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元忠常 忠州大學校 1987 한국교통대학교 논문집 Vol.21 No.-
In this paper I have made Hangul text file by hangul word processor and to convert the file into braille I devised Hangul braille code. For further braille code file I presented algorithm that segregates initial phoneme, medial phoneme, and final phoneme from 2-byte Hangul system.
元忠常 忠州大學校 1984 한국교통대학교 논문집 Vol.17 No.1
In this study, two-dimension hamming code has been applied in detection and correction multi bit error on the binary string. Condition of multi bit errors is divided into 5 types, and correction measures are provided for each type, and each measure is programmed to correct the input data.
元忠常 忠州大學校 1995 한국교통대학교 논문집 Vol.30 No.2
This paper describes a development of the PLD design tool. To design digital circuit with PLDs, several steps in the developed PLD design tool are needed such as Boolean description step, pin map step, FUSE map and JEDEC steps…etc. Especially, we have considered the PLD partition to design large digital circuits with PLDs developed the limited partition algorithms based on the PLD device fitting and compared with the results of a another PLD design tool(PALASM). Also, we have proved that the developed PLD design tool is successfully implemented by the connection with a PLD writer (ALL-07), in the case of design digital circuits.
Graph clustering 알고리즘을 이용한 High-level 라이브러리 맵핑에 관한 연구
원충상,전종식 충주대 산업과학기술연구소 1998 産業科學論文集 Vol.6 No.-
In this paper, We propose Graph clustering algorithm uses RT level functional behavior to perform mapping of a Source component onto another Target component of similar complexity, The technique is well-suited for mapping regularly-structured datapath components. We demonstrate the HLLM approach on ALUs components. Our experimental results demonstrate the comprehensiveness and efficacy of the HLLM approach in mapping RT components. We describe the GENUS library environment and a user-interface in the HLLM system for performing RT level design.
元忠常 忠州大學校 1982 한국교통대학교 논문집 Vol.15 No.1
It has been studied on the detect and correct of errors occurring in the Process of Keeping and handling of data with the development in data communication field and data base field. Especially, the errors on the process of reception and transmision in data communication field are effective when they are detected and corrected immediately. The writer tried to convert the data using u-processor into Hamming code, and tried to find out the way which can revert the Hamming code to be received to the original data by detecting the presence of the errors and correcting them immediately. The writer concentrated on the drawing up of encoding program and detecting program.
體積 Code에 의한 復數 Bit Error의 檢出과 較正에 관한 硏究
元忠常 忠州大學校 1985 한국교통대학교 논문집 Vol.19 No.1
In this paper 2 - dimensional code has been applied in detection and correction of multi bit error on the source data string. This paper presents cubic code method for the errors not corrected by 2 - dimensional code method and several corrected examples.
원충상 忠州大學校 2007 한국교통대학교 논문집 Vol.42 No.-
This study investigates the most efficient way of managing traffic signal system by installing 2 sensors on both lanes of each direction. In order to achieve efficiency of traffic, these sensors are devised to sense flows of traffic on each lane. If the sensor on one side of the lane. senses no traffic, it deems that there is no traffic in waiting, and it skips green light and proceeds to the next direction. If only front sensor senses traffic, it gives short signal, and if both sides of sensor sense traffic, it is devised to give long signal, in order to maximise the efficiency of traffic flow. In this study, a multi-signal generating circuit and a variable clock signal switching circuit were designed for simulations, and result from the simulation was found satisfactory
원충상 忠州大學校 2002 한국교통대학교 논문집 Vol.37 No.3
Generally, digital circuit has been designed on the basis that the result by simulated by the arranged tool for plan. In other words, for simulations gate or library sent by IC Cooperation is connected through the schematic editor and the necessary signals for input such as clock signal are supplied. In this way they study the result of simulation. But in this study I found out a new simulation method which is more efficient than the older one in the past. I put a state diagram and state table into tool for design in order to avoid the complexity of circuit input such as combination logic circuit or sequential logic circuit. Then, symbols produced in this way were applied to the schematic editor for simulation.
元忠常 충주대 2001 한국교통대학교 논문집 Vol.36 No.2
For the purpose of the traffic smoothness of the crossroad, this paper construct a car sensor, that classify the heavy traffic direction into the smoothness direction, in the smoothness direction. If the sensor sense no signal the traffic continuously in the heavy traffic. Therefore the traffic increment efficiently.And using by the Generic Array Logic device, we design the traffic controller with small size and economically.
필터프레스를 위한 영상 원격 제어 시스템 개발에 관한 연구
원충상,최영규 忠州大學校 2012 한국교통대학교 논문집 Vol.47 No.-
Existing, widely used industrial controller programmable logic controller (PLC) using the high cost and maintenance was a difficult problem. In addition, the network configuration was not easy. Thus, the filter press by video remote control and management to improve productivity and shorten maintenance time. Variety of smart devices (smart phones, iPad, tablet PC, etc.) Remote control is possible by utilizing the existing controlled by the PLC addresses maintenance and improved performance compared to that of possible filter press control and management system was developed.