KR970055438A - Signal input switching control device of monitor - Google Patents

Signal input switching control device of monitor Download PDF

Info

Publication number
KR970055438A
KR970055438A KR1019950066376A KR19950066376A KR970055438A KR 970055438 A KR970055438 A KR 970055438A KR 1019950066376 A KR1019950066376 A KR 1019950066376A KR 19950066376 A KR19950066376 A KR 19950066376A KR 970055438 A KR970055438 A KR 970055438A
Authority
KR
South Korea
Prior art keywords
signal
switching
input
digital
analog
Prior art date
Application number
KR1019950066376A
Other languages
Korean (ko)
Inventor
이문걸
Original Assignee
배순훈
대우전자 주식회사
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 배순훈, 대우전자 주식회사 filed Critical 배순훈
Priority to KR1019950066376A priority Critical patent/KR970055438A/en
Publication of KR970055438A publication Critical patent/KR970055438A/en

Links

Landscapes

  • Selective Calling Equipment (AREA)
  • Electronic Switches (AREA)
  • Arrangements For Transmission Of Measured Signals (AREA)

Abstract

본 발명은 디서브컨넥터와 비엔시로부터의 외부 입력신호유무를 감지하여 신호입력상태에 따라 입력신호단자를 자동으로 스위칭절환하도록 한 모니터의 신호입력절환제어장치를 제공하고자 하는 것이다.An object of the present invention is to provide a signal input switching control apparatus of a monitor that detects the presence of an external input signal from a desub connector and a non-sensing device and automatically switches the input signal terminal according to a signal input state.

이를 위해 본 발명은, 디서브컨넥터(10)를 매개로 입력되는 비디오 신호 및 동기신호를 각각 디지탈신호로 변화하는 제1아날로그/디지탈변환기(60)와, 비엔시(12)를 매개로 입력되는 비디오신호 및 동기신호를 각각 디지탈신호로 변화하는 제2아날로그/디지탈변환기(50), 상기 디서브 컨넥터(10)와 상기 비엔시(12)를 매개로 입력되는 비디오신호를 스위칭 선택하여 비디오프리엠프부(14)로 인가함과 더불어 상기 디서브컨넥터(10)와 상기 비엔시(12)를 매개로 입력되는 동기신호를 스위칭선택하여 마이컴(20)으로 인가하는 스위칭부(40), 상기 제1 및 제2아날로그/디지탈변환부(60,50)로부터의 디지탈데이타를 기초로 상기 스위칭부(40)의 스위칭선택제어를 행하는 마이컴(20)으로 이루어진 것을 특징으로 한다.To this end, the present invention, the first analog / digital converter 60 and the non-entry 12 are input via the first analog / digital converter 60 to convert the video signal and the synchronization signal, respectively, via the sub connector 10 into a digital signal, respectively. A video preamplifier is selected by switching a video signal inputted through the second analog / digital converter 50, the sub connector 10, and the non-NC 12, each of which converts a video signal and a synchronization signal into a digital signal. In addition to the unit 14, the switching unit 40 for switching and selecting the synchronous signal input via the desub connector 10 and the non-ensitivity 12 to the microcomputer 20, the first And a microcomputer 20 which performs switching selection control of the switching unit 40 based on the digital data from the second analog / digital conversion units 60 and 50.

Description

모니터의 신호입력절환제어장치Signal input switching control device of monitor

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

제2도는 본 발명에 따른 모니터의 신호입력절환장치를 설명하기 위한 모니터의 개략적인 회로블럭구성도,2 is a schematic circuit block diagram of a monitor for explaining a signal input switching device of the monitor according to the present invention;

제3도는 제2도에 도시한 모니터의 신호입력절환제어장치에 있어서 마이컴의 제어동작흐름에 대한 일실시예를 나타낸 도면이다.FIG. 3 is a diagram showing an embodiment of the control operation flow of the microcomputer in the signal input switching control device of the monitor shown in FIG.

Claims (3)

