KR960008270Y1 - Pip operating circuit of television receiver - Google Patents

Pip operating circuit of television receiver Download PDF

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Publication number
KR960008270Y1
KR960008270Y1 KR92015383U KR920015383U KR960008270Y1 KR 960008270 Y1 KR960008270 Y1 KR 960008270Y1 KR 92015383 U KR92015383 U KR 92015383U KR 920015383 U KR920015383 U KR 920015383U KR 960008270 Y1 KR960008270 Y1 KR 960008270Y1
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KR
South Korea
Prior art keywords
signal
pip
screen
circuit
switching
Prior art date
Application number
KR92015383U
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Korean (ko)
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KR940006705U (en
Inventor
안흥식
Original Assignee
배순훈
대우전자 주식회사
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Priority to KR92015383U priority Critical patent/KR960008270Y1/en
Publication of KR940006705U publication Critical patent/KR940006705U/en
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Publication of KR960008270Y1 publication Critical patent/KR960008270Y1/en

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    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/04—Synchronising
    • H04N5/08—Separation of synchronising signals from picture signals

Abstract

요약없음No summary

Description

텔레비젼 수상기의 동일 영상 PIP 동작회로Same picture PIP operation circuit of TV receiver

도면은 본고안에 따른 PIP 동작 회로도이다.Figure is a schematic diagram of a PIP operation according to the present invention.

표는 도면에서의 스위칭 IC의 입출력 로직을 보인것이다.The table shows the input and output logic of the switching IC in the figure.

* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings

1 : 스위칭 IC2 : PIP 회로1: switching IC2: PIP circuit

3 : 씽크 디텍트 회로A : 스위칭 신호3: sink detect circuit A: switching signal

B : 씽크 디텍트 회로 출력신호M : 모화면 신호B: Sync detect circuit output signal M: Mode screen signal

S : 자화면 신호S: Sub picture signal

본 고안은 PIP(PICTURE IN PICTURE) 기능을 갖춘 TV에 있어서, 모화면과 자화면의 선택이 가능하도록 한 PIP 동작 회로에 관한 것으로서, 특히 자화면의 무신호시 모화면과 동일한 영상을 자화면으로 출력이 가능하도록 한 텔레비젼 수상기의 동일영상 PIP 동작회로에 관한 것이다.The present invention relates to a PIP operation circuit that enables selection of a mother screen and a child screen in a TV having a PIP (PICTURE IN PICTURE) function. The present invention relates to an identical video PIP operation circuit of a television receiver capable of outputting.

여기서,PIP기능이라 함은 하나의 TV 화면 전체에 디스플레이되는 모화면과 TV화면 하단부의 모서리에 소정 직사각형 크기의 화면, 즉 자화면을 디스플레이할수 있도록 하는 기능을 말한다.Here, the PIP function refers to a function of displaying a screen having a predetermined rectangular size, that is, a child screen, on the corner of the mother screen and the lower portion of the TV screen displayed on one TV screen.

구성된 두개의 화면을 디스플레이할수 있는 기능을 말한다.It is the function to display two configured screens.

종래의 경우,TV의 PIP 기능은 모화면과 자화면이 상호 배타적인 영상만을 출력하도록 되어 있어서, 모화면으로 TV 방송을 출력하면 자화면으로는 비디오 신호만을 출력하여야 하므로 비디오 신호가 없을 경우, 자화면은 노이즈가 개입된 무신호 상태가 되었다.In the conventional case, the PIP function of the TV is to output only mutually exclusive images of the mother screen and the mother screen. When the TV broadcast is output to the mother screen, only the video signal should be output to the mother screen. The screen became a no-signal state in which noise was involved.

따라서, 자화면의 무신호시에 노이즈된 화면이 출력되어 불쾌감을 줄수도 있고, TV시청의 효율을 저하시키는 문제점이 있었다.Therefore, a noise screen may be output when there is no signal of the own screen, thereby causing discomfort, and there is a problem of lowering the efficiency of watching TV.

이에 본 고안의 목적은 상기와 같은 문제점을 감안하여 자화면의 신호출력 유무를 검출하여 무신호시에 모화면과 동일 영상을 출력할 수 있도록, 스위칭 IC를 구성하므로써 모화면과 자화면으로 동일 영상을 출력할수 있게 하고, PIP의 기능중 자화면의 스틸/슬로우 기능을 사용할수 있게 한 텔레비젼 수상기의 동일영상 PIP 동작회로를 제공함에 있다.Accordingly, an object of the present invention is to provide the same image to the mother screen and the mother screen by configuring a switching IC to detect the presence or absence of signal output of the mother screen and output the same image as the mother screen at the time of no signal in view of the above problems. The present invention provides an identical video PIP operation circuit of a television receiver which enables to output and to use a still / slow function of its own screen.

이하, 본 고안을 첨부된 도면을 참조하여 설명한다.Hereinafter, the present invention will be described with reference to the accompanying drawings.

