• 대한의용생체공학회:의공학회지
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• 제11권1호
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• pp.57-64
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• 1990

This study describes the design of the portable intelligent QT analyzer which can record and analyze the ambulatory ECG data. System hardware is consisted of the one chip microcomputer(80C31) , A/D, ROM, RAM, LCD display and preamplifier. ECG data were processed by the differentiator and the digital filter. The de- tection of the parameters-QT, QTP and RR interval-was accomplished by the software algorithm using the slope and the amplitude of the processed data. Using this system, the trends of the parameters obtained during the long term could be observed.

• International Journal of Fuzzy Logic and Intelligent Systems
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• 제8권2호
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• pp.100-104
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• 2008

In this paper, intelligent filtering methodology for masterarm translation signal is proposed. Fidelity and stability are contradicting factors in teleoperation. Human hand trembling filtering is one of the problems in telemanipulation field. During every operation the hand has a certain vibration that can affect the quality of teleoperation, especially in carrying FPD (Flat Panel for Display), nanomanipuation and other precise tasks. It is very important to study the kinesthetic perception of the human and to optimize the teleoperation system accordingly. To cancel out the influence of human's hand vibration the signal from the masterarm should be filtered. One of the feasible solutions is to use an intelligent filter based on fuzzy logic, which is a very flexible instrument. Applying intelligent filtering methodology, we can use some heuristic methods to solve the filtering problem.

• 한국정보디스플레이학회:학술대회논문집
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• 한국정보디스플레이학회 2009년도 9th International Meeting on Information Display
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• pp.968-971
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• 2009

TFT-LCD display system is nowadays one of power-hungry components in portable products; technique of power reduction is thus essential for production of mobile phone. In this work, we minimize the display power, using computationally intelligent statistical methodology. Compared with a conventional design, 68.474% reductions on the current consumption could be obtained for a 2.2-inch of TFT-LCD display system of mobile phone. The total power consumption of the display system consisting of the backlight system and current consumption of display panel is thus successfully reduced form 68.305mW to 64.06mW (about 6.215% reductions).

• 제어로봇시스템학회:학술대회논문집
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• 제어로봇시스템학회 2003년도 ICCAS
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• pp.2753-2758
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• 2003

Tactile sensation is essential for many manipulation and exploration tasks not only in a real environment but also in a virtual environment. In this paper, we discuss a conceptual design of an integrated tactile display system. The system comprises two parts: a 2 DOF force feedback device for kinesthetic display and a tactile feedback device for displaying the normal stimulation to skin and the skin slip/stretch. Psychophysical experiments measure the effects of fingerpad selection, the direction of finger movements and the texture width on tactile sensitivity. We also investigate characteristics of lateral finger movement while subjects perceive different textures. From the experimental results, the principal parameters for designing a tactile display are suggested. A tactile display device is implemented using eight piezoelectric bimorphs and a linear actuator, and is attached to a 2 DOF translational force feedback device to simultaneously simulate texture and stiffness of the object.

• 한국지능시스템학회:학술대회논문집
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• 한국퍼지및지능시스템학회 2007년도 춘계학술대회 학술발표 논문집 제17권 제1호
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• pp.135-138
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• 2007

In this paper, intelligent filtering methodology for masterarm translation signal is proposed. Fidelity and stability are contradicting factors in teleoperation. Human hand trembling filtering is one of the problems in telemanipulation field. During every operation the hand has a certain vibration that can affect the quality of teleoperation, especially in carrying FPD (Flat Panel for Display), nanomanipuation and other precise tasks. It is very important to study the kinesthetic perception of the human and to optimize the teleoperation system accordingly. To cancel out the influence of human's hand vibration the signal from the masterarm should be filtered. One of the feasible solutions is to use an intelligent filter, which is a very flexible instrument. Applying intelligent filtering methodology, we can use some heuristic methods to solve the filtering problem.

• International Journal of Fuzzy Logic and Intelligent Systems
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• 제2권2호
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• pp.127-132
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• 2002

In this paper, a new method for displaying a surface deformation is proposed using the fuzzy model. In the proposed method, it is enough that only one rule is added to the fuzzy model to display a surface deformation. Furthermore, designer can easily determine which parameters should be used and how much they should be changed in order to alter shapes as they want. The proposed method is, thus, a simple, but effective technique that can also be applied to real time operation. The results of the computer simulation are also given to demonstrate the validity of the proposed algorithm.

• 대한전자공학회논문지
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• 제16권2호
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• pp.1-6
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• 1979

본 논문에서는 computer제어에 의한 한글문 편집 system의 개발에 관해 논한다. 한글의 24기본자수로서 문자를 합성하고, 영숫자를 혼용한 문장의 editing이 간단히되는 편집 system을 minicomputer에 실현시켜, 한글 입출력용 terminal의 지능화의 가능성을 밝힌다. 나아가서, microprocessor와 CRT-display를 이용하여 값싸고 고기능을 발휘하는 system, HIT(Hanguel-Intelligent-Terninal)의 구성예를 보인다.

• 한국기계가공학회지
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• 제13권6호
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• pp.145-151
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• 2014

The glass used for mobile display windows is required to have high strength. Chemical strengthening by means of ion exchange is widely used glass. The depth of the layer and the compressed stress are affected by tempering temperature and time. The purpose of this study is to investigate the range of DOL and CS, which to less breakage during reliability tests such as the ball drop test, hole drop test, 3-point bending test, drop test, and tumble test with Soda-lime Glass.

• 반도체디스플레이기술학회지
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• 제20권3호
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• pp.161-166
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• 2021

To prevent accidents caused by changes in the surrounding environment or other factors, various protection facilities are installed at the photovoltaic connection module. The main causes of fire are sparks due to foreign substances inside the photovoltaic connection module through high temperature rise and dew condensation in the photovoltaic connection module, and fire due to heat from the power diode. The proposed method can predict the fire by measuring flame, carbon dioxide, carbon monoxide, temperature, humidity, input voltage, and current on the photovoltaic connection module, and when the fire conditions are reached, fire alarm and power off can be sent to managers and users in real time to prevent fire in advance.

• 한국지능시스템학회논문지
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• 제25권3호
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• pp.260-265
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• 2015

본 논문은 에지 특징을 이용한 얼라인 시스템을 제안한다. 얼라인 시스템은 PCB나 LCD 패널 등에 새겨진 기준 마크(fiducial mark)를 통하여 위치 정보를 획득한다. 그러므로 획득한 영상에서 정확하게 기준 마크를 찾는 것이 얼라인 시스템 성능의 지표가 된다. 에지 특성은 위치, 길이, 형태 등의 기하학적 특징을 지니며 이런 특징은 기준 마크를 찾기 위해 적절하고, 밝기의 변화, 크기 및 각도의 변화에 강한 특성을 지닌다. X, Y 축 이동 및 회전 할 수 있는 장비와 소프트웨어을 이용한 얼라인먼트 실험을 통하여 제안한 시스템의 성능을 검증하였다.