KR960030664A - No signal screen processing unit - Google Patents

No signal screen processing unit Download PDF

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Publication number
KR960030664A
KR960030664A KR1019950000456A KR19950000456A KR960030664A KR 960030664 A KR960030664 A KR 960030664A KR 1019950000456 A KR1019950000456 A KR 1019950000456A KR 19950000456 A KR19950000456 A KR 19950000456A KR 960030664 A KR960030664 A KR 960030664A
Authority
KR
South Korea
Prior art keywords
signal
screen
osd
detected
display
Prior art date
Application number
KR1019950000456A
Other languages
Korean (ko)
Inventor
김병두
Original Assignee
문정환
Lg 반도체주식회사
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 문정환, Lg 반도체주식회사 filed Critical 문정환
Priority to KR1019950000456A priority Critical patent/KR960030664A/en
Publication of KR960030664A publication Critical patent/KR960030664A/en

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/80—Camera processing pipelines; Components thereof
    • H04N23/81—Camera processing pipelines; Components thereof for suppressing or minimising disturbance in the image signal generation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/04—Synchronising
    • H04N5/08—Separation of synchronising signals from picture signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/44—Receiver circuitry for the reception of television signals according to analogue transmission standards
    • H04N5/445—Receiver circuitry for the reception of television signals according to analogue transmission standards for displaying additional information

Abstract

본 발명은 무신호시 화면 처리장치에 관한 것으로서, 특히 텔레비젼 시청시, 무신호상태 또는 극약전계하에서 화면의 이글거림이나 온스크린디스플레이(OSD) 디스플레이 화면의 흔들림을 방지하기 위한 무신호시 화면 처리장치에 관한 것이다. 종래에는 티브이 채널을 자동적으로 감지할때는 일시적인 영상신호의 입력도 감지하므로 무신호상태하에서 화면이 이글거리거나 온스크린디스플레이(OSD) 화면이 흔들려서 사람의 눈을 피곤하게 만들 수 있는 문제점이 있있다. 따라서, 본 발명은 무신호시 또는 약전계에서 채널선국이 제대로 되지 않을 경우 복합영상신호로부터 동기신호를 분리하여 무신호시 그 동기신호 레벨에 의해 화면을 블랙 처리하고 또한 수직 및 수평 동기신호에 의하여 온스크린디스플레이(OSD)화면을 안정화 시킴으로써 사용자의 피로를 덜어주는 효과가 있다.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a no-signal screen processing apparatus, and particularly, to prevent jitter or shaking of an on-screen display (OSD) display screen under a no-signal state or a weak electric field when watching television. It is about. In the related art, when the TV channel is automatically detected, a temporary video signal is also detected. Therefore, the screen is flickered or the on-screen display (OSD) screen is shaken under the no signal state, thereby making a human eye tired. Therefore, the present invention separates the synchronization signal from the composite video signal when the channel selection is not performed properly in the no signal or weak electric field, and black-screens the screen by the synchronization signal level when no signal is detected. By stabilizing the on-screen display (OSD) screen has the effect of reducing the fatigue of the user.

Description

무신호시 화면 처리장치No signal screen processing unit

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

제1도는 본 발명의 무신호시 화면 처리장치 블럭도.1 is a block diagram of a signal-free screen processing apparatus of the present invention.

Claims (2)

복합영산신호를 입력받아 유신호시와 무신호시를 판단하는 무신호 검출부와, 상기 무신호 검출부의 판단 결과에 따라 스위치하는 스위칭부와, 상기 무신호 검출부의 판단결과에 따라 동작하는 동기신호 출력부와, 상기 동기신호 출력부에서 동기 신호가 출력되면 온스크린디스플레이(OSD) 화면을 안정화 시키는 마이크로 컴퓨터로 구성되어진 것을 특징으로 하는 무신호시 화면 처리장치.A no-signal detection unit for receiving a mixed signal and judging whether there is a signal signal or no signal, a switching unit for switching according to the determination result of the non-signal detection unit, a synchronization signal output unit operating according to the determination result of the non-signal detection unit, and And a microcomputer for stabilizing an On-Screen Display (OSD) screen when a sync signal is output from the sync signal output unit. 제1항에 있어서, 스위칭부는 트랜지스터로 구성되어진 것을 특징으로 하는 무신호시 화면 처리장치.The apparatus of claim 1, wherein the switching unit comprises a transistor. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019950000456A 1995-01-12 1995-01-12 No signal screen processing unit KR960030664A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019950000456A KR960030664A (en) 1995-01-12 1995-01-12 No signal screen processing unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019950000456A KR960030664A (en) 1995-01-12 1995-01-12 No signal screen processing unit

Publications (1)

Publication Number Publication Date
KR960030664A true KR960030664A (en) 1996-08-17

Family

ID=66530997

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019950000456A KR960030664A (en) 1995-01-12 1995-01-12 No signal screen processing unit

Country Status (1)

Country Link
KR (1) KR960030664A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100521634B1 (en) * 1998-10-29 2006-01-27 주식회사 현대오토넷 Antenna Diversity Using LCD Vertical Synchronization Signal

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100521634B1 (en) * 1998-10-29 2006-01-27 주식회사 현대오토넷 Antenna Diversity Using LCD Vertical Synchronization Signal

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E902 Notification of reason for refusal
E601 Decision to refuse application