KR970031955A - PIP Screen Switching Stabilizer - Google Patents

PIP Screen Switching Stabilizer Download PDF

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Publication number
KR970031955A
KR970031955A KR1019950040786A KR19950040786A KR970031955A KR 970031955 A KR970031955 A KR 970031955A KR 1019950040786 A KR1019950040786 A KR 1019950040786A KR 19950040786 A KR19950040786 A KR 19950040786A KR 970031955 A KR970031955 A KR 970031955A
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KR
South Korea
Prior art keywords
switching
screen
pip
sub
picture
Prior art date
Application number
KR1019950040786A
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Korean (ko)
Other versions
KR100189503B1 (en
Inventor
이재경
Original Assignee
구자홍
엘지전자 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 구자홍, 엘지전자 주식회사 filed Critical 구자홍
Priority to KR1019950040786A priority Critical patent/KR100189503B1/en
Publication of KR970031955A publication Critical patent/KR970031955A/en
Application granted granted Critical
Publication of KR100189503B1 publication Critical patent/KR100189503B1/en

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/04—Synchronising
    • H04N5/06—Generation of synchronising signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/222—Studio circuitry; Studio devices; Studio equipment
    • H04N5/262—Studio circuits, e.g. for mixing, switching-over, change of character of image, other special effects ; Cameras specially adapted for the electronic generation of special effects
    • H04N5/268—Signal distribution or switching
    • 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
    • H04N9/00—Details of colour television systems
    • H04N9/12—Picture reproducers
    • H04N9/16—Picture reproducers using cathode ray tubes

Abstract

본 발명은 티브이의 PIP화면에 있어, 주화면을 절환하거나 부화면을 절환하게 될 때, 동기신호의 불안정으로 인하여 피아이피 화면이 흔들리게 되는 과도현상을 방지하고자한 피아이피(PIP) 화면 절환 안정화 장치에 관한 것이다.The present invention is to stabilize the PIP screen switching to prevent the transient phenomenon in which the PIP screen is shaken due to the instability of the synchronization signal in the PIP screen of the TV, when switching the main screen or sub-screen Relates to a device.

부화면의 위치는 주화면에 연계되어 정해지게 되는 바, 종래 PIP 화면 절환 장치는 시청자가 주화면 또는 부화면의 채널을 절환하게 되면, 절환되어지는 화면의 동기신호의 불안정으로 인하여 일정시간동안 PIP처리부에 입력되는 수직, 수평동기신호도 흔들리므로 PIP화면의 위치가 고정되지 않고 흔들릴 수 있게 된다.The position of the sub picture is determined in association with the main picture. In the conventional PIP picture switching device, when a viewer switches a channel of the main picture or a sub picture, the PIP for a predetermined time due to the instability of the synchronization signal of the picture being switched Since the vertical and horizontal synchronous signals input to the processor are also shaken, the position of the PIP screen can be shaken without being fixed.

본 발명에서는 상기와 같은 종래의 문제점을 해결하기 위하여 스위칭수단을 구비하여 채널 절환되어지는 화면의 동기신호는 불안정하므로 절환되어지지 않는 측의 동기신호를 절환되어지는 측의 동기신호가 안정화 될 때까지 인가하여 주므로서, 채널 절환시의 동기신호 불안정으로 인하여 발생되는 PIP화면의 흔들림을 방지하여 주화면 및 부화면의 채널절환시에도 깨끗하고 위치가 고정된 PIP화면을 시청자에게 제공하도록 하는 것으로, TV/CATV등과 같은 TV/외부입력등과 같은 신호절환시에도 적용할 수 있다.In the present invention, in order to solve the above-mentioned problems, the synchronization signal of the screen to be switched is provided with a switching means, which is unstable, until the synchronization signal of the switchable side is stabilized. By preventing the shaking of the PIP screen caused by the instability of the synchronization signal during channel switching, it provides the viewer with a clean and fixed PIP screen even when switching between the main screen and the sub-screen. It is also applicable to signal switching such as TV / external input such as / CATV.

