KR960036637A - Screen Size Automatic Switching Device for Wide Television - Google Patents

Screen Size Automatic Switching Device for Wide Television Download PDF

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Publication number
KR960036637A
KR960036637A KR1019950007392A KR19950007392A KR960036637A KR 960036637 A KR960036637 A KR 960036637A KR 1019950007392 A KR1019950007392 A KR 1019950007392A KR 19950007392 A KR19950007392 A KR 19950007392A KR 960036637 A KR960036637 A KR 960036637A
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KR
South Korea
Prior art keywords
signal
screen mode
color signal
vhs
jack
Prior art date
Application number
KR1019950007392A
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Korean (ko)
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KR0154653B1 (en
Inventor
고춘석
Original Assignee
배순훈
대우전자 주식회사
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Application filed by 배순훈, 대우전자 주식회사 filed Critical 배순훈
Priority to KR1019950007392A priority Critical patent/KR0154653B1/en
Publication of KR960036637A publication Critical patent/KR960036637A/en
Application granted granted Critical
Publication of KR0154653B1 publication Critical patent/KR0154653B1/en

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/01—Conversion of standards, e.g. involving analogue television standards or digital television standards processed at pixel level
    • H04N7/0117—Conversion of standards, e.g. involving analogue television standards or digital television standards processed at pixel level involving conversion of the spatial resolution of the incoming video signal
    • H04N7/0122—Conversion of standards, e.g. involving analogue television standards or digital television standards processed at pixel level involving conversion of the spatial resolution of the incoming video signal the input and the output signals having different aspect ratios
    • 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

Abstract

본 발명은 현재 와이어 텔레비전에 설정된 화면모드를 외부입력소오스로부터의 외부입력화면모드로 자동절환시켜 주도록 된 와이드 텔레비전의 화면크기 자동절환장치를 제공하기 위한 것이다.The present invention is to provide a screen size automatic switching device for a wide television configured to automatically switch the screen mode currently set in the wire television to an external input screen mode from an external input source.

이를 위해 본 발명은, 와이드 텔레비전에서, S-VHS잭(18)을 통해 전송되는 외부입력신호로부터 현재의 화면모드판정용 신호를 검출하는 화면모드신호검출부(20)와, 상기 검출된 신호를 기초로 현재의 화면모드의 절환여부를 판정한 후 소정의 제어신호를 출력하는 제어부(22) 및, 상기 제어부(22)로부터의 제어신호에 따라 수평증폭부(24)로 소정의 증폭율보정신호를 주어 해당 화면모드의 절환이 행해지도록 하는 수평폭보정회로부(26)를 추가로 구비하여 구성되고, 외부입력소오스로부터 기준화면모드용 외부복합영상신호가 전송되면 상기 S-VHS잭(18)의 색신호단자(C)에는 색신호만이 실리는 반면, 상기 외부입력소오스로부터 확대화면모드용 외부복합영상신호가 전송되면 상기 S-VHS잭(18)의 색신호단자(C)에는 색신호와 소정의 직류성분의 신호가 함께 실리게 되며, 상기 화면모드신호검출부(20)는 상기 S-VHS잭(18)의 색신호단자(C)로부터 입력되는 색신호와 그 색신호에 실려 있을 수 있는 소정의 직류성분의 신호중에서 색신호를 제거하기 위한 필터부(21)와, 상기 필터부(21)를 통해 인가되는 직류성분의 신호유무에 따라 스위칭동작하면서 현재의 화면모드판정용 신호를 상기 제어부(22)로 인가시키는 스위칭트랜지스터(Q1)로 구성된 것이다.To this end, the present invention, in the wide television, screen mode signal detection unit 20 for detecting the current screen mode determination signal from the external input signal transmitted through the S-VHS jack 18, and based on the detected signal The control unit 22 outputs a predetermined control signal after determining whether the current screen mode is switched, and the predetermined amplification rate correction signal is supplied to the horizontal amplification unit 24 according to the control signal from the control unit 22. And a horizontal width correction circuit section 26 for switching the corresponding screen mode, and the color signal of the S-VHS jack 18 when the external composite video signal for the reference screen mode is transmitted from an external input source. While only the color signal is loaded on the terminal C, when the external composite video signal for the enlarged picture mode is transmitted from the external input source, the color signal terminal C of the S-VHS jack 18 is connected to the color signal and a predetermined DC component. Signal with silly The screen mode signal detector 20 is a filter for removing a color signal from a color signal input from the color signal terminal C of the S-VHS jack 18 and a signal of a predetermined DC component which may be carried in the color signal. And a switching transistor Q1 for applying a current screen mode determination signal to the control unit 22 while switching according to the presence or absence of a signal of a DC component applied through the filter unit 21. .

