News tagged with phone communications

Bending the light with a tiny chip

(Phys.org) —Imagine that you are in a meeting with coworkers or at a gathering of friends. You pull out your cell phone to show a presentation or a video on YouTube. But you don't use the tiny screen; your phone projects ...

dateMar 10, 2014 in Optics & Photonics
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GSM system about to be compromised

(PhysOrg.com) -- Research scientists in California and elsewhere are deliberately setting out to compromise the mobile phone system used by around three billion people. The system uses Global System for Mobile communications ...

dateDec 08, 2009 in Telecom weblog
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Space: The final frontier for cell phones?

(AP) -- The vast, thinly populated expanses of the country that still lack cell phone coverage could be getting an interesting option next year: ordinary-looking cell phones that connect to a satellite when there's no cell ...

dateApr 09, 2009 in Telecom
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New loss mechanism for global 4G roaming

A loss mechanism that has not been an issue in previous mobile handset antennas will become important for global 4G roaming, according to results of experiments carried out in Aalborg, Denmark.

dateAug 19, 2014 in Telecom
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