There are a variety of small and portable scanners available for those who need on-the-spot scanning abilities. One of the latest to come up is Apparent's Doxie Go, a compact, battery-powered mobile scanner.
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Sunday, December 9, 2012
Lawyer sues Microsoft over Surface tablet storage
Surviving the Mobile Cliff
Apple and Google Joining Forces On Kodak Patents Bid
Read more of this story at Slashdot.
Windows Store has enough apps to prevent Windows RT flop, say analysts
Hackers hit UN conference debating future internet governance
Citrix buys corporate MDM tool company Zenprise
The past, present, and future of bionic eyes
Next-generation bionic eyes are practically here today. Imagine a blind person’s real-world conundrum trying to shop for one — they could schedule surgery for Nano Retina’s implant today and see their daughter’s wedding in 576-pixel clarity, but it would cost them their life’s savings. The Nano Retina 5000-pixel device could be ready tomorrow, or in another six months… and would be much more affordable. When the procedure involves assimilation of an electrode pincushion into the ganglionic tentacles of your retina, hardware upgrades are not as simple as popping in more RAM. What kind of decision matrix could be offered under such critical circumstances?
Cochlear implants, used to restore hearing, work phenomenally well when properly tuned and fitted. Most are refinements of the basic piece of hardware one might have sitting on their bookshelf — the graphic equalizer. The implant processes a single audio stream into bins of various sizes according to frequency, and then applies current to the corresponding frequency location in the cochlea, typically with a 16-spot linear electrode. The main function of these devices is to capture speech formants — the peaks in the frequency spectrum of the voice. The toughest challenge for the cochlear implant is to provide sound localization and source separation in noisy environments like a cocktail party.
Vision implants are much more complex. As any practiced photographer knows, the eye is more than a camera. The optic nerve does not feed the brain pixels. If you imagine your camera responding to auto-selected targets several times a second, gathering the full spectrum of light through its entire range of settings at each pause, and compressing the data onto a bandwidth- and energy-limited channel ideally matched to its receiver, you have some idea of what the retina accomplishes routinely.
The reason cochlear implants work so well is that the brain is just that good at making sense out of virtually any kind of signal it is given. If presented only with noise, or with nothing at all, the brain will eventually begin to manufacture hallucinations. If the implant signal contains even some distorted fragment of the original signal, it can be made to work convincingly. This is also the reason why retina implants can work without incorporating any knowledge of what the retina actually does in the healthy state.
These days researchers are trying to do a little better than the grainy images provided through our current implants. Signal processing techniques were developed in the Cold War era to track and target incoming missiles by extracting signals from noisy radar data. These same techniques are now used to convert the activity of groups of neurons in the motor cortex into a set of commands for moving a cursor, prosthetic device, or de-enervated limb in brain machine interfaces (BCIs). These methods and derivations of them can also be applied to incoming sensory data and can approximate what the retina actually does, without doing it in the same way.
Unfortunately, videos and TED talks are not the places where this kind of knowledge is typically transmitted in much depth. For that, one needs to look back to the work of the founding father of cybernetics, Norbert Wiener, and his eminently practical inspiration, Vito Volterra. After suggesting that helium be used instead of hydrogen in airships, to great success, Volterra shifted gears and came up with some methods to characterize complex systems. Wiener simplified Volterra’s equations and they are now widely used today in statistical techniques like linear regression analysis, and analysis of spike trains from neurons.
Next page: The future of high-res bionic eyes
Saturday, December 8, 2012
Microsoft patches Surface in Windows RT’s first Patch Tuesday
Although it hasn’t even been out for a month, Microsoft has already rolled out the first update for its Surface RT product. The update was introduced alongside bug fixes for other Microsoft products, like Windows 8, as part of the company’s Patch Tuesday bonanza. The firmware update includes seven patches for Windows RT, including two [...]
Analysts dissect Microsoft's Windows 8 pitch
Ticking Arctic Carbon Bomb May Be Bigger Than Expected
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Magid: Microsoft's future looks grim
Yes, you can update your Mac's hard drive firmware in OS X
UK government jobs website exploited by hackers
How to create a mind, or die trying
I was clutching at the face of a rock but it would not hold. Gravel gave way. I grasped for a shrub, but it pulled loose, and in cold terror I fell into the abyss.
Thus spoke amateur rock climber Heinz Pagels, the real-life inspiration for mathematician Ian Malcolm in Michael Critchon’s Jurassic Park novels, about a recurring nightmare he had been having. If continuity of consciousness could some day be guaranteed through software or hardware backups of the mind, risky sport, like climbing, might become a lot more popular. Mind uploads and copies, conscious machine intelligences and connectomes are the kinds of things that keep a man like Ray Kurzweil up at night.
With the publication of his 2005 book, “The Singularity is Near,” Kurzweil single-handedly mainstreamed the concept of a technological singularity. Presumably, when the singularity is reached, machine intelligence will have attained human-level equivalence and therefore be capable of consciousness. The future fate of humanity would at this point become unpredictable, then unknowable. Kurzweil’s estimation for the singularity to begin in less than 30 years has raised eyebrows — and controversy. With his newly released book “How to Create a Mind,” Kurzweil seeks to better ground his former work, and in the process takes stock the current state-of-art in brain mapping, machine intelligence, and how we came to be where we are today.
Among its many gems, Kurzweil’s new release looks to define ways in which the human brain will overcome its limitations by either merging with, or being downloaded to, the hardware of our machines. The most palatable option would be to expand the natural architecture of the brain, augmenting it by sharing resource with the the cloud of the future through appropriate interface. The more daring option would be for future minds to abandon flesh and blood hardware, resolving instead to neuromorphic hardware or to software running on more traditional computing elements.
In an incident disturbingly similar to his dream, Pagels fell to his death in 1988 while climbing Pyramid Peak in Colorado. Perhaps even more poignant, his last published work, “Complexity as Thermodynamic Depth,” serves as the first clear articulation as to why a human consciousness will never be “dragged and dropped” in the manner of copying a piece of software and uploading it to a machine. Like his Jurassic Park counterpart, Pagels strove to understand what makes complex systems so complex. He formalized the notion that copies that are easy to create are not very “deep,” as brains are systems that are neither completely ordered nor completely random.
Consider, for example, a box containing two hard drives, each with Windows 8 installed. One might then ask how much more complex is this box, then a box containing just a single Windows 8 hard drive? If complexity is defined as thermodynamic depth — essentially a measure of how hard it is to put something together from elementary pieces — then the answer would be not that much. On the other hand, a box containing both Jayne and Joan Boyd, the original Doublemint Twins of Wrigley’s fame, would have roughly double the thermodynamic depth of a box containing just Joan.
Next page: The ever-changing nature of the brain…
Return Policy Cheat Sheet
Microsoft Surface goes on sale to cheering crowds
Speeding up Chrome on Macs
Windows 8 to Boost Sophisticated Business Use of Tablets and Smartphones
iOS 5: What We Wanted vs. What We Got
Friday, December 7, 2012
Get Organized: Budgeting for the Holidays
GameSpy's New Owners Begin Disabling Multiplayer Without Warning
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Pay Now, Save Later: T-Mobile to Ditch Phone Subsidies in 2013
10 Gifts for the Geek Who Has Everything
David Cameron confirms £50m for Tech City regeneration in Old Street
Maker of Hackable Hotel Locks Finally Agrees To Pay For Bug Fix
Read more of this story at Slashdot.