KR930019002A - Clarity Control Circuit and Control Method - Google Patents

Clarity Control Circuit and Control Method Download PDF

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Publication number
KR930019002A
KR930019002A KR1019920002189A KR920002189A KR930019002A KR 930019002 A KR930019002 A KR 930019002A KR 1019920002189 A KR1019920002189 A KR 1019920002189A KR 920002189 A KR920002189 A KR 920002189A KR 930019002 A KR930019002 A KR 930019002A
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KR
South Korea
Prior art keywords
sharpness
voltage
adjustment
signal
output
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Application number
KR1019920002189A
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Korean (ko)
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KR0165233B1 (en
Inventor
조익상
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강진구
삼성전자 주식회사
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Priority to KR1019920002189A priority Critical patent/KR0165233B1/en
Publication of KR930019002A publication Critical patent/KR930019002A/en
Application granted granted Critical
Publication of KR0165233B1 publication Critical patent/KR0165233B1/en

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00Details of television systems
    • H04N5/44Receiver circuitry for the reception of television signals according to analogue transmission standards
    • H04N5/57Control of contrast or brightness

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Television Receiver Circuits (AREA)
  • Picture Signal Circuits (AREA)

Abstract

이 발명은 입력되는 영상신호를 처리하여 출력되는 모든 시스템에 관한 것으로서 조정전압 발생부(10), 밝기 및 명암조정부(20), 화면 조정부(40)으로 이루어진 텔레비젼에 있어서, 선명도 조정회로(100)가 연결되어 영상 신호의 밝기 및 명암을 조정하기 위하여 조정전압 발생부(10)에서 출력되는 전압으로부터 선명도를 조정하기 위한 신호(S)가 출력됨으로써, 선명도가 조정되고 따라서 선명도의 조정으로 인하여 화이트 노이즈가 최소로 줄어드는 효과가 있다.The present invention relates to all systems that process and output the input video signal, the sharpness adjustment circuit 100 in a television comprising an adjustment voltage generator 10, brightness and contrast adjustment unit 20, screen adjustment unit 40 Is connected to output a signal S for adjusting the sharpness from the voltage output from the adjustment voltage generator 10 to adjust the brightness and contrast of the image signal, thereby adjusting the sharpness and thus white noise due to the adjustment of the sharpness. Has the effect of reducing to a minimum.

Description

선명도 제어회로 및 그 제어방법Clarity Control Circuit and Control Method

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

제1도는 종래의 텔레비젼에 있어서 화면 조정회로를 나타낸 블럭도.1 is a block diagram showing a screen adjustment circuit in a conventional television.

제2도는 이 발명에 따른 일실시예인 선명도 제어회로를 나타낸 블럭도.2 is a block diagram showing a sharpness control circuit according to an embodiment of the present invention.

제3도는 이 발명에 다른 일실시예인 선명도 제어방법을 나타낸 흐름도.3 is a flowchart illustrating a sharpness control method according to another embodiment of the present invention.

제4도는 이 발명에 따른 또다른 일실시예인 선명도 제어회로를 나타낸 블럭도.4 is a block diagram showing a sharpness control circuit according to another embodiment of the present invention.

Claims (5)

