상․하향통신을 이용한 CATV 자동화 장치구현

곽윤식 忠州大學校 2003 한국교통대학교 논문집 Vol.38 No.3

This study is about the development of a system related to the CATV network. It intends to develop an automatically centralized Headend system and a distributive system to remove the ineffectiveness of the established manual system. To achieve this goal, we took a part of bandwidth, which is not used for the transmission of video signals in the established frequency bandwidth, and used it for the transmission and receiver of controlling signals. By this way we could design a system of transmission and receiver and a automatic distributive system. We developed an information management system for the 9600bps CATV using RS-232 of forward/backward communication and backward communication.

USB기반 플래쉬 메모리 및 카드 시뮬레이터 구현

郭允植,金東賢,申弼順 충주대 산업과학기술연구소 2001 産業科學論文集 Vol.9 No.-

In this paper, we present a simulator of flash memory and its card which using USB controller named GDS30C6001. GDS30C6001 for system implementation is a interface controller of MMC and SSFCD card which operated with limit speed 12Mbit/s in USB Ver.1.1 and under circumstances windows 95, 98 and Mac Os 8.1. Using this controller, we implemented functional design such as automatic reading, memory block read/write, memory dump and file property of 8M/16M flash memory and 32M SMC. And with this results, we could effectively process the system design and debugging.

T33521에 대한 사용자 인터페이스 설계

곽윤식 忠州大學校 2002 한국교통대학교 논문집 Vol.37 No.3

In this paper, We present a design method for the User Interface. The system implementation for T33521 is a interface controller of MMC and SSFCD card which operated with limit speed 12Mbit/s in USB Ver.1.1 and under circumstances windows 95, 98 and Mac Os 8.1. Using this controller, we implemented functional design such as automatic reading, memory block read/write, and file property of 8M/16M flash memory and 32M SMC.

한글 영상의 형태보존을 위한 지식기반 세선화 알고리즘

郭允植 忠州大學校 1994 한국교통대학교 논문집 Vol.29 No.2

One common defeat of Thinning Algorithm is deformating at crossing region. It is important in printed Hangul Image. In this paper, to solve this problem, a new thinning Algorithm, called the Thinning Algorithm using Knowledge Based, is proposed. It firstly represents a binary image by coded Run-Lengths of the horizental line segment. Then the relationship between line segments is described quantitatively by parameters which make use of both Forward and Backward Derivatives. It afterwards identifies the basic patterns, then extracts their shape features and thins all of them. Based on knowledge for basic pattern, perfect skeletons can be obtained. Other regions are thinned by an existing Thinning Algorithm. As the experiment result, showing this new technique generates better skeletons than other well-known algorithms.

自己相關函數를 利用한 畵質 測定에 關한 硏究

郭允植 충주대학교 1997 한국교통대학교 논문집 Vol.32 No.2

In this paper, we aims to extract the relationship between the directional charateristics and quanlity for fingerprint image. In order to do it, we trasformed the original images into directional images and set up the subimage size of 16,32,64 and directions of 1,2,3,4. Then we extracted the accunulated directional value as a measurement of quality for the type of whorl,loop,and arch fingerprint images. By using the clustering algorithm,we performed the process of analysis of the result Finally,we could extract the optimal subimage size and directional characteristics for fingerprint image.

