KR940020796A - First grid muting circuit - Google Patents
First grid muting circuit Download PDFInfo
- Publication number
- KR940020796A KR940020796A KR1019930002978A KR930002978A KR940020796A KR 940020796 A KR940020796 A KR 940020796A KR 1019930002978 A KR1019930002978 A KR 1019930002978A KR 930002978 A KR930002978 A KR 930002978A KR 940020796 A KR940020796 A KR 940020796A
- Authority
- KR
- South Korea
- Prior art keywords
- muting
- grid
- circuit
- driver
- output terminal
- Prior art date
Links
Classifications
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Television Receiver Circuits (AREA)
Abstract
이 발명은 모니터 디스플레이용 제1그리드 뮤팅회로에 관한 것이다. 이 발명에 따른 제1그리드 뮤팅회로는 각의 블럭들의 뮤팅회로부의 뮤팅동작을 원활하게 함으로서 사용자에게 보다 안정된 화상을 제공할 수 있도록 뮤팅신호를 해당 모드별 블럭들로 제공하기 위한 마이컴과, 상기 마이컴의 출력단의 일측 분기점에 접속되고 뮤팅신호를 소정레벨로 뮤팅하기 위한 콘트라스트 뮤팅 회로부와, 상기 콘트라스트 뮤팅 회로부의 출력단에 접속되고 뮤팅된 영상신호를 비데오 신호로 출력하기 위한 비데오 회로와, 상기 마이컴의 출력단의 타측 분기점에 접속되고, 제1그리드회로를 구동시키기 위한 제1그리드 구동부로 구성된 제1그리드 뮤팅회로에 있어서; 상기 제1그리드구동부는 제1그리드 뮤팅 제어부와 제1그리드 뮤팅 구동부로 대체되어 접속되며, 상기 제1그리드 뮤팅 제어부는 포지티브 전원전압 입력단에 각각 병렬 접속된 저항들과, 트랜지스터와, 뮤팅신호와 전원전압을 스위칭하기 위한 스위치 또는 스위칭용 트랜지스터와, 네가티브 전원전압을 제어하기 위한 저항들 및 가변저항으로 구성되고, 제1그리드 뮤팅 구동부는 제너다이오드, 저항 및 트랜지스터로 구성된다.The present invention relates to a first grid muting circuit for monitor display. The first grid muting circuit according to the present invention is a micom for providing a muting signal to the blocks for each mode to provide a more stable image to the user by smoothing the muting operation of the muting circuit portion of each block, the micom A contrast muting circuit section connected to one branch of an output terminal of the output terminal for muting the muting signal to a predetermined level, a video circuit connected to an output terminal of the contrast muting circuit section and outputting a muted video signal as a video signal, and an output terminal of the microcomputer output terminal. A first grid muting circuit, connected to the other branching point of the circuit, and comprising a first grid driver for driving the first grid circuit; The first grid driver is connected to the first grid muting control unit and the first grid muting driver, and the first grid muting control unit is connected to a resistor, a transistor, a muting signal, and a power supply connected in parallel to a positive power supply voltage input terminal, respectively. A switch or switching transistor for switching the voltage, resistors and variable resistors for controlling the negative power supply voltage, and the first grid muting driver is composed of a zener diode, a resistor and a transistor.
따라서 이와 같은 제1그리드 뮤팅회로는 모니터 회로에 유용하게 적용되는 장점이 있다.Therefore, such a first grid muting circuit has an advantage that it is usefully applied to the monitor circuit.
Description
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.
제 2 도는 이 발명에 따른 제1그리드 뮤팅회로의 일실시예를 나타낸 블럭도,2 is a block diagram showing an embodiment of a first grid muting circuit according to the present invention;
제 3 도는 제 2 도에 따른 제1그리드 뮤팅회로의 일실시예를 나타낸 상세회로도,3 is a detailed circuit diagram illustrating an embodiment of a first grid muting circuit according to FIG. 2;
제 4 도는 이 발명에 따른 제1그리드 뮤팅회로의 다른 실시예를 나타낸 상세 회로도,4 is a detailed circuit diagram showing another embodiment of the first grid muting circuit according to the present invention;
제 5 도 ㈎는 제 1 도에 따른 동작 파형도.5 is an operational waveform diagram according to FIG.
Claims (2)
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019930002978A KR100229511B1 (en) | 1993-02-26 | 1993-02-26 | First grid muting circuit of a cathode ray tube |
DE4402865A DE4402865A1 (en) | 1993-01-30 | 1994-01-31 | Lattice lock circuit |
US08/189,513 US5463289A (en) | 1993-01-30 | 1994-01-31 | First grid muting circuit |
FR9401008A FR2701184B1 (en) | 1993-01-30 | 1994-01-31 | First gate blocking circuit. |
GB9401814A GB2274963B (en) | 1993-01-30 | 1994-01-31 | First grid muting circuit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019930002978A KR100229511B1 (en) | 1993-02-26 | 1993-02-26 | First grid muting circuit of a cathode ray tube |
Publications (2)
Publication Number | Publication Date |
---|---|
KR940020796A true KR940020796A (en) | 1994-09-16 |
KR100229511B1 KR100229511B1 (en) | 1999-11-15 |
Family
ID=19351449
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1019930002978A KR100229511B1 (en) | 1993-01-30 | 1993-02-26 | First grid muting circuit of a cathode ray tube |
Country Status (1)
Country | Link |
---|---|
KR (1) | KR100229511B1 (en) |
-
1993
- 1993-02-26 KR KR1019930002978A patent/KR100229511B1/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
KR100229511B1 (en) | 1999-11-15 |
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E701 | Decision to grant or registration of patent right | ||
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