Future Tech: Visible Light Communications

Future Tech: Visible Light Communications

Visible Light Communication uses light emitting diodes (LEDs), for the dual role of illumination and data transmission. Using the visible light spectrum, which is free and less crowded than other frequencies, wireless services can be piggy-backed over existing lighting installations. With this leading edge technology, data including video and audio, internet traffic, etc, can be transmitted at high speeds using LED light.
Prof Harald Haas leads the EPSRC-funded D-LIGHT project at the School of Electronics and Engineering at the University of Edinburgh.
VLC technology has the potential to deliver data transfer rates in excess of hundreds of megabits per second. Light radiation neither constitutes nor suffers from electromagnetic interference (EMI) making VLC a very attractive technology in places/environments where electromagnetic interference (EMI) is an issue, such as in hospitals and in aircraft. In addition, where security of local communication is important eg defence and fanance applications, D-Light technology offers a secure medium for communication in an office/building environment.
The two year D-Light project is midway through its funding. The main commercial goal is the formation of a University of Edinburgh spinout company, hopefully starting in 2012.
Visit the D-LIGHT project site here:  http://visiblelightcomm.com/

VLC Applications:

A wide range of applications would benefit from using novel visible light communications:

• WiFi Spectrum Relief - Providing additional bandwidth in environments where licensed and/or unlicensed communication bands are congested
• Smart Home Network – Enabling smart domestic/industrial lighting; home wireless communication including media streaming and internet access
• Commercial Aviation – Enabling wireless data communications such as in-flight entertainment and personal communications
• Hazardous Environments- Enabling data communications in environments where RF is potentially dangerous, such as oil & gas, petrochemicals and mining
• Hospital and Healthcare – Enabling mobility and data communications in hospitals
• Defence and Military Applications – Enabling high data rate wireless communications within military vehicles and aircraft
• Corporate and Organisational Security – Enabling the use of wireless networks in applications where (WiFi) presents a security risk
• Underwater Communications – Enabling communications between divers and/or remote operated vehicles
• Location-Based Services – Enabling navigation and tracking inside buildings.

The two year D-Light project is midway through its funding. The main commercial goal is the formation of a University of Edinburgh spinout company, hopefully starting in 2012.

Windows Tip: Recover Product Keys/Serial Nos

Windows Tip: Recover Product Keys/Serial Nos

July 25th, 2007 | by Anil | Many times we need to re-install the operating system for many reasons, and if you are using windows then there are more chances that you re-install the OS . One common problem one faces during re-istallation process is the product keys/serial nos/registration keys for software like MS-Office, Windows, Exchange Server, and SQL Server
. We either misplace them or when you buy a PC with preinstalled software they may or may not provide the keys seperatly.
There is an easy way to keep track of the keys for the above mentioned softwares. ProduKey is a small utility that displays the ProductID and the CD-Key of MS-Office, Windows, Exchange Server, and SQL Server installed on your computer. You can view this information for your current running operating system, or for another operating system/computer – by using command-line options. This utility can be useful if you lost the product key of your Windows/Office, and you want to reinstall it on your computer.
Download this from NirSoft’s website and unzip it. Run the ProduKey.exe, then it will give you the list of your installed softwares and their product keys which you could save/print for further reference.
Here is a screenshot of a sample run on my PC. (I blocked out my details)

Do you think this tip is useful for you? Let me know your comments!

IPv6: Are You Ready?

IPv6: Are You Ready?

June 12th, 2011 | by Anil | As IPv6 is around the corner and set to grow in the coming few years, are you ready for it yet?
Find out using this test if your network are ready for IPv6.
IPv6 is an IP address standard designed to replace the current IPv4 protocol, which has been in use since the 1980s for routing Internet traffic. The new protocol has been available for several years now and supports several magnitudes more address spaces than IPv4, while also providing better security and reliability.
For more than 30 years, 32-bit addresses have served us well,but the growth of the Internet has mandated a need for more addresses than is possible with IPv4. IPv6 allows for vastly more addresses. IPv6 is the only long-term solution,  it has not yet been widely deployed. With IPv4 addresses expected to run out in 2011, only 0.2% of Internet users have native IPv6 connectivity.

Decomposition of an IPv6 address into its binary form.

