Samsung Galaxy S3 & wireless charging: How it works

While announcing Galaxy S3 at an event in London, Samsung said the device would support wireless charging when used with a special charger that would be sold separately.

This brings up a question: How does wireless charging work? Among the engineers and scientists, wireless charging is known as 'inductive charging'. It utilizes two smart coils - one in the charger and another in the device that is getting charged. The primary coil creates a very small electromagnetic field around the charger through which electricity can be transferred. The secondary coil, which is in the phone, receives the power from electromagnetic field and converts in back into electric current to feed it into the battery.

The technology is still in the early stages and it works best when the distance between the two coils is few millimeters. That's the reason why users have to place the device on the charger.

The main benefit of wireless charging is that it removes one more wire. This not only makes it easier to charge the phone but also has aesthetic appeal. At the same time, wireless charging has poor efficiency. This means it takes longer to charge the battery through wireless charger.

Galaxy S3 is not the first phone to use wireless charging. Three years ago Palm commercialized the technology and sold a charger called Touchstone that allowed phones like Pre and Pixi to be charged wirelessly. Powermat is another company that sells special chargers, which can be used with iPhone and other devices for wireless charging.

After introducing the technology in 2009, Palm supported it in almost all of its devices. Even Touchpad, which was introduced in the market last year after Palm had been acquired by HP, had this feature. Of course, Palm is dead now.

There is a chance that Samsung is doing things differently. But that is not apparent. The company says that to charge Galaxy S3 wirelessly, users will have to keep the device on the 'special charger'. This is exactly how Touchstone worked.

Nokia 808 PureView Price in India - A Smartphone Par Excellence

The Nokia 808 PureView is a much in news phone and it packs fun to use features. The Nokia 808 is built on the Nokia Belle Operating system. It has a 1.3 GHz processor and dedicated graphics processor with open GL 2.0 which enables 3D graphics.

The key features of the Nokia 808 PureView are as follows:
- 41 MP sensor for stills at around 5MP resolution
- Carl Zeiss optics with Xenon flash and LED
- Video recording goes as high as FullHD 1080p at 30 fps
- Video encoded in H264
- Support for stereo sound recording
- Image sensor allows 4x zoom in 1080p and 6x in 720p.
- Single-core 1.3 GHz processor
- 512 MB RAM
- Runs on Symbian Belle
- 16:9 4″ AMOLED display

The Nokia 808 PureView is certainly a handset to look forward to as it comes with the staggering 41MP image sensor. You can easily zoom in with the 3X without actually losing any detail. This is the world`s first video recording device that allows recording without distortion. That is not all; users may avail the Stereo CD like audio even in the noisiest of environments.

By: Amrith K. A.

source  http://www.mobileindiahub.com/

Review: Intex i-Tab

Pros:Bright display; 1080p video playback; Comes with 3G data card.

Cons:Terrible design; Uninspiring UI; Expensive.

 

 

 

 

 

 

 These days, it's hard to find a tech company that hasn't tried its luck with tablets. Although most companies, except Apple and Samsung, haven't met with significant success, it isn't stopping domestic brands from testing waters in the low-end segment. Intex's i-Tab is one such tablet that features Android 2.3, full HD video playback, and a 3G data card.


Design And Build Quality
The review package came with the tablet, charger, USB cable, earphones, leather case, and an Ethernet adapter. According to Intex, customers are also given a pair Reebok sunglasses as a gift. The gadget measures 8" (l) x 6.3" (w) x 0.5" (13 mm) (d), and weighs around 475 grammes. The tablet looks cheap from the every possible angle that you see it from. Intex has come up with an uninspiring design, and has sprinkled tackiness on every possible part of the device. The only saving grace here, is the sturdy build. Overall, this is not a device that you can show off, which in effect, defeats the purpose of buying a tablet.

The i-Tab's 8" touchscreen has pixel dimensions of 800x600. The screen is bright and colour reproduction is decent. Having said that, its awkward screen ratio of 4:3 and reflective screen are slightly annoying.

