Journal of Biomedical Engineering Research (대한의용생체공학회:의공학회지)

The Korean Society of Medical and Biological Engineering (대한의용생체공학회)
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A Study on the Implementation of ISDN LAPD Protocol for the Ultrasonic Image Trasfer

초음파 영상 전달을 위한 ISDN(Integrated Service Digital-Network)의 LAPD(Link Access Procedure on the D-Channel) 프로토콜 구현에 관한 연구

  • 정용길 (고등 기술 연구원) ;
  • 한민수 (아주대학교 전자공학과, 광운대학교 전자통신공학과, 건국대학교 전자공학과)
  • Published : 1993.12.01
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Abstract

This paper deals with a subject for implementation of L+ayer 1 and Layer 2(LAPD) of ISDN user-network interface on the basis of CCITT recommandation I.411, I.412, I.441 (Q.921), I.450(Q.930) and I.451 (Q.931) for ultrasonic image transfer. For the implementa tion of LAPD protocol of ISDN in this study. PC-CARD based hardware(TA :Terminal Adopt) is proposed and operating system (PC-XINU) supporting the Multiprocessing is transplanted to it. As the Service Access Point(SAP) is accessed by using the port of XINU and Layers which consist of transmitting and receiving part are independantly processed for each other in this proposed system. It can be easy and flexible to implement LAPD protocol for the message transfer.

Keywords

References

  1. 의공학회지 v.12 no.4 종합정보통신망 환경속에서 의료 영상 정보 전달을 위한 PC-card개발에 관한 연구 이동화(외)
  2. CCITT ISDN series VOL. 1 Digital Subscriber Signalling No. 1(DSS1)DATA LINK LAYER(RECOMMANDATION Q.920 $ 921)
  3. CCITT ISDN series VOL. 2 Digital Subscriber Signalling No. 1(DSS1)NETWORK LAYER(RECOMMANDATION Q.930 $ Q.931 $ $ 1-4)
  4. CCITT ISDN series VOL. 2 Digital Subscriber Signalling No. 1(DSS1)NETWORK LAYER(RECOMMANDATION Q.930 $ Q.931 $ $ 5-9)
  5. CCITT ISDN series VOL. 2 Digital Subscriber Signalling No. 1(DSS1)NETWORK LAYER(RECOMMANDATION Q.931 $ ANNEX A)
  6. CCITT ISDN series VOL. 2 Digital Subscriber Signalling No. 1(DSS1)NETWORK LAYER(RECOMMANDATION Q.931 ANNEX B TO O AND APPENID Ⅰ,Ⅱ AND Ⅲ)
  7. CCITT ISDN series VOL. 2 Digital Subscriber Signalling No. 1(DSS1)NETWORK LAYER AND USER NETWORK MANAGEMENT(RECOMMANDATION Q.932 $ Q.940)
  8. SIEMENS ISDN Subscriber Access Controller(ISAC.S) Technical Manual
  9. SIEMENS ISDN Terminal Adapter Circuit(IT-AC) Technical Manual
  10. INTEL Embedded Controller Handbook VOL. 2 16BIT
  11. 종합정보통신망개론 강철희(외)
  12. OPERATING SYSTEM DESIGN VOL. 1. THE XINU APPROACH D.Comer;T.Fossum