Featured Research

from universities, journals, and other organizations

Versatile Ultra-low Power Biomedical Signal Processor

Date:
February 24, 2011
Source:
Interuniversity Microelectronics Centre (IMEC)
Summary:
Researchers have developed a versatile ultra-low power biomedical signal processor, CoolBioTM, meeting the requirements of future wearable biomedical sensor systems. The biomedical signal processor consumes only 13pJ/cycle when running a complex ECG (electrocardiogram) algorithm at 1MHz and 0.4V operating voltage. This C-programmable chip is voltage and performance scalable supporting a frequency range of 1MHz up to 100MHz with an operating voltage from 0.4 to 1.2V.

Flexible ultra-low power biomedical signal processor designed by imec, Holst Centre and NXP.
Credit: IMEC

At the 2011 International Solid-State Circuit Conference (ISSCC2011), imec, Holst Centre and NXP present a versatile ultra-low power biomedical signal processor, CoolBioTM, meeting the requirements of future wearable biomedical sensor systems. The biomedical signal processor consumes only 13pJ/cycle when running a complex ECG (electrocardiogram) algorithm at 1MHz and 0.4V operating voltage. This C-programmable chip is voltage and performance scalable supporting a frequency range of 1MHz up to 100MHz with an operating voltage from 0.4 to 1.2V.

Intelligent body area networks (BANs) consisting of wireless sensors nodes which continuously monitor vital body parameters such as heart, muscle and brain activity promise to be a solution for more comfortable, cost- and time-efficient healthcare systems. They allow people to be monitored and followed up at home, doing their daily life activities.

A major challenge in developing such BANs is to bring overall power consumption down to a level where the system can be powered by energy harvesting or a microbattery that runs for months.

The CoolBio allows drastic power reduction of the wireless BAN sensor nodes. Processing and compressing data locally on the BAN node limits power hungry transmission of data over the wireless link, while adding motion artifact reduction and smart diagnosis at the same time.

Imec, Holst Centre and NXP started from the commercially available low power CoolFluxTM DSP baseband core from NXP to design an ultra-low power flexible processor solution for body area networks applications. The architecture and circuitry were adapted to operate at near-threshold voltage (0.4V) at low operating frequencies. Extreme separation into multiple voltage power, clock and memory domains were implemented to guarantee high energy efficiency from standby to 100 MHz performance. The result means reduced power consumption at low operating frequency, while maintaining high performance possibilities for multi-channel biomedical signal processing.

"We designed the CoolBio based on the concept: "If there's nothing to be done, then don't waste energy!" With this key research focus on low power circuit techniques, we succeeded in designing with our industrial partner NXP a biomedical processor suitable for future biomedical products offering an optimized balance between performance and power consumption;" said Harmke De Groot, program director imec the Netherlands at Holst Centre.

"Ultra low power dissipation is a critical requirement for ubiquitous deployment of Personal Health solutions. NXP continues to push the envelope on all critical functions required in wearable healthcare solutions. CoolBio complements our comprehensive ultra low power portfolio with which we enable solutions improving people's quality of life;" said Bart De Loore, VP New Business at NXP.

Medical device companies, Semiconductor manufacturers or fabless design houses who aim to evaluate the CoolBio or to develop their own bioprocessor can build on imec's expertise by joining imec's research program on ultra-low power processing for body area networks, part of the HUMAN++ program.


Story Source:

The above story is based on materials provided by Interuniversity Microelectronics Centre (IMEC). Note: Materials may be edited for content and length.


Cite This Page:

Interuniversity Microelectronics Centre (IMEC). "Versatile Ultra-low Power Biomedical Signal Processor." ScienceDaily. ScienceDaily, 24 February 2011. <www.sciencedaily.com/releases/2011/02/110224091743.htm>.
Interuniversity Microelectronics Centre (IMEC). (2011, February 24). Versatile Ultra-low Power Biomedical Signal Processor. ScienceDaily. Retrieved August 22, 2014 from www.sciencedaily.com/releases/2011/02/110224091743.htm
Interuniversity Microelectronics Centre (IMEC). "Versatile Ultra-low Power Biomedical Signal Processor." ScienceDaily. www.sciencedaily.com/releases/2011/02/110224091743.htm (accessed August 22, 2014).

Share This




More Matter & Energy News

Friday, August 22, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Flower Power! Dandelions Make Car Tires?

Flower Power! Dandelions Make Car Tires?

Reuters - Business Video Online (Aug. 20, 2014) Forget rolling on rubber, could car drivers soon be traveling on tires made from dandelions? Teams of scientists are racing to breed a type of the yellow flower whose taproot has a milky fluid with tire-grade rubber particles in it. As Joanna Partridge reports, global tire makers are investing millions in research into a new tire source. Video provided by Reuters
Powered by NewsLook.com
Awesome New Camouflage Sheet Was Inspired By Octopus Skin

Awesome New Camouflage Sheet Was Inspired By Octopus Skin

Newsy (Aug. 19, 2014) Scientists have developed a new device that mimics the way octopuses blend in with their surroundings to hide from dangerous predators. Video provided by Newsy
Powered by NewsLook.com
Researcher Testing on-Field Concussion Scanners

Researcher Testing on-Field Concussion Scanners

AP (Aug. 19, 2014) Four Texas high school football programs are trying out an experimental system designed to diagnose concussions on the field. The technology is in response to growing concern over head trauma in America's most watched sport. (Aug. 19) Video provided by AP
Powered by NewsLook.com
Green Power Blooms as Japan Unveils 'hydrangea Solar Cell'

Green Power Blooms as Japan Unveils 'hydrangea Solar Cell'

AFP (Aug. 19, 2014) A solar cell that resembles a flower is offering a new take on green energy in Japan, where one scientist is searching for renewables that look good. Duration: 01:29 Video provided by AFP
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:

Breaking News:
from the past week

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile: iPhone Android Web
Follow: Facebook Twitter Google+
Subscribe: RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins