Browsing by Author "Lin, Yue-Der"

Now showing 1 - 2 of 2

ECG Acquisition via Microphone Port for HRV Analysis
(2011-01-01)
Lin, Yue-Der
;
Wang, Shih-Fan
;
Tsai, Ching-Che
;
Ho, Hu-Ying
;
Chang, Ching-Kang
The microphone port is proposed for the electrocardiogram (ECG) transmission interface in this research. The signal is modulated to assure that the ECG signal can be transmitted through microphone port without low-frequency component attenuation due to the mismatch of frequency characteristics between ECG signal and microphone port. In addition, we want to present whether the obtained ECG is reliable in heart rate variability (HRV) analysis. By Bland and Altman's statistical analysis, high agreement between the conventional and the proposed methods for HRV analysis is derived in this research.
Using conductive fabric for capacitive EEG measurements
(2013-07-01)
Tang, Ya-Wen
;
Lin, Yue-Der
;
Lin, Yen-Ting
;
Chakhap, Jinghom
;
腦科學研究中心
Traditional electroencephalogram (EEG) measurements require conductive gel to ensure good conduction between the electrodes and skin (or scalp). But this gel may make patients uncomfortable because of possible skin allergies during long-term measurement. The measurement procedure is also tedious because pasting the electrodes to the patients scalp is time consuming. The required lead wires also constrain patient movements. This study uses conductive fabric as the capacitive electrode for EEG measurements. This paper provides the design considerations and the related theoretical analysis for this method. A long-term, null-input experiment was conducted to verify the stability of the proposed system. Experiments were conducted over the hair of patients to verify the feasibility of using the method during EEG monitoring. Various mental task experiments were also conducted. The changes in frequency domain analysis show that the proposed strategy discriminates between different mental tasks.