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Showing posts with label wireless. Show all posts
Showing posts with label wireless. Show all posts

Thursday, October 14, 2010

Verizon will to sell Apple's iPad : Apple's iPad success is causing PC market pain

Apple (AAPL: stock) and Verizon (VZ: stock) is the leading company ever for developing new tech gadgets and basically for iPhone, iPad, iPad. But How will it if two warming company will sell it's product with different company's product? 

Yes, This is happening in Tech market. Verizon is going to sell the product of Apple Inc.'s iPad at the end of this month. It's like not to believe but It is true that is said by Company itself on Thursday.

The news follows published reports that Verizon Wireless will start selling a version of the iPhone early next year. The companies have not confirmed the reports, and Verizon Wireless has downplayed the possibility of an iPhone for its current network.

If you know AT&T Inc. is Apple's exclusive U.S. carrier for the iPhone. And on other hand it's also the only U.S. carrier that's compatible with the "3G" version of the iPad, That is allowing  for cellular data access.

there are two types of Apple's iPad. First one is 3G and second one is non 3G. Hence Verizon Wireless is not going to 3G version of iPad. nstead, it will sell the Wi-Fi version, with the option of bundling it with a "MiFi" gadget for about $130.

[Now your Question is what is Mi-Fi?



MiFi is a line of compact wireless routers produced by Novatel Wireless that act as mobile Wi-Fi hotspots. By backconnecting to a cellulardata network and frontconnecting to local Wi-Fi devices (up to 10m/30 ft distance), a compact wireless router creates a local area of shared high-speed Internet connectivity. The first MiFi device was introduced in the U.S. in May 2009 by Novatel Wireless, and Novatel owns a registered trademark on the "MiFi" brand name in the U.S.]

The iPad is also sold by several retail chains, including Best Buy Inc. AT&T said separately Thursday that will also begin selling the iPad in its stores on Oct. 28. So, you will be able to buy this iPad of Wi-Fi or Mi-Fi version of iPad on Verizon store. The carrier's data plans for the iPad start at $15 per month.

Don't you think this is the innovative idea to profit business? We can say this as smart deal. that is necessary by to run your business with full of profit. I hope you will also apply this thing on your business or suggest your company to do like this deal, making great profit ! 

See this video by MSNBC: 

Sunday, September 12, 2010

GAMMA RAY 'RACE' PROVES EINSTEIN RIGHT AGAIN !!!

Timing is everything, especially to physicists seeking to unite the mechanics of gravity with the quantum world of particles.

So when the opportunity came to measure if gamma rays of different energies traveled at the same speed, a team of physicists stepped up to the challenge.

At stake was nothing less than a foundation of modern physics -- Einstein's theory of relativity, which posits that all electromagnetic radiation travels at the same speed, whether low-energy radio waves, high-energy X-rays or gamma rays, or any wavelength in between.

A violent explosion 7.8 billion light-years away gave scientists the unique opportunity to punch a hole in Einstein's theory. NASA's Fermi Gamma Ray Telescope detected many gamma ray photons from the 2.1-second long burst, including one that was a million times more energetic than another.

Scientists wondered if the higher-energy photon might have arrived in the telescope's detector slightly later than its partner due to quantum-level entanglements in space that a less energetic photon wouldn't even notice.

"Some quantum gravity theories predict that the higher energy photons are more affected by the quantum nature of space-time and will travel more slowly than lower energy photons," said Stanford University's Peter Michelson, the lead scientist on the Fermi Large Area Telescope.

Michelson says it's kind of like the difference between a car and an ant traveling down a dirt road: The car isn't impacted by the pebbles and the rocks, whereas an ant has to go around every obstacle in its path.

After a journey of more than 7 billion light-years, however, the gamma ray photons arrived nine-tenths of a second apart on May 9, 2009 -- not enough of a lag to account for the theorized quantum effects.

"Einstein, at this point, wins again," Michelson said.

That's not to say that a theory of quantum gravity doesn't exist.

"It's a theory that would unify all the forces of nature," said Mario Livio, an astrophysicist with the Space Telescope Science Institute in Baltimore, Md.