Description

피아이피(PIP) 화면 절환 안정화 장치PIP Screen Switching Stabilizer

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

제2도는 본 발명 피아이피(PIP) 화면 절환 안정화 장치의 블럭 구성도.2 is a block diagram of a PIP screen switching stabilization device of the present invention.

Claims (2)

각각의 안테나(1, 5)를 구비하고, 각각의 안테나(1, 5)로 수신된 티브이신호를 처리하여 PIP처리부(9)에서 PIP처리하여 주화면과 부화면을 CPT(10)로 표시하여 주는 티브이에 있어서, 상기 PIP처리부(9) 인가되는 주화면을 위한 수직, 수평 동기신호(VS, HS)를 스위칭하여 선택출력시키는 제1 스위칭부(13)와, 상기 PIP처리부(9)에 인가되는 부화면을 위한 수직, 수평 동기신호(VS, HS)를 스위칭하여 선택출력시키는 제 2스위칭부(14)로 구성되어, 마이콤(12)에서 주화면 채널절환시에는 부화면 수직, 수평 동기신호(VS, HS)를 일정시간동안 PIP처리부(9)에 인가하도록 제 1스위칭부(13)를 스위칭시키고, 부화면 채널절환시에는 주화면 수직, 수평 동기신호(VS, HS)를 일정시간동안 PIP처리부(9)에 인가하도록 제 2스위칭부(14)를 스위칭시키도록 제어함을 특징으로 하는 피아이피(PIP) 화면 절환 안정화 장치.Each antenna 1, 5 is provided, and the TV signal received by each antenna 1, 5 is processed by PIP processing unit 9 to display the main screen and the sub-screen as CPT 10 In the TV, the PIP processing unit 9 is applied to the PIP processing unit 9 and the first switching unit 13 for switching and outputting the vertical and horizontal synchronizing signals VS and HS for the main screen. And a second switching unit 14 for switching and outputting the vertical and horizontal synchronizing signals VS and HS for the sub-screens to be selected. When the main screen channel is switched in the microcomputer 12, the sub-screen vertical and horizontal synchronizing signals are selected. The first switching unit 13 is switched to apply (VS, HS) to the PIP processing unit 9 for a predetermined time, and during sub-channel channel switching, the main screen vertical and horizontal synchronization signals VS and HS are applied for a predetermined time. PIP, characterized in that the control to switch the second switching unit 14 to be applied to the PIP processing unit (9) Screen change stabilizer. 제1항에 있어서, 상기 마이콤(12)의 제 1스위칭부(13) 및 제 2스위칭부(14)의 스위칭제어를 티브이 / 외부입력 절환시에도 적용하는 것을 특징으로 하는 피아이피(PIP) 화면 절환 안정화 장치.The PIP screen of claim 1, wherein the switching control of the first switching unit 13 and the second switching unit 14 of the microcomputer 12 is also applied at the time of TV / external input switching. Switching stabilization device. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019950040786A 1995-11-10 1995-11-10 Apparatus for settled switching pip KR100189503B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019950040786A KR100189503B1 (en) 1995-11-10 1995-11-10 Apparatus for settled switching pip

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019950040786A KR100189503B1 (en) 1995-11-10 1995-11-10 Apparatus for settled switching pip

Publications (2)

Publication Number Publication Date
KR970031955A true KR970031955A (en) 1997-06-26
KR100189503B1 KR100189503B1 (en) 1999-06-01

Family

ID=19433727

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019950040786A KR100189503B1 (en) 1995-11-10 1995-11-10 Apparatus for settled switching pip

Country Status (1)

Country Link
KR (1) KR100189503B1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100661369B1 (en) * 2000-01-13 2006-12-27 삼성전자주식회사 An apparatus for stabilizing a sync. signal in a video display system

Also Published As

Publication number Publication date
KR100189503B1 (en) 1999-06-01

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