KR970004803A - Wide Vision Automatic Aspect Ratio Conversion Circuit - Google Patents

Wide Vision Automatic Aspect Ratio Conversion Circuit Download PDF

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Publication number
KR970004803A
KR970004803A KR1019950017662A KR19950017662A KR970004803A KR 970004803 A KR970004803 A KR 970004803A KR 1019950017662 A KR1019950017662 A KR 1019950017662A KR 19950017662 A KR19950017662 A KR 19950017662A KR 970004803 A KR970004803 A KR 970004803A
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South Korea
Prior art keywords
aspect ratio
signal
image
data
check line
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KR1019950017662A
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Korean (ko)
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KR0178182B1 (en
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조민수
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배순훈
대우전자 주식회사
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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N3/00Scanning details of television systems; Combination thereof with generation of supply voltages
    • H04N3/10Scanning details of television systems; Combination thereof with generation of supply voltages by means not exclusively optical-mechanical
    • H04N3/16Scanning details of television systems; Combination thereof with generation of supply voltages by means not exclusively optical-mechanical by deflecting electron beam in cathode-ray tube, e.g. scanning corrections
    • H04N3/22Circuits for controlling dimensions, shape or centering of picture on screen
    • H04N3/223Controlling dimensions
    • HELECTRICITY
    • H03ELECTRONIC CIRCUITRY
    • H03MCODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M1/00Analogue/digital conversion; Digital/analogue conversion
    • H03M1/12Analogue/digital converters
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N3/00Scanning details of television systems; Combination thereof with generation of supply voltages
    • H04N3/10Scanning details of television systems; Combination thereof with generation of supply voltages by means not exclusively optical-mechanical
    • H04N3/16Scanning details of television systems; Combination thereof with generation of supply voltages by means not exclusively optical-mechanical by deflecting electron beam in cathode-ray tube, e.g. scanning corrections
    • H04N3/24Blanking circuits
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00Details of television systems
    • H04N5/04Synchronising
    • H04N5/08Separation of synchronising signals from picture signals

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Theoretical Computer Science (AREA)
  • Television Systems (AREA)

Abstract

본 발명은 16 : 9화면비의 와이드비전에 입력되는 상호 다른 화면비의 영상소프트에 대해 적응적으로 시네마모드의 화면비로 변환해 주도록 된 와이드비전의 자동 화면비 변환회로에 관한 것으로, 영상소프트의 영상신호로부터 얻어지는 소정의 클럭신호에 기초하여 상기 영상소프트의 소정의 체크라인에 대응하는 영상신호를 디지탈변환하는 클램핑회로부와 클럭신호생성부 및 아날로그-디지탈변환기 (10,12,14)와, 상기 영상신호의 화면비에 기초하는 영상영역과 블랭킹영역을 검출하기 위해 체크라인(수직주사라인)에 대한 데이터변환신호를 생성하는 수직리세트회로부와 수평동기신호카운터 및 화면체크신호생성부(16,18,20), 상기 소정의 클럭신호에 기초하여 상기 체크라인에 대응하는 상기 디지탈변환된 휘도데이터의 화면비 검출을 위한 2진-16진 데이터변환처리를 수행하는 데이터변환부(22), 상기 16진 데이터변환된 휘도 데이터를 기초로 상기 영상소프트의 블랭킹영역과 영상신호영역의 판정을 행하는 화면비검출부(24) 상기 검출된 화면표시영역을 기초로 화면비 변경을 설정하는 화면비변경설정부(26), 상기 화면비 변경의 설정에 따라 상기 영상소프트의 화면비 변경을 제어하는 제어부(28)를 포함하여 구성되어, 입력되는 영상소프트의 영상신호에 포함된 블랭킹영역의 상태를 판정하여 적절한 화면비의 영상이 표시되도록 자동 변환해주는 것이다.The present invention relates to a wide aspect automatic aspect ratio conversion circuit adapted to adaptively convert an aspect ratio of a cinema mode to an aspect ratio of an image software input to a 16: 9 aspect ratio. A clamping circuit section, a clock signal generator, and an analog-digital converter (10, 12, 14) for digitally converting a video signal corresponding to a predetermined check line of the video software on the basis of a predetermined clock signal obtained; A vertical reset circuit unit for generating a data conversion signal for a check line (vertical scan line), a horizontal synchronous signal counter and a screen check signal generator 16, 18, and 20 for detecting an image area and a blanking area based on an aspect ratio; Binary-hexadecimal for detecting an aspect ratio of the digitally converted luminance data corresponding to the check line based on the predetermined clock signal. A data conversion unit 22 which performs data conversion processing, and an aspect ratio detection unit 24 which determines the blanking area and the image signal area of the image soft based on the hexadecimal data converted luminance data. An aspect ratio change setting section 26 for setting the aspect ratio change on the basis and a control portion 28 for controlling the aspect ratio change of the image soft according to the setting of the aspect ratio change, and included in the input image signal of the image soft The state of the blanking area is determined and automatically converted to display an image having an appropriate aspect ratio.

