Chip could open way to lighter laptops, smarter phones
Washington: There was a time when a laptop weighing five kg was sold, a mobile phone was larger than a pocket and an iPod played only music. But now a new chip may lead to "smarter" smartphones, lighter laptops, and more energy-friendly data centres.
Harvard graduate student Wonyoung Kim`s on-chip, multi-core voltage regulator (MCVR), addresses what amounts to a mismatch between power supply and demand and help reduce power consumption.
"If you`re listening to music on your MP3 player, you don`t need to send power to the image and graphics processors at the same time," Kim says, according to a Harvard University statement.
"If you`re just looking at photos, you don`t need to power the audio processor or the HD video processor. It`s like shutting off the lights when you leave the room."
The on-chip design means that the power supply can be managed not just for each processor chip, but for each individual core on the chip.
The short distance that signals then have to travel between the voltage regulator and the cores allows power scaling to happen quickly - in a matter of nanoseconds rather than microseconds - further improving efficiency.
The MCVR also uses an algorithm to recognize parts of the processor that are not in use and cuts power to them, saving energy. Kim says it results in longer battery life, while providing the same performance.
Although Kim estimates that the greatest demand for the MCVR right now could be in the market for mobile phones, the device would also have applications in other computing scenarios.
Used in laptops, the MCVR might reduce the heat output of the processor, which is currently one barrier to making slimmer notebooks.
More from India
More from World
More from Sports
More from Entertaiment
- IAF Mirage fighter plane lands on Yamuna Expressway!
- 'Maggi' under regulatory scanner for excess amount of lead, MSG
- Watch: Michelle Obama's 'Gimme Five' fitness video
- When Subramanian Swamy shocked people at a wedding!
- Mumbaikars join hands to save Pakistani teen with rare illness
- Mumbai: Diamond export company denies job to Muslim youth
- PM Modi speaks at Golden Jubilee celebrations of poet Dinkar’s works
- Aapke Sitare: Astro prediction for May 21, 2015
- Mirage 2000 fighter jet landing was part of capability demonstration: IAF
- DNA: IAF Mirage 2000 fighter plane lands successfully on Yamuna expressway
- DNA: Osama documents show 'Indian brother in Madinah' financed al Qaeda
- Coal scam: Naveen Jindal, Madhu Koda and others get bail
- Vadodara: Policemen seen dancing with bar girls
- One year of Modi govt: Arun Jaitley addresses press conference
- ISIS executes Syrian fighter using anti-tank rocket launcher
- CBSE Class 10 Results 2015 to be announced today?
- IAF jet lands on Yamuna expressway
- Check Jharkhand Board jac.nic.in: Class 12th Art Results 2015 declared
- Fawad Khan doesn’t want intimate scenes with Sonam Kapoor?
- Log on to apeamcet.org AP EAMCET Results 2015: Andhra Pradesh EAMCET Marks and AP EAMCET Ranks 2015 declared
- We hire only non-Muslim candidates, diamond export firm tells Muslim youth
- Is MSG in 'Maggi' noodles harmful for you?
- Mumbai firm booked for denying Muslim MBA graduate job on religious grounds, probe ordered
- New IPL rules could see Chennai Super Kings lose MS Dhoni
- Jayalalithaa makes public appearance, meets Governor: As it happened
- `Piku` hits jackpot, does Rs 100 crore business worldwide
- Anurag Kashyap to bid goodbye to India, settle in 'cinema-friendly' France!
- SSLC (tnresults.nic.in) Tenth 10th Results 2015: Tamil Nadu Board Class 10th X Higher Secondary exam results 2015 to be announced shortly
- IPL 2015, Qualifier 2, Chennai Super Kings vs Royal Challengers Bangalore: Preview
- Geelani's passport application incomplete, cannot be processed: MEA