KR970057293A - Sub picture reproducing device according to weak signal detection of TV with PIP function - Google Patents

Sub picture reproducing device according to weak signal detection of TV with PIP function Download PDF

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Publication number
KR970057293A
KR970057293A KR1019950057819A KR19950057819A KR970057293A KR 970057293 A KR970057293 A KR 970057293A KR 1019950057819 A KR1019950057819 A KR 1019950057819A KR 19950057819 A KR19950057819 A KR 19950057819A KR 970057293 A KR970057293 A KR 970057293A
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KR
South Korea
Prior art keywords
main
signal
sub
channel
voice
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KR1019950057819A
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Korean (ko)
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KR0169698B1 (en
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김성준
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배순훈
대우전자 주식회사
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Priority to KR1019950057819A priority Critical patent/KR0169698B1/en
Publication of KR970057293A publication Critical patent/KR970057293A/en
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Publication of KR0169698B1 publication Critical patent/KR0169698B1/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
    • H04B—TRANSMISSION
    • H04B17/00—Monitoring; Testing
    • H04B17/30—Monitoring; Testing of propagation channels
    • H04B17/309—Measuring or estimating channel quality parameters
    • H04B17/318—Received signal strength
    • 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
    • H04N5/60—Receiver circuitry for the reception of television signals according to analogue transmission standards for the sound signals
    • H04N5/607—Receiver circuitry for the reception of television signals according to analogue transmission standards for the sound signals for more than one sound signal, e.g. stereo, multilanguages
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2231/00—Applications
    • H01H2231/036—Radio; TV

Abstract

본 발명은 PIP기능을 갖춘 텔레비전의 약신호검출에 따른 부화면재생장치에 관한 것으로, PIP모드에 따른 복수의 주/부채널의 동시선국이 가능한 복수의 선국수단(2,4,6,8)과, 상기 선국된 주채널의 방송신호에서 수평동기신호를 추출하는 수평동기추출수단(10,12), 상기 추출된 수평동기신호의 약신호상태를 검출하는 약신호검출수단(14), PIP모드에 따라 주/부채널이 주/부화면으로서 신호처리가능하도록 스위칭절환되는 모드스위치수단(16), 상기 모드스위칭수단(16)을 통한 주화면에 대응하는 채널의 영상신호를 복합영상신호의 형태로 영상처리하는 주영상처리수단(18), 상기 모드스위칭수단(16)을 통한 부화면에 대응하는 채널의 영상신호를 복합영상신호의 형태로 영상처리하는 부영상처리수단(20), 상기 주/부영상처리된 복합영상신호에 의한 주/부화면의 화면표시위치를 지정하여 출력하는 주/부화면지정출력수단(22,24), 상기 모드스위치수단(16)을 통한 주/부음성신호를 음성신호처리하는 음성신호처리수단(26), 상기 음성신호처리된 음성신호가 주음성으로서 외부재생되도록 함과 더불어, 음성으로서 음성출력잭(32)을 통히 별도로 재생가능하도록 스위칭절환하는 주/부음성스위치수단(28) 및, 소정 채널의 주화면재생시에 상기 약신호검출수단(14)에 의해 해당 채널의 수평동기신호가 약신호상태인 것으로 검출되면 PIP모드를 실행하여 상기 모드스위치부(16)를 제어함에 의해 주화면재생되던 채널이 부화면 재생되도록 함과 더불어, 주화면의 방송채널이 상승절환되어 주화면재생될 수 있도록 하고, 상기 주/부음성스위치부(28)를 제어하여 약신호가 검출되는 채널의 음성신호가 주음성으로서 재생될 수 있도록 제어하는 제어수단(36)을 구비하여 구성된 것을 특징으로 한다.The present invention relates to a sub picture reproducing apparatus according to weak signal detection of a television having a PIP function, comprising: a plurality of tuning means (2, 4, 6, 8) capable of simultaneously tuning a plurality of main / sub channels according to the PIP mode; And horizontal sync extracting means (10, 12) for extracting a horizontal sync signal from the broadcast signal of the tuned main channel, weak signal detecting means (14) for detecting a weak signal state of the extracted horizontal sync signal, and a PIP mode. Mode switch means 16 for switching the main / sub-channel as a main / sub picture according to a signal processing, and a video signal of a channel corresponding to the main picture through the mode switching means 16 in the form of a composite video signal. The main image processing means 18 for processing an image, the sub image processing means 20 for processing an image signal of a channel corresponding to the sub-screen through the mode switching means 16 in the form of a composite video signal, and the main image processing means. Main / Sub picture by composite video signal Main / sub picture designation output means (22,24) for designating and displaying a screen display position, voice signal processing means (26) for processing a voice signal of the main / sub audio signal through the mode switch means (16), and the voice The main / sub audio switch means 28 for switching the signal signal to be reproduced externally as a main voice and capable of being reproduced separately through the voice output jack 32 as voice, and at the time of reproducing the main screen of a predetermined channel. When the weak signal detecting means 14 detects that the horizontal synchronization signal of the corresponding channel is in the weak signal state, the channel that was reproduced on the main screen is reproduced by executing the PIP mode and controlling the mode switch unit 16. In addition, the broadcast channel of the main screen is up-converted so that the main screen can be reproduced, and the main / sub audio switch unit 28 is controlled to reproduce the audio signal of the channel where the weak signal is detected as the main audio. Number And a control means 36 for controlling so as to be characterized in that configured.

Description

PIP기능을 갖춘 텔레비전의 약신호검출에 따른 부화면재생장치Sub picture reproducing device according to weak signal detection of TV with PIP function

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

제1도는 본 발명에 따른 PIP기능을 갖춘 텔레비전의 약신호검출에 따른 부화면재생장치를 나타낸 블럭구성도.1 is a block diagram showing a sub picture reproducing apparatus according to weak signal detection of a television having a PIP function according to the present invention;

제2도는 본 발명의 바람직한 실시예에 따른 수평동기신호의 약신호상태검출에 의해 부화면재생되는 상태를 나타낸 도면.2 is a view showing a state in which a sub-screen is reproduced by detecting a weak signal state of a horizontal synchronization signal according to a preferred embodiment of the present invention.

제3도는 본 발명의 동작을 설명하는 플로우차트이다.3 is a flowchart illustrating the operation of the present invention.

Claims (1)

PIP모드에 따른 복수의 주/부채널의 동시선국이 가능한 복수의 선국수단(2,4,6,8)과, 상기 선국된 주채널의 방송신호에서 수평동기신호를 추출하는 수평동기추출수단(10,12), 상기 추출된 수평동기신호의 약신호상태를 검출하는 약신호검출수단(14), PIP모드에 따라 주/부채널이 주/부화면으로서 신호처리가능하도록 스위칭절환되는 모드스위치수단(16), 상기 모드스위칭수단(16)을 통한 주화면에 대응하는 채널의 영상신호를 복합영상신호의 형태로 영상처리하는 주영상처리수단(18), 상기 모드스위칭수단(16)을 통한 부화면에 대응하는 채널의 영상신호를 복합영상신호의 형태로 영상처리하는 부영상처리수단(20), 상기 주/부영상처리된 복합영상신호에 의한 주/부화면의 화면표시위치를 지정하여 출력하는 주/부화면지정출력수단(22,24), 상기 모드스위치수단(16)을 통한 주/부음성신호를 음성신호처리하는 음성신호처리수단(26), 상기 음성신호처리된 음성신호가 주음성으로서 외부재생되도록 함과 더불어, 음성으로서 음성출력잭(32)을 통히 별도로 재생가능하도록 스위칭절환하는 주/부음성스위치수단(28) 및, 소정 채널의 주화면재생시에 상기 약신호검출수단(14)에 의해 해당 채널의 수평동기신호가 약신호상태인 것으로 검출되면 PIP모드를 실행하여 상기 모드스위치부(16)를 제어함에 의해 주화면재생되던 채널이 부화면 재생되도록 함과 더불어, 주화면의 방송채널이 상승절환되어 주화면재생될 수 있도록 하고, 상기 주/부음성스위치부(28)를 제어하여 약신호가 검출되는 채널의 음성신호가 주음성으로서 재생될 수 있도록 제어하는 제어수단(36)을 구비하여 구성된 것을 특징으로 하는 PIP기능을 갖춘 텔레비전의 약신호검출에 따른 부화면재생장치.A plurality of tuning means (2, 4, 6, 8) capable of simultaneously tuning a plurality of main / sub-channels according to the PIP mode, and a horizontal synchronous extracting means for extracting a horizontal synchronizing signal from the broadcast signal of the selected main channel ( 10 and 12, weak signal detecting means 14 for detecting a weak signal state of the extracted horizontal synchronous signal, and mode switching means for switching the main / sub channel to be signal-processed as a main / sub picture according to the PIP mode (16), the main image processing means 18 for processing the image signal of the channel corresponding to the main screen through the mode switching means 16 in the form of a composite video signal, the negative through the mode switching means 16 Sub-image processing means for image processing the video signal of the channel corresponding to the screen in the form of a composite video signal, and outputs by designating the screen display position of the main / sub-screen by the main / sub-image processed composite video signal Main / sub picture designation output means (22,24), the mode switch means ( 16. The audio signal processing means 26 for processing the main / sub audio signal through the audio signal through the voice signal processing means 26, and the voice signal processed voice signal is reproduced externally as the main voice, and also through the voice output jack 32 as voice. PIP when the main / sub audio switch means 28 switching switching to be reproducible separately, and the weak signal detecting means 14 at the time of reproducing the main screen of a predetermined channel detect that the horizontal synchronization signal of the corresponding channel is in the weak signal state. By executing the mode, the mode switch unit 16 controls the channel reproduced on the main screen to reproduce the sub-picture, and the broadcast channel of the main screen is up-converted to reproduce the main screen, and the main / sub Tele-equipped with a PIP function characterized in that it comprises a control means 36 for controlling the voice switch unit 28 so that the voice signal of the channel where the weak signal is detected can be reproduced as the main voice. Sub picture reproducing apparatus according to the weak signal before detection. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019950057819A 1995-12-27 1995-12-27 Apparatus for reproducing sub-screen by detect of weak signal television having pip function KR0169698B1 (en)

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KR1019950057819A KR0169698B1 (en) 1995-12-27 1995-12-27 Apparatus for reproducing sub-screen by detect of weak signal television having pip function

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Application Number Priority Date Filing Date Title
KR1019950057819A KR0169698B1 (en) 1995-12-27 1995-12-27 Apparatus for reproducing sub-screen by detect of weak signal television having pip function

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KR970057293A true KR970057293A (en) 1997-07-31
KR0169698B1 KR0169698B1 (en) 1999-03-20

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