While IPv4 allows 32 bits for an Internet Protocol address, and can therefore support 232 (4,294,967,296) addresses, IPv6 uses 128-bit addresses, so the new address space supports 2128 (approximately 340 undecillion or 3.4×1038) addresses. This expansion allows for many more devices and users on the internet as well as extra flexibility in allocating addresses and efficiency for routing traffic. It also eliminates the primary need for network address translation (NAT), which gained widespread deployment as an effort to alleviate IPv4 address exhaustion.
On 8 June, 2011, top websites and Internet service providers around the world, including Google, Facebook, Yahoo!, Akamai and Limelight Networks joined together with more than 1000 other participating websites in World IPv6 Day for a successful global-scale trial of the new Internet Protocol, IPv6. By providing a coordinated 24-hour “test flight”, the event helped demonstrate that major websites around the world are well-positioned for the move to a global IPv6-enabled Internet, enabling its continued exponential growth.
Organised by the Internet Society, the project was intended to raise awareness about the need to start the global transition to IPv6 and to enable participants to gather data about potential glitches.
Many of the problems are likely to stem from the simple facts that IPv6 is far newer and untested technology compared with IPv4, and that the two protocols will need to coexist for several years.
The real test of the IPv6 protocol, however, will come when companies start migrating to it in earnest in the next few years.

Steve Jobs’ Golden Words

Steve Jobs’ Golden Words

October 2nd, 2011 | by Anil | “Your time is limited, so don’t waste it living someone else’s life. Don’t be trapped by dogma – which is living with the results of other people’s thinking. Don’t let the noise of other’s opinions drown out your own inner voice. And most important, have the courage to follow your heart and intuition. They somehow already know what you truly want to become. Everything else is secondary.”
Steve Jobs (1955-2011)

Mobile Phone Brain Cancer Link Rejected

Mobile Phone Brain Cancer Link Rejected

October 22nd, 2011 Further research has been published suggesting there is no link between mobile phones and brain cancer.
The risk mobiles present has been much debated over the past 20 years as use of the phones has soared.
The latest study led by the Institute of Cancer Epidemiology in Denmark looked at more than 350,000 people with mobile phones over an 18-year period.
Researchers concluded users were at no greater risk than anyone else of developing brain cancer.
The findings, published on the British Medical Journal website, come after a series of studies have come to similar conclusions.

The Text Message/SMS Turns 19 Years Old

The Text Message/SMS Turns 19 Years Old

December 3rd, 2011 | by Anil |

SMS Text Message Turns 19 Years Old

According to Wikipedia, the first SMS text message was sent over the Vodafone GSM network in the United Kingdom on 3 December 1992, from a man named Neil Papworth using a personal computer to Richard Jarvis of Vodafone using an Orbitel 901 handset.

The text of the message was “Merry Christmas”.

The technology behind the SMS text is 27-years old, having first been developed in the Franco-German GSM cooperation in 1984 by Friedhelm Hillebrand and Bernard Ghillebaert. It was then, eight years later, that the “Merry Christmas” text was sent.
The Text Message turns 19 years old todaySince then, SMS technology has come a long way to dominant the current mobile messaging scene. In 2010, SMS texts generated $114.6 billion in revenues worldwide, but many believe it’s just the beginning. Experts estimate that mobile networks will earn $726 billion from SMS text messaging over the next five years. So while smartphone applications like GroupMe and services like Apple’s iMessage start to make up larger slices of the text messaging field, SMS is not giving up its mobile messaging throne anytime soon.
Now, it’s time to send a happy birthday text!

kolavari in punjabi

watch rodies 9

SIXTH SENSE TECHNOLOGY A WEARABLE GESTURAL

'SixthSense' is a wearable gestural interface that augments the physical world around us with digital information and lets us use natural hand gestures to interact with that information.

We've evolved over millions of years to sense the world around us. When we encounter something, someone or some place, we use our five natural senses to perceive information about it; that information helps us make decisions and chose the right actions to take. But arguably the most useful information that can help us make the right decision is not naturally perceivable with our five senses, namely the data, information and knowledge that mankind has accumulated about everything and which is increasingly all available online. Although the miniaturization of computing devices allows us to carry computers in our pockets, keeping us continually connected to the digital world, there is no link between our digital devices and our interactions with the physical world. Information is confined traditionally on paper or digitally on a screen. SixthSense bridges this gap, bringing intangible, digital information out into the tangible world, and allowing us to interact with this information via natural hand gestures. ‘SixthSense’ frees information from its confines by seamlessly integrating it with reality, and thus making the entire world your computer.

