate photonic circuitry on a silicon chip. Adding the power and speed of light waves to traditional electronics could achieve system performance inconceivable by electronic means alone.
 
The MIT invention will enable such integrated devices to be mass-manufactured for the first time. And, depending on the growth of the telecom industry, the new devices could be in demand within five years, said co-author Erich P. Ippen, the Elihu Thomson Professor of Electrical Engineering and Physics.
 
The new technology will also enable supercomputers on a chip with unique high-speed capabilities for signal processing, spectroscopy and remote testing, among other fields.
 

New analog circuits could impact consumer electronics

Advances in digital electronic circuits have prompted the boost in functions and ever- smaller size of such popular consumer goods as digital cameras, MP3 players and digital televisions. But the same cannot be said of the older analog circuits in the same devices, which process natural sights and sounds in the real world. Because analog circuits haven't enjoyed a similar rate of progress, they are draining power and causing other bottlenecks in improved consumer electronic devices.
 
Now MIT engineers have devised new analog circuits they hope will change that. Their work was discussed at the International Solid State Circuits Conference (ISSCC) in San Francisco Feb. 11-15.
 
"During the past several decades engineers have focused on allowing signals to be processed and stored in digital forms," said Hae-Seung Lee, a professor in MIT's Microsystems Technology Laboratories (MTL) and the Department of Electrical Engineering and Computer Science (EECS). "But most real-world signals are analog signals, so analog circuits are an essential part of most electronic systems."
 
Analog circuits are used to amplify, process and filter analog signals and convert them to digital signals, or vice versa, so the real world and electronic devices can talk to each other. Analog signals are continuous and they vary in size, whereas digital signals have specific or discrete values.