인터넷디스크 기반의 개선된 하이브리드 웹솔루션 시스템

곽윤식 충주대학교 2006 한국교통대학교 논문집 Vol.41 No.-

본 논문은 인터넷 디스크를 기반으로 한 하이브리드 웹 솔루션에 관한 것으로. 기존의 인터넷 디스크를 기반으로 한 웹 솔루션의 한계성을 극복하였다. 즉 사용자 단말기의 한계성을 극복하여 PC를 비롯한 모바일 장치가 공유의 메모리를 엑세스 가능하도록 설계되었으며 하이브리드 형식의 혼합형 컨텐츠 서비스가 가능하고, 실시간 서비스가 가능하다. 또한 본 시스템의 경우 기존의 단일 서비스에서 벗어나 복합서비스를 제공할 수 있는 메커니즘을 구축하였다. 이를 통해 웹하드와 메일서비스, 블로그서비스과 같은 하이브리드 서비스를 제공할 수 있도록 인터넷 디스크 및 파일시스템을 설계, 구현하였다. The preference of mobile device using wireless network has recently increased due to a wider spread of smart phone using wireless LAN (Local Area Network). Under these circumstances that wireless network is frequently used, the value of mobile device has also increased for its mobility and conveniency. On the other hand, because of a limit to the storage capacity of the mobile device, it has limited capacity in its applications as well as toward such large volume data as moving pictures. For this reason, there has been a lot of research to expand the storage capacity of mobile device. However, the storage card devices that can be attached to mobile device are still highly expensive. In addition, the technology has been suggested that the internet disk, which is the large volume storage in the desk-top system, can be used for mobile device. But this technology does not go beyond that of up-loading and down-loading. These established technologies do not resolve the problem of short storage capacity, but simply make it possible to share data. In other words, it goes further beyond up-loading and down-loading; it recognizes a remote storage as a storage card and eventually resolves the storage problem. Also, it works in a way that one storage system is applied to many different devices, which makes it possible to share data and thereby keep the coherence.

CATV망의 통합관리를 위한 시스템 구현

郭允植 충주대 2003 産業科學論文集 Vol.11 No.-

This study is about the development of a system related to the CATV network. It intends to develop an automatically centralized Headend system and a distributive system to remove the ineffectiveness of the established manual system. To achieve this goal, we took a part of bandwidth, which is not used for the transmission of video signals in the established frequency bandwidth, and used it for the transmission and receiver and a automatic distributive system. We developed an information management system for the 9600bps CATV using RS-232 of forward/backward communication and backward communication. Based on window, It consist of ID generation, transmitter/receiver, control and backup part.

멀티미디어 데이터베이스 시스템

곽윤식,이석희 충주대 산업과학기술연구소 1999 産業科學論文集 Vol.7 No.1

최근 대용량 네트워크 기술과 멀티미디어 처리기술의 발달로 사용자가 활용하고자 하는 멀티미디어 자료 양이 점차 증가함에 따라 이들의 효율적인 저장과 재사용이 중요한 문제로 대두되고 있다. 특히 다가올 21세기의 모든 정보 통신망 사이에 주고 받는 정보는 멀티미디어 요소가 포함될 것이며, 이에 따른 검색, 접근, 갱신이 이루어져야 한다. 이를 효과적으로 처리하기 위해서는 멀티미디어 자료가 데이터베이스에 의해 체계적으로 관리되어야 한다. 본 논문에서는 멀티미디어 데이터베이스의 개념을 알아보고, 멀티미디어 자료의 질의 처리 기술과 검색을 위한 색인기법, 트랜잭션 처리기술에 대하여 설명하고 마지막으로 향후 연구방향에 대하여 논한다.

수계형 아크릴 점착제의 제조

곽윤철,조주익,신기석,박은석,함현식 明知大學校 産業技術硏究所 2003 産業技術硏究所論文集 Vol.22 No.-

Abstract - Removable protective adhesives for automobiles were synthesized by the emulsion polymerization of monomers, such as n-butyl acrylate(BA), n-butyl methacrylate(BMA), acrylonitrile(AN), acrylic acid(AA) and 2-hydroxyethyl methacrylate(2-HEMA), in which AA and 2-HEMA were functional monomers. Emulsion polymerization was conducted with a semi-batch type reactor. Tensile strength, extension, peel strength, viscosity and solid content of the synthesized adhesives were measured. In addition, acid resistance, alkali resistance and smoke resistance were also examined. As a result, with 0,43 mol of BA, 0,57mol of AN and 0.14~0.21 mol of BMA, the tensile strength, extension and peel strength of the synthesized adhesives satisfied the standard of removable protective adhesives for automobiles.

내용기반 이미지 검색시스템을 위한 사용자 인터페이스의 설계

곽윤식,이석희 충주대 산업과학기술연구소 1998 産業科學論文集 Vol.6 No.-

Normally, traditional database system provided text based user interface for query. That is, users just could give keyword or cheese keyword from keyword list. However, content based image retrival system should support more than that. It should support visualized query expression and query refinement. Also, users should be able to browse search results and to select what they want users can make visualized query experssion by sketching or using sample images or features such as color and texture. In this paper, we first analysis user interface of existing image retrival systems, and design user interface and search engine for content base image retrival system.