• Title, Summary, Keyword: Preprocessor

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A Study On Bar-Code Signal Processing System (바-코드 신호처리 시스템에 관한 연구)

  • Ihm, J.T.;Eun, J.J.;Park, H.K.
    • Proceedings of the KIEE Conference
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    • pp.61-63
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    • 1987
  • In this paper, we develope a system which can perform signal processing for bar-code laser scanner. This system is composed of optical detector and preprocessor. The former detects the diffused light and converts it into TTL lebel output. The latter discriminator valid data from various raw data and transmits data to micro-processor. The preprocessor consists of edge transition detector, latch signal generator, module counter, register array, adder array, and buffer memory control circuit etc..

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FUZZY Logic-Based Fast Gain Scheduling Control Using Fuzzy Preprocessor

  • Lee, Seon-Ho;Kim, Sung-Gyu;Zeungnam Bien
    • Proceedings of the Korean Institute of Intelligent Systems Conference
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    • pp.73-76
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    • 1997
  • This paper proposes the fuzzy logic-based fast gain scheduling(FFGS) controller for regulation problem in nonlinear systems. It utilizes which reflects the derivative information on the original scheduling variable in order to achieve better performance than the existents. Moreover, we apply the proposed control scheme to control active suspension systems with nonlinear components.

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Parametric Modeling Technique in OPERA-3d Preprocessor (OPERA-3d 전처리기에서의 변수화 모델링 기법)

  • Lim, In-Taek;Lee, Sang-Jin
    • Proceedings of the KIEE Conference
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    • pp.214-216
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    • 1998
  • Parameterizing a model is one of the most efficient ways of conducting "virtual prototying" i.e. exploring the "What if?" scenario. But it is very difficult to construct parameterized models in commercial based FEM programs, because they usually adopt the mouse inputs in their GUI, which cannot be parameterized. We consolidated a parametric modelling technique in OPERA-3d preprocessor, which is one of world leading electromagnetic analysis programs, by combining the mouse inputs in GUI with it's FORTRAN-based self script command language.

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ESTELLE Preprocessor의 설계 및 구현

  • In, So-Ran;Gwak, Ho-Yeong
    • ETRI Journal
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    • v.9 no.3
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    • pp.22-32
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    • 1987
  • 본고는 FDT(Formal Description Technique)에 속하는, 통신 프로토콜의 규격기술에 사용되는 기법언어인 ESTELLE 언어를 대상으로 이를 5-PASCAL로 전환해주는 preprocessor의 설계 및 구현에 대한 연구결과이다. ESTELLE의 특성은 상태전이 처리 측면에 concurrent 개념을 지니고 있다. 가장 최적화된 방법으로는concurrent 개념을 모두 수용해주는 H/W와 S/W환경이 구비된 조건에서 concurrent 언어로 전환하는 것이 타당하나 본 고에서는 ESTELLE 언어와 구성상 유사한 PASCAL 중 sequential PASCAL을 target 언어로 하였다.

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A Study on the Development and Maintenance of Embedded SQL based Information Systems (임베디드 SQL 기반 정보시스템의 개발 및 관리 방법에 대한 연구)

  • Song, Yong-Uk
    • The Journal of Information Systems
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    • v.19 no.4
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    • pp.25-49
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    • 2010
  • As companies introduced ERP (Enterprise Resource Planning) systems since the middle of 1990s, the databases of the companies has become centralized and gigantic. The companies are now developing data-mining based applications on those centralized and gigantic databases for knowledge management. Almost of them are using $Pro^*C$/C++, a embedded SQL programming language, and it's because the $Pro^*C$/C++ is independent of platforms and also fast. However, they suffer from difficulties in development and maintenance due to the characteristics of corporate databases which have intrinsically large number of tables and fields. The purpose of this research is to design and implement a methodology which makes it easier to develop and maintain embedded SQL applications based on relational databases. Firstly, this article analyzes the syntax of $Pro^*C$/C++ and addresses the concept of repetition and duplication which causes the difficulties in development and maintenance of corporate information systems. Then, this article suggests a management architecture of source codes and databases in which a preprocessor generates $Pro^*C$/C++ source codes by referring a DB table specification, which would solve the problem of repetition and duplication. Moreover, this article also suggests another architecture of DB administration in which the preprocessor generates DB administration commands by referring the same table specification, which would solve the problem of repetition and duplication again. The preprocessor, named $PrePro^*C$, has been developed under the UNIX command-line prompt environment to preprocess $Pro^*C$/C++ source codes and SQL administration commands, and is under update to be used in another DB interface environment like ODBC and JDBC, too.

