A micropower biomedical signal processor for mobile healthcare applications

Shu Yu Hsu; Yao Lin Chen; Po Yao Chang; Jui Yuan Yu; Ten Fang Yang; Ray Jade Chen; Chen Yi Lee

doi:10.1109/ASSCC.2011.6123572

A micropower biomedical signal processor for mobile healthcare applications

Shu Yu Hsu, Yao Lin Chen, Po Yao Chang, Jui Yuan Yu, Ten Fang Yang, Ray Jade Chen, Chen Yi Lee

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

17 Citations (Scopus)

Abstract

This work presents a biomedical signal processor (BSP) with hybrid functional cores to optimize the power dissipation and system flexibility for mobile healthcare applications. Embedded with the biomedical core and a 32-bit RISC core, multi-features are extracted for classification and the abnormal data are compressed. In addition, the crypto core secures both the data and wireless link protocols to protect the user privacy. This BSP chip is fabricated in a 90nm standard CMOS technology with core area of 1.17mm ². To overcome the leakage in advanced technology, a duty-cycled clock generator minimizes the system active duty and the inactive functions are power gated. Operating at 25MHz frequency and 0.5V supply voltage, the energy of RISC core is down to 3.44pJ/cycle. Accompanied with dedicated biomedical and crypto cores, the average BSP power achieves 38μW at 25MHz and 0.5/1.0V when performing the ECG alarm application.

Original language	English
Title of host publication	2011 Proceedings of Technical Papers: IEEE Asian Solid-State Circuits Conference 2011, A-SSCC 2011
Pages	301-304
Number of pages	4
DOIs	https://doi.org/10.1109/ASSCC.2011.6123572
Publication status	Published - 2011
Event	7th IEEE Asian Solid-State Circuits Conference, A-SSCC 2011 - Jeju, Korea, Republic of Duration: Nov 14 2011 → Nov 16 2011

Other

Other	7th IEEE Asian Solid-State Circuits Conference, A-SSCC 2011
Country/Territory	Korea, Republic of
City	Jeju
Period	11/14/11 → 11/16/11

ASJC Scopus subject areas

Hardware and Architecture
Electrical and Electronic Engineering

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10.1109/ASSCC.2011.6123572

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Hsu, SY, Chen, YL, Chang, PY, Yu, JY, Yang, TF, Chen, RJ & Lee, CY 2011, A micropower biomedical signal processor for mobile healthcare applications. in 2011 Proceedings of Technical Papers: IEEE Asian Solid-State Circuits Conference 2011, A-SSCC 2011., 6123572, pp. 301-304, 7th IEEE Asian Solid-State Circuits Conference, A-SSCC 2011, Jeju, Korea, Republic of, 11/14/11. https://doi.org/10.1109/ASSCC.2011.6123572

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author = "Hsu, {Shu Yu} and Chen, {Yao Lin} and Chang, {Po Yao} and Yu, {Jui Yuan} and Yang, {Ten Fang} and Chen, {Ray Jade} and Lee, {Chen Yi}",

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AU - Chen, Yao Lin

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AU - Chen, Ray Jade

AU - Lee, Chen Yi

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AB - This work presents a biomedical signal processor (BSP) with hybrid functional cores to optimize the power dissipation and system flexibility for mobile healthcare applications. Embedded with the biomedical core and a 32-bit RISC core, multi-features are extracted for classification and the abnormal data are compressed. In addition, the crypto core secures both the data and wireless link protocols to protect the user privacy. This BSP chip is fabricated in a 90nm standard CMOS technology with core area of 1.17mm 2. To overcome the leakage in advanced technology, a duty-cycled clock generator minimizes the system active duty and the inactive functions are power gated. Operating at 25MHz frequency and 0.5V supply voltage, the energy of RISC core is down to 3.44pJ/cycle. Accompanied with dedicated biomedical and crypto cores, the average BSP power achieves 38μW at 25MHz and 0.5/1.0V when performing the ECG alarm application.

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A micropower biomedical signal processor for mobile healthcare applications

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