Showing posts with label Cell phones. Show all posts
Showing posts with label Cell phones. Show all posts

Wednesday, August 10, 2011

Recycle Energy by LCD

 Novel technology allows LCDs to recycle energy.
We've all worried about the charge on our smartphone or laptop running down when we have no access to an electrical outlet. But new technology developed by researchers at the UCLA Henry Samueli School of Engineering and Applied Science could finally help solve the problem.
The UCLA engineers have created a novel concept for harvesting and recycling energy for electronic devices — one that involves equipping these devices' LCD screens with built-in photovoltaic polarizers, allowing them to convert ambient light, sunlight and their own backlight into electricity.
LCDs, or liquid crystal displays, are used in many of today's electronic devices, including smartphones, TV screens, computer monitors, laptops and tablet computers. They work by using two polarized sheets that let only a certain amount of a device's backlight pass through. Tiny liquid crystal molecules are sandwiched between the two polarizers, and these crystals can be switched by tiny transistors to act as light valves. Manipulating each light valve, or pixel, lets a certain amount of the backlight escape; millions of pixels are combined to create images on LCDs.
The UCLA Engineering team created a new type of energy-harvesting polarizer for LCDs called a polarizing organic photovoltaic, which can potentially boost the function of an LCD by working simultaneously as a , a photovoltaic device and an ambient light or sunlight photovoltaic panel.
Their research findings are currently available in the online edition of the journal Advanced Materials and will be published in a forthcoming print issue of the journal.
"I believe this is a game-changer invention to improve the efficiency of LCD displays," said Yang Yang, a professor of materials science at UCLA Engineering and principal investigator on the research. "In addition, these polarizers can also be used as regular solar cells to harvest indoor or outdoor light. So next time you are on the beach, you could charge your iPhone via sunlight."
From the point of view of energy use, current LCD polarizers are inefficient, the researchers said. A device's backlight can consume 80 to 90 percent of the device's power. But as much as 75 percent of the light generated is lost through the polarizers. A polarizing organic photovoltaic LCD could recover much of that unused energy.
"In the near future, we would like to increase the efficiency of the polarizing organic photovoltaics, and eventually we hope to work with electronic manufacturers to integrate our technology into real products", Yang said. "We hope this energy-saving LCD will become a mainstream technology in displays."
"Our coating method is simple, and it can be applied in the future in large-area manufacturing processes," said Rui Zhu, a postdoctoral researcher at UCLA Engineering and the paper's lead author.
"The polarizing organic photovoltaic cell demonstrated by Professor Yang's research group can potentially harvest 75 percent of the wasted photons from LCD backlight and turn them back into electricity," said Youssry Boutros, program director for the Intel Labs Academic Research Office, which supported the research. "The strong collaboration between this group at UCLA Engineering and other top groups has led to higher cell efficiencies, increasing the potential for harvesting energy. This approach is interesting in its own right and at the same time synergetic with several other projects we are funding through the Intel Labs Academic Research Office."
More information: http://onlinelibra … 514/abstract
Provided by University of California Los Angeles (news : web)

Thursday, June 30, 2011

10 Tablets That Can Challenge iPad2

Apple iPad 2 Rivals: 10 Tablets That Can Challenge the Market Leader

Apple's iPad 2 has become an unbridled success in the tablet market. No other mobile device in the space, including the Motorola Xoom, has been able to appeal to consumers and enterprise customers in the same way the iPad 2 has. Looking ahead, most analysts agree that Apple's tablet will dominate that market and fend off Android's growth. But that doesn't mean there aren't compelling alternatives currently available or launching soon for consumers and enterprise users who don't necessarily want to get their hands on an iPad 2. Those alternatives, which range from other tablets to lightweight notebooks, offer something unique that might catch a customer's eye. Flip through the following slides to find out which devices, both available now and launching soon, might just suit the fancy of those customers who have balked at the idea of buying an iPad 2 and want to use another mobile device while they're on the road, at home or traveling on a plane.

HP TouchPad

The HP TouchPad is scheduled to hit store shelves on July 1. And when it does, it just might end up being a fine alternative to Apple's iPad 2. The reason for that is its unique feature set, including the ability to tap an HP smartphone against it to transfer content. Combine that with a vastly improved webOS along with the promise of full multitasking, and the TouchPad might catch the eye of those who don't want an iPad 2.

RIM BlackBerry PlayBook

Research In Motion's BlackBerry PlayBook performed relatively well in the last quarter, with 500,000 units shipped. Although it might not hold up well against the iPad 2 for consumers, it has found a welcoming market in the enterprise. The BlackBerry PlayBook works well when it's integrated with a BlackBerry smartphone, and with a 7-inch display it's designed to be mobile. For enterprise users, it's a fine alternative to the iPad 2

Samsung Galaxy Tab 10.1

The Samsung Galaxy Tab 10.1 is already being called the best Android tablet on the market. Because of that, it becomes an obvious alternative to Apple's iPad 2 for those who don't necessarily want to get caught up with an iOS-based device and would rather opt for an Android tablet. The Galaxy Tab's 10.1-inch display is slightly larger than the 9.7-inch option on the iPad 2, which might appeal to those who want a large display to enjoy entertainment content.