"What Fermi has done here is push us to our limit," he added. "This only tells us where are the dead ends. It doesn't necessarily tell us where the correct way is."



The research was presented during a three-day symposium in Washington D.C. to highlight results of the telescope's first year of operations.(credit: discovery channel)

Tuesday, September 7, 2010

Can you fold your mobile? : New Triple fold screen mobile phone

New Triple fold screen mobile phone




Big screen is always in demand in the mobile phone. Because big screen give you an option to see photos and videos clearly. Now this mobile phone is coming with the folded screens. You can unfold these screen three times and as a result you can see wide and attractive screens.






Thursday, August 26, 2010

10 new technologies that will revolutionise your life !

Staying up to date with everything that's going on in PCs and tech is almost impossible, so these are the ten technologies that you should be most aware of, as they're the ones that'll make the biggest difference to your life.
1. 3D gaming
The fact that to get any kind of 3D image from a 2D screen means wearing a pair of sunglasses or worse means that three dimensional gaming isn't quite as convincing as multitouch and natural user interfaces, even though the two have been commoditised at almost the same time.
An Acer Aspire 5738 laptop with a 3D display costs about £550 at the moment, not bad for something with cutting edge technology that adds depth to any DirectX 9 game. The screen is of the polarised filter type, which is the new norm for extra dimensions.


Instead of using coloured filters splitting an image into two – one for each eye – the vertical pixel columns are alternated between left image and right image and shone through a piece of polarised glass. A pair of dark glasses with oppositely polarised lenses ensures that only one image is seen by each eye. The difference to a game is tangible too, something like WoW runs and looks incredible on the low-end graphics hardware.
It's over in TV land that the real push for 3D is happening, though, as LCD suppliers ask us to upgrade again to watch hyper-real cinema in the lounge. Compared to the other technologies we've talked about here, though, 3D requires a lot of effort on behalf of the watcher (those pesky glasses) and most of us are very lazy; hence the ubiquity of MP3 and standard definition movies, while Blu-ray and higher resolution sound standards continue to flounder. We value ease of use over quality every time.

In its favour, 3D doesn't actually require any work on behalf of games developers or publishers, as the stereoscopic image is created at the driver level. On the other hand, that means there's no massive push by the people who make and sell games to encourage us to adopt it.
2. Streaming games
The advancements in superfast broadband hasn't just helped the cause of downloadable games. It will also have no some small impact on the future of streaming games over broadband, or at least that's the theory.
There are several companies pursuing and a significant amount of money invested in the idea that one day, your precious PC will be almost entirely redundant as a games machine.
The concept is simple: all the game's data is hosted on a central server and all you will have to do is receive the display and send back input commands. It's a little like the technology used for MMORPGs, except that the rendering engine isn't on your PC, it's actually in the same server farm as the core intelligence.
This idea was actually mooted some years ago with the Phantom console, which never made it to the stores. It's looking unlikely that OnLive (www. onlive.com), Gaikai and Microsoft's own streaming project will end up as vapourware though, despite the obvious concerns about input lag: the delay that occurs every time you press a key. The signal has to travel hundreds of miles before a character even moves.
Proponents say that even twitch gaming FPS games are possible but we're a little more sceptical. There's another reason that at least one of these services will be properly launched soon, and that's vested interest by games publishers.
Because no content is stored on your machine, of course, it's impossible to pirate a streamed game, which is obviously an attractive proposition for them. In the immediate future, though, it is more likely to be a technology that runs like games such as Quake Live, which use a combination of some local processing power and some server-based cycles. That's certainly the route Microsoft is taking, and seems more achievable than relying on 'the cloud' at this stage.
3. Six-core processors
You won't have to wait long for this one. Intel's Westmere CPUs may be hanging around with the dregs of processor society at the moment, chucking their chips in with the integrated graphics crowd, but they're about to grow up – and fast.
Sometime over the next few months Intel will go two better than the current line up of quad-core CPUs by launching a six-core version of its high-end Core i7 line. Based on the existing Nehalem architecture, the headline feature is a process shrink down to 32nm, while the rest of the spec sheet remains largely the same. It could be a genuine upgrade.

