KR970078434A - Synchronization signal generator of television receiver - Google Patents
Synchronization signal generator of television receiver Download PDFInfo
- Publication number
- KR970078434A KR970078434A KR1019960016862A KR19960016862A KR970078434A KR 970078434 A KR970078434 A KR 970078434A KR 1019960016862 A KR1019960016862 A KR 1019960016862A KR 19960016862 A KR19960016862 A KR 19960016862A KR 970078434 A KR970078434 A KR 970078434A
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- KR
- South Korea
- Prior art keywords
- synchronizing signal
- vertical
- signal
- horizontal
- generating
- Prior art date
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- Synchronizing For Television (AREA)
Abstract
본 발명은 안테나를 통해 수신되는 신호레벨의 변동 등으로 인하여 동기신호가 검출되지 않는 경우에 선국된 방송신호에 적합한 의사동기 신호를 발생시킬 수 있도록 된 텔레비젼 수상기의 동기신호 발생장치에 관한 것으로서, 복합영상신호로부터 수평 및 수직동기신호를 분리하는 동기분리수단과, 복합영상신호와 수평 및 수직동기신호를 근거로 영상처리를 실행하는 영상처리수단을 구비한 텔레비젼 수상기에 있어서, 상기 동기분리수단으로부터 출력되는 수평 및 수직동기신호의 주파수를 각각 검출하는 제1 및 제2주파수검출수단과, 상기 제1및 제2주파수검출수단에 의해 검출된 주파수데이터를 저장하기 위한 데이터 메모리, 상기 동기분리수단에서 출력되는 수직동기신호에 동기되어 소정의 레벨신호를 출력하는 타이머수단, 입력되는 수평 및 수직 주파수데이터에 대응하여 수평 및 수직동기신호를 생성하여 출력하는 동기발생수단, 소정의 스위칭제어신호에 따라 상기 동기 분리수단과 동기발생수단으로부터 출력되는 수평 및 수직동기신호를 선택적으로 상기 영상처리수단으로 입력하는 스위칭수단 및, 상기 데이터 메모리에 저장되어 있는 수평 및 수직 주파수데이터를 상기 동기발생수단에 공급함과 더불어 상기 타이머수단으로부터 출력되는 레벨신호에 동기하여 그 동기발생수단을 트리거시키고, 상기 동기분리수단으로부터 정상적인 동기신호가 출력되는지를 근거로 상기 스위칭수단을 스위칭제어하는 제어수단을 포함하여 구성된 것을 특징으로 한다.The present invention relates to a synchronizing signal generating apparatus for a television receiver capable of generating a pseudo synchronizing signal suitable for a broadcast signal selected when a synchronizing signal is not detected due to a fluctuation of a signal level received through an antenna, A video signal processing means for performing video processing on the basis of a composite video signal and a horizontal and vertical synchronization signal, the television receiver comprising: A first data memory for storing the frequency data detected by the first and second frequency detecting means; a second data memory for storing the frequency data detected by the first and second frequency detecting means; Timer means for outputting a predetermined level signal in synchronization with the vertical synchronizing signal, A vertical synchronizing signal generating means for generating horizontal synchronizing signal and vertical synchronizing signal in response to the vertical frequency data and outputting a horizontal synchronizing signal and a vertical synchronizing signal in response to the vertical frequency data, And supplies the horizontal and vertical frequency data stored in the data memory to the synchronous generating means and triggers the synchronous generating means in synchronization with the level signal output from the timer means, And control means for switching-controlling the switching means based on whether a normal synchronizing signal is outputted from the means.
Description
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is a trivial issue, I did not include the contents of the text.
제2도는 본 발명의 일실시예에 따른 동기신호 발생장치를 나타낸 블록구성도.FIG. 2 is a block diagram showing a synchronization signal generating apparatus according to an embodiment of the present invention; FIG.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019960016862A KR970078434A (en) | 1996-05-18 | 1996-05-18 | Synchronization signal generator of television receiver |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019960016862A KR970078434A (en) | 1996-05-18 | 1996-05-18 | Synchronization signal generator of television receiver |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| KR970078434A true KR970078434A (en) | 1997-12-12 |
Family
ID=66220863
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1019960016862A KR970078434A (en) | 1996-05-18 | 1996-05-18 | Synchronization signal generator of television receiver |
Country Status (1)
| Country | Link |
|---|---|
| KR (1) | KR970078434A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100555455B1 (en) * | 1998-11-11 | 2006-04-21 | 삼성전자주식회사 | Sync separation apparatus and method |
| KR100768812B1 (en) * | 2006-09-25 | 2007-10-19 | 주식회사 대우일렉트로닉스 | Apparatus and method for time correction in a television |
-
1996
- 1996-05-18 KR KR1019960016862A patent/KR970078434A/en not_active Application Discontinuation
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100555455B1 (en) * | 1998-11-11 | 2006-04-21 | 삼성전자주식회사 | Sync separation apparatus and method |
| KR100768812B1 (en) * | 2006-09-25 | 2007-10-19 | 주식회사 대우일렉트로닉스 | Apparatus and method for time correction in a television |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A201 | Request for examination | ||
| E902 | Notification of reason for refusal | ||
| E601 | Decision to refuse application |