• 대한전기학회:학술대회논문집
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• 대한전기학회 2002년도 합동 추계학술대회 논문집 정보 및 제어부문
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• pp.264-267
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• 2002

This paper proposed a effective priority selection algorithm named weighted round-robin algorithm and show the implementation result of DMAC priority selection module using prosed weighted round-robin algorithm. I parameterize timing constraints of each functional module, which decide the effectiveness of system. Proposed weighted round-robin algorithm decide the most effective module for data transmission using parameterize timing constraints and update timing parameter of each module for next transmission module selection. I implement DMAC priority selection module using this weighted round-robin algorithm and can improve the timing effective for data transmission from memory to functional module or one functional module to another functional module.

• 전기학회논문지P
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• 제54권4호
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• pp.203-210
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• 2005

In this paper, a multi-functional control module is developed to improve the confidence of $CO_2$ welding. In the developed system, a main controller of an automatic welding system including I/O port is modulated by microprocessor. The developed multi-functional control module is familiarized to the conventional automatic welding system. Therefore, the confidence of $CO_2$ welding is improved when the main controller of an automatic welding system is broken down.

• 대한전자공학회논문지SP
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• 제41권6호
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• pp.231-237
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• 2004

본 논문은 디지털 TV의 다양한 분야로의 확장을 위해서 디지털 TV에 접목하는 멀티미디어 부가기능 모듈 및 관련 인터페이스 개발에 관한 것이다. 이 부가기능 모듈은 디지털 TV 시스템에 장착되며 디지털 카메라, 캠코더, PC로 저장한 정지 영상을 TV 화면으로 디스플레이 해주는 기능을 수행한다. 본 시스템은 현재 디지털 카메라 등에서 널리 사용되고 있는 5 종류의 메모리 카드를 지원 하도록 하였으며 JPEG, BMP, TIFF의 3가지 영상 포맷을 지원한다. 또한 아날로그 RGB 출력으로 HD(High Definition)급부터 WXGA(Wide Extended Graphics Array) 급까지 지원하여 광범위한 디지털 TV 세트에 적용이 가능하다.

• 한국정보과학회논문지:시스템및이론
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• 제34권10호
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• pp.474-492
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• 2007

단백질 상호작용 네트워크는 생체 내에서 특정 역할을 담당하는 패스웨이나 복합체와 같은 중요한 의미의 많은 기능 모듈들을 포함하고 있다. 본 논문에서는 이 기능 모듈들과 정합될 수 있는 개념 모듈을 정의하고 이를 기반으로 원하는 기능 모듈들을 개념적으로 표현하고 효율적으로 탐색할 수 있는 새로운 방법을 제안한다. 개념 모듈은 트리플들과 이들 사이의 연산자로 이루어진 표현 규칙에 의해 정의 되며 탐색하고자 하는 기능 모듈들의 구조를 개념적으로 표현한다. 이 표현 규칙에서의 트리플은 한 기능 모듈을 구성하는 단백질들 사이의 구체적인 상호작용 관계를, 연산자는 트리플들 사이의 구조적인 연관 관계를 각각 개념적으로 정의한다. 또한, 사용자는 사전에 표현 규칙에 의해 잘 정의된 개념들을 조합하여 새로운 의미의 복합 개념 모듈을 정의할 수도 있다. 복합 개념 모듈은 복잡한 기능 모듈들의 개념적 구조를 보다 정교하게 표현할 수 있기 때문에, 사용자 탐색 질의의 의미적 표현력을 획기적으로 높일 수 있다. 정의된 규칙들은 XML로 관리될 수 있어 다른 종류의 단백질 상호작용 네트워크에서 사용자가 유사한 모듈들을 탐색하기 위해 쉽게 적용 가능하다. 본 논문에서는 또한, 구조적으로 복잡한 규칙들을 직관적으로 표현하고 효율적으로 탐색하기 위한 시각화된 질의 환경도 구현하였다.

• 대한전기학회:학술대회논문집
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• 대한전기학회 2005년도 학술대회 논문집 전문대학교육위원
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• pp.191-196
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• 2005

In this paper, a multi-functional control module is developed to improve the confidence of CO2 welding. In the developed system, a main controller of an automatic welding system including of I/O port is modulated by microprocessor. The developed multi-functional control module is familiarized to the conventional automatic welding system. Therefore, the confidence of CO2 welding is improved when the main controller of an automatic welding system is broken down.

