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Development of Biosignal Recording Board System with Agile Control of Circuit Characteristics for Various Biosignals
Author(s) -
ITO KEITA,
TANI TAKAHARU,
IWAGAMI TAKUMA,
NISHINO SATORU,
KIYOYAMA KOJI,
TANAKA TETSU
Publication year - 2018
Publication title -
electronics and communications in japan
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.131
H-Index - 13
eISSN - 1942-9541
pISSN - 1942-9533
DOI - 10.1002/ecj.12021
Subject(s) - biosignal , motherboard , computer science , analog front end , preamplifier , modelsim , signal (programming language) , micropower , electronic engineering , amplifier , filter (signal processing) , computer hardware , engineering , bandwidth (computing) , field programmable gate array , telecommunications , cmos , vhdl , power (physics) , physics , quantum mechanics , computer vision , programming language
SUMMARY Recently, a novel recording system is strongly required for agile and precise recording of biosignals in various fields, such as medicine, neuroscience, BMI (brain machine interface), and so on. To enable such various biosignal recording, we have proposed an agile biosignal recording system with a newly designed analog front‐end LSI chip having amplification, filtering, and A/D conversion functions. In this paper, we designed and evaluated a neural signal recording circuit and a portable front‐end motherboard. The neural signal recording circuit chip and discrete ICs were mounted on the motherboard. We confirmed that our functional LNA (low noise amplifier) had variable gains and cutoff frequencies appropriate for various biosignals, and also confirmed that biosignal recording board system successfully measured a human electrocardiogram.