디서브컨넥터(10)를 매개로 입력되는 비디오신호 및 동기신호를 각각 디지탈신호로 변환하는 제1아날로그/디지탈변환기(60)와, 비엔시(12)를 매개로 입력되는 비디오신호 및 동기신호를 각각 디지탈신호로 변화하는 제2아날로그/디지탈변환기(50), 상기 디서브컨넥터(10)와 상기 비엔시(12)를 매개로 입력되는 비디오신호를 스위칭선택하여 비디오프리엠프부(14)로 인가함과 더불어 상기 디서브컨넥터(10)와 상기 비엔시(12)를 매개로 입력되는 동기신호를 스위칭선택하여 마이컴(20)으로 인가하는 스위칭부(40), 상기 제1 및 제2아날로그/디지탈변환부(60,50)로부터의 디지탈데이타를 기초로 상기 스위칭부(40)의 스위칭선택제어를 행하는 마이컴(20)으로 이루어진 것을 특징으로 하는 모니터의 신호입력절환제어장치.A first analog / digital converter 60 for converting the video signal and the synchronization signal input through the sub-connector 10 into digital signals, and the video signal and the synchronization signal input through the non-entry 12, respectively. The second analog / digital converter 50, which is converted into a digital signal, respectively, is switched to the video pre-amplifier 14 by switching the video signals inputted through the sub connector 10 and the BNC 12. In addition, the switching unit 40 for switching and selecting the synchronous signal inputted through the desubconnector 10 and the BNC 12 to the microcomputer 20, the first and second analog / digital signals. And a microcomputer (20) which performs switching selection control of the switching unit (40) based on the digital data from the converting unit (60, 50). 제1항에 있어서, 상기 마이컴(20)은 제1 및 제2아날로그/디지탈변환기(60,50)에서 디지탈변환되어 입력되는 각 신호를 순차적으로 소정의 설정레벨 이상인지를 판단해서, 어느 한쪽에서만 소정레벨 이상의 신호가 모두 입력되는 경우 그에 대응하는 입력신호를 선택하기 위한 제어신호를 상기 스위칭부(40)로 출력하는 한편, 양쪽에서 소정레벨 이상의 신호가 모두 입력되는 경우 기설정된 우선순위에 따른 입력신호를 선택하기 위한 제어신호를 상기 스위칭부(40)로 출력하는 것을 특징으로 하는 모니터의 신호입력절환제어장치.The method of claim 1, wherein the microcomputer 20 determines whether each of the signals input by being digitally converted by the first and second analog / digital converters 60 and 50 is sequentially above a predetermined set level, When all signals of a predetermined level or more are inputted, a control signal for selecting an input signal corresponding thereto is outputted to the switching unit 40, and when both signals of a predetermined level or more are inputted at both sides, the input according to a predetermined priority is input. Signal input switching control device of the monitor, characterized in that for outputting a control signal for selecting a signal to the switching unit (40). 제1항에 있어서, 상기 마이컴(20)은 소정시간단위로 상기 제1 및 제2아날로그/디지탈변환기(60,50)를 이네이블상태로 제어하여 신호입력유무를 감지하는 것을 특징으로 하느 모니터의 신호입력전환제어장치.The monitor of claim 1, wherein the microcomputer 20 detects the presence of a signal input by controlling the first and second analog / digital converters 60 and 50 in an enabled state by a predetermined time unit. Signal input switching control device. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019950066376A 1995-12-29 1995-12-29 Signal input switching control device of monitor KR970055438A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019950066376A KR970055438A (en) 1995-12-29 1995-12-29 Signal input switching control device of monitor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019950066376A KR970055438A (en) 1995-12-29 1995-12-29 Signal input switching control device of monitor

Publications (1)

Publication Number Publication Date
KR970055438A true KR970055438A (en) 1997-07-31

Family

ID=66637995

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019950066376A KR970055438A (en) 1995-12-29 1995-12-29 Signal input switching control device of monitor

Country Status (1)

Country Link
KR (1) KR970055438A (en)

Similar Documents

Publication Publication Date Title
US5471517A (en) Subscriber system testing method
TW370753B (en) Input buffer circuit
KR960043474A (en) Analog-to-digital converter comparator reference device
KR20110134159A (en) Method for processing the image data, the image sensor and image data processor system using the method
KR970055438A (en) Signal input switching control device of monitor
KR960028398A (en) Audio / Video Input Automatic Switching Device
JPH04342010A (en) Sensor controller
TW365664B (en) Computer joystick that accepts speech commands
KR200241663Y1 (en) Input signal automatic selection device of reflex device
KR970057699A (en) Signal interface device of television receiver
JP2885082B2 (en) Signal conditioner
KR100221222B1 (en) Graphic decoder and ntsc incoder of a subscriber indoor apparatus
JP3154395B2 (en) Data signal multiplexer
KR20010048618A (en) Apparatus for digital tone generating in communication terminal
JPH07322136A (en) Fade-out and fade-in circuit
JPH0522461A (en) Synchronizing terminal station equipment
KR950025753A (en) How to operate digital VCR (Video Cassete Recorder)
KR970049400A (en) Monitor signal input terminal error alarm device
JPH06133003A (en) Dc branching device
KR940023235A (en) Separate image information processing system
KR940003332A (en) High speed image transmission circuit
KR970071698A (en) Karaoke extension device
KR950010533A (en) Apparatus for Implementing Image Special Effects Using Bit Defect Technique
KR950002317A (en) General Telephone Access Device of Digital Key Phone System
KR950023058A (en) VCR ART signal processing device

Legal Events

Date Code Title Description
WITN Withdrawal due to no request for examination