MagMIMO feel it is a phone and send a magnetic field aligned its charging - so you never have to connect the charging
Get ready to cut the cord. MagMIMO device that can charge phones remotely boot can make this easy as sitting at the table.
Wireless chargers already exist, but need the phone to be very close to the surface loading. "With the charging plate to remember to remove the handset and place it right on the surface of the material," says Dina Katabi from MIT, managing MagMIMO development team.
"Our vision for people to start charging the phone, just sitting at the table: they go to a meeting, return the phone to start charging again," she says.
30 centimeters Katabi prototype of the iPhone 4s battery from empty to full charge within a less than 5 hours. No matter where your phone is - upside down in your pocket, or placed on the table - and it does not have to sit tight. Katabi now trying to increase the range.
MagMIMO borrows a trick from the radio: advanced Wi-Fi routers can detect when a computer is connected to, and strengthen the direction of the signal. MagMIMO doing the same thing, but uses a magnetic field instead of radio waves. Array coil generates a magnetic field, and when the phone disturbs the field, it felt MagMIMO and focuses on the phone, each coil creating a slightly different magnetic field. Magnetic fields reinforce each other so that the total magnetic field, reaching the phone, it would be the strongest.
When you try a prototype Katabi and colleague Jouy Jadidian also added a small coil to the wire for iPhone charging connector. The magnetic field of the coil current which can charge your phone. Several phone models already made with a coil, and more will appear on the market soon.
In the smart phone owners "battery anxiety divestment appropriate wireless charging vital portable technology such as smart watches and headphones popularity. These small devices have less space for batteries, "says technology analyst Ross Rubin of Reticle Research in New York, and our outlets already besieged mobile devices can charge wire.
"MagMIMO consumes as much energy as existing solutions, however, can load your phone remotely removed from the user's pocket," the team wrote in a document presented last week at the International Mobile Computing and Networking Conference in Maui, Hawaii. It should be noted that other than strongly focused WiFi, focused magnetic field not heat human tissue.
"Dreams is to never have to worry about charging your devices," said Rubin. "Wireless WiFi energy to virtually every home and also in most public places."
