KR970064040A

KR970064040A - Data collision avoidance device in a multiple access device

Info

Publication number: KR970064040A
Application number: KR1019960003526A
Authority: KR
Inventors: 박성재
Original assignee: 정장호; Lg 정보통신 주식회사
Priority date: 1996-02-14
Filing date: 1996-02-14
Publication date: 1997-09-12

Abstract

본 발명은 일대 다중 접속에서 일어나는 데이타 충돌을 방지하여 브로드케스팅(Bfoadcasting)형 데이타 통신에 적합하도록 한 데이타 충돌 방지장치에 관한 것이다. 종래 기술은 트리거 생성부에서 생성된 트리거 신호를 이용하여 신호의 전달 경로를 형성시키게 되는데, 이때 로컬 시스템의 호출에 2개 이상의 원격 시스템이 응답하여 왔을 경우 트리거 신호가 동시에 발생 함으로써 데이타의 충돌로 인한 데이타 손실이 일어나는 문제점이 있었다. 이를 개선코자하여 본 발명은 종래 복수의 원격 장치로부터의 동시 응답에 의한 데이타의 충돌 현상을 방지하기 위하여 트리거 생성부내에 우선순위 생성을 위한 회로를 부설하여 데이타의 충돌로 인한 데이타의 손실을 방지하도록 한 것이다.BACKGROUND OF THE INVENTION 1. Field of the Invention [0002] The present invention relates to a data collision avoidance apparatus adapted to prevent data collision occurring in a one-to-multiple access and to be suitable for broadcasting (Bfoadcasting) type data communication. In the conventional art, a trigger signal generated by a trigger generator is used to form a signal transmission path. When two or more remote systems respond to a local system call, a trigger signal is generated at the same time. There is a problem that data loss occurs. In order to prevent the collision of data caused by simultaneous responses from a plurality of remote devices, the present invention proposes a circuit for generating a priority in a trigger generation unit to prevent data loss due to data collision It is.

Description

Data collision avoidance device in a multiple access device

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is a trivial issue, I did not include the contents of the text.

제2도는 본 발명에 의한 데이타 충돌 방지장치의 블럭 구성도.FIG. 2 is a block diagram of a data collision avoidance apparatus according to the present invention; FIG.

Claims

And a trigger generator for generating a trigger signal for forming a signal receiving path of the corresponding port for a specific length of time through the received signal, wherein the trigger generator comprises: A trigger generation circuit 7A for detecting a start bit and generating a trigger signal; a priority control circuit 7B for giving a priority to a trigger signal generated from the trigger generation circuit 7A; And a switching control circuit (7C) for interrupting data from the remote device other than the selected remote device in accordance with the priority determined by the priority determining device (7B) and controlling switching to the selected remote device Data collision avoidance device.

※ Note: It is disclosed by the contents of the first application.