KR970057186A - OSD screen output device and its operation control method during mode switching - Google Patents

OSD screen output device and its operation control method during mode switching Download PDF

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Publication number
KR970057186A
KR970057186A KR1019950054572A KR19950054572A KR970057186A KR 970057186 A KR970057186 A KR 970057186A KR 1019950054572 A KR1019950054572 A KR 1019950054572A KR 19950054572 A KR19950054572 A KR 19950054572A KR 970057186 A KR970057186 A KR 970057186A
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KR
South Korea
Prior art keywords
vertical
signal
video
horizontal
synchronizing signal
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KR1019950054572A
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Korean (ko)
Inventor
임재섭
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배순훈
대우전자 주식회사
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Priority to KR1019950054572A priority Critical patent/KR970057186A/en
Publication of KR970057186A publication Critical patent/KR970057186A/en

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Abstract

본 발명은 모드 전환시 OSD 화면 출력장치 및 그 동작 제어방법에 관한 것으로, 퍼스날 컴퓨터에서 처리하는 비디오 모드가 전환될때 모니터의 음걱선관에 OSD문자를 처리하여 출력함으로서, 비디오 모드 전환시 화면에 아무런 신호가 출력되지 않는 것을 방지할 수 있는 것이다.The present invention relates to an OSD screen output device and a method of controlling the operation during mode switching, and by processing the OSD text to the speech tube of the monitor when the video mode processed by the personal computer is switched, there is no signal on the screen when switching the video mode Can be prevented from being output.

Description

모드 전환시 OSD 화면 출력장치 및 그 동작 제어방법.OSD screen output device and operation control method when switching modes.

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

제2도는 본 발명의 동작을 제어하는 마이크로 콘트롤러 유니트의 동작 상태를 도시한 흐름도이다.2 is a flowchart showing an operating state of the microcontroller unit for controlling the operation of the present invention.

Claims (2)

