Bluetooth

Bluetooth is a wireless technology standard for exchanging data over short distances (using short-wavelength radio transmissions in the ISM band from 2400–2480 MHz) from fixed and mobile devices, creating personal area networks (PANs) with high levels of security. Created by telecom vendor Ericsson in 1994, it was originally conceived as a wireless alternative to RS-232 data cables. It can connect several devices, overcoming problems of synchronization.

Now explore the some knowledge of Bluetooth :-

TABLE OF CONTENTS:

1. Bluetooth Technology
2. Applications
3. Working
4. History
5. Latest Research, Facts and Problems

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1. Bluetooth Technology

What is Bluetooth?

      Bluetooth is a wireless technology used to transfer data between different electronic devices. The distance of data transmission is small in comparison to other modes of wireless communication. This technology eradicates the use of cords, cables, adapters and permits the electronic devices to communicate wirelessly among each other.  

The key features of Bluetooth technology:

• Less complication
• Less power consumption
• Available at cheaper rates
• Robustness

Bluetooth technology permits hands free headset for incoming voice calls, ability of printing and fax, and automatic synchronization of PDA.

Classification

Various types of Bluetooth technology are available in the markets which help the consumers to communicate wirelessly. The different types of Bluetooth devices are PC cards, radios, dongles, and headsets. Laptops and other Internet enabled equipments use Bluetooth technology such as wireless mouse and keyboard to communicate wirelessly. Music players like iPods, music phones, or other MP3 players make use of stereo headphones.

Go to Index                                                                                                      2. Bluetooth Applications >>

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Sony unveils waterproof, ultra-thin Xperia Tablet Z

                                                  

NEW DELHI: Sony, which recently unveiled its Xperia Z smartphone with a 5-inch screen, has taken another shot at the tablet market with a new ultra-thin device named Xperia Tablet Z. This tablet runs on Android 4.1 (Jelly Bean) out-of-the-box and has waistline of just 6.9mm, thinner than rivals like Apple iPad and Google Nexus 10. Another key feature is its shockproof, dust resistant and waterproof body, which makes it largely impervious to damage. 

The all-new Xperia Tablet Z by Sony features a 10.1-inch TFT touchscreen with Mobile Bravia Engine 2 display technology and image resolution of 1920x1200p. It is powered by a 1.5GHz quad-core processor, coupled with 2GB RAM, and 32GB onboard storage, with microSD support of up to 32GB. The tablet has an 8.1MP camera with Exmor R imaging technology and LED flash on the back, a feature no other rival can match as of now. 

Connectivity suite of Xperia Tablet Z includes top notch features like 4G LTE as well as NFC, along with standard options like 2G, 3G, Wi-Fi, Bluetooth 4.0 and microUSB. Powered by a 6,000mAh battery, the device will be available in black and white colours. Sony has also included its proprietary S-Force virtual surround sound technology in the tablet for enhanced audio quality. 

Sony has announced this tablet for Japan only as of now, though technology websites are abuzz that a global edition of this product will be unveiled at the Mobile World Congress in February 2013. This will be the third tablet by Sony, after Xperia Tablet S and Xperia Tablet P, which failed to make their mark in the market.

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Samsung to launch 5.8-inch Galaxy Fonblet smartphone, Galaxy X Cover 2 at MWC 2013

Apart from unveiling it's latest flagship smartphone, the Galaxy S IV as well as the new Galaxy Note, the company is also planning to launch a new smartphone sporting a huge 5.8-inch display.

Samsung oriented blog, SamMobile states that the Korean electronics giant will soon announce a smartphone dubbed as the Galaxy Fonblet 5.8 (GT-I9152). It may come with Android Jelly Bean straight out of the box and feature dual-SIM capabilities as well. The device is expected to launch in Pure White.

This smartphone is expected to be a superior version of the Galaxy Player 5.8 that is currently available only in Korea. It comes with a 5.8-inch TFT screen with QHD resolution display, 3-megapixel camera, Bluetooth 4.0 and runs on Android 4.0 (Ice Cream Sandwich).

In some more news, the blog also confirms the existence of the next iteration of the Galaxy X Cover (launched in 2011) in the form of the X Cover 2 GT-S7710. The device is likely to come in two colour versions (Titan Gray and Black/Red). Pricing and availability details are currently unknown, but we expect Samsung to announce these smartphones soon.

Measuring 130.5 × 67.7 × 11.9 mm and weighing 148 grams, the Galaxy X Cover 2 will run Android Jelly Bean (version 4.1 or 4.2) and like its predecessor, is going to be dustproof and waterproof. Other features include a 4-inch WVGA display, 5-megapixel rear camera, VGA front-facing camera, 4GB of internal memory, microSD card support, HSPA+, Wi-Fi 802.11 a/b/g/n, GPS, Bluetooth 4.0 and a 1,700 mAh battery.

