Gesture-Based Remote Control

Gesture-Based Remote Control

Soon you'll be able to simply point at your television and control it with hand gestures.

Soon you'll be able to simply point at your television and control it with hand gestures.

We love our mice, really we do. Sometimes, however, such as when we're sitting on the couch watching a DVD on a laptop, or when we're working across the room from an MP3-playing PC, it just isn't convenient to drag a hockey puck and click on what we want. Attempts to replace the venerable mouse--whether with voice recognition or brain-wave scanners--have invariably failed. But an alternative is emerging.

What is it? Compared with the intricacies of voice recognition, gesture recognition is a fairly simple idea that is only now making its way into consumer electronics. The idea is to employ a camera (such as a laptop's Webcam) to watch the user and react to the person's hand signals. Holding your palm out flat would indicate "stop," for example, if you're playing a movie or a song. And waving a fist around in the air could double as a pointing system: You would just move your fist to the right to move the pointer right, and so on.

When is it coming? Gesture recognition systems are creeping onto the market now. Toshiba, a pioneer in this market, has at least one product out that supports an early version of the technology: the Qosmio G55 laptop, which can recognize gestures to control multimedia playback. The company is also experimenting with a TV version of the technology, which would watch for hand signals via a small camera atop the set. Based on my tests, though, the accuracy of these systems still needs a lot of work.

Gesture recognition is a neat way to pause the DVD on your laptop, but it probably remains a way off from being sophisticated enough for broad adoption. All the same, its successful development would excite tons of interest from the "can't find the remote" crowd. Expect to see gesture recognition technology make some great strides over the next few years, with inroads into mainstream markets by 2012.

Radical Simplification Hits the TV Business

The back of most audiovisual centers looks like a tangle of snakes that even Medusa would turn away from. Similarly, the bowl of remote controls on your coffee table appeals to no one. The Tru2way platform may simplify things once and for all.

What is it? Who can forget CableCard, a technology that was supposed to streamline home A/V installations but that ultimately went nowhere despite immense coverage and hype? CableCard just didn't do enough--and what it managed to do, it didn't do very well. Enter Tru2way.

Tru2way is a set of services and standards designed to pick up the pieces of CableCard's failure by upgrading what that earlier standard could do (including support for two-way communications features like programming guides and pay-per-view, which CableCard TVs couldn't handle), and by offering better compatibility, improved stability, and support for dual-tuner applications right out of the box. So if you have a Tru2way-capable TV, you should need only to plug in a wire to be up and running with a full suite of interactive cable services (including local search features, news feeds, online shopping, and games)--all sans additional boxes, extra remotes, or even a visit from cable-company technicians.

When is it coming? Tru2way sets have been demonstrated all year, and Chicago and Denver will be the first markets with the live technology. Does Tru2way have a real shot? Most of the major cable companies have signed up to implement it, as have numerous TV makers, including LG, Panasonic, Samsung, and Sony. Panasonic began shipping two Tru2way TVs in late October, and Samsung may have sets that use the technology available in early to mid-2009.

Curtains for DRM

RealDVD's DRM-free format makes taking flicks on the road easier. This is the future of entertainment.

RealDVD's DRM-free format makes taking flicks on the road easier. This is the future of entertainment.

Petrified of piracy, Hollywood has long relied on technical means to keep copies of its output from making the rounds on peer-to-peer networks. It hasn't worked: Tools to bypass DRM on just about any kind of media are readily available, and feature films often hit BitTorrent even before they appear in theaters. Unfortunately for law-abiding citizens, DRM is less a deterrent to piracy than a nuisance that gets in the way of enjoying legally obtained content on more than one device.

What is it? It's not what it is, it's what it isn't--axing DRM means no more schemes to prevent you from moving audio or video from one form of media to another. The most ardent DRM critics dream of a day when you'll be able to take a DVD, pop it in a computer, and end up with a compressed video file that will play on any device in your arsenal. Better yet, you won't need that DVD at all: You'll be able to pay a few bucks for an unprotected, downloadable version of the movie that you can redownload any time you wish.

When is it coming? Technologically speaking, nothing is stopping companies from scrapping DRM tomorrow. But legally and politically, resistance persists. Music has largely made the transition already--Amazon and iTunes both sell DRM-free MP3s that you can play on as many devices as you want.