Development of Integrated Software for Optimum Design (C언어를 사용한 최적설계 통합코드)

  • Lim, O-Kang;Cho, Heon;Kim, Sung-Tae;Lee, Byung-Woo
    • Computational Structural Engineering
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    • v.9 no.3
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    • pp.157-167
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    • 1996
  • A graphics system for optimum design(GOD) was developed for the various optimization programs. It is composed of a preprocessor and a postprocessor using the methods of pull-down and pop-up menus. The preprocessor of GOD system helps the designer to make a input file or a subprogram according to a selected optimization program. The postprocessor of the system display the numerical results generated during the iterative numerical analysis processes graphically in the graphic mode. Numerical examples as a mathematical linear problem and a 3-bar truss structure are presented to explain the use of GOD system. The system was programmed in one of the computer programming languages, Borland C.

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Java Preprocessor for Integration of Java and C (자바와 C 언어 결합을 위한 자바 전처리기)

  • Yi, Chang-Hwan;Oh, Se-Man
    • Journal of Korea Multimedia Society
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    • v.10 no.4
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    • pp.537-547
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    • 2007
  • According evolution of computer technology, computers execute complex and several tasks. Because of the complexity of program and restriction of programming language, applications are implemented using one more programming language. But it is no general methodology for using several languages and implementing it. This paper classified usages of programming language integration and methodology for implements programming languages integration through HLID(Heterogeneous Language Integration Degree) for solving above problem. And using HLID, it designed and implemented Java Preprocessor that improvement JNI-current implementation for integration between object-oriented language Java and procedural language C.

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Development of Preprocessor Program for Articulated Total Body

  • Lee, Dong-Jea;Son, Kwon;Jeon, Kyu-Nam;Choi, Kyung-Hyun
    • 제어로봇시스템학회:학술대회논문집
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    • pp.69.5-69
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    • 2001
  • Computer simulations are widely used to analyze passenger safety in traffic accidents. ATB(articulated total body) is a computer simulation model developed to predict gross human body response to such dynamic environments as vehicle crashes and pilot ejections. ATB, whose code is open, has high flexibility and application capability that users can easily insert defined modules and functions. ATB is, however, inconvenient as it was coded in FORTRAN and it needs a formatted input file. Moreover, it takes much time to make input files and to modify coding errors. This study aims to increase user friendliness by adding a preprocessor program, WINATB(WiNdow ATB), to the conventional ATB. WINATB programmed in Visual C++ and OpenGL uses ATB IV as a dynamic solver ...

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A Speaker Change Detection Experiment that Uses a Statistical Method (통계적 기법을 이용한 화자변화 검출 실험)

  • Lee, Kyong-Rok;Kim, Jin-Young
    • Speech Sciences
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    • v.8 no.4
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    • pp.59-72
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    • 2001
  • In this paper, we experimented with speaker change detection that uses a statistical method for NOD (News On Demand) service. A specified speaker's change can find out content of each data in speech if analysed because it means change of data contents in news data. Speaker change detection acts as preprocessor that divide input speech by speaker. This is an important preprocessor phase for speaker tracking. We detected speaker change using GLR(generalized likelihood ratio) distance base division and BIC (Bayesian information criterion) base division among matrix method. An experiment verified speaker change point using BIC base division after divide by speaker unit using GLR distance base method first. In the experimental result, FAR (False Alarm Rate) was 63.29 in high noise environment and FAR was 54.28 in low noise environment in MDR (Missed Detection Rate) 15% neighborhood.

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Robust Speech Detection Using the AURORA Front-End Noise Reduction Algorithm under Telephone Channel Environments (AURORA 잡음 처리 알고리즘을 이용한 전화망 환경에서의 강인한 음성 검출)

  • Suh Youngjoo;Ji Mikyong;Kim Hoi-Rin
    • MALSORI
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    • no.48
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    • pp.155-173
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    • 2003
  • This paper proposes a noise reduction-based speech detection method under telephone channel environments. We adopt the AURORA front-end noise reduction algorithm based on the two-stage mel-warped Wiener filter approach as a preprocessor for the frequency domain speech detector. The speech detector utilizes mel filter-bank based useful band energies as its feature parameters. The preprocessor firstly removes the adverse noise components on the incoming noisy speech signals and the speech detector at the next stage detects proper speech regions for the noise-reduced speech signals. Experimental results show that the proposed noise reduction-based speech detection method is very effective in improving not only the performance of the speech detector but also that of the subsequent speech recognizer.

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