Games programmers are getting much better at working with multithreaded code so that most major titles, like Empire: Total War and its forthcoming sequel Napoleon, will see a much bigger performance increase when given extra cores to play around in than the often sporadic leaps in frame rate we saw going from two to four cores.
Because the benefits will be in the amount of cores, rather than the speed of things you can do at once, Intel are encouraging some developers to add extra content specifically for people with a six-core CPU. Given the plethora of disappointments we've had lately with almost every technology that's promised to increase our frame rates, we'll reserve judgement until we have one in the office.
The good news is that these hexa-powered processors will fit into most existing X58 motherboards after a simple BIOS flash. The bad news is X58 motherboards are still very expensive too.
4. Wireless power
A few years ago we saw a demonstration by a team at Fulton Innovation of a product called eCoupled. Using the principle of electromagnetic induction, by which an electrical charge can be stimulated in a wire coil by placing another one nearby, the crazy boffins were able to display wireless power transfer.
Despite being high voltage, they said, it was safe, efficient and could be applied to any surface. The demo room consisted of a kitchen without plugs, but full of lights that could be stuck anywhere and a frying pan that heated up just by sitting it on the counter. Put a phone on the same counter and it began charging. Clearly, this was the future.


Fulton are still working on wireless power, but it's a different company that's beat it to the shops, Powermat – and its products are expensive for something that replaces a 50p mains plug.
The good news is that the Wireless Power Consortium are going to be finalising a standard for wireless power called Qi later this year, which should mean prices drop and manufacturers have the confidence to build the technology straight into devices, rather than requiring an adaptor.
If you think that's crazy, though, take a look at Airnergy by RCA. It's a tiny dongle that can turn Wi-Fi signals back into electricity for charging phone batteries and the like.
5. Wireless displays
The last two standards for monitors, HDMI and DisplayPort, didn't exactly have us all rushing out to upgrade our PC screens and graphics cards, so it's a safe bet that DVI will remain the cabled interface of choice for some time to come. What about connecting a monitor to your PC without wires though?
That's something that could be worth shelling out for. Two different technologies were on the show floor at CES, which should be available en masse this year.
The first, WirelessHD is being pushed by the usual line-up of TV and DVD player manufacturers as a replacement for HDMI. It uses a short range, high bandwidth in the Ultra-Wide Band (UWB) spectrum to transmit HD video and audio from a set-top box or media centre to a TV screen.
The idea is nothing new, Philips have had a kit out for a while that does the same thing, but WirelessHD is a proper standard and should ensure maker A's TV works nicely with maker B's Blu-ray machine and so on.
Perhaps more relevant for us, though, is Intel's new Wireless Display, or WiDi. It's designed specifically for laptops in order to remove the hassle of cables when you want to dock them with a proper screen, and like WirelessHD sends the video signal to a receiver box.
Unlike WirelessHD, WiDi can't handle protected content and the like, but it is much simpler since it requires no new hardware inside the laptop. Instead of using a separate transmitter, WiDi is a software layer on top of the existing Wi-Fi chip, so it's much cheaper to produce. Providing there's no latency introduced to the picture refresh rate, this could be a killer.


6. OLED displays
Yeah, we hear you. Another year, another promise that OLED screens are going to take over. Haven't we heard it all before? Except this time it could be true.
Google's Nexus phone has just launched with an OLED screen, and by all accounts it makes the handset almost – say it in hushed tones – more desirable than the iPhone. Brighter colours, sharper resolutions, darker blacks, whiter whites; why is this OLED technology so superior?
Put simply, it's because instead of filtering the light from a white or blue lamp behind the screen, each pixel in an OLED panel produces its own light. You don't have to be an optometrist to see why this is better, but it is much more expensive to produce.
Still, it also means OLED screens are much thinner than backlit ones, for obvious reasons, and while you may not be using an OLED PC monitor by the end of the year there are a lot more laptops with the technology arriving.
7. Superfast broadband
There are two things about broadband you should be concerned about. The first is whether or not the Digital Britain report, with its three strikes policy, outrageous invasion of privacy and extra charging for bandwidth, makes it into law before the general election final hits.
The second is what's going on at your exchange. By early next year, 75 per cent of us should be living in proximity to a telephone exchange that has a fibre optic connection to the internet. It's all part of BT's 21CN project to replace the entire copper telephone and broadband internet infrastructure with a single ethernet-based network fit for the 21st century.