Description

와이드비전의 자동 화면비 변환회로Wide Vision Automatic Aspect Ratio Conversion Circuit

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

제1도는 본 발명의 바람직한 실시예에 따른 와이드비전의 자동 화면비 변환회로의 구성을 나타낸 블럭도.1 is a block diagram showing the configuration of a wide-vision automatic aspect ratio conversion circuit according to a preferred embodiment of the present invention.

Claims (7)

입력되는 영상소프트의 화면비를 기초로 시네마모드에 의한 화면비로의 변경 표시가 가능한 와이드비전에 있어서, 상기 영상소프트의 영상신호로부터 얻어지는 소정의 클럭신호에 기초하여 상기 영상소프트의 소정의 체크라인에 대응하는 영상신호를 디지탈변환하는 데이터변환수단(10,12,14)과; 상기 영상신호의 화면비에 기초하는 영상영역과 블랭킹영역을 검출하기 위해 체크라인(수직주사라인)에 대한 데이터변환신호를 생성하는 화면영역검출신호생성수단(16,18,20); 상기 소정의 클럭신호에 기초하여 상기 체크라인에 대응하는 상기 디지탈변환된 휘도데이터의 레벨 검출을 위한 데이터변환처리를 수행하는 데이터처리수단(22); 상기 레벨검출을 위해 데이터변환처리된 휘도데이터를 기초로 상기 영상 소프트의 블랭킹영역과 영상신호영역의 검출을 행하는 화면비검출수단(24); 상기 검출된 화면표시영역을 기초로 화면비 변경을 설정하는 화면비변경설정수단(26); 상기 화면비 변경의 설정에 따라 상기 영상소프트의 화면비 변경을 제어하는 제어수단(28)을 포함하여 구성된 것을 특징으로 하는 와이드비전의 자동 화면비 변환회로.In a wide vision capable of changing and displaying the aspect ratio by the cinema mode based on the aspect ratio of the input image software, corresponding to the predetermined check line of the image software based on a predetermined clock signal obtained from the image signal of the image software. Data converting means (10, 12, 14) for digitally converting a video signal to be converted; Screen area detection signal generation means (16, 18, 20) for generating a data conversion signal for a check line (vertical scan line) to detect an image area and a blanking area based on the aspect ratio of the video signal; Data processing means (22) for performing data conversion processing for detecting a level of the digitally converted luminance data corresponding to the check line based on the predetermined clock signal; Aspect ratio detection means (24) for detecting a blanking area and an image signal area of said video software based on the luminance data subjected to data conversion processing for said level detection; Aspect ratio change setting means (26) for setting an aspect ratio change based on the detected screen display area; And a control means (28) for controlling the aspect ratio change of the image soft according to the setting of the aspect ratio change. 제1항에 있어서, 상기 데이터변환수단은 상기 영상소프트의 지정된 체크라인에 대응하는 영상신호에서 분리된 휘도신호를 클램핑하는 클램프회로부(10)와, 상기 영상신호에서 분리된 수평동기신호에 위상동기되는 형태로 상기 소정의 클럭신호를 생성하는 클럭신호생성부(12), 그 클럭신호생성부(12)에서 생성된 클럭신호에 의해 제어되어 상기 클램핑된 체크라인의 휘도신호를 디지탈변환하는 아날로그-디지탈변환부(14)를 포함하여 구성된 것을 특징으로 하는 와이드비전의 자동 화면비 변환회로.2. The data converting means of claim 1, wherein the data converting means comprises: a clamp circuit portion (10) for clamping a luminance signal separated from a video signal corresponding to a designated check line of the video software, and a phase synchronization with a horizontal synchronous signal separated from the video signal. A clock signal generation unit 12 for generating the predetermined clock signal, and a digital signal controlled by the clock signal generated by the clock signal generation unit 12 to digitally convert the luminance signal of the clamped check line. Wide aspect automatic aspect ratio conversion circuit comprising a digital conversion unit (14). 