KR980007787A - Negative Signal White Balance Control Unit on TV Receiver - Google Patents

Negative Signal White Balance Control Unit on TV Receiver Download PDF

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Publication number
KR980007787A
KR980007787A KR1019960023378A KR19960023378A KR980007787A KR 980007787 A KR980007787 A KR 980007787A KR 1019960023378 A KR1019960023378 A KR 1019960023378A KR 19960023378 A KR19960023378 A KR 19960023378A KR 980007787 A KR980007787 A KR 980007787A
Authority
KR
South Korea
Prior art keywords
signal
sub
receiver
white balance
screen
Prior art date
Application number
KR1019960023378A
Other languages
Korean (ko)
Other versions
KR100211460B1 (en
Inventor
정희석
Original Assignee
배순훈
대우전자 주식회사
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 배순훈, 대우전자 주식회사 filed Critical 배순훈
Priority to KR1019960023378A priority Critical patent/KR100211460B1/en
Publication of KR980007787A publication Critical patent/KR980007787A/en
Application granted granted Critical
Publication of KR100211460B1 publication Critical patent/KR100211460B1/en

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00—Details of colour television systems
    • H04N9/64—Circuits for processing colour signals
    • H04N9/73—Colour balance circuits, e.g. white balance circuits or colour temperature control
    • 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
    • H04N5/16—Circuitry for reinsertion of dc and slowly varying components of signal; Circuitry for preservation of black or white level
    • H04N5/18—Circuitry for reinsertion of dc and slowly varying components of signal; Circuitry for preservation of black or white level by means of "clamp" circuit operated by switching circuit
    • 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
    • H04N5/45—Picture in picture, e.g. displaying simultaneously another television channel in a region of the screen

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Processing Of Color Television Signals (AREA)
  • Studio Circuits (AREA)

Abstract

본 발명은 YUV포맷용 PIP회로에 양호하게 적용될 수 있는 텔레비젼 수상기의 부신호 화이트밸런스 조정장치에 관한 것이다. 본 발명은 부화면 TV수상기의 화이트밸런스 조정장치는 크게 부화면에 대한 복합영상신호를 처리하여 YUV신호를 만들고, 상기 YUV신호를 PIP처리하여 된 원색신호를 주화면에 대한 원색신호와 합성하여 주화면 및 부화면을 발생시키는 부화면 TV 수상기에 있어서, 상기 U신호 및 V신호의 페데스탈 구간을 소정의 직류레벨로 클림프하는 수단 및 상기 클림프된 페데스탈 구간을 제외한 신호구간의 직류레벨을 임의로 증감시키는 수단을 구비한 것을 특징으로 한다.The present invention relates to a sub-signal white balance adjusting device for a television receiver which can be suitably applied to a PIP circuit for YUV format. According to the present invention, the white balance adjusting device of the sub-screen TV receiver largely processes the composite video signal for the sub-screen to produce the YUV signal, and synthesizes the primary color signal obtained by PIP-processing the YUV signal with the primary color signal for the main screen. A sub picture TV receiver which generates a picture and a sub picture, comprising: means for crimping the pedestal section of the U signal and the V signal to a predetermined DC level and means for arbitrarily increasing or decreasing the DC level of the signal section except for the crimped pedestal section. Characterized in that provided.

Description

TV 수상기의 부신호 화이트밸런스 조정장치Negative Signal White Balance Control Unit on TV Receiver

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

제2도는 본 발명의 부화면 텔레비젼 수상기에서 부신호의 화이트밸런스 조정장치를 보인 블록구성도.2 is a block diagram showing a white balance adjusting device of a sub-signal in a sub-screen television receiver of the present invention.

제3도는 본 발명의 부화면 텔레비젼 수상기에서 부신호의 화이트밸런스 조정동작을 설명하기 위한 파형도.3 is a waveform diagram for explaining a white balance adjustment operation of a sub-signal in a sub-screen television receiver of the present invention.

Claims (1)

부화면에 대한 복합영상신호를 처리하여 YUV신호를 만들고, 상기 YUV신호를 PIP처리하여 된 원색신호를 주화면에 대한 원색신호와 합성하여 주화면 및 부화면을 발생시키는 부화면 TV수상기에 있어서, 상기 U신호 및 V신호의 페데스탈 구간을 소정의 직류레벨로 클림프하는 수단 및 상기 클림프된 페데스탈 구간을 제외한 신호구간의 직류레벨을 임의로 증감시키는 수단을 구비한 것을 특징으로 하는 부화면 TV수상기의 화이트밸런스 조정장치.In a sub-screen TV receiver for generating a YUV signal by processing a composite video signal for a sub-screen, and synthesizing the primary color signal obtained by PIP-processing the YUV signal with the primary color signal for the main screen, Means for crimping the pedestal sections of the U and V signals to a predetermined direct current level; and means for arbitrarily increasing or decreasing the direct current level of the signal sections other than the crimped pedestal section. Adjuster.
KR1019960023378A 1996-06-24 1996-06-24 Subsignal white balance correcting apparatus of tv receiver KR100211460B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019960023378A KR100211460B1 (en) 1996-06-24 1996-06-24 Subsignal white balance correcting apparatus of tv receiver

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019960023378A KR100211460B1 (en) 1996-06-24 1996-06-24 Subsignal white balance correcting apparatus of tv receiver

Publications (2)

Publication Number Publication Date
KR980007787A true KR980007787A (en) 1998-03-30
KR100211460B1 KR100211460B1 (en) 1999-08-02

Family

ID=19463148

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019960023378A KR100211460B1 (en) 1996-06-24 1996-06-24 Subsignal white balance correcting apparatus of tv receiver

Country Status (1)

Country Link
KR (1) KR100211460B1 (en)

Also Published As

Publication number Publication date
KR100211460B1 (en) 1999-08-02

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