So far, it's been dogged by delays and problems, but it's finally picking up the pace and is being tested by ISPs all over the country. The idea is that it will increase competition for high-speed broadband and bring down access prices, as well as bring services like IPTV – of the sort Virgin customers enjoy – to everyone.

It doesn't just mean better access to large downloadable game files and lower ping times, however. Our biggest hope is that it will eventually encourage telephone companies to do away with the irritating £12 a month line rental charge for a phone we don't actually use.
8. Augmented reality
Actually, we're kidding ourselves with this one. Augmented reality: the ability to overlay information on a live video feed of the world, is very cool, and it's impossible not to love iPhone apps like Yelp that pull in details and distances to the nearest pub or restaurants as you point the camera in their general direction.
Holding your phone three inches in front of your face as you're walking around feels a little too ridiculous to catch on, though. Perhaps it's like handsfree and Bluetooth headsets. Not so long ago people still sniggered if they saw someone using a phone without holding it to their ear, and not so long before that mobile phones themselves were devices for sales dorks.
Augmented reality
In a couple of years time, it may seem the most natural thing in the world to see someone walking around with a phone held at arms length, directing them to food or drink with their own personal dynamic GPS system, or pulling up interesting information about the buildings and people in front of them. Yes, that's right, people.
Twitter 360 is an iPhone app that directs you to geotagged tweeters on your friends list, while TAT (www.tat.se) is working on an Augmented ID program, so if people point a camera at you various bits of information from your social feeds floating around your head. Makes stalking a lot easier then. Scary.
9. Natural user interface
In his CES keynote presentation, Steve Ballmer made several references to the 'Natural User Interface' (NUI), which is a handy catch all to describe all the Wii wand-waving, multitouch point and Project Natal-style aerobics that are catching headlines out there.
The keyboard and mouse is by no means dead, but the sudden flood of cheap laptops and all-in-ones with a built-in, multitouch screen suggests that it won't be long before we'll all have something a little bit different on our desktops.
Over in the US, for example, custom laptop maker IBuyPower has already started selling high-end gaming notebooks with a multitouch screen, and French developer, Eugen Systems has incorporated Win7's multitouch controls into the heart of its forthcoming strategy title R.U.S.E. It's all very exciting, except for one thing.
Multitouch may be native to Win7 and no other operating system, but the implementation is nowhere near as smooth as it is on, say, the iPhone. PCFormat has yet to use a multitouch application on a PC that doesn't suffer from a bit of inaccuracy or sluggishness, and the key to the NUI is in the first word. It has to feel natural, unforced and invisible to the end user. That's what using multitouch on an iPhone is like, and that's what Windows must achieve. If the mouse remains faster and more trusted, that's what people will use.
There are some brilliant ideas out there, though. Project Natal, Microsoft's full body 3D gesture recognition system for Xbox 360, is by far the most ambitious prototype, and we can't wait for a PC hack.
At CES the prototype Light Touch projector, from Light Blue Optics (lightblueoptics.com), was a show stealer. Using a technique called holographic laser projection, this tiny projector turns any 10inch surface – flat or curved - into a sharp multitouch screen.
10. Long-term evolution
The idea of getting high speed, super-reliable mobile broadband from a cell tower to your laptop or phone via WiMAX is not quite dead in the water, but it's certainly in need of a bit of mouth to mouth.
Far from being the 'Next Big Thing' as it was touted a few years back, it's had a painful and traumatic incubation period, which has seen some US carriers begin to adopt it and, in fact, quite a few businesses use it for point to point communications, but public access has dwindled from trial areas to almost nothing.
Partly, this may be because the company which owns the licence to operate WiMAX licences in several cities, Freedom4, was recently bought out and the new owners aren't in any rush to monetise the technology. More likely, it's because the mobile phone companies are happy with the current HSPDA speeds and are betting on an alternative technology, which is known as 4G, or Long Term Evolution (LTE) to supply almost the same amount of bandwidth without completely reworking their networks for WiMAX.
Lucky Scandinavians living in Stockholm or Oslo with a TeliaSonera contract can already sign up for LTE, while O2 is planning on launching a 150Mbps LTE package in the UK some time this year. We don't expect WiMAX to give up without a serious fight, though.
In the US, mobile networks are beginning to fall over because of the volume of 3G traffic running over them, and WiMAX's new architecture could well be a way to increase capacity to cope with demand. In which case, expect to see it begin sprouting up everywhere.
Faster bits and bytes
Rather more prosaic than the technologies listed elsewhere in this article the internals of your PC are also being overhauled by the powers that be. There's a revision to the SATA standard out for disk drives, and USB 3.0 is appearing on motherboards to speed up the default peripheral connection.
They are big steps forward. SATA III doubles the bandwidth available to storage from a theoretical 3Gbps to 6Gbps, while on paper USB 3.0 is a ten-fold increase from 480Mbps to 4.8Gbps for cabled peripherals.
motherboardsMotherboards sporting ports of both flavours are already available from most manufacturers. Although both technologies are much faster than their predecessors, neither is likely to have a huge impact on consumer PCs.
In the world of business where milliseconds are money, the upgrades may mean something, but for the likes of us, compatible drives and peripherals will be a while coming yet.