The tablet is powered by a 1 GHz CPU and has 512 MB of RAM. Other specs include Wi-Fi, 8 GB internal memory, a microSD card slot, front VGA camera, 3.5 mm jack, mini-USB port, full sized USB host, HDMI, and a 5000 mAh battery. Thanks to the bundled Ethernet adapter, you can access the wired internet. Additionally, the bundled 3G data card allows you stay connected, while on the move. However, similar to most entry-level tablets, this one lacks the main camera and Bluetooth.


UI And Performance
The gadget runs the Android 2.3 (Gingerbread) out of the box. The CPU handles the UI reasonably well, and the touchscreen is good at registering inputs. However, as found in most Android tablets, there's a slight lag while navigating through the menus. The software customisation is also not good, and a few menus, such as the multitasking bar looks out of place. Thanks to the gadget's front facing VGA camera and mic you can make video calls, using third party apps such as Fring and Skype. However, since most apps are developed for tablets with aspect ratio of 16:9, they look weird on this device.

The onboard browser supports Flash and can handle web videos reasonably well. Having said that, it struggles with script-heavy websites.


Multimedia
The device's sound quality through bundled earphones is decent. The speaker is loud enough, and there are plenty of equalizer settings to play around with.

The tablet can handle 1080p videos of all the popular formats, except for MKV. The HDMI port allows you to enjoy movies on a HDTVs.


Battery And Verdict
The 5000 mAh battery manages to keep the device running for about a day with normal use. Under heavy use, with all connectivity options turned on, it managed to play 720p videos for about 5 hours, which is impressive for an Android device.

The i-Tab offers good battery life, 1080p video playback, and HDMI port. On the flipside, it looks terrible and is bulkier than its rivals. For an asking price of Rs 12,000, the device doesn't make for a good deal, considering that there are better and cheaper ICS-based tablets available in the market.


Features: 4/5
Design And Build Quality: 1.5/5
Performance: 3.5/5
Value For Money: 2.5/5
Mojo: 3/5

Overall Rating: 3/5

source tech tree

HANDS ON SAMSUNG GALAXY S3 VIDEO

Samsung Galaxy S3 review

There’s a lot riding on the Samsung Galaxy S3 – it’s the successor to the 20million selling S2, it’s the Android phone best-placed to take on Apple’s iPhone, and it’s the device that Samsung hopes will cement its reputation as an innovator.

I had less than an hour with the S3, but that’s a lot longer than people were able to grab easily with the device when Samsung announced it at London’s Earl’s Court tonight.

The first impression I came away with was not that the screen was the best on the market, although it has a depth, responsiveness and sharpness that bests, to my mind the HTC One X, although I wasn’t able to compare the two directly. Nor that the huge 4.8” screen was too big, although it’s heading that way. The compelling thing about the S3 is the package it offers. Like the iPhone 4S after the 4, it offers iterative improvements over its predecessor, but the total effect is to create a radically innovative new device.

In among those things is a new sensor that tracks your eyes – so long as you’re looking at the S3’s screen, it won’t dim or lock itself. Yes, you could just set the screen timer to longer, but “Smart Stay” means you don’t have to. In use, the feature seemed to work very well, with a little icon indicating the phone is watching your eyes.

On a similar note, if you’re looking at a contact, or a message from a contact, the S3 automatically dials that person when you put the phone to your face. It’s one less button to press.

An improvement to voice control, called S-Voice, that lets users control their phone using normal, natural language. So it’s like Siri, only it does more – you can say volume up, for instance, and the phone will filter out the noise of the song it’s playing so it can hear you. The S, we assume, stands for Samsung.

Elsewhere, the phone adds useful features that, for instance, can automatically share a photograph you take with people whose faces are recognised, called ‘Buddy Photo Share, or display social media profiles directly on a photograph when those face are recognised. These are features that are useful rather than revolutionary, but they feel like they will be obvious standards in the near future. Tagging groups and offering an automatic slideshow zooming into the faces in a picture are also useful additions. Samsung, unless the patent wars cause further upset, is setting new standards.