• 경영과학
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• 제9권1호
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• pp.41-52
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• 1992

The QOS(Quality of Service) recognized by the customer will become the most important thing under the competitive telecommunications market. Korea Telecom is going to develop many system to manage the telecommunication network, to improve the level of QOS, and to increase the revenue. Operation and Maintenance Adiministration System is one of the systems developed to meet those purposes efficiently. This system gathers qualities data from telephone offices or operation centers and analyze the results of QOS improvement activities and evaluate overall QOS. And also system makes it possible to improve the cost/effectiveness of operation and maintenance of telecommunication network. Operation and Maintenance Administration System has four functional modules, i.e., the user interface module, the database management module, the QOS management module, and the database conversion module. The purpose of this study is to develop the QOS management program, one of the four functional modules of the system,using FOCUS 4GL/DBMS. Since Operation and Maintenance Administration System is developed using FOCUS 4GL, every user can handle and maintain the system very easily and reduce system backlogs.

• 대한전기학회:학술대회논문집
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• 대한전기학회 2006년도 심포지엄 논문집 정보 및 제어부문
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• pp.297-299
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• 2006

Many distributed applications is developed in various environment such as operating system, software platform. So, they exhibit different types of system behavior, status, during the course of their operation. Each such behavior may have different functional and non-functional requirements. Therefore, many distributed application need to fault-tolerance solution. Personal robot provide various service or application. Because personal robot has many application or service, it need to fault-tolerance architecture. A flexible architecture is required to provide dependability. In this paper, it is suggested a fault-tolerant architecture for module-based personal robot with module fault-tolerance, service fault-tolerance.

• 한국정밀공학회:학술대회논문집
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• 한국정밀공학회 1995년도 춘계학술대회 논문집
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• pp.457-462
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• 1995

This paper describes diagnosis strategy of the Flexible Multiple Fault Diagnosis Module for forecasting faults in system and deciding current machine state form sensor information. Most studydeal with diagnosis control stategy about single fault in a system, this studies deal with multiple fault diagnosis. This strategy is consist of diagnosis control module such as backward tracking expert system shell, various neural network, numerical model to predict machine state and communication module for information exchange and cooperate between each model. This models are used to describe structure, function and behavior of subsystem, complex component and total system. Hierarchical structure is very efficient to represent structural, functional and behavioral knowledge. FT(Fault Tree). ST(Symptom Tree), FCD(Fault Consequence Diagrapy), SGM(State Graph Model) and FFM(Functional Flow Model) are used to represent hierachical structure. In this study, IA(Intelligent Agent) concept is introduced to match FT component and event symbol in diagnosed system and to transfer message between each event process. Proposed diagnosis control module is made of IPC(Inter Process Communication) method under UNIX operating system.

• 대한수학회보
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• 제40권1호
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• pp.53-61
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• 2003

We prove the generalized Hyers-Ulam-Rassias stability of the invertible mapping in a Banach module over a unital Banach algebra, and prove the generalized Hyers-Ulam-Rassias stability of the Jensen's functional equations in a Hilbert module over a unital $C^{*}$-algebra.

• ETRI Journal
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• 제25권5호
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• pp.328-336
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• 2003

Bluetooth is a specification for short-range wireless communication using the 2.4 GHz ISM band. It emphasizes low complexity, low power, and low cost. This paper describes an area-efficient digital baseband module for wireless technology. For area-efficiency, we carefully consider hardware and software partitioning. We implement complex control tasks of the Bluetooth baseband layer protocols in software running on an embedded microcontroller. Hardware-efficient functions, such as low-level bitstream link control; host controller interfaces (HCIs), such as universal asynchronous receiver transmitter (UART) and universal serial bus (USB)interfaces; and audio Codec are performed by dedicated hardware blocks. Furthermore, we eliminate FIFOs for data buffering between hardware functional units. The design is done using fully synthesizable Verilog HDL to enhance the portability between process technologies so that our module can be easily integrated as an intellectual property core no system-on-a-chip (SoC) ASICs. A field programmable gate array (FPGA) prototype of this module was tested for functional verification and realtime operation of file and bitstream transfers between PCs. The module was fabricated in a $0.25-{\mu}m$ CMOS technology, the core size of which was only 2.79 $mm{\times}2.80mm$.