THE LATEST NEW FIBER OPTIC TECHNOLOGIES !!

Baseband video consists of one video picture being sent point-to-point, such as the video output of a VCR to the video input of a monitor. Figure 1 illustrates simple point-to-point transmission. There exist two levels of service for baseband video: broadcast studio and consumer. These types describe, primarily, the quality of the signal. Broadcast studio quality requires a much higher signal fidelity, while consumer quality baseband requires is less demanding. In addition to the difference in signal fidelity, there is also a difference in the connectors typically used for the transmission of these signals. The broadcast baseband applications typically use a BNC connector and the consumer baseband applications typically uses an RCA connector.
 
 Baseband Video Signals
The most basic form of a television signal is a baseband video signal, also referred to as a composite video signal. In an AM baseband system, the input signal directly modulates the strength of the transmitter output, in this case light. The baseband signal contains information relative to creating the television picture only. The following information is carried on a baseband signal:

• Scanning: drawing the television picture
• Luminance: the brightness of the picture
• Chrominance: the color of the picture

The creation of the baseband signal produces a range of frequency components. The highest frequency in a baseband signal is also its bandwidth. The lowest frequency ranges close to zero Hz or DC. The video output of a television camera or video tape recorder has its highest frequency, therefore, its bandwidth, at either 4.2 or 6 MHz, depending on the type of TV format used. Looking at an actual baseband signal, illustrated in Figure 3, we can see that the camera and the video display are scanned horizontally and vertically. The horizontal lines on the screen are scanned alternately, with the odd numbered lines first and the even numbered lines second, or vice versa. (Figure 3B depicts the initial scan of the odd numbered lines.) This method is known as an interlacing system. The second method is to scan the lines sequentially; this is known as progressive Scanning. The camera and receiver must be synchronized when scanning and reproducing an image. The horizontal and vertical sync pulses regulate the synchronization of the camera and receiver, illustrated in both 3B and 3C, and starts a horizontal trace. As seen in Figure 3A, during the horizontal blanking interval, the beam returns to the left side of the screen and waits for the horizontal sync pulse before tracing another line. The dotted line illustrated the horizontal retrace. When the beam reaches the bottom of the screen, it must return to the top to begin the next field. This is called the vertical retrace, which is signaled by the vertical sync pulse illustrated in Figure 3C. The vertical retrace takes much longer than the horizontal retrace, therefore, a vertical blanking interval ensues to synchronize the two signals. During both the horizontal or vertical blanking intervals no information appears on the screen. (from http://fiber-optic-tech.blogspot.com)