Video is taking baby steps in the same direction, albeit slowly so far. One recent example: RealNetworks' RealDVD software (which is now embroiled in litigation) lets you rip DVDs to your computer with one click, but they're still protected by a DRM system. Meanwhile, studios are experimenting with bundling legally rippable digital copies of their films with packaged DVDs, while online services are tiptoeing into letting downloaders burn a copy of a digital movie to disc.

That's progress, but ending all DRM as we know it is still years off. Keep your fingers crossed--for 2020.

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15 Hot New Technologies That Will Change Everything

The Future of Your PC's Hardware

Memristor: A Groundbreaking New Circuit

This simple memristor circuit could soon transform all electronic devices.

This simple memristor circuit could soon transform all electronic devices.

Since the dawn of electronics, we've had only three types of circuit components--resistors, inductors, and capacitors. But in 1971, UC Berkeley researcher Leon Chua theorized the possibility of a fourth type of component, one that would be able to measure the flow of electric current: the memristor. Now, just 37 years later, Hewlett-Packard has built one.

What is it? As its name implies, the memristor can "remember" how much current has passed through it. And by alternating the amount of current that passes through it, a memristor can also become a one-element circuit component with unique properties. Most notably, it can save its electronic state even when the current is turned off, making it a great candidate to replace today's flash memory.

Memristors will theoretically be cheaper and far faster than flash memory, and allow far greater memory densities. They could also replace RAM chips as we know them, so that, after you turn off your computer, it will remember exactly what it was doing when you turn it back on, and return to work instantly. This lowering of cost and consolidating of components may lead to affordable, solid-state computers that fit in your pocket and run many times faster than today's PCs.

Someday the memristor could spawn a whole new type of computer, thanks to its ability to remember a range of electrical states rather than the simplistic "on" and "off" states that today's digital processors recognize. By working with a dynamic range of data states in an analog mode, memristor-based computers could be capable of far more complex tasks than just shuttling ones and zeroes around.

When is it coming? Researchers say that no real barrier prevents implementing the memristor in circuitry immediately. But it's up to the business side to push products through to commercial reality. Memristors made to replace flash memory (at a lower cost and lower power consumption) will likely appear first; HP's goal is to offer them by 2012. Beyond that, memristors will likely replace both DRAM and hard disks in the 2014-to-2016 time frame. As for memristor-based analog computers, that step may take 20-plus years.

32-Core CPUs From Intel and AMD

8-core Intel and AMD CPUs are about to make their way onto desktop PCs everywhere. Next stop: 16 cores.

8-core Intel and AMD CPUs are about to make their way onto desktop PCs everywhere. Next stop: 16 cores.

If your CPU has only a single core, it's officially a dinosaur. In fact,quad-core computing is now commonplace; you can even get laptop computers with four cores today. But we're really just at the beginning of the core wars: Leadership in the CPU market will soon be decided by who has the most cores, not who has the fastest clock speed.

What is it? With the gigahertz race largely abandoned, both AMDand Intel are trying to pack more cores onto a die in order to continue to improve processing power and aid with multitasking operations. Miniaturizing chips further will be key to fitting these cores and other components into a limited space. Intel will roll out 32-nanometer processors (down from today's 45nm chips) in 2009.

When is it coming? Intel has been very good about sticking to its road map. A six-core CPU based on the Itanium design should be out imminently, when Intel then shifts focus to a brand-new architecture called Nehalem, to be marketed as Core i7. Core i7 will feature up to eight cores, with eight-core systems available in 2009 or 2010. (And an eight-core AMD project called Montreal is reportedly on tap for 2009.)

After that, the timeline gets fuzzy. Intel reportedly canceled a 32-core project called Keifer, slated for 2010, possibly because of its complexity (the company won't confirm this, though). That many cores requires a new way of dealing with memory; apparently you can't have 32 brains pulling out of one central pool of RAM. But we still expect cores to proliferate when the kinks are ironed out: 16 cores by 2011 or 2012 is plausible (when transistors are predicted to drop again in size to 22nm), with 32 cores by 2013 or 2014 easily within reach. Intel says "hundreds" of cores may come even farther down the line.

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