도면은 본 고안에 따른 PIP 동작회로로, PIP 회로(2)를 갖추고 PIP 기능을 하는 TV에 있어서, TV 및 AV 신호를 입력으로 하여 스위칭 신호(A) 및 씽크 디렉트신호(B)에 의해 상기 PIP 회로(2)로 모화면 신호(M)및 자화면 신호(S)를 선택하여 출력하는 스위칭 IC(1)와, 상기 스위칭IC(1)에 의해 선택되어 상기 PIP 회로(2)로 출력되는 자화면 신호의 유무를 검출하여 씽크 디렉트신호(B)를 출력하는 씽크 디렉트 회로(3)로 구성되어진다.The figure shows a PIP operation circuit according to the present invention, in a TV having a PIP circuit 2 having a PIP function, wherein the PIP is inputted by a switching signal A and a sink direct signal B by inputting a TV and an AV signal. A switching IC 1 for selecting and outputting the mother screen signal M and the sub picture signal S to the circuit 2, and a person selected by the switching IC 1 and output to the PIP circuit 2. It consists of a sink direct circuit 3 which detects the presence or absence of a screen signal and outputs a sink direct signal B.

상기와 같이 구성된 본 고안의 동작을 도면 및 표를 참조하여 좀더 자세히 설명한다.The operation of the present invention configured as described above will be described in more detail with reference to the drawings and tables.

표는 본 고안에서의 스위칭 IC(1)의 입출력 로직표로서, 스위칭 IC(1)는 TV 및 AV신호가 인가된 상태에서 사용자에 의한 스위칭 신호(A)와, 자화면 출력신호(S)의 유무를 검출하여 자화면 신호가 있을 경우, 하이 ,없을 경우, 로우 를 출력하는 S.D회로(3)로 부터의 신호(B)에 의해 특정 화면을 선택하여 출력하게 되는데, PIP 기능 수행 상태에서 자화면 신호가 존재하지 않을 경우,자동적으로 모화면과 동일한 영상신호를 출력하도록 구성되어 있다.The table is an input / output logic table of the switching IC 1 according to the present invention, and the switching IC 1 is composed of the switching signal A and the sub picture output signal S by the user while the TV and AV signals are applied. If there is a sub picture signal when there is a sub picture signal, a high picture is displayed. If a specific picture is selected by the signal B from the SD circuit 3 which outputs a low value, the sub picture is displayed in the PIP function execution state. If no signal is present, it is configured to automatically output the same video signal as the mother screen.

이상에서 설명한 바와 같이,본 고안은 자화면의 무신호시 모화면과 동일한 영상을 출력하고,자화면의 스틸/슬로우 기능을 사용하여 모화면 시청과 동시에 스틸/슬로우 기능을 사용하여 모화면 시청과 동시에 스틸/슬로우 기능을 이용할 수 있게 하므로써 시청자 또는 사용자에게 TV의 시청 효율을 높이고, 사용 가능한 기능을 증대시키는 효과가 있다.As described above, the present invention outputs the same image as the mother screen at the time of no signal of the child screen, and uses the still / slow function of the child screen to simultaneously view the mother screen using the still / slow function. At the same time, by making the still / slow function available, the viewer or user can increase the viewing efficiency of the TV and increase the available functions.

Claims (1)

PIP 회로(2)를 갖추고,PIP기능을 하는 TV에 있어서, TV 및 PIP 신호를 입력하여 스위칭 신호(A) 및 씽크 디렉트 회로 출력 신호(B)에 의해 상기 PIP 회로(2)로 모화면 신호(M) 및 자화면 신호(S)를 선택하여 출력하는 스위칭 IC(1), 상기 스위칭 IC(1)에 의해 선택되어 상기 PIP 회로(2)로 출력되는 자화면 신호의 유무를 검출하여 씽크 디렉트 회로신호(B)를 출력하는 씽크 디렉트 회로(3),로 구성되는 것을 특징으로 하는 텔레비젼 수상기와 동일영상 PIP동작회로.In a TV having a PIP circuit (2) and having a PIP function, a TV and a PIP signal are inputted to the PIP circuit (2) by a switching signal (A) and a sink direct circuit output signal (B). M) and a switching IC 1 that selects and outputs the magnetic screen signal S, and detects the presence or absence of the magnetic screen signal selected by the switching IC 1 and output to the PIP circuit 2, and a sink direct circuit. And a sink direct circuit (3) for outputting a signal (B).
KR92015383U 1992-08-17 1992-08-17 Pip operating circuit of television receiver KR960008270Y1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR92015383U KR960008270Y1 (en) 1992-08-17 1992-08-17 Pip operating circuit of television receiver

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR92015383U KR960008270Y1 (en) 1992-08-17 1992-08-17 Pip operating circuit of television receiver

Publications (2)

Publication Number Publication Date
KR940006705U KR940006705U (en) 1994-03-25
KR960008270Y1 true KR960008270Y1 (en) 1996-09-25

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KR92015383U KR960008270Y1 (en) 1992-08-17 1992-08-17 Pip operating circuit of television receiver

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KR940006705U (en) 1994-03-25

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