News tagged with cell phone
New gov't rules allow unapproved iPhone apps (Update 3)
(AP) -- Owners of the iPhone will be able to legally unlock their devices so they can run software applications that haven't been approved by Apple Inc., according to new government rules announced Monday.
Jul 26, 2010 |
4.5 / 5 (25) |
9
Breakthrough could double wireless capacity with no new towers
The days of waiting for smartphones to upload video may be numbered. Rice University engineering researchers have made a breakthrough that could allow wireless phone companies to double throughput on their ...
Sep 06, 2011 |
4.9 / 5 (23) |
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Researchers develop new wireless technology for faster, more efficient networks
"Wireless communication is a one-way street. Over." Radio traffic can flow in only one direction at a time on a specific frequency, hence the frequent use of "over" by pilots and air traffic controllers, walkie-talkie ...
Feb 14, 2011 |
4.6 / 5 (21) |
16
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Can you analyze me now? Cell phones bring spectroscopy to the classroom
University of Illinois chemistry professor Alexander Scheeline wants to see high school students using their cell phones in class. Not for texting or surfing the Web, but as an analytical chemistry instrument.
Chemistry / Analytical Chemistry
Oct 07, 2010 |
4.9 / 5 (19) |
5
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Revolutionary new paper computer shows flexible future for smartphones, tablets (w/ video)
(PhysOrg.com) -- The world's first interactive paper computer is set to revolutionize the world of interactive computing.
May 04, 2011 |
4.2 / 5 (20) |
22
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Samsung announces the Galaxy Beam Smartphone with built-in projector
(PhysOrg.com) -- Cell phones are great, but one of their limitations is the size of the screen, which of necessity has to be small. To get around this problem, engineers have been for years toying with the ...
Electronics / Consumer & Gadgets
Feb 27, 2012 |
4.7 / 5 (14) |
4
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Researcher: Cell phones could double as night vision devices
(PhysOrg.com) -- Call it Nitelite: The newest app for cell phones might be night vision.
May 04, 2010 |
4.6 / 5 (14) |
10
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Adobe shows off new 'undo photo blur' feature
(PhysOrg.com) -- Despite all the advances in digital photography, most people are still plagued by the problem of blurry photos, a problem compounded by the use of cameras embedded in cell phones due to their small size. ...
Oct 13, 2011 |
4.3 / 5 (14) |
17
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iPhone makes great snitch for savvy cops
Got an iPhone in your pocket? Then you might be storing even more personal information than you realize. And some of it could be used against you if you're ever charged with a crime.
Electronics / Consumer & Gadgets
Sep 01, 2010 |
4.5 / 5 (13) |
9
Justice Dept. wants phone locales without warrant
(AP) -- Should the government be allowed to track a person's movements based on cell phone records, without evidence of criminal wrongdoing?
Feb 12, 2010 |
5 / 5 (11) |
43
The power of 'random': 'Seemingly loopy' technique could dramatically improve communications networks
A radical new approach to the design of communications networks, called "network coding," promises to make Internet file sharing faster, streaming video more reliable, and cell-phone reception better -- among ...
Technology / Computer Sciences
Feb 09, 2010 |
4.7 / 5 (11) |
6
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Transparent batteries: seeing straight through to the future? (w/ video)
(PhysOrg.com) -- Stanford researchers have invented a transparent lithium-ion battery that is also highly flexible. It is comparable in cost to regular batteries on the market today, with great potential for ...
Jul 25, 2011 |
4.7 / 5 (11) |
7
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Cell phones that protect against deadly chemicals? Why not?
Do you carry a cell phone? Today, chances are it's called a "smartphone" and it came with a three-to-five megapixel lens built-in -- not to mention an MP3 player, GPS or even a bar code scanner. This 'Swiss-Army-knife' ...
Apr 09, 2010 |
4.6 / 5 (11) |
5
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Ambient electromagnetic energy harnessed for small electronic devices
(PhysOrg.com) -- Researchers have discovered a way to capture and harness energy transmitted by such sources as radio and television transmitters, cell phone networks and satellite communications systems. ...
Jul 07, 2011 |
5 / 5 (9) |
14
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Hacker drone launches airborne cyber attacks
Computer security specialists showed off a homemade drone aircraft Friday capable of launching airborne cyber attacks, hijacking mobile phone calls, or even delivering a dirty bomb.
Aug 06, 2011 |
5 / 5 (9) |
3
Mobile phone
A mobile phone or mobile (also called cellphone and handphone, as well as cell phone, wireless phone, cellular phone, cell, cellular telephone, mobile telephone or cell telephone) is a long-range, electronic device used for mobile voice or data communication over a network of specialized base stations known as cell sites. In addition to the standard voice function of a mobile phone, telephone, current mobile phones may support many additional services, and accessories, such as SMS for text messaging, email, packet switching for access to the Internet, gaming, Bluetooth, infrared, camera with video recorder and MMS for sending and receiving photos and video, MP3 player, radio and GPS. Most current mobile phones connect to a cellular network consisting of switching points and base stations (cell sites) owned by a mobile network operator (the exception is satellite phones, which are mobile but not cellular).
As opposed to a radio telephone, a mobile phone offers full duplex communication, automatised calling to and paging from a public switched telephone network (PSTN), handoff (am. English) or handover (European term) during a phone call when the user moves from one cell (base station coverage area) to another. A mobile phone offers wide area service, and should not be confused with a cordless telephone, which also is a wireless phone, but only offer telephony service within a limited range, e.g. within a home or an office, through a fixed line and a base station owned by the subscriber.
The International Telecommunication Union estimated that mobile cellular subscriptions worldwide would reach approximately 4.1 billion by the end of 2008. Mobile phones have gained increased importance in the sector of Information and communication technologies for development in the 2000s and have effectively started to reach the bottom of the economic pyramid.
For more information about Mobile phone, read the full article at
Wikipedia.
This text uses material from Wikipedia and is available under the GNU Free Documentation License.
