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Signal

TELECOMMUNICATIONS

Wireless optical system offers one gigabit per second transmission

By Paul Ridden

19:31 January 28, 2010 PST

The Wi-Fi connection in the HUB-Robeson Center at Penn State being used by students. Resea...

Sending and receiving data over a wireless network is generally undertaken via radio waves. But that's not the only method. Using the optical spectrum offers the advantage of better security and blisteringly fast transfer rates to boot. Engineers from Pennsylvania State University have now succeeded in moving data outside the usual line of sight restrictions at speeds of over one gigabit per second, more than double that achieved by Siemens recently. Read More

PERSONAL COMPUTING

VESA announces DisplayPort v1.2

By Mick Webb

20:16 January 22, 2010 PST

VESA has unveiled Displayport v1.2

The Video Electronics Standard Association (VESA) has unveiled the long awaited DisplayPort Version1.2 digital display interface that brings with it a host of enhanced features. Aside from a doubled data rate of 21.6Gbps and bi-directional USB data transfer of an impressive 720Mbps, the upgrade also offers multi – monitor support from a single plug, improved audio synchronization and support for Full HD 3D Stereoscopic displays. Read More

SPY GEAR

Spy vs spy – wireless camera detector lets you sleep easy or play hard (in privacy)

By Jeff Salton

23:25 November 23, 2009 PST

The Chinavision CMVM-J19 spy camera and Wi-Fi detector

If you don’t trust that shifty-looking night supervisor at the motel or the suspicious-looking smoke detector in your room, or if you just value your privacy, help could be at hand. A quick scan of your room or surrounds with the Chinavision CVMV-J19 Spy Wi-Fi Signal and Camera Lens Detector should let you sleep easy or play hard – in privacy (I guarantee there are a few celebrities who wish they had one). Read More

RESEARCH WATCH

Newly theorized active cloaking could achieve broadband invisibility

By Dario Borghino

18:41 August 24, 2009 PDT

With active cloaking, three devices placed around an object neutralize and later rebuild t...

Mathematicians at the University of Utah have recently announced they have elaborated an innovative way to shield two-dimensional objects from all types of waves, from electromagnetic to those caused by natural events like earthquakes and tsunamis, leading the way to a completely new approach to achieving invisibility. Read More

URBAN TRANSPORT

Spooklight signals your cycling intentions with a wireless indicator and brake light

By Darren Quick

22:20 August 13, 2009 PDT

The Spooklight wireless indicator and brake light

City cycling is an activity fraught with danger but cyclists’ safety can be enhanced by increasing their visibility and also by signaling their movements to fellow road-users. Options such as the Safe Turn Indicator help in that department but now there’s a new product called the Spooklight that could achieve the same feat without the need to strap LED lights to your wrists. Read More

RESEARCH WATCH

Tiny MEMS devices to filter, amplify electronic signals

By Jeff Salton

18:42 August 13, 2009 PDT

Prof Jeffrey Rhoads and graduate student Venkata Bharadwaj Chivukula have created a new ME...

Researchers are developing a new class of tiny mechanical devices, made up of vibrating structures the thickness of a human hair, that could be used to filter electronic signals in cell phones and other applications. Only the size of a grain of sand, these microelectromechanical systems (MEMS) will, nonetheless, improve performance and reduce power usage. Read More

ELECTRONICS

PowerFlare LED safety lights offer safe alternative to chemical emergency flares

By Alan Brandon

16:44 June 3, 2009 PDT

PowerFlare PF-200 LED safety light

PowerFlare’s PF-200 electronic LED safety light is not your average roadside flare. Invented by Ken Dueker, a former police officer and PowerFlare’s CEO, the PowerFlare PF-200 replaces chemical flares with a reusable, non-combusting alternative. Each PF-200 features a 360-degree LED array protected by a ruggedized plastic housing that can withstand the weight of a fire truck. Read More

 
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