• 산업기술연구
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• 제3권
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• pp.39-46
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• 1983

This paper presents a quantitative measure of the degree of part commonality and redundancy in a product line based on entropy measure of information theory. The several possible methods of analysis are discussed and the use of the entropy measure is discussed. These commonality and redundancy measure can be applied to analyze the usage pattern of part across a product line and to determine which parts have the broadest usage across the firm's product lines. An analysis of the results by entropy statistics is compared with the practical part usage in a simulation of several types of part usage's distributions.

• 디지털융복합연구
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• 제7권4호
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• pp.101-115
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• 2009

This paper aims to examine the impact of R&D organization culture(diversity, autonomy, redundancy and connectivity) to Organizational Commitment and Organizational Citizenship Behavior in Information Technology Companys. Hypotheses were tested by surveying 250 employees at R&D Gumi Industrial Complex. The findings of research are as follows : First, three factors of R&D organizational culture had a significant positive effect on the organizational commitment except redundancy. Second, two factors of organizational culture in R&D organizational culture had a significant positive effect on the organizational citizenship behavior except autonomy and redundancy. it is shown reliable criterion to effective organizational management in small and medium enterprises.

• JSTS:Journal of Semiconductor Technology and Science
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• 제12권3호
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• pp.266-269
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• 2012

High-efficiency built-in redundancy analysis (BIRA) is presented. The proposed BIRA uses three techniques to achieve a high repair rate using spare mapping registers with adjustable fault tags to reduce area overhead. Simulation results show that the proposed BIRA is a reasonable solution for embedded memories.

• 대한전자공학회:학술대회논문집
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• 대한전자공학회 2003년도 신호처리소사이어티 추계학술대회 논문집
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• pp.537-540
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• 2003

In this paper, we evaluated error correction performance and recording density of an optical disc system. The performance of Low-Density Parity Check code (LDPC) is compared to the HD-DVD (BD) ECC. The recording density of optical disc can be increased by reducing the redundancy of the user data. Moreover, since the correction capability of LDPC with decreased redundancy is better than that of BD, the recording density can also be increased by reducing the mark length of the data on the disc surface.

• 대한전자공학회:학술대회논문집
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• 대한전자공학회 2003년도 하계종합학술대회 논문집 Ⅳ
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• pp.1920-1923
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• 2003

This paper presents compression rate improvement for SPIHT algorithm though redundancy bit removing. Proposed SPIHT algorithm uses a method to select of optimized threshold from feature of wavelet transform coefficients and removes sign bit if coefficient of LL area. Experimental results show that the proposed algorithm achieves more improvement bit rate and more fast progressive transmission with low bit rate.

• 한국신뢰성학회:학술대회논문집
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• 한국신뢰성학회 2000년도 춘계학술대회 발표논문집
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• pp.247-253
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• 2000

본 논문은 정보 여분(Information Redundancy)에서의 에러 검출 코딩(Error Detect Coding) 기법을 이용하여 3-out-of-6 자체 검사기를 설계하고, 주기적인 코드(Frequency Coding) 주입을 통해 고장-안전 제어 논리를 모델링 했다. 고장-안전 제어 논리 모듈과 TMR(Triple Modular Redundancy)의 단일 모듈간에 대해서 신뢰성 병렬 수치 해석을 수행하였고, 이때 고장-안전 제어 논리가 기존의 하드웨어 여분 기법보다 시스템 소모비용과 기능적 오버헤드가 감소되어 기능신뢰성이 증가되는 결과를 얻었다.

• 대한전자공학회:학술대회논문집
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• 대한전자공학회 2002년도 하계종합학술대회 논문집(1)
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• pp.247-250
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• 2002

It is predicted that the existing backbone network has encountered its limit due to massive growth in data traffic. Perhaps new WDM methods utilizing optical fibers are desirable. Also to assure reliance of the network detour routes fur collision recovery must be considered. But due to the redundancy occurred by allocating bandwidths to the detour route, the efficiency of the link my decline. In this paper, we designed a detour route to minimize the redundancy.

• Journal of information and communication convergence engineering
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• 제12권1호
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• pp.8-13
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• 2014

We consider the sensor selection problem in large sensor networks where the goal is to find the best set of sensors that maximizes application objectives. Since sensor selection typically involves a large number of sensors, a low complexity should be maintained for practical applications. We propose a geometry-based sensor selection algorithm that utilizes only the information of sensor locations. In particular, by observing that sensors clustered together tend to have redundant information, we theorize that the redundancy is inversely proportional to the distance between sensors and seek to minimize this redundancy by searching for a set of sensors with the maximum average distance. To further reduce the computational complexity, we perform an iterative sequential search without losing optimality. We apply the proposed algorithm to an acoustic sensor network for source localization, and demonstrate using simulations that the proposed algorithm yields significant improvements in the localization performance with respect to the randomly generated sets of sensors.

• 한국통신학회논문지
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• 제18권1호
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• pp.83-91
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• 1993

디지틀 전송 시스팀에서 순방향 에러 제어(Forward Error Control) 방식으로 에러를 검출할 수 있는 성능과 구현의 용이함에 의해 Cyclic Redundancy Chedk(CRC) code가 널리 사용도고 있다. 즉, 간단한 몇개의 shift register와 modulo2 가산기를 이용하여 회로를 구성하고 입력 데이터 열을 직렬로 입력하면 최종적으로 shift register에 남아 있는 값이 CRC code가 되어 입력 데이터 열을 전송한 뒤 shift register의 값들을 순차적으로 전송하는 방식으로 전성 사의 에러를 검출하고 수정한다. 그러나 전송속도가 높아짐에 따라 직렬 데이터를 이용하여 CRC code를 생성하는 회로를 구현하는 것은 반도체 소자의 속도 제약 때문에 많은 어려움이 따른다. 따라서 본 논문에서는 주문형 반도체 개발시 반도체 소자의 속도 제약 문제를 해소하기 위하여 입력데이터 열을 병렬로 입력하여 직렬로 수행하는 방식과 동일한 방식으로 동작하는 병렬 CRC code 생성방식 및 syndrome 계산방식을 제안하였다.

• 한국통신학회논문지
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• 제29권9A호
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• pp.1101-1107
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• 2004

본 논문은 통신 시스템에서 오류 검출을 위해 널려 사용되고 있는 Cyclic Redundancy Check (CRC) 회로의 병렬 구현을 위한 새로운 회로 축소 알고리즘 및 설계 기술을 소개한다. 논리 수준을 최소화하여 CRC 속도를 증진시키기 위해서 입력데이터와 CRC 내부 신호를 두 개 단위로 그룹화 하는 새로운 알고리즘을 개방하였다 성능 평가를 위해 16 비트와 32 비트 CRC 를 PLD (Programmable Logic Device) 및 표준 셀 라이브러리를 이용하여 합성하였으며, 기존에 제시되었던 방법보다 성능이 향상되었음을 보여준다.