KR890004562A - Luminance signal processing circuit - Google Patents

Luminance signal processing circuit Download PDF

Info

Publication number
KR890004562A
KR890004562A KR1019880010556A KR880010556A KR890004562A KR 890004562 A KR890004562 A KR 890004562A KR 1019880010556 A KR1019880010556 A KR 1019880010556A KR 880010556 A KR880010556 A KR 880010556A KR 890004562 A KR890004562 A KR 890004562A
Authority
KR
South Korea
Prior art keywords
circuit
luminance signal
signal processing
clip
processing circuit
Prior art date
Application number
KR1019880010556A
Other languages
Korean (ko)
Inventor
유이찌 이찌까와
요시아끼 구보
Original Assignee
이우에 사또시
상요덴기 가부시기가이샤
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 이우에 사또시, 상요덴기 가부시기가이샤 filed Critical 이우에 사또시
Publication of KR890004562A publication Critical patent/KR890004562A/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/14—Picture signal circuitry for video frequency region
    • H04N5/21—Circuitry for suppressing or minimising disturbance, e.g. moiré or halo
    • H04N5/213—Circuitry for suppressing or minimising impulsive noise

Abstract

내용 없음.No content.

Description

휘도신호 처리회로Luminance signal processing circuit

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음As this is a public information case, the full text was not included.

제5도는 본 발명의 다른 실시예를 도시한 회로도.5 is a circuit diagram showing another embodiment of the present invention.

제6도 (가) 내지 (바)는 제5도의 설명에 제공하기 위한 파형도,6 (a) to (f) are waveform diagrams for providing the description of FIG.

제7도는 제5도의 구체 회로예를 도시한 회로도.FIG. 7 is a circuit diagram showing a specific circuit example of FIG.

Claims (3)

휘도신호 중의 수평 동기신호의 선단을 일정하게 하는 클램프회로 및 상기 휘도신호의 화질 보정을 행하는 화질 보정회로를 갖는 휘도신호 처리회로에 있어서, 상기 휘도신호 처리회로의 출력단에 화질 보정회로에 기인하는 노이즈를 제거하는 클립회로를 접속한 것을 특징으로 하는 휘도신호 처리회로.A luminance signal processing circuit having a clamp circuit for keeping the front end of a horizontal synchronizing signal in a luminance signal constant and an image quality correction circuit for correcting the image quality of the luminance signal, wherein noise caused by the image quality correction circuit is output at the output terminal of the luminance signal processing circuit. And a clip circuit for removing the signal. 제1항에 있어서, 상기 클램프회로의 클램프 기준 전압과 상기 클립회로의 클립 기준 전압을 동일한 전원에서 얻도록 한 것을 특징으로 하는 휘도신호 처리회로.The luminance signal processing circuit according to claim 1, wherein the clamp reference voltage of the clamp circuit and the clip reference voltage of the clip circuit are obtained from the same power supply. 휘도신호 중의 수평 동기신호의 선단 전위가 일정하게 되도록 클램프하는 동시에, 화질보정을 행하는 휘도신호 처리회로에 있어서, 클램프된 휘도신호 중의 수평 동기신호를 분리하는 동기 분리회로와, 클램프됨과 동시에 화질 보정된 휘도신호를 클립하는 클립회로와, 상기 동기 분리회로의 출력신호를 파형 정형하는 파형 정형회로를 구비하고, 상기 파형 정형회로의 출력신호에 따라서 상기 클립회로의 클립 레벨을 절환하도록 한 것을 특징으로 하는 휘도신호 처리회로.A luminance signal processing circuit which clamps so that the potential of the horizontal synchronizing signal in the luminance signal is constant, and performs image quality correction, comprising: a synchronous separation circuit for separating the horizontal synchronizing signal in the clamped luminance signal, and clamped and corrected image quality And a clip circuit for clipping the luminance signal and a waveform shaping circuit for shaping the output signal of the synchronous separation circuit, and switching the clip level of the clip circuit in accordance with the output signal of the waveform shaping circuit. Luminance signal processing circuit. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019880010556A 1987-08-20 1988-08-19 Luminance signal processing circuit KR890004562A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP62-206785 1987-08-20
JP62206785A JPS6449482A (en) 1987-08-20 1987-08-20 Luminance signal processing circuit

Publications (1)

Publication Number Publication Date
KR890004562A true KR890004562A (en) 1989-04-22

Family

ID=16529055

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019880010556A KR890004562A (en) 1987-08-20 1988-08-19 Luminance signal processing circuit

Country Status (2)

Country Link
JP (1) JPS6449482A (en)
KR (1) KR890004562A (en)

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59221078A (en) * 1983-05-28 1984-12-12 Nippon Hoso Kyokai <Nhk> Contour correcting system of picture signal
JPS60134566A (en) * 1983-12-21 1985-07-17 Mitsubishi Electric Corp Picture quality adjusting circuit

Also Published As

Publication number Publication date
JPS6449482A (en) 1989-02-23

Similar Documents

Publication Publication Date Title
KR910006921A (en) Image signal processing circuit
KR880012082A (en) Clamp circuit
KR880000913A (en) Automatic Gain Control (AGC) Circuit
KR880004680A (en) Image quality correction circuit
KR920003742A (en) Video signal average luminance level detection device
JPS6014553B2 (en) Television synchronization signal separation circuit
KR890004562A (en) Luminance signal processing circuit
KR890001389A (en) Image signal processing circuit
KR920005609A (en) NTSC / PAL signal discrimination circuit and upper limit active filter
KR860003704A (en) Video Signal Emphasis Circuit
KR890003200A (en) Horizontal deflection output circuit
KR900004167A (en) Blanking circuit of TV receiver
KR890002851A (en) Video signal processing circuit
KR850003999A (en) Vertical Contour Compensator
KR910019401A (en) Video signal processing device
KR850000861A (en) Video signal processor
KR930003687A (en) Video camera
JP2963915B2 (en) Sync separation circuit
ATE60859T1 (en) CIRCUIT ARRANGEMENT FOR ELIMINATION OF GEOMETRY DISTORTION.
JP2784478B2 (en) Clamp circuit
DE3885840D1 (en) Speaker unit.
KR910004046A (en) Information transmission system using TV luminance signal
KR870010530A (en) FM luminance signal demodulation device for video signal playback device
KR900702703A (en) Sync signal separator
KR880008628A (en) Sharpness Compensation Device of Double Scan TV

Legal Events

Date Code Title Description
A201 Request for examination
E902 Notification of reason for refusal
E902 Notification of reason for refusal
E601 Decision to refuse application