Skip to main content

Posts

Showing posts from 2018

Silent headset lets users quietly commune with computers

Advances in voice recognition technology have seen it become a more viable form of computer interface, but it's not necessarily a quieter one. To prevent the click-clacking of keyboards being replaced by noisy man-machine conversations, MIT researchers are developing a new system called AlterEgo that allows people to talk to computers without speaking and listen to them without using their ears. At first glance, the AlterEgo headpiece looks like the product of a design student who didn't pay attention in class. Instead of the familiar combination of an earpiece and microphone, the device is a cumbersome white plastic curve like the jawbone of some strange animal that hangs off the wearer's ear and arcs over to touch the chin. It might look strange, but it's based on some fairly sophisticated technology. Inside the Alterego are electrodes that scan the jaw and face from neuromuscular signals produced when the wearer thinks about verbalizing words without

New battery design for electric cars would stack up to 1,000-km range

One of the big stumbling blocks preventing the wide scale acceptance of electric cars is dreaded range anxiety. With an average range of around 100 mi (161 km) per charge, all-electric vehicles still can't compete with more conventional cars – especially if lights, windscreen wipers, or air con are needed. To level the playing field a bit, Fraunhofer is working on a new battery design that could increase an electric car's range to 1,000 km (621 mi). Electric cars don't have a single battery, but a collection of battery packs made of hundreds or thousands of individual battery cells that are packed in and wired together. These separate battery cells each require a housing as well as terminals, wiring, cables, and electronic monitors, which all combine to take up 50 percent of the space of a whole battery pack. Additionally, all those electrical connections sap away current through resistance. In partnership with ThyssenKrupp System Engineering and IAV Autom