한국전자통신학회논문지 (The Journal of the Korea institute of electronic communication sciences)

한국전자통신학회 (Korea Institute of Electronic Communication Science)
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UHD급 영상패턴 제어를 위한 전송선로의 신호 왜곡현상 분석

Analysis of Signal Distortion for Ultra High Definition Video Pattern Control

  • 손희배 (경남대학교 정보통신공학과) ;
  • 진종호 (경남대학교 정보통신공학과) ;
  • 이영철 (경남대학교 정보통신공학과)
  • 투고 : 2014.08.05
  • 심사 : 2014.10.17
  • 발행 : 2014.10.31
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초록

최근 초고화질(4K-UHD) 영상 시스템의 신호전송은 비압축 고속 데이터로 전송되며 고속 신호의 인터페이스 구간에 서로 다른 케이블 사이에서 나타나는 EMI, 스큐(skew) 문제로 인하여 영상신호의 왜곡, 지터 등으로 시스템 구현에 한계가 있다. 이와 같이 비압축 고속 데이터를 고속전송하기 위하여 V-by-One HS 인터페이스 기법을 적용하여 본 논문에서는 고속 영상신호에 대하여 HSD(High Speed Differential) 전송선로의 신호무결성을 분석하였다. UHD 영상패턴 제어 인터페이스의 PCB 설계 방법을 RF 전송기법으로 적용하였으며 구현된 4K-UHD급 영상패턴 제어 신호발생기의 V-by-One HS 영상신호를 측정한 결과, 전송품질이 고속전송신호규격에 만족함을 보였다.

Recently signal transmission of ultra high-definition(4K-UHD) video system is transferred as uncompressed high speed data. However, this has a limit to compose the system because EMI between separate cables of high speed interface section and skew bring distortion of the video signal and jitter. In this paper we applied V-by-One HS interface technique to transfer uncompressed high speed data. We analyzed HSD(High Speed Differential) transmission line signal integrity. Also we applied RF transmission technique instead of UHD video pattern control interface PCB design. When we measured V-by-One HS video signal of designed 4K-UHD class signal generator, We found that the transmission performance has been signal standard.

키워드

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