KR960025263A

KR960025263A - Alarm indication signal (AIS) transmitter

Info

Publication number: KR960025263A
Application number: KR1019940033184A
Authority: KR
Inventors: 박병창
Original assignee: 정장호; Lg 정보통신주식회사
Priority date: 1994-12-07
Filing date: 1994-12-07
Publication date: 1996-07-20

Abstract

본 발명은 알람 지시 신호(Alarm indication Signal : 이하 AIS라 약칭함)송출에 관한 것으로, 특히 시스템에 클럭이 정상적으로 공급되지 않을 때(클럭장애시) 수신 데이타로부터 클럭을 추출하여 알람 지시 신호의 송출이 가능토록 한 알람 지시 신호 송출장치에 관한 것이다.The present invention relates to the transmission of an alarm indication signal (hereinafter abbreviated as AIS). In particular, when the clock is not normally supplied to the system (when a clock failure), the clock is extracted from the received data to send out the alarm indication signal. An alarm indication signal transmitting device is possible.

종래이 알람 지시 신호 송출 장치는 오실레이터에 의해 생성된 클럭 또는 외부로부터 공급되는 클럭을 인가받아야만 알람 지시 신호의 생성 및 송출이 가능하므로, 유니트 자체에 오실레이터가 없는 유니트에서는 외부 클럭에 장애가 발생되면 알람 지시 신호의 생성 및 송출이 불가능한 문제점이 있었다.Conventionally, the alarm indication signal transmitting device is capable of generating and sending the alarm indication signal only when the clock generated by the oscillator or the clock supplied from the outside is applied. There was a problem that the generation and delivery of the impossible.

따라서 본 발명은 외부로부터 송출되는 데이타로부터 수신클럭을 추추하여 출력하는 데이타 수신수단과, 상기 데이타 수신수단에서 얻어진 수신클럭과 외부로부터 공급되는 클럭을 마이크로 프로세서로부터 출력되는 클럭 선택신호에 따라 선택하여 출력하는 클럭 선택 수단과, 상기 클럭 선택 수단에서 선택되어 출력되는 클럭으로 알람 지시 신호를 생성하는 알람 지시 신호 생성수단과, 상기 알람 지시 신호 생성수단에서 얻어지는 알람 지시 신호와 송출할 데이타를 선택하여 출력하는 신호선택수단을 구비하여 전술한 바와 같은 종래 기술의 제반 문제점을 해결하였다.Accordingly, the present invention selects and outputs a data receiving means for inferring and outputting a reception clock from data transmitted from the outside, and a clock received from the data processor and a clock supplied from the microprocessor according to a clock selection signal output from a microprocessor. Selecting and outputting an alarm instruction signal generating means for generating an alarm instruction signal with a clock selected by the clock selecting means, an alarm instruction signal generating means and the data to be transmitted. Signal selection means have been provided to solve all the problems of the prior art as described above.

Description

Alarm indication signal (AIS) transmitter

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

제1도는 종래 알람 지시 신호 송출 장치 구성도.1 is a configuration diagram of a conventional alarm instruction signal transmitting device.

Claims

Data receiving means for extracting and outputting a reception clock from externally transmitted data; and clock selection means for selecting and outputting a reception clock obtained from the data reception means and a clock supplied from the outside according to a clock selection signal output from a microprocessor. And an alarm instruction signal generating means for generating an alarm instruction signal with a clock selected and output by the clock selecting means, and a signal selecting means for selecting and outputting an alarm instruction signal obtained from the alarm instruction signal generating means and data to be transmitted. Alarm instruction signal transmission device, characterized in that consisting of.

The method of claim 1, wherein the clock selecting means comprises a 2: 1 multiplexer which selects and outputs a receiving clock obtained from the data receiving means or an external clock supplied from the outside according to a clock selection signal output from the microprocessor. Alarm instruction signal transmitter.

※ Note: The disclosure is based on the initial application.