10/10/2015
"Say you're reaching for a piece of paper and your hand is bumped mid-reach -- your eyes take time to adjust; your nerves and brain take time to process what has happened; and even more time to get a new signal to your hand, which may take a tenth of a second," Horowitz said.
Because it knows what we are aiming to do, it could be built into the cars of the future, Horowitz said. "If we hit a patch of ice and the car starts swerving, we want the car to know where we meant to go," he said. "For that it has to know which movements of the wheel represent my intention, and which are responses to an environment that's already changed," he added.
It might help prosthetics to be able to keep doing what people intend for them to do, even if they are interrupted by something like a muscle spasm. The algorithm will be able to tell their intent and act on that, independent of what else is happening.
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The surge of the power banks
Kalyan Parbat | ET Bureau | 4 hours ago
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ET Bureau
Since the efforts of handset makers alone won't fulfill the energy demand of today's phones, an entire industry has emerged, offering a whole lot of stuff from fast wireless chargers to power banks to keep the increasingly gorgeous and slimmer smartphone awake.
KOLKATA: For the critics, Apple has left something in the new iPhone to harp on: The battery. One reviewer called iPhone 6S a very good phone ruined by "rubbish battery life." This, in fact, is a problem area across the smartphone spectrum, with a juicier battery remaining the perennial wish of the user.
As battery technology failed to keep pace with an increasingly smarter smartphone, handset manufacturers have resorted to workarounds, such as making the phone frugal on energy to shrinking the rest of the hardware so that there is space for a bigger battery. But since these alone won't fulfill the energy demand of today's phones, an entire industry has emerged too, offering a whole lot of stuff from fast wireless chargers to power banks to keep the increasingly gorgeous and slimmer smartphone awake.
"Nearly 30% of our annual smartphone unit sales have power banks bundled in," said Alok Gupta, managing director and chief executive of The Mobile Store, India's largest cellphone retailer. The advent of 3G and 4G services, which are data-centric and so power-hungry as well, has boosted demand for stuff like power banks, he said. "Two years ago, less than 1% of our annual smartphone sales had power banks bundled in."
While buyers do want phones with longer battery life, the slimmer ones are preferred more, say industry executives. That is limiting the room to fit in a bulkier and more powerful battery.
"Two out of three consumers prefer slimmer smartphones vis-a-vis phones with bigger batteries that are thicker, which prompted us to explore ways to optimize a smartphone's operating system to make it run longer," said Navin Chawla, vice-president and products head at smartphone maker Lava International.
Micromax, India's No. 2 handset maker, said despite intensive research on packing in more power in slimmer cells, it has yet to see "concrete results."
That means, heavy smartphone users like former school teacher Payal Chattopadhyay would continue to be frustrated by the battery that drains out every few hours. "I WhatsApp a lot and love shooting and sharing photos with my smartphone and it's very frustrating when the battery drains out real quick after I've used the flash a bunch of times and uploaded photos," Chattopadhyay said. "There's clearly a gap in what top smartphone brands offer by way of battery life and what 3G/4G customers actually require," she added.
"There's a need for smartphone batteries to evolve," said Manish Sharma, managing director at the local unit of Panasonic, a major smartphone battery manufacturer. Researchers are trying to find ways to improve power capacity, optimise hardware and software, and provide faster charging solutions, he said.
Smartphone vendors and ecosystem partners such as US chip-maker Qualcomm are developing fast wireless charging, software upgrades and gadgets like power banks to deal with the problem, but these steps don't address the real issue of adding more punch to the battery itself.
Chinese smartphone maker Xiaomi said it has designed one of "the smallest and thinnest motherboards" for its flagship Mi 4i range of smartphones to make space for "a huge 3,120mAh battery, which can run for a day and half with normal usage.
Motorola and Lenovo, along with a clutch of smaller brands such as Mitashi, Philips, Gionee and Xolo, have come up with phones with strong battery capacities, ranging between 3,900mAh and 5,300mAh. But these products are heavier and not among the most popular choices of the smartphone user. The iPhone 6S has a modest 1,715 mAh battery, lower than the older iPhone 6 that has a battery strength of 1,810mAh. The fancy Samsung Galaxy S6 has a 2,550mAh battery. Higher the mAh, or millampere-hour, the better the battery capacity. The companies though say upgrades in the phones have made them run longer than earlier versions.
Samsung, the global and India market leader in smartphones, and Qualcomm said one of the areas they are focusing on is super-fast charging technology.
Samsung's adaptive fast charge technology enables a Galaxy S6 user to get four hours of usage by charging the phone for 10 minutes and a 50% charge in 30 minutes, said a Samsung Electronics India spokesman. The company is also applying a new method to "significantly enhance the capacity of lithium-ion batteries" that power smartphones.
Qualcomm recently unveiled Quick Charge 3.0, a phone charging technology that enables a mobile device to charge from zero to 80% in a just 35 minutes. The US chip-maker declined to share specifics, but the company recently said Quick Charge 3.0 would be available "in mobile devices shipped from next year."
Apple, Google, Microsoft and Huawei did not reply to queries on how they are addressing smartphone battery life challenges.
Meanwhile, people are getting used to taking the paraphernalia along, wherever they go, as the phones often require a power-nap every few hours.
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