Apple MacBook Air

Although Apple won't say so, the iPad 2 and MacBook Air compete against each other. Apple's MacBook Air comes with a lightweight and thin footprint that will appeal to those who want to be mobile. Thanks to its Mac OS X installation, users will be able to have access to apps in the Mac App Store, as well as more-capable programs not found on iOS. Mac OS X "Lion," which is scheduled to launch next month, will bring multitouch gestures to the platform, helping the MacBook Air appeal to those seeking hands-on functionality.

Sony S1

Sony is expected to launch the S1 tablet this fall. The device will come with a 9.4-inch screen and run Android. But what makes it compelling is Sony's decision to include its Qriocity music and movie service with the device, as well as access to PlayStation Suite, a platform that will allow users to play old PlayStation games on the tablet. Will the S1 take out the iPad 2? Probably not. But it might catch on with some consumers.

Sony S2

In addition to the S1, Sony is planning to launch its S2 tablet later this year as well. That device will come with two 5.5-inch displays that can be used in conjunction or separately, bringing a unique experience to the tablet market. Moreover, the device will feature a clamshell design, allowing users to fold one display over the other for simple mobility. On paper, the S2 sounds like a compelling alternative to the iPad 2.

Apple iPhone 4

Although there are undoubtedly many folks who have both a smartphone and a tablet, there are others who have instead decided to get one or the other. For those people, choosing an iPhone 4 rather than an iPad 2 might not be such a bad idea. After all, Apple's smartphone boasts the same operating system as the iPad and features the same touch-screen functionality. Even better, it combines that with the ability to place calls. If a consumer wants a single mobile device, choosing the iPhone 4 is a fine idea.

HP Pavilion dm3t Laptop

If users want to be more productive while on the go, HP's Pavilion dm3t notebook could help them achieve that goal. The device comes with a 13.3-inch display and runs Windows 7. It has a 1.2GHz Intel processor and 320GB of storage. The best part is the device, which will offer far more functionality than the iPad 2, has a starting price of $499.99, the same price as the entry-level iPad 2 with only 16GB of storage.

Toshiba Thrive

The Toshiba Thrive could be one of the more compelling of the upcoming alternatives to the iPad 2. The device, which is scheduled to launch in July, comes with a 10.1-inch display and will run Android 3.1. It has both a front- and rear-facing camera and offers the ability to connect USB devices to it that can be managed with a built-in file manager. Although it's WiFi-only at launch, its starting price of $429.99 for 8GB and $479.99 for 16GB of storage makes it a cheaper option than Apple's iPad 2.
                     

Samsung Series 5 Chromebook

Samsung's Series 5 Chromebook won't necessarily appeal to every customer out there. A solid argument can be made that the iPad 2 is a better device. But if certain folks don't want to join the iOS craze and would prefer to try something new, going with the Samsung Series 5 Chromebook is just fine. The device is small, easily mobile and, as long as a Web connection is always available, some buyers could find it the best way yet to capitalize on the cloud.
                       
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Wednesday, June 22, 2011

Best Cell Phone from Sony Ericsson

Sony Ericsson eyes Android market with new phones

Sony Ericsson eyes Android market with new phones (AP)
A staff member of Sony Ericsson submerges the newly-launched Xperia Active phone into a bowl of water as it receives an incoming call to show off its underwater capability on Wednesday, June 22, 2011 in Singapore. Mobile phone maker Sony Ericsson has unveiled two new Android models in a bid to grab more of the burgeoning smartphone market. Chief Marketing Officer Matthew Lang announced Wednesday in Singapore that the company plans to launch the Xperia ray and Xperia active models during the third quarter.(AP Photo/Wong Maye-E)
(AP) -- Mobile phone maker Sony Ericsson unveiled two new Android models Wednesday in a bid to grab more of the burgeoning smartphone market.The company, a joint venture between L.M. Ericsson and Sony Corp., plans to launch the Xperia ray and Xperia active models during the third quarter, Chief Marketing Officer Steve Walker announced in Singapore.
The new models should help the company expand its 11 percent market share of the Android segment, Walker said.
"Android smartphones is a rapidly growing part of the market, and we see our share within that market growing," Walker told The Associated Press.
London-based Sony Ericsson, which saw its phone unit sales drop 23 percent in the first quarter from a year earlier, is moving away from cheaper phone models and seeking to take on Apple Inc.'s iPhone, Research in Motion's Blackberry and Nokia Corp.'s N9 in the higher-priced smartphone market.
By 2015, about 60 percent of mobile phones sold in the Asia-Pacific region will likely be smartphones, up from 20 percent in 2010, Walker said.
"We made quite a fundamental shift in strategy and decided to focus a large part of our efforts into smartphones, to focus on the mid- and high-end part of the business," Walker said. "In many markets, we see a dramatic shift from feature phones to smartphones."
The company said in April that smartphones accounted for more than 60 percent of its sales during the first quarter.
Sony Ericsson's latest models that run on Goggle Inc.'s Android platform, the Xperia ray and active, will likely be priced below the high-end Xperia arc, Walker said.
Xperia active is water resistant and works if fingers are wet or sweaty, while the Xperia ray seeks to combine a sleek design with a device that is 9.4 millimeters thick (about 1/3 inch-thick).
Sony Ericsson also plans to introduce a less expensive model that highlights texting service and is aimed at teenagers, Walker said.

