KR960013020A - Signal interference prevention device at the time of video mode change of TV receiver - Google Patents
Signal interference prevention device at the time of video mode change of TV receiver Download PDFInfo
- Publication number
- KR960013020A KR960013020A KR1019940023200A KR19940023200A KR960013020A KR 960013020 A KR960013020 A KR 960013020A KR 1019940023200 A KR1019940023200 A KR 1019940023200A KR 19940023200 A KR19940023200 A KR 19940023200A KR 960013020 A KR960013020 A KR 960013020A
- Authority
- KR
- South Korea
- Prior art keywords
- signal
- switching
- video
- interference prevention
- video mode
- Prior art date
Links
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- Picture Signal Circuits (AREA)
Abstract
본 발명은 텔레비전 수상기를 이용하여 비디오 프로그램을 시청할 때에 발생되는 rf신호에 의한 비디오 신호의 간섭을 방지할 수 있도록 된 tv의 비디오 모든 전환시의 신호간섭 방지장치에 관한 것으로서, 방송선국을 위한 튜너와, 이 튜너에 의해 선국된 방송신호로부터 복합영상신호를 검파하여 출력하는 IF회로 및, 스위칭신호(SW)에 따라 상기 IF회로로부터의 복합영상 신호와 비디오 신호를 선택적으로 처리하는 크로마 IC를 구비한 텔레비전 수상기에 있어서, 상기 비디오 모드시 상기 스위칭 신호(SW)에 따라 상기 크로마 IC의 AGC단자의 레벨을 접지레벨로 스위칭 하는 수단을 포함하여 구성된 것을 특징으로 한다.The present invention relates to a signal interference prevention apparatus for all video switching of a TV, which can prevent interference of a video signal by an rf signal generated when watching a video program using a television receiver. And an IF circuit for detecting and outputting a composite video signal from the broadcast signal tuned by this tuner, and a chroma IC for selectively processing the composite video signal and the video signal from the IF circuit in accordance with a switching signal SW. The television receiver, characterized in that it comprises a means for switching the level of the AGC terminal of the chroma IC to the ground level in accordance with the switching signal (SW) in the video mode.
Description
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음As this is a public information case, the full text was not included.
제1도는 일반적인 텔레비전 수상기의 요부구성을 나타낸 블록구성도.1 is a block diagram showing the main components of a general television receiver.
제2도는 본 발명의 제1실시예에 따른 텔레비너 수상기의 요부구성을 나타낸 블로구성도.2 is a blow configuration diagram showing the main components of the television receiver according to the first embodiment of the present invention.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019940023200A KR960013020A (en) | 1994-09-14 | 1994-09-14 | Signal interference prevention device at the time of video mode change of TV receiver |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019940023200A KR960013020A (en) | 1994-09-14 | 1994-09-14 | Signal interference prevention device at the time of video mode change of TV receiver |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| KR960013020A true KR960013020A (en) | 1996-04-20 |
Family
ID=66687010
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1019940023200A KR960013020A (en) | 1994-09-14 | 1994-09-14 | Signal interference prevention device at the time of video mode change of TV receiver |
Country Status (1)
| Country | Link |
|---|---|
| KR (1) | KR960013020A (en) |
-
1994
- 1994-09-14 KR KR1019940023200A patent/KR960013020A/en not_active Application Discontinuation
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| WITN | Withdrawal due to no request for examination |