제1항에 있어서, 상기 화면영역검출신호생성수단은 상기 영상신호의 수직동기신호에 의해 체크라인의 지정을 위한 수직리세트신호를 생성하는 수직리세트회로부(16)와, 상기 제어수단(28)의 제어하에 수평동기신호를 카운트하는 수평동기신호카운터(18), 상기 제어수단(28)의 제어하에 상기 수평동기신호카운터(18)의 카운트결과를 기초로 상기 체크라인에 대응하는 휘도신호의 레벨을 판정하기 위한 신호를 생성하는 화면체크신호생성부(20)를 포함하여 구성된 것을 특징으로 하는 와이드비전의 자동 화면비 변환회로.2. The apparatus of claim 1, wherein the screen area detection signal generation means comprises: a vertical reset circuit portion 16 for generating a vertical reset signal for designation of a check line by a vertical synchronization signal of the video signal; The level of the luminance signal corresponding to the check line based on the count result of the horizontal synchronous signal counter 18 under the control of the horizontal synchronous signal counter 18 and the control means 28; And a screen check signal generation unit (20) for generating a signal for determination. 제1항에 있어서, 상기 데이터변환처리수단(22)은 상기 체크라인의 디지탈변환된 영상데이터를 레벨판정을 위한 16진데이터로 변환하는 2진-16진 변환기로 구성된 것을 특징으로 하는 와이드비전의 자동 화면비 변환회로.The wide vision apparatus according to claim 1, wherein the data conversion processing means (22) comprises a binary hexadecimal converter for converting the digitally converted image data of the check line into hexadecimal data for level determination. Automatic aspect ratio conversion circuit. 제1항 또는 제4항에 있어서, 상기 화면비검출수단(24)은 상기 체크라인에 대응하는 16진데이터가 소정치(OA : Hex) 이하이면 블랭킹영역으로 판정하고 그 16진데이터가 소정치 이상이면 영상영역으로 판정하도록 된 것을 특징으로 하는 와이드비전의 자동 화면비 변환회로.5. The apparatus according to claim 1 or 4, wherein the aspect ratio detecting means (24) determines that the hexadecimal data corresponding to the check line is a blanking area if the hexadecimal data is less than or equal to a predetermined value (OA: Hex) and the hexadecimal data is greater than or equal to a predetermined value. And the wide aspect ratio automatic aspect ratio conversion circuit. 제5항에 있어서, 상기 화면비검출수단(24)은 상기 지정된 체크라인에 대한 휘도데이터의 최소한 8필드분을 비교하여 화면비검출을 수행하도록 된 것을 특징으로 하는 와이드비전의 자동 화면비 변환회로.The wide aspect ratio automatic aspect ratio conversion circuit according to claim 5, wherein said aspect ratio detecting means (24) compares at least eight fields of luminance data with respect to said specified check line to perform aspect ratio detection. 제1항에 있어서, 상기 화면비변경설정수단(26)은 상기 화면비검출수단(24)에 의해 판정된 상기 영상소프트의 화면비를 기초로 상기 영상영역의 신장처리를 위한 화면비변경(시네마모드의 영상)을 위한 화면비변경설정신호를 제공하도록 된 것을 특징으로 하는 와이드비전의 자동 화면비 변환회로.The aspect ratio change setting means (26) according to claim 1, characterized in that the aspect ratio change setting means (26) changes aspect ratio for the stretching processing of the image area based on the aspect ratio of the image software determined by the aspect ratio detection means (24). Wide aspect automatic aspect ratio conversion circuit, characterized in that for providing an aspect ratio change setting signal for. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019950017662A 1995-06-28 1995-06-28 Automation screen ratio transformation circuit KR0178182B1 (en)

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KR1019950017662A KR0178182B1 (en) 1995-06-28 1995-06-28 Automation screen ratio transformation circuit

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Application Number Priority Date Filing Date Title
KR1019950017662A KR0178182B1 (en) 1995-06-28 1995-06-28 Automation screen ratio transformation circuit

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KR970004803A true KR970004803A (en) 1997-01-29
KR0178182B1 KR0178182B1 (en) 1999-05-01

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