모니터의 전반적인 동작을 제어하고 비디오 모드 전환시 수직/수평 동기신호 발진용 IC(14)(15)에 구동전압을 출력하며 OSD 문자 처리회로(32)에 제어신호를 출력하는 마이크로 콘트롤러 유니트(12)와; 퍼스날 컴퓨터에서 전송되는 비디오 신호를 수신하여 1차 증폭하는 비디오 프리앰프(28)와; 상기 비디오 프리앰프(28)에서 증폭된 비디오 신호를 처리하여 음극선관(26)으로 출력하는 비디오 신호 처리회로 (30)와; 상기 마이크로 콘트롤러 유니트(12)의 주파수 전압에 따른 수평 동기신호 (Hsync)를 발진하며 비디오 모드 전환시 마이크로 콘트롤러 유니트(12)의 주파수 전압에 의한 수직 동기신호를 발진하여 OSD 문자 처리회로(32)에 인가하는 수평 동기신호 발진용 IC(14)와; 상기 마이크로 콘트롤러 유니트(12)의 주파수 전압에 따른 수직 동기신호(Vsync)를 발진하며 비디오 모드 전환시 마이크로 콘트롤러 유니트(12)의 주파수 전압에 의한 수직 동기신호를 발진하 여 OSD 문자 처리회로 (32)에 인가하는 수직 동기신호 발진용 IC(15)아; 상기 수평 동기신호 발진용 IC(14)에 서 발진한 수평 동기신호에 의해 수평 편향요크(22)에 흐르는 수평 편향전류를 제어하는 수평 편향회로(16)와; 상기 수직 동기신호 발진용 IC(15)에서 발진한 수직 동기신호에 의해 수직 편향요크(24)에 흐르는 수직 편향전류를 제어하는 수직 편향회로(20)와; 상기 수평 동기신호 발진용 IC(14)의 수평 동기신호의 의해 고압을 발생시켜 음극선관(26)에 출력하는 고압 발생용 트랜스(18)와; 모니터의 전반적인 동작상태를 표시하기 위한 OSD문자를 처리하여 비디오 프리앰프(28)로 출력하며 비디오 모드 전환시 마이크로 콘트롤러 유니트(12)의 제어신호를 인가받아 OSD 문자를 비디오 프리앰프(28)에 인가하는 OSD문자 처리회로(32)를 포함하여 구성되어짐을 특징으로 하는 모드 전환시 OSD 화면 출력장치.The microcontroller unit 12 which controls the overall operation of the monitor, outputs a drive voltage to the vertical / horizontal sync signal oscillation ICs 14 and 15 when switching video modes, and outputs a control signal to the OSD character processing circuit 32. Wow; A video preamplifier 28 for receiving and first amplifying the video signal transmitted from the personal computer; A video signal processing circuit (30) for processing the video signal amplified by the video preamplifier (28) and outputting it to the cathode ray tube (26); Oscillates a horizontal sync signal (Hsync) according to the frequency voltage of the microcontroller unit 12, and oscillates a vertical sync signal by the frequency voltage of the microcontroller unit 12 when switching the video mode to the OSD character processing circuit 32. A horizontal synchronization signal oscillation IC 14 to be applied; The oscillator generates a vertical synchronizing signal (Vsync) according to the frequency voltage of the microcontroller unit 12 and oscillates a vertical synchronizing signal according to the frequency voltage of the microcontroller unit 12 when switching the video mode. A vertical synchronization signal oscillation IC 15 applied to the oscillator; A horizontal deflection circuit (16) for controlling a horizontal deflection current flowing through the horizontal deflection yoke (22) by the horizontal synchronizing signal oscillated by the horizontal synchronizing signal oscillation IC (14); A vertical deflection circuit 20 for controlling the vertical deflection current flowing through the vertical deflection yoke 24 by the vertical synchronization signal oscillated by the vertical synchronization signal oscillation IC 15; A high pressure generating transformer 18 for generating a high pressure by the horizontal synchronizing signal of the horizontal synchronizing signal oscillation IC 14 and outputting it to the cathode ray tube 26; Processes OSD characters to display the overall operation status of the monitor and outputs them to the video preamplifier 28. When the video mode is switched, the OSD characters are applied to the video preamplifier 28 by receiving the control signal of the microcontroller unit 12. OSD display device when switching modes, characterized in that it comprises a OSD character processing circuit (32). 퍼스날 컴퓨터에서 출력되는 수직 동기신호와 수평 동기신호에 의해 비디오 신호를 처리하여 음극선관(26)에 디스플레이함에 있어서, 퍼스날 컴퓨터에서 전송되는 수직/수평 동기신호를 인가받아 비디오 모드가 전환되는가를 판독하여 비디오 모드가 전환된 것으로 판정되면 수직/수평 동기신호 발진용 IC(14)(15)에 인가되는 주파수 전압의 출력을 차단하고 임의로 설정된 주파수의 수직/수평 동기신호를 출력할 수 있도록 하는 주파수 전압을 출력하며 OSD 문자 처리회로(32)에 제어신호를 출력하여 음극선관(26)에 소정시간 동안 OSD문자를 디스플레이할 수 있도록 이루어짐을 특징으로 하는 모드 전환시 OSD 화면 출력동작 제어방법.The video signal is processed by the vertical synchronizing signal and the horizontal synchronizing signal output from the personal computer and displayed on the cathode ray tube 26. The vertical / horizontal synchronizing signal transmitted from the personal computer is applied to read whether the video mode is switched. When it is determined that the video mode has been switched, a frequency voltage for interrupting the output of the frequency voltage applied to the vertical / horizontal synchronization signal oscillation ICs 14 and 15 and outputting the vertical / horizontal synchronization signal of an arbitrarily set frequency is determined. And outputting a control signal to the OSD character processing circuit 32 to display the OSD character on the cathode ray tube 26 for a predetermined time. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019950054572A 1995-12-22 1995-12-22 OSD screen output device and its operation control method during mode switching KR970057186A (en)

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KR1019950054572A KR970057186A (en) 1995-12-22 1995-12-22 OSD screen output device and its operation control method during mode switching

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100598413B1 (en) * 1999-11-05 2006-07-10 삼성전자주식회사 Down-scanning apparatus and method in a video display system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100598413B1 (en) * 1999-11-05 2006-07-10 삼성전자주식회사 Down-scanning apparatus and method in a video display system

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