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pISSN : 2092-8114 / eISSN : 2733-4384

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2018, Vol.14, No.1

  • 1.

    A Study on Issue for Combination with Copyright ADR and SW Appraisal

    Kim, Si Yeol | 2018, 14(1) | pp.1~7 | number of Cited : 0
    Abstract PDF
    In process of copyright mediation, the parties hesitate to take adventage of SW appraisal system of Copyright Law. In this paper, we analyze obstacle factor and come forth with some solution in order to solve a dilemma issue. Specifically, we need to improving an public function of sw appraisal, and it should be permitted to make an exception in invoking products. Otherwise, I was concerned about choosing as evidence, adopting simplicity appraisal.
  • 2.

    Machine Learning based Open Source Software Category Classification Model

    백승찬 , Hyun-Jae Choi , Ho-Yeong Yun and 2 other persons | 2018, 14(1) | pp.9~17 | number of Cited : 0
    Abstract PDF
    In many respects, the use and importance of open source software in companies and individuals are increasing as the days pass. However, software evaluation for users, software classification of filtering fundamentals research can not deal flexibly according to the characteristics of open source software. They are using a fixed classification system. In this research, we provide a classification model of open source software that can flexibly deal with the classification of open source software and the software category of new open source software.
  • 3.

    A Study on the Controlling Brightness of Dynamic LED Display by Software

    KWON SUNG YEOL , Lee HyunChang | 2018, 14(1) | pp.19~25 | number of Cited : 0
    Abstract PDF
    In this paper, the method of controlling brightness for dynamic LED display by the software algorithm is proposed. Proposed method controls the brightness by software without additional hardware of dynamic driving, and it can take advantages of PWM control as it controls likely PWM. In order to verify the effectiveness of proposed software algorithm, experimental dynamic display circuit is designed, and realized the software algorithm for 4-step brightness control. Experimental results show that proposed software algorithm can control the brightness of dynamic LED display without additional hardware.
  • 4.

    A Similarity of device driver on Embedded system

    LEE KYU TAE | 2018, 14(1) | pp.27~32 | number of Cited : 4
    Abstract PDF
    Copyright evaluation is the work of judging the similarity between the product of the original developer and works suspected of duplication. In order to keep the fair and objective verification, the developer and the developer's object should be submitted, but in most cases, it is difficult to compare one-on-one with the unfair disclosure of data by the suspect. In particular, in the case of an embedded system, a kernel of the Linux OS is mounted and an application program is made to be executed using the device driver. When such a system is duplicated, evaluation results can not be obtained by the conventional comparison method, the difference of the operating system, and the structural difference of the program according to the nguage used make analysis difficult. By this reason, the similarity comparison result is different because of the high proportion of open programs. In this paper, we compare and analyze the kernel source and device driver of two products.
  • 5.

    Electronic Demand Data Prediction using Bidirectional Long Short Term Memory Networks

    Ko Sangjun , Ho-Yeong Yun , Dong-Myung Shin | 2018, 14(1) | pp.33~40 | number of Cited : 7
    Abstract PDF
    Power demand prediction is used to detect anomalies such as machine malfunction and power off when the measured power amount deviates from the predicted power amount by a certain range in the industrial sector. Power data is difficult to predict because it is time series data with strong seasonality and trend. In this paper, a power prediction model based on bi-directional LSTM algorithm, which is a deep learning based algorithm and the most popular algorithm in recent years, has been established along with LSTM. The model was learned, evaluated, and verified using four years of power data.
  • 6.

    Development of Simulation Software for Switch Connection

    Jang-Geun Ki , Kwon Kee Young | 2018, 14(1) | pp.41~46 | number of Cited : 3
    Abstract PDF
    There have been lots of researches about dynamic network configuration to support various needs and requirements of future Internet services as well as SNS services which is getting more popular these days. In this paper, development of software environments is described to virtually simulate the control architecture of switching elements that are necessary to dynamically configure the networks. The developed software environments are run to show the effectiveness to study dynamic network configuration schemes for future Internet application services.
  • 7.

    Multi-Clock Generator with Duty-Cycle Correction

    유병재 , HYUNMOOK CHO | 2018, 14(1) | pp.47~53 | number of Cited : 0
    Abstract PDF
    In this paper, we introduce the clock duty correction circuit (DCC), which is a core technology of the clocking circuit required for high-speed SoC. The problem of the conventional non feedback DCC which has mismatch of the XOR and the phase inversion by the initial value is explained, and a new structure of the non feedback DCC circuit is proposed. The proposed DCC circuit has the advantage of using less circuit area compared to the conventional non feedback DCC circuit.
  • 8.

    Auxiliary data communication method utilizing the idle time of main channel for high speed data communication

    유병재 , LEE KYU TAE , HYUNMOOK CHO | 2018, 14(1) | pp.55~61 | number of Cited : 0
    Abstract PDF
    In the case of the high-speed serial data transmission method, the unidirectional main channel is mainly used. However, in order to overcome the disadvantages of this method, an auxiliary channel capable of bidirectional communication is used. In this paper, we propose a method to maintain the clock of the sink to serve as the auxiliary channel by utilizing the idle time of the main channel, and also propose a bidirectional communication technique using this method. During idle time, the sink's clock-retention device is used to send data to the source and the source can detect the data with the over-sampling technique. As a result, this approach can reduce the EMI / EMC and does not require additional circuit area and power consumption.