The SixthSense prototype is comprised of a pocket projector, a mirror and a camera. The hardware components are coupled in a pendant like mobile wearable device. Both the projector and the camera are connected to the mobile computing device in the user’s pocket. The projector projects visual information enabling surfaces, walls and physical objects around us to be used as interfaces; while the camera recognizes and tracks user's hand gestures and physical objects using computer-vision based techniques. The software program processes the video stream data captured by the camera and tracks the locations of the colored markers (visual tracking fiducials) at the tip of the user’s fingers using simple computer-vision techniques. The movements and arrangements of these fiducials are interpreted into gestures that act as interaction instructions for the projected application interfaces. The maximum number of tracked fingers is only constrained by the number of unique fiducials, thus SixthSense also supports multi-touch and multi-user interaction.

The SixthSense prototype implements several applications that demonstrate the usefulness, viability and flexibility of the system. The map application lets the user navigate a map displayed on a nearby surface using hand gestures, similar to gestures supported by Multi-Touch based systems, letting the user zoom in, zoom out or pan using intuitive hand movements. The drawing application lets the user draw on any surface by tracking the fingertip movements of the user’s index finger. SixthSense also recognizes user’s freehand gestures (postures). For example, the SixthSense system implements a gestural camera that takes photos of the scene the user is looking at by detecting the ‘framing’ gesture. The user can stop by any surface or wall and flick through the photos he/she has taken. SixthSense also lets the user draw icons or symbols in the air using the movement of the index finger and recognizes those symbols as interaction instructions. For example, drawing a magnifying glass symbol takes the user to the map application or drawing an ‘@’ symbol lets the user check his mail. The SixthSense system also augments physical objects the user is interacting with by projecting more information about these objects projected on them. For example, a newspaper can show live video news or dynamic information can be provided on a regular piece of paper. The gesture of drawing a circle on the user’s wrist projects an analog watch.

The current prototype system costs approximate $350 to build. Instructions on how to make your own prototype device can be found here (coming soon).

FOR MORE DETAIL VISIT:http://www.pranavmistry.com/projects/sixthsense/

Microsoft NEW Technology Microsoft Surface  

this is new addition to technology

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AKASH TABLET

Aakash Tablet Delivery Delayed

by Admin on December 23, 2011

Quick Update: Jan 03 2012

1. Aakash Tablet reaches 14 Lakh Bookings in 14 days!!!
2. Aakash Tablet’s Upgraded Version, Ubislate 7, sold out till February. Prebooking open for March.
3. Datawind, which produces Aakash Tablet, is planning to set up two more factories in Cochin and Noida to meet the demand.

Aakash Tablet, available for sale online on December 15, was supposed to be delivered within a week of its booking.

Two days ago the manufacturer, DataWind, announced that Aakash was sold out. Now the latest update from the company is that people who booked Aakash Tablet online will have to wait for the delivery till January 2012. However, the reason behind the delay is not mentioned.

All the students and other people who have been waiting excitingly to have the first touch of their dream tablet, Aakash, have to wait till next month. Those who are disappointed for Aakash being sold out still have a chance to pre-book UbiSlate, upgraded version of Aakash, through its official website at Rs 2,999 which is just Rs 499 more than the original version.

The upgraded version is powered by Android 2.3 and is more powerful than the original one. UbiSlate will have a a resistive touchscreen, Cortex A8-700 MHz processor and graphics accelerator HD video processor, 256 MB of RAM and 2 GB of internal memory. Other specifications are – one standard USB port, 3.5 mm audio jack, a 7 inch display with 800 x 480 pixel resolution, resistive touchscreen, GPRS and WiFi support.

UbiSlate is more costly than Aakash, because along with the above specifications, the commercially available upgraded version will have a cellular modem which allows the tablet to deliver web access anywhere when there is a cellular connectivity, and also it will function as a mobile phone. Another important point to note about both the tablets is that internet access will be priced at Rs 99 for 2 GB.

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