Description

와이드 텔레비전의 화면크기 자동절환장치Screen Size Automatic Switching Device for Wide Television

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

제2도는 본 발명의 일실시예에 따른 와이드 텔레비전의 화면크기 자동절환장치의 블럭구성도, 제3도는 제2도에 도시된 화면모드신호검출부의 일예를 나타낸 회로도, 제4도는 제2도에 도시된 제어부의 제어처리순서 및 제어내용을 나타낸 플로우챠트이다.2 is a block diagram of a screen size automatic switching device of a wide television according to an embodiment of the present invention, FIG. 3 is a circuit diagram showing an example of the screen mode signal detection unit shown in FIG. 2, and FIG. It is a flowchart which shows the control process procedure and control content of the shown control part.

Claims (3)

와이드 텔레비전에 있어서, S-VHS잭(18)을 통해 전송되는 외부입력신호로부터 현재의 화면모드판저용 신호를 검출하는 화면모드신호검출부(20)와, 상기 검출된 신호를 기초로 현재의 화면모드의 절환여부를 판정한 후 소정의 제어신호를 출력하는 제어부(22) 및, 상기 제어부(22)로부터의 제어신호에 따라 수평증폭부(24)로 소정의 증폭율보정신호를 주어 해당 화면모드로의 절환이 행해지도록 하는 수평폭보정회로부(26)를 추가로 구비하여 구성된 것을 특징으로 하는 와이드 텔레비전의 화면크기 자동절환장치.In a wide television, a screen mode signal detection unit (20) for detecting a current screen mode flasher signal from an external input signal transmitted through an S-VHS jack (18), and a current screen mode based on the detected signal. The control unit 22 outputs a predetermined control signal after determining whether the switching is performed, and a predetermined amplification factor correction signal is supplied to the horizontal amplification unit 24 according to the control signal from the control unit 22 to return to the corresponding screen mode. And a horizontal width compensating circuit section (26) for switching between the screens. 제1항에 있어서, 외부입력소오스로부터 기준화면용 외부복합영상신호가 전송되면 상기 S-VHS잭(18)의 색신호단자(C)에는 색신호만이 실리는 반면, 상기 외부입력소오스로부터 확대화면모드용 외부복합영상신호가 전송되면 상기 S-VHS잭(18)의 색신호단자(C)에는 색신호와 소정의 직류성분의 신호가 함께 실리는 것을 특징으로 하는 와이드 텔레비전의 화면크기 자동절환장치.The display device according to claim 1, wherein when the external composite video signal for the reference screen is transmitted from the external input source, only the color signal is loaded on the color signal terminal C of the S-VHS jack 18, while the enlarged picture mode is received from the external input source. Color signal terminal (C) of the S-VHS jack (18) when the external composite video signal is transmitted, the screen size automatic switching device for a wide television, characterized in that the signal of the predetermined DC component is carried together. 제1항에 또는 제2항에 있어서, 상기 화면모드신호검출부(20)는 상기 S-VHS잭(18)(18)의 색신호단자(C)로부터 입력되는 색신호와 그 색신호에 실려 있을 수 있는 소정의 직류성분의 신호중에서 색신호를 제거하기 위한 필터부(21)와, 상기 필터부(21)을 통해 인가되는 직류성분의 신호유무에 따라 스위칭동작하면서 현재의 화면모드판정용 신호를 상기 제어부(22)로 인가시키는 스위칭트랜지스터(Q1)로 구성된 것을 특징으로 하는 와이드 텔레비전 화면크기 자동절환장치.3. The screen mode signal detection unit 20 according to claim 1 or 2, wherein the screen mode signal detection unit 20 includes a color signal input from the color signal terminal C of the S-VHS jacks 18 and 18 and a predetermined color signal. The filter unit 21 for removing a color signal from the signal of the DC component of the control unit 22 and the control unit 22 to the current screen mode determination signal while switching operation in accordance with the presence or absence of the signal of the DC component applied through the filter unit 21 A wide television screen size automatic switching device, characterized in that consisting of a switching transistor (Q1) to be applied. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019950007392A 1995-03-31 1995-03-31 Apparatus for automatically switching screen size of wide tv KR0154653B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019950007392A KR0154653B1 (en) 1995-03-31 1995-03-31 Apparatus for automatically switching screen size of wide tv

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Application Number Priority Date Filing Date Title
KR1019950007392A KR0154653B1 (en) 1995-03-31 1995-03-31 Apparatus for automatically switching screen size of wide tv

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KR960036637A true KR960036637A (en) 1996-10-28
KR0154653B1 KR0154653B1 (en) 1998-11-16

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