Tuesday, June 21, 2011

New Nokia Phone N9 with Microsoft OS Launch

Nokia to launch Microsoft platform phones in 2011
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Nokia to launch Microsoft platform phones in 2011 (AP)
Nokia's Chief Executive Stephen Elop speaks with a projected image of the new Nokia N9 phone in the background during a press briefing on the sidelines of CommunicAsia 2011, an international communications and information technology exhibition and conference held on Tuesday, June 21, 2011 in Singapore. Finnish handset maker Nokia Corp. plans to introduce this year its first mobile phone using the Microsoft Windows platform and Elop said in the speech that Nokia will start to deliver the models in bulk during 2012. (AP Photo/Wong Maye-E)
Finnish handset maker Nokia Corp. plans to introduce its first mobile phones using the Microsoft Windows operating system this year, the company's chief executive said Tuesday.
Nokia is facing steep competition from competitors in several products. At the top end of the market it is struggling against smartphones such as Apple's iPhone, Research in Motion's Blackberry as well as Android, and on the lower end against emerging market phone makers who are dropping their prices.
Nokia will start to deliver the Windows-based mobile phones in bulk next year, CEO Stephen Elop said in a speech at a technology trade show in Singapore.
"Our primary smartphone strategy is to focus on the Windows phone," Elop said. "I have increased confidence that we will launch our first device based on the Windows platform later this year and we will ship our product in volume in 2012."
Elop has acknowledged Nokia has been too slow to meet the challenge from competitors and has hinted that the company would drop its cellphone prices. Last month, the company warned both sales and profit margins in the second quarter would be substantially below previous forecasts.
Nokia also unveiled Tuesday its N9 smartphone, which is based on the MeeGo platform. The company said it plans to launch up to 10 new Symbian-based smartphones over the next 12 months.
Elop said the N9 would go on sale later this year, but declined to specify the date or price.
Nokia developed MeeGo last year in a partnership with U.S. chipmaker Intel Corp. In February, Nokia turned to Microsoft's Windows Phone software as its main smartphone operating system.

New Nokia Phone N9 with 8MP Camrea and Full Screen

Nokia unveils N9 ‘all-screen’ phone

New N9 phone, the long-awaited successor to Nokia’s N8, is finally unveiled in Singapore – but no sign of new Windows Phone handsets yet .


Troubled smartphone giant Nokia has unveiled a range of new handsets including the company’s new flagship device, the N9. Featuring an ‘all-screen’ design, the phone replaces a home button with a universal ‘swipe’ gesture that takes users back to the devices main screen from wherever they are in its operating system.
Marko Ahtisaari, Nokia's head of Design, said, “The details that make the Nokia N9 unique - the industrial design, the all-screen user experience, and the expressive Qt framework for developers - will evolve in future Nokia products."
The company, has not yet, however, demonstrated any of the long-awaited Windows Phone handsets that it says it will release by the end of the year. Nokia chief executive Stephen Elop said “Earlier this year, we outlined a comprehensive strategy to change our course. Innovation is at the heart of our strategy, and today we took important steps to demonstrate a new pace of innovation at Nokia. It's the beginning of a new era for Nokia."
Earlier this month Nokia announced significantly reduced profits and operating margins, which sent its share prices further down.
The company also released affordable models called the C2-02, C2-03 and C2-06 using Symbian Series 40. They included dual and single-sim options, which are popular in emerging markets where Nokia is still hugely popular, and both touch screen and keypad options. They are also the first Nokia handset to feature mapping with Symbian Series 40, which the company hopes will also appeal to customers in the developing world.
The N9 also features an 8mp camera, near-field communication technology and up to 64gb of storage as well as Nokia’s standard turn-by-turn navigation software. It said the recently announced ‘Anna’ - Nokia launches new Symbian Anna OS and X7 and E6 smartphones - update will be available next month. No prices for the N9 have yet been announced.