When it comes to features such as S-Beam, which transfers files quickly between devices by touching them together, or sharing the phone’s screen content with other devices, these are increasingly becoming more widespread industry standards, as indicated on the new Motorola Razr, which offers similar concepts. The Samsung processor is fast enough to allow crystal clear video to play in a window on your homescreens, which again is nifty, but not vital.

Are there areas where the phone disappoints? The camera is just 8MP – good, but not market leading – although it has been upgraded to offer a 20-shot burst mode and the automatic selection of a best picture. The firm insists on pre-loading apps which I don’t see much use for – while Dropbox (including a remarkable 50GB of storage for two years) and Flipboard are useful, the Music, Game and Video Hubs will have to offer remarkable content to outplay the entirety of the app store, Google Play.

I didn’t get long enough with the phone to talk about the battery life – a 2,100mAh battery is big, but this is a demanding phone that users will have on more than ever before, not only thanks to the screen that stays on because you’re looking at it. Samsung assures me that the performance will be better than the SII; it needs to be much better. It’s good to see, however, that one of the range of optional accessories will be wireless charging, via a special back and charging pad ideal for the bedside table.

Overall, the device is in many ways much like its predecessor: does it feel as solid or heavy in the hand as the iPhone? No, although it’s certainly a lot bigger. Is it a different, superb product in its own right? Absolutely. On spending just a short time with the S3, I’m confident in saying that it’s a worthy successor to the globally popular S2. But I also want to see how much all those new features make a real difference in everyday use to form a fuller opinion.

Specifications:

Screen: 4.8” Super Amoled HD display Storage: 16/32/64GB depending on model, plus expandable MicroSD card Cloud storage: 50GB Dropbox for two years Colour: Pebble blue or marble white Battery: 2,100mAh (wireless charging optional extra) Camera: 8MP rear; 1.9 MP front Resolution: 720 x 1280 px (306ppi) RAM: 1GB Dimensions: 136.6 x 70.6 x 8.55 mm Weight: 133g Operating System: Android 4.0.4 Processor: Exynos 4 Quad (1.4GHz)

Meizu MX smartphone

The Chinese company, Meizu has decided and confirmed brings Samsung’s quad-core Exynos SoC into its smartphone. The Meizu MX smartphone sports new Exynos processor that based on Cortex-A9 architecture with 32nm HKMG technology.
New Meizu MX is scheduled to launch in June 2012 with a 50 percent increase GPU performance, a 50 percent reduce power consumption, and a 60 percent faster in processor performance compared to previous model, the dual-core version of Meizu MX.

Beside quad core CPU, new MX smartphone will have 2GB of RAM (instead of 1GB on previous version), and 32GB / 64GB of internal memory (only 16GB for dual-core model). The new Meizu MX will boasts a 4-inch touchscreen ‘retina display’ with a resolution of 960 x 480 pixel. For OS factor, Meizu MX should be ship with Android 4.0 Ice Cream Sandwich OS.

 

Posted by Tera 

Call Of Duty: Black Ops II Officially Announced

After making billions from the previous Call of Duty game, the publisher Activision is readying the next installment in the series. As speculated earlier, the game is being developed by Treyarch, and will be called Black Ops II.


The first official trailer reveals that the game is set in 2025, during the second cold war. It contains a plethora of futuristic guns, stealth planes, and quadrotors. On the other hand, a level or two seem to involve horse riding as well. Folks at TheVerge.com also share a tip that the protagonist is David Mason, the son of Alex Mason, who was a lead character in the original Black Ops game. The missions are said to be non-linear, and will allow players to shift between team members. Apart from the multiplayer mode, Treyarch will duly cover the Zombie modes too.


According to Activision, Black Ops II will hit the market on 13th November. Till then, check out its action-packed trailer.