By Topic

A Signal Based Clocking Scheme for A/D Converters in Body Sensor Networks

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$31 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

2 Author(s)
Rieger, R. ; Dept. of Electr. Eng., Nat. Sun Yat-Sen Univ., Kaohsiung ; Shinyu Chen

The importance of body sensor networks to monitor patients over a prolonged period of time has increased with an advance in home healthcare applications. Sensor nodes need to operate with very low-power consumption and under the constraint of limited memory capacity. Therefore, it appears wasteful to digitize the sensor signal at a constant sample rate, given that the frequency contents of body signals vary with time. In this paper a low-power analog system is proposed, which adjusts the converter clock rate to suit the momentary requirement of the signal to be converted. Simulation of the system at the circuit level shows a significant reduction in the average sample frequency and data rate of 50% and 35% respectively compared to the conventional approach

Published in:

TENCON 2006. 2006 IEEE Region 10 Conference

Date of Conference:

14-17 Nov. 2006