Monday, June 20, 2011

T-Shirt for Mobile Charging ( Festival-goers)

Charge your phone at Glastonbury using a T-shirt

Glastonbury Festival-goers should be able to charge their mobile phones using nothing more than a T-shirt, although may have to risk permanent hearing damage to do so.

The energy gathered from sound waves is stored in a reservoir battery, which can then be plugged into a mobile phone to charge it. The Orange engineers said they chose a T-shirt because it is an everyday item that people will have on them, and because it has a large surface area which can receive a lot of sound waves.
Unfortunately, despite this, the amount of energy gained is not huge. According to Orange, "over the course of the weekend" the shirt could store as much as six watt hours - which, as the technology website The Register points out, "should be enough to recharge a smartphone, once, if you're lucky". And standing next to a speaker for hours at a time to charge your phone is unlikely to be good for your aural health. But it may allow for a few extra hours' battery life if used wisely.
For last year's festival, Orange produced wellington boots with chargers in the heel, which gained energy from walking movement; the year before they made small, portable windmills for generating electrical power. They have hinted that all three items may become saleable products.

New Base station of Samsung is Japan

Samsung to build mobile base stations for Japan

South Korean men walk past a Samsung logo in Seoul
South Korean men walk past a Samsung logo in Seoul in 2010. South Korea's Samsung Electronics said it has been chosen to provide next-generation communications equipment to KDDI, Japan's number two mobile phone operator.
South Korea's Samsung Electronics said Monday it has been chosen to provide next-generation communications equipment to KDDI, Japan's number two mobile phone KDDI is scheduled to start a commercial service using long-term evolution (LTE) technology next year, Samsung said in a statement without disclosing the value of the deal.
Global mobile operators are preparing to launch new technologies allowing faster wireless data transmission to cater to increasingly popular smartphones and tablets.
Samsung, the world's second largest mobile phone maker, already provides LTE equipment to wireless carriers in the US and the Middle East.
It said it is working to offer commercial LTE services to eight mobile operators around the world.
In Tokyo, KDDI said the Korean firm would provide small base stations, especially in cities. It earlier selected NEC Corp and Motorola Mobility Holdings to build the large stations for its LTE network.
Samsung said it aims to introduce the best technology "for hotspots in extremely dense user areas that require higher capacity mobile broadband, whilst simultaneously improving service quality in weak-signal areas".
(c) 2011 AFP

New Cellphone Charger work without Electric

Japan gadget charges cellphone over campfire

TES NewEnergy unveils a pot that can charge mobile phones while boiling water for use in other emergency situations
A member of Japanese electronics venture TES NewEnergy unveils a pot that can charge mobile phones while boiling water for use in earthquake and other emergency situations, at a demonstration in Tsukuba City in Ibaraki prefecture on June 9. The Hatsuden-Nabe thermo-electric cookpot turns heat from boiling water into electricity that feeds via a USB port into digital devices such as smartphones.
A Japanese company has come up with a new way to charge your mobile phone after a natural disaster or in the great outdoors -- by heating a pot of water over a The Hatsuden-Nabe thermo-electric cookpot turns heat from boiling water into electricity that feeds via a USB port into digital devices such as smartphones, music players and global positioning systems.
TES NewEnergy, based in the western city of Osaka, started selling the gadget in Japan this month for 24,150 yen ($299), and plans to market it later in developing countries with patchy power grids.
Chief executive Kazuhiro Fujita said the invention was inspired by Japan's March 11 earthquake and tsunami that left 23,000 people dead or missing, devastated the northeast region and left hundreds of thousands homeless.
"When I saw the TV footage of the quake victims making a fire to keep themselves warm, I came up with the idea of helping them to charge their mobile phones at the same time," Fujita said.
The pot features strips of ceramic thermoelectric material that generate electricity through temperature differentials between the 550 degrees Celsius at the bottom of the pot and the water boiling inside at 100 degrees.
The company says the device takes three to five hours to charge an iPhone and can heat up your lunch at the same time.
"Unlike a solar power generator, our pot can be used regardless of time of day and weather while its small size allows people to easily carry it in a bag in case of evacuation," said director and co-developer Ryoji Funahashi.
TES NewEnergy was set up in 2010 to promote products based on technology developed at the National Institute of Advanced Industrial Science and Technology, Japan's largest public research organisation.
It also makes and markets equipment to transform residual heat from industrial waste furnaces into electricity.
The company says the pot will be used mainly in emergency situations and for outdoor activities, but also has uses in developing countries.
"There are many places around the world that lack the electric power supply for charging mobile phones," Fujita said.
"In some African countries, for example, it's a bother for people to walk to places where they can charge mobile phones. We would like to offer our invention to those people."
(c) 2011 AFP