조정전압 발생부(10)에서 출력되는 조정전압이 바이패스부(20)를 통과하여 이 화면 조정부(40)에 인가됨으로써, 영상신호의 밝기 (C)와 명암(B)이 제어되는 텔레비젼에 있어서, 상기 조정전압 발생부(10)에서 출력되는 조정전압이 직류전압으로 변환되고, 이 변환된 직류전압에 의하여 영상신호의 선명도가 제어되는 선명도 조정회로(100)가 더 포함되는 선명도 제어회로.In the television in which the brightness (C) and the contrast (B) of the video signal are controlled by the adjustment voltage output from the adjustment voltage generator 10 passing through the bypass unit 20 and applied to the screen adjustment unit 40. And a sharpness adjustment circuit (100) for converting an adjustment voltage output from the adjustment voltage generator (10) into a DC voltage and controlling the sharpness of an image signal by the converted DC voltage. 제1항에 있어서, 선명도 조정회로(100)는, 입력되는 영상신호의 밝기 및 명암을 제어하기 위하여 출력되는 전압을 직류전원으로 변환하는 A/D변환기(101)와, 상기 A/D변환기(101)에서 출력되는 신호에 의해 선명도를 제어하기 위한 신호(S)가 출력되어 영상신호의 밝기 및 명암의 조정으로 인하여 발생되는 화이트 노이즈가 제거 되는 마이콤부(102)와, 로 이루어진 선명도 제어회로.The A / D converter 101 of claim 1, further comprising: an A / D converter 101 for converting an output voltage into a DC power source for controlling brightness and contrast of an input video signal; And a microcomputer unit 102 for removing the white noise generated by adjusting the brightness and contrast of the image signal by outputting a signal S for controlling the sharpness by the signal output from the 101). 제1항에 있어서, 선명도 조정회로(100)는, 조정전압 발생부(10)에서 출력되는 전압이 인가되어 전위차가 발생되는 저항(R1001)으로 이루어진 선명도 제어회로.The sharpness control circuit according to claim 1, wherein the sharpness adjustment circuit (100) comprises a resistor (R1001) in which a potential difference is generated by applying a voltage output from the adjustment voltage generator (10). 영상신호의 밝기와 명암의 조정 상태에 따라 선명도가 조절되는 선명도가 제어되는 선명도 제어회로에 있어서, 영상신호의 밝기 및 명암의 조정상태가 감지되고, 이 감지된 상태를 조정하기 위하여 출력되는 조정전압을 감지하기 위한 감지과정(P1)과, 상기 감지과정(P1)의 수행후 감지된 조정전압을 직류전압으로 변환되고, 변환된 직류 전압을 읽은 데이타 변환과정(P2)과, 상기 데이타 변환과정(P2)의 수행후 입력되는 데이타로 부터 선명도를 제어하는 신호(S)가 출력되어 선명도가 제어되는 조정과정(P3)과 의 순으로 이루어진 선명도 제어방법.In a sharpness control circuit in which the sharpness of the image signal is controlled according to the adjustment state of the brightness and contrast of the image signal, an adjustment state of the brightness and contrast of the image signal is detected, and an adjustment voltage is output to adjust the detected state. A sensing process (P1) for detecting a voltage, a regulated voltage detected after the sensing process (P1) is converted into a DC voltage, a data conversion process (P2) for reading the converted DC voltage, and the data conversion process ( Sharpness control method consisting of the adjustment process (P3) and the sharpness is controlled by outputting a signal (S) for controlling the sharpness from the input data after the execution of P2). 제2항에 있어서, 조정과정(P3)은, 입력되는 직류전압에 따른 선명도 신호(S)를 판단하는 스텝(S5)과, 상기 스텝(S5)에서 출력되는 선명도 신호(S)가 출력되어 영상신호의 선명도가 제어되는 스텝(S6)과, 의 순으로 이루어진 선명도 제어방법.According to claim 2, Adjusting step (P3), the step (S5) for determining the sharpness signal (S) according to the input DC voltage, and the sharpness signal (S) output in the step (S5) is output image Step (S6), the sharpness of the signal is controlled, the sharpness control method consisting of the order of. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019920002189A 1992-02-14 1992-02-14 Definition control method and the circuit KR0165233B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019920002189A KR0165233B1 (en) 1992-02-14 1992-02-14 Definition control method and the circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019920002189A KR0165233B1 (en) 1992-02-14 1992-02-14 Definition control method and the circuit

Publications (2)

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KR930019002A true KR930019002A (en) 1993-09-22
KR0165233B1 KR0165233B1 (en) 1999-03-20

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100469724B1 (en) * 1997-12-09 2005-04-06 삼성전자주식회사 Security Room, Doorway, 3 Way Call Implementation Device and Method in Video Door Phone

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100469724B1 (en) * 1997-12-09 2005-04-06 삼성전자주식회사 Security Room, Doorway, 3 Way Call Implementation Device and Method in Video Door Phone

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Publication number Publication date
KR0165233B1 (en) 1999-03-20

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