Researchers create Amazing X-Ray Wireless Network!




digg_url = ‘http://digg.com/hardware/Researchers_create_Amazing_X_Ray_Wireless_Network’;

Don’t freak out or anything, but those wireless signals you bask in everyday could be watching you. Or at least they might, someday, if the work from a group of researchers at the University of Utah makes it beyond the lab. As Technology Review’s Physics arXiv blog reports, they’ve devised a means to modify a standard 802.15.4 wireless network (commonly used by home automation services like ZigBee) to actually “see” movement through walls, and with some degree of accuracy, no less. As you might expect, however, that’s not quite as simple as a firmware upgrade, and currently requires a 34-node network to keep watch on a standard living room, which is apparently enough to pin down moving objects within a meter or so. To do that, the system essentially bombards the space with an array of wireless signals and keeps watch on any changes in signal strength, building up a “picture” of the room in the process. No promises on a commercial version just yet, but the researchers see plenty of potential for it, and are even talking about a portable, GPS-equipped version that police or emergency responders could use before entering a dangerous area.

Filed under:

Researchers create Amazing X-Ray Wireless Network! originally appeared on Engadget on Thu, 01 Oct 2009 15:27:00 EST. Please see our terms for use of feeds.

Read | Permalink | Email this | Comments

Sierra Wireless adds 2-in-1 HSPA+ AirCards to a lineup already fraught with action and danger



Sierra Wireless has just announced five new AirCard data cards and USB modems, including devices supporting HSPA+ frequencies. The AirCard 503, AirCard USB 308, and AirCard USB 309 all support peak download speeds of 21Mbps, with the former being a 2-in-1 PC card / ExpressCard device and the latter two being basically the same USB modem (except the first one supports 850MHz, 1900MHz, and 2100MHz frequencies, while AirCard USB 309 limits you to 900MHz and 2100MHz bands). If the raw excitement and glamor of HSPA+ speeds are more than you (or your budget) can handle, the company is also introducing a couple plain ol’ HSPA cards with respectable peak downloads of 7.2Mbps and peak uploads of 5.76Mbps. The AirCard USB 301 supports 850MHz and 2100 MHz bands, while the AirCard USB 302 does its thing in the 900MHz and 2100MHz range. Scheduled to begin shipping in the fourth quarter of this year for prices to be announced. PR after the break.

Continue reading Sierra Wireless adds 2-in-1 HSPA+ AirCards to a lineup already fraught with action and danger

Filed under: ,

Sierra Wireless adds 2-in-1 HSPA+ AirCards to a lineup already fraught with action and danger originally appeared on Engadget on Thu, 01 Oct 2009 15:03:00 EST. Please see our terms for use of feeds.

Read | Permalink | Email this | Comments

Video: BumpTop 1.2 with multitouch support available now



BumpTop 1.2 is now available, adding multitouch support to the already impressive list of features available for the 3D desktop. Check out the free download and you’ll soon be introduced to a host of new gestures, including the scrunch (where you can grab a handful of items and pull ‘em into a pile), wall focus and rotate, and some quick and easy photo editing. As always, you can download the free version to get started, but if you want to take advantage of stuff like un-watermarked image previews and unlimited sticky notes, you’ll have to shell out $29 for the pro version. Sorry, Mac and Linux users — this is still a Windows-only affair. But we do have a video for you! You know where to find it — after the break, of course.

Continue reading Video: BumpTop 1.2 with multitouch support available now

Filed under: ,

Video: BumpTop 1.2 with multitouch support available now originally appeared on Engadget on Thu, 01 Oct 2009 14:44:00 EST. Please see our terms for use of feeds.

Read | Permalink | Email this | Comments

Amazon clarifies Kindle book-deletion policy, can still delete books



Amazon might have been extremely contrite about remotely deleting 1984 from Kindles, but a Jeff Bezos apology and an offer to restore the book doesn’t necessarily add up to a meaningful change in policy. As part of the settlement with that student who sued over the 1984 situation, Amazon’s had to clarify its remote-deletion guidelines, and they’re pretty much the same as ever: they’ll hit the kill switch if you ask for a refund or if your credit card is declined, if a judge orders them to, or if they need to protect the Kindle or the network from malware. Sounds simple, right?

Well, sort of — saying they’ll delete content at the behest of judicial or regulatory decree pretty much leaves the door open to exactly the same situation as the 1984 debacle, just a couple procedural steps down the line and with less blame placed on Amazon. If you’ll recall, 1984 was deleted after the publisher was sued for not having the proper rights, and Amazon took the proactive step of deleting the content — and although Amazon won’t do that on its own anymore, all it takes now is one strongly-worded motion before a sympathetic judge and we’re back at square one. That’s pretty troubling — no judge can order a physical bookseller to come into your house and retrieve a book they’ve sold you, and saying things are different for the Kindle raises some interesting questions about what Amazon thinks “ownership” means. We’ll see how this one plays out in practice, though — we’re hoping Amazon never has to pull that switch again.

Filed under:

Amazon clarifies Kindle book-deletion policy, can still delete books originally appeared on Engadget on Thu, 01 Oct 2009 14:27:00 EST. Please see our terms for use of feeds.

Read | Permalink | Email this | Comments

Windows 7 party pack fittingly arrives on party-filled Cayman Islands



Well, would you look at that? With the launch of Microsoft’s next operating system merely 21 days away (give or take a few hours based on time zone), the Redmond giant seems to be proactively sending out Win7 Launch Party packs already. The first “unboxing” we’ve seen comes to us from a most unusual spot, one that Microsoft wasn’t actually equipped to ship to when the program first started. After a stern email or two sent over several bodies of water and through countless Stimulus-inspired road construction hang-ups, the bundle you see laid out above landed in the beautiful Cayman Islands. Within was a Steve Ballmer Signature Edition of Win7 (so, we’re up to seven versions now?), a pack of Win7 playing cards, a poster, some napkins (to wipe the drool from your friends’ faces after they experience Aero Shake for the first time) and even a puzzle. So, should we book a flight to Grand Cayman, Little Cayman or Cayman Brac? This is one shindig we definitely won’t miss.

[Thanks, Jared]

Filed under:

Windows 7 party pack fittingly arrives on party-filled Cayman Islands originally appeared on Engadget on Thu, 01 Oct 2009 14:08:00 EST. Please see our terms for use of feeds.

Read | Permalink | Email this | Comments