Featured Articles

Apple iPad Air 2 costs $275 to build

Apple iPad Air 2 costs $275 to build

IHS has told Recode that the Apple iPad Air 2 16GB Wifi costs only $275 to build -- not bad…

More...
LG sells 16.8 million smartphones in Q3 14

LG sells 16.8 million smartphones in Q3 14

As Samsung is losing market share, another Korean company, which many had written off, is gaining.

More...
LG G Watch R EU price set at €299

LG G Watch R EU price set at €299

LG G Watch R is probably the best looking Android Wear device on the market and many have been waiting for…

More...
Nvidia GTX 970 SLI tested

Nvidia GTX 970 SLI tested

Nvidia recently released two new graphics cards based on its latest Maxwell GPU architecture, with exceptional performance-per-watt. The Geforce GTX 970…

More...
Gainward GTX 970 Phantom previewed

Gainward GTX 970 Phantom previewed

Nvidia has released two new graphics cards based on its latest Maxwell GPU architecture. The Geforce GTX 970 and Geforce GTX…

More...
Frontpage Slideshow | Copyright © 2006-2010 orks, a business unit of Nuevvo Webware Ltd.
Tuesday, 20 September 2011 12:11

Boffins come up with new power management technique

Written by Nick Farell
y_exclamation

All in the signal's header
Boffins at the University of Michigan researchers have come up with a new power management system for smartphones that could improve battery life by 50 per cent.

Xinyu Zhang and Kang Shin have created a proof-of-concept system known as E-MiLi, or Energy-Minimizing Idle Listening. This fixes the energy waste that occurs when "sleeping" phones are looking for incoming messages and clear communication channels.

E-MiLi slows down the clock of a phone's WiFi card by up to 1/16 its normal frequency in order to save power, but then kicks it back up to full speed when information is coming in. The phone uses the header of the incoming message to wake itself up from its "subconscious mode," so the clock is at a full speed to receive the main message.

It does require firmware to be installed on phones and other devices that would be sending them. The header would need to be encoded in such a way that the receiving phone could detect it too. Shin and Zhang have created such firmware, but WiFi chipset manufacturers would have to adopt it, and then smartphone manufacturers would in turn have to start using those chips.


Nick Farell

E-mail: This e-mail address is being protected from spambots. You need JavaScript enabled to view it
blog comments powered by Disqus

 

Facebook activity

Latest Commented Articles

Recent Comments