The common-mode (CM) current due to a trace near printed circuit board (PCB) edge, and its suppression by guard band have been studied experimentally with finite-difference time-domain (FDTD) modeling. As the band, copper tape is connected along entire edge of ground plane. First, PCB electromagnetic interference (EMI) coupling path that results from nonzero impedance plane discussed. moved closer CM increases. Then, effect on detailed. A parallel most effective in suppressing current....

An equivalent electrical circuit of a microstrip line (MSL) with magnetic film was proposed. The estimation method its parameters investigated in order to clarify design guideline for noise suppression sheet (NSS) which placed on the traces electronic devices. First, effect complex permeability by analysis cross section line. Second, an MSL Co-Zr-Nb designed as test bench considering impedance matching signal frequency range (below 1 GHz). Then, transmission coefficients and conducted were...

Abstract A method for detecting atrial fibrillation (AF) from electrocardiogram (ECG) measured by a 24‐hour Holter electrocardiograph (Holter‐ECG) is proposed using convolutional neural network (CNN). In the preprocessing stage, artifacts and noises on Holter‐ECG are removed bandpass filter. The detection consists of two stages: extraction abnormal waveforms one‐dimensional CNN trained with segmented ECG waveform its spectral entropy, identification AF two‐dimensional spectrogram. total 47...

As a fundamental study on quantifying subjective evaluation by eye movement information, relationship between fixation time and was discussed. Firstly, view point measurement system to extract in opinion tests with pictures developed. In the system, linear projection transform adaptive α-Trimmed mean filters were used detect positions picture reduce noise measurements, respectively. The detected when change of position less than 2° kept for more 150ms. Secondly, its measured pairs food...

An equivalent circuit model for predicting electro- magnetic (EM) radiation from a printed board (PCB) driven by connected feed cable is proposed and demonstrated. The based on consideration of concepts CM antenna impedance distributed constant to the conventional mechanisms current- voltage-driven. Good agreement between predicted measured results shows validity model. can predict explain frequency response current with engineering accuracy, also express intermediate state current-driven It...

The human footsteps recognition (walk-recognition) is discussed. pitch frequency related with walking pace, and the first peak of a footstep, are characterized by analysis, used as feature vector for recognition. A simple method comparing Euclidean distance used. rate approximately 83%, then feasibility walk-recognition confirmed.

The FDTD (finite-difference time-domain) method is used for modeling EMI antenna geometries to anticipate problems in high-speed digital designs. well-suited large-scale such as cables that might be driven against PCB ground planes a result of noise voltage appears at the connector. Three specific cases are addressed herein including simple cable ground, coupling between and I/O line drives PCB, finite impedance reference plane results an effective source cable. compared with measurements....

PCB traces routed near board edges and carrying high-speed signals are considered to contribute EMI problems. Consequently, design maxims state that might have intentional or unintentional high frequency components on them be kept away from edges. This costs valuable surface area as boards become more densely designed. Further, concerning not well quantified. The increase in a trace is increasingly closer the edge has been studied experimentally with numerical modeling.

In order to study the application of event-related potential (ERP) for performing objective evaluation food, ERP was measured when subjectively judging appearance food by three-grade scale with opinion “like”, “favorite” and “more favorite”. Sushi cooked rice were selected as typical foods. Five pictures each that subjects liked chosen before measurements, then used in tests. As a result, P300 component detected, area (surrounded waveform from latency 250 500ms) became larger judged...

Circuit parameters of microstrip lines (MSLs) covered by noise suppression sheets (NSSs) with different geometries were estimated magnetic circuit analysis and electromagnetic field simulation. The parameters, resistance inductance, almost the same measured values below wavelength resonance frequency, respectively. This result indicates feasibility to design MSL NSS using those geometries.

Abstract Measurement and modeling of the undesired electromagnetic waves (electromagnetic noise) from electronic devices play an important role in understanding EMI problems establishing design techniques. One methods analysis is measurement common mode current flowing cables connected to devices. This paper reviews on printed circuit boards (PCB) discusses results related PCB. FDTD by traces placed near PCB edge suppression guard band are described. © 2005 Wiley Periodicals, Inc. Electron...

To study the application of event-related potential (ERP) for performing picture quality evaluation, ERP was measured both still and blurred pictures that were subjectively evaluated. A comparison method with scales each “better” “worse” opinion used. The results showed largest P300 amplitude “much better” worse” appeared, latency varied depending on opinions in scale, which indicates one methods evaluation using ERP.

Electromagnetic (EM) radiation from a feed cable attached to printed circuit board (PCB), which is commonly encountered electromagnetic interference (EMI) problem at high-speed electronic PCB designs, investigated by experimental and finite-difference time-domain (FDTD) modeling. In this paper, we propose demonstrate guard-band structure as method for suppressing the EM with cable. A signal trace located between two ground traces (guard-band: GB). Four different cross-sectional structures,...