Japan's latest supermodel--a robot



The new Japanese humanoid robot HRP-4C displays a range of emotions (good luck discerning what they are) during a press conference in suburban Tokyo this week. Naturally, plenty of paparazzi were on hand.
(Credit: AFP Photo/Yoshikazu Tsuno)
She doesn't have the grace of a Cindy Crawford or Elle MacPherson (yet), but a few struts on the catwalk may help HRP-4C loosen up and hit her stride. The walking, talking girlbot will be getting practice soon, as she's set to make her catwalk debut at a Tokyo fashion show next week.
Scientists from Japan's National Institute of Advanced Industrial Science and Technology reportedly designed the 5-foot (ish), dark-haired creation to look like an average Japanese woman between the ages of 19 and 29. Unlike the average Japanese woman, however, HRP-4C has 30 motors in her body that allow her to walk and move its arms (somewhat loudly and awkwardly, if the video below is any indication) and 8 facial motors for blinking, smiling, and expressing emotions akin to anger and surprise.
According to the Associated Press, the robotic framework for the HRP-4C, sans face and other coverings, will sell for about $200,000, and the technology behind it will eventually be made public so people can come up their own moves for the bot.
The government-backed AIST says she's mostly being developed for the entertainment industry--for use in amusement parks, for example, or as an exercise teacher--and is not yet ready to help with daily chores. So unfortunately for those eager to hire HRP-4C as a home or office assistant, for now at least, her main job is to look pretty--or odd, depending on your perspective.

Tuesday, August 24, 2010

How WiFi Works ?

If you've been in an airport, coffee shop, library or hotel recently, chances are you've been right in the middle of a wireless network. Many people also use wireless networking, also called WiFi or 802.11 networking, to connect their computers at home, and some cities are trying to use the technology to provide free or low-cost Internet access to residents. In the near future, wireless networking may become so widespread that you can access the Internet just about anywhere at any time, without using wires.
 

                               WiFi has a lot of advantages. Wireless networks are easy to set up and inexpensive. They're also unobtrusive -- unless you're on the lookout for a place to use your laptop, you may not even notice when you're in a hotspot. In this article, we'll look at the technology that allows information to travel over the air. We'll also review what it takes to create a wireless network in your home.

A wireless network uses radio waves, just like cell phones, televisions and radios do. In fact, communication across a wireless network is a lot like two-way radio communication. Here's what happens:
  1. A computer's wireless adapter translates data into a radio signal and transmits it using an antenna.
  2. A wireless router receives the signal and decodes it. The router sends the information to the Internet using a physical, wired Ethernetconnection.
The process also works in reverse, with the router receiving information from the Internet, translating it into a radio signal and sending it to the computer's wireless adapter.
The radios used for WiFi communication are very similar to the radios used for walkie-talkies, cell phones and other devices. They can transmit and receive radio waves, and they can convert 1s and 0s into radio waves and convert the radio waves back into 1s and 0s. But WiFi radios have a few notable differences from other radios:






  • They transmit at frequencies of 2.4 GHz or 5 GHz. This frequency is considerably higher than the frequencies used for cell phones, walkie-talkies and televisions. The higher frequency allows the signal to carry more data.
  • They use 802.11 networking standards, which come in several flavors:
    • 802.11a transmits at 5 GHz and can move up to 54 megabits of data per second. It also uses orthogonal frequency-division multiplexing(OFDM), a more efficient coding technique that splits that radio signal into several sub-signals before they reach a receiver. This greatly reduces interference.
    • 802.11b is the slowest and least expensive standard. For a while, its cost made it popular, but now it's becoming less common as faster standards become less expensive. 802.11b transmits in the 2.4 GHz frequency band of the radio spectrum. It can handle up to 11 megabits of data per second, and it uses complementary code keying (CCK) modulation to improve speeds.
    • 802.11g transmits at 2.4 GHz like 802.11b, but it's a lot faster -- it can handle up to 54 megabits of data per second. 802.11g is faster because it uses the same OFDM coding as 802.11a.
    • 802.11n is the newest standard that is widely available. This standard significantly improves speed and range. For instance, although 802.11g theoretically moves 54 megabits of data per second, it only achieves real-world speeds of about 24 megabits of data per second because of network congestion. 802.11n, however, reportedly can achieve speeds as high as 140 megabits per second. The standard is currently in draft form -- the Institute of Electrical and Electronics Engineers (IEEE) plans to formally ratify 802.11n by the end of 2009.(by howstuffworks)

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