서지주요정보
1쌍의 전화선을 이용한 LAN의 구현을 위한 회로 설계 = Circuit design for implementation of LAN over 1-pair telephone line
서명 / 저자 1쌍의 전화선을 이용한 LAN의 구현을 위한 회로 설계 = Circuit design for implementation of LAN over 1-pair telephone line / 김상경.
저자명 김상경 ; Kim, Sang-Kyung
발행사항 [대전 : 한국과학기술원, 2001].
Online Access 원문보기 원문인쇄

소장정보

등록번호

8011877

소장위치/청구기호

학술문화관(문화관) 보존서고

MEE 01018

휴대폰 전송

도서상태

이용가능

대출가능

반납예정일

초록정보

There has been increasing demand of high-speed internet service over telephone lines in apartment, hotel, and office building, etc. with explosive increase of internet users and diversification of tasks. Previous solutions were not satisfactory in transfer rate of data and length of use. In this work, as a solution of this demand, a high-speed communications system over one-pair telephone line(CPEV) is proposed and analog circuits are designed and implemented. As the CSMA/CD, the protocol of ethernet physical layer, is half duplex, this system separates Tx and Rx in time domain. This system allows the channel to only one-directional signal, i.e. restrains Tx when Rx is detected, Rx when Tx is detected at both parts of link segment. Therefore, the needed circuits are Rx and Tx amplifiers with perfect switching characteristics, which enable communications over targeted 500 meters. The receiver amplifier recover the digital stream by compensating the high frequency signals attenuated along the long channel, amplifying with high gain, and clipping the amplified signal to have 2Vpp. The transmitter amplifier has a gain of about unity and a bandwidth of from about 100kHz to 15MHz, so produces low distortion to 10Base-T signal of which spectrum concentrates in 5~10MHz.

서지기타정보

서지기타정보
청구기호 {MEE 01018
형태사항 v, 73 p. : 삽도 ; 26 cm
언어 한국어
일반주기 저자명의 영문표기 : Sang-Kyung Kim
지도교수의 한글표기 : 조규형
지도교수의 영문표기 : Gyu-Hyeong Cho
학위논문 학위논문(석사) - 한국과학기술원 : 전기및전자공학전공,
서지주기 참고문헌 수록
주제
전화선
회로설계
LAN
twisted-pair
telephone line
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