Samsung Galaxy X Cover 2 key specifications

• 4-inch TFT 480×800 WVGA
• 4GB internal storage with microSD support up to 32GB
• 5-megapixel rear camera
• VGA front facing camera
• Bluetooth 4.0, Wi-Fi 802.11 a/b/g/n, USB 2.0, A-GPS
• EDGE (850/900/1800/1900) HSPA+21.1Mbps, HSUPA 5.76Mbps (850/900/1900/2100)
• 1,700 mAh
• Android Jelly Bean
• 130.5×67.7×11.9mm
• 148 grams

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Facebook Adds Voice Calling to iOS Messenger App

Facebook is rolling out a free calling option to iPhone Facebook Messenger users.

The new function, which is rolling out to the Facebook Messenger iOS app, requires Messenger users to open a conversation with another iPhone owner, tap the "i" button in the top right corner, and press "Free Call." The recipient will then receive a pop-up notification that says, for example, "Stephanie Mlot is calling."

To those users without full functionality yet, the app reminds you that free calling is unavailable, and "You don't have permission to chat with this person" (see below).

The new option offers a real boost to people with spotty cell service at work or at home, and those hoping to conserve minutes.

Facebook hinted that the feature was in the works earlier this month, when it rolled out updates to its iOS and Android Messenger apps to include voicemail. At that point, Canadian iOS users were also given access to the voice-calling feature.

As The Verge pointed out, the move means Facebook could have "one of the largest communities of VoIP users in the world." Competitors like Skype and Vonage have much smaller user bases compared to the most popular social network.

Facebook and Skype have been in cahoots for two and a half years, since the social network in 2011 integrated a Skype video-calling feature directly into Facebook.com. But the tool was not made available on mobile, perhaps to allow Facebook to strike out on its own.

The Facebook Messenger app is currently available for free in the Apple App Store.

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Samsung Galaxy Note 10.1, Galaxy Tab 2 get Android Jelly Bean upgrade

New Delhi: Here is good news for those who own Samsung Galaxy Note 10.1 and Galaxy Tab 2 tablets. Samsung has announced a software update for its tablets. The company has started the process of updating their tabs to Android 4.1 Jelly Bean.

The update will not only improve the experience, but will also boost performance at the same time.
The new version of Android will users access to Google Now, Google's personal assistant feature, and improved performance with Project Butter.

According to BGR, "the Note's update includes dramatic improvements to the multitasking and S Pen features, while the Tab 2 will bring the company's Premium Suite of features and productivity apps to the device."

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HTC Butterfly to soon launch in India

HTC’s very first phablet may soon arrive in the Indian market as teased by the Taiwanese manufacturer’s Facebook page for the Indian region. This device is the very first 5-inch smartphone and it is called the HTC Butterfly.

The pricing for this device is not yet confirmed but an earlier report by AndroidOS.in suggests that it might have an MRP of Rs. 49,000 while later a few reports suggested that it might have a street price of Rs. 45,000. None of this is yet confirmed by the company, but we believe it is like to be priced somewhere above Rs. 45,000.

The HTC Butterfly first appeared as the HTC J Butterfly exclusively in Japan and then as the Droid DNA in the US via Verizon Wireless.

The device is powered by a quad-core Qualcomm Snapdragon S4 Pro processor clocked at 1.5GHz and it runs Android 4.1 Jelly Bean which is skinned with HTC Sense UI. It sports a 5-inch Super LCD 3 display with Gorilla Glass 2 protection. Further the device has 2GB of RAM, 16GB of built-in storage, 8.1 megapixel rear camera and a 2 megapixel front facing camera.

It is also equipped with a 2,020 mAh battery, all the prime connectivity features and a microSD card which supports expandable memory up to 32GB. The recently announced Xperia Z from Sony is more likely to be one if its key competitors.

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Samsung Galaxy S IV coming in May 2013

Samsung is again readying a big launch for the month of May. The company which unveiled its flagship smartphone Galaxy S3 in May last year, is reportedly launching its successor Samsung Galaxy S IV in May 2013.

The speculations have been fuelled by a post from Samsung Lebanon on Facebook saying that the upcoming Galaxy S IV will not launch before May 2013. Facebook user Anthony Ghattas posted a question on Samsung Lebanon's page on the social networking website, asking, "Hey, is there any news for the Samsung Galaxy S4 release?" The reply he received from the company was "The Galaxy SIV won't be released before May 2013."

Sammobile, a tech blog, has also revealed leaked press shots of the Galaxy S IV. The blog noticed that "the device will use on-screen buttons as there is no home-button present on the device, the bezel around the device is much thinner and the device features a large display."

Rumours say that the upcoming flagship will have a 4.99-inch SuperAMOLED touchscreen with 441ppi pixel density. According to a Wall Street Journal report, the display of the device will be unbreakable, while rumours also suggest that it will also be bendable. Speculations are also rife that the device will be powered by a 2GHz quad-core processor and sport a 13MP camera on the back.

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