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August 07, 2015
India’s top telecom service provider Bharti Airtel on Thursday commercially launched its fourth generation (4G) communication services, which are expected to make surfing the web on mobile phones much faster than 3G, in almost 300 towns across the country. Airtel became the first telecom company to roll out its 4G services in India.
With an aim to migrate more and more of its Internet subscribers to 4G, Airtel said users upgrading to 4G services can do so while continuing to pay as per their existing 3G data plans.
“With the help of the feedback received from the beta launches, we have now built India’s first commercial 4G network that will make high speed mobile broadband a reality.
“The national roll-out today is another small step in our journey,” Bharti Airtel (India & South Asia) MD & CEO Gopal Vittal told reporters here.
Airtel’s move comes ahead of launch of 4G services by Reliance Jio – the telecom arm of Mukesh Ambani-led Reliance Industries, towards the end of the year.
Various firm, including Airtel and Reliance Jio, had won spectrum needed to run 4G services in 2010, however, roll out of services has been slow due to technology problems and lack of devices.
While Airtel has 4G spectrum in 14 circles, Reliance Jio is the only player to have these airwaves in all the 22 circles.
Around three weeks ago, Mr. Vittal had also written to Airtel customers across the country to provide suggestions regarding tower sites, to which Mr. Vittal said the company received 20,000 responses, out of which 500 provided leads on potential sites.
Mr. Vittal said the company has increased the number of 4G mobile sites three times in the last 60 days to provide better services to customers
Mr. Vittal said Airtel is talking to various handset makers for the past one year on shaping the device ecosystem for 4G. He, however, refused to comment if the company will come with Airtel branded handsets.
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March 28, 2015 1
satellite - india-pslv--irnss-1d

The Indian Space Research Organisation(Isro) on Saturday launched its fourth navigational satellite IRNSS-1D from Sriharikota in Andhra Pradesh, taking it closer to having its own Global Positional System (GPS) like that of the US.
The satellite is the one among the seven IRNSS constellation of satellites slated to be launched to provide navigational services to the region. It has been placed in the geosynchronous orbit to provide navigation, tracking and mapping services.
Exactly at 5:19pm, the rocket - Polar Satellite Launch Vehicle- (PSLV-C-27) standing about 44 metres tall and weighing around 320 tonne, blasted off from the second launch pad at the Satish Dhawan Space Centre.
IRNSS-1D is the fourth of the seven satellites in the Indian Regional Navigational Satellite System (IRNSS) series after IRNSS-1A, IRNSS-1B and IRNSS-IC.
The fifth of the IRNSS series is slated to be launched in August this year. Once five of them are in the constellation, India can have its own GPS like that of the US.
The system would provide two types of services — Standard Positioning Service, which is provided to all users and Restricted Service, which is an encrypted service provided only to authorised users.
source
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September 11, 2014

honda-self-auto-driving-car
Honda shared its vision of the hands-free highway commute Tuesday, a car that can safely drive itself on the freeway while the driver's hands are off the wheel.While the car is just a prototype, Honda says the technology could start appearing on Honda cars in 2020 and beyond.
The prototype — an Acura RLX sedan — has cameras that monitor lane marking and multiple radar sensors on the front and sides. On top is a beacon that uses laser beams to continually scan the car's surroundings, similar to self-driving prototypes already introduced by Google, Ford and Toyota. GPS also helps the car stay on a previously mapped course and follow the speed limit.
On a loop around Detroit, the car's driver took his hands off the wheel as the car entered the freeway. It accelerated to the speed limit and applied the brakes if it got too close to a car in front. It signaled to change lanes and waited for an opening. The car merged easily onto two other freeways and edged to the left to avoid a construction zone. To exit, the car reduced its speed to 35 miles per hour on the ramp.
The driver's hands remained off the wheel for the entire eight-mile loop. But Honda says the car will automatically return control to the driver if it senses it can't handle a situation. One example: If a car cuts in front of the Honda too closely and fast braking is needed.
Honda has been working on this prototype car in Japan for about a year, but it's the result of decades of safety research, said Hironobu Kiryu, the car's chief engineer.

"Honda is aiming to eliminate accidents, not just for the driver but for pedestrians and drivers of other cars," he said.
source - TOI

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