JPS61111272U - - Google Patents
Info
- Publication number
- JPS61111272U JPS61111272U JP19563984U JP19563984U JPS61111272U JP S61111272 U JPS61111272 U JP S61111272U JP 19563984 U JP19563984 U JP 19563984U JP 19563984 U JP19563984 U JP 19563984U JP S61111272 U JPS61111272 U JP S61111272U
- Authority
- JP
- Japan
- Prior art keywords
- signal
- existence
- period
- television system
- detecting
- Prior art date
- Legal status (The legal status 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 status listed.)
- Pending
Links
- 239000002131 composite material Substances 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
- 238000007493 shaping process Methods 0.000 description 1
Landscapes
- Color Television Systems (AREA)
Description
第１図は本考案の実施例のブロツク図、第２図
及び第３図は第１図のブロツクの各部信号波形を
示す図である。
主要部分の符号の説明、１……バーストゲート
、２……ゲートパルス発生回路、４……波形整形
回路、５……時間比較回路、６……判別回路。
FIG. 1 is a block diagram of an embodiment of the present invention, and FIGS. 2 and 3 are diagrams showing signal waveforms at various parts of the block in FIG. 1. Explanation of symbols of main parts: 1... Burst gate, 2... Gate pulse generation circuit, 4... Waveform shaping circuit, 5... Time comparison circuit, 6... Discrimination circuit.
Claims (1)
に重畳された色信号周波数を有する信号の存在期
間を検出する手段を設け、この存在期間によりテ
レビジヨン方式の判別をなすようにしたことを特
徴とするテレビジヨン方式判別回路。 A television system characterized in that means is provided for detecting the period of existence of a signal having a color signal frequency superimposed on the back porch of a synchronization signal in a composite video signal, and the television system is determined based on this period of existence. Discrimination circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19563984U JPS61111272U (en) | 1984-12-24 | 1984-12-24 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19563984U JPS61111272U (en) | 1984-12-24 | 1984-12-24 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61111272U true JPS61111272U (en) | 1986-07-14 |
Family
ID=30753239
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19563984U Pending JPS61111272U (en) | 1984-12-24 | 1984-12-24 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61111272U (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54149424A (en) * | 1978-05-15 | 1979-11-22 | Matsushita Electric Ind Co Ltd | Signal detector of television receiver |
-
1984
- 1984-12-24 JP JP19563984U patent/JPS61111272U/ja active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54149424A (en) * | 1978-05-15 | 1979-11-22 | Matsushita Electric Ind Co Ltd | Signal detector of television receiver |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPS61111272U (en) | ||
| JPS61111271U (en) | ||
| JPH0292283U (en) | ||
| JPS6338483U (en) | ||
| JPH02128487U (en) | ||
| JPS62151272U (en) | ||
| JPS6251887U (en) | ||
| JPS6364179U (en) | ||
| JPS6249371U (en) | ||
| JPS6381565U (en) | ||
| JPS6356826U (en) | ||
| JPS6438065U (en) | ||
| JPS61206365U (en) | ||
| JPH0266088U (en) | ||
| JPH0471088U (en) | ||
| JPS6433267U (en) | ||
| JPS6293863U (en) | ||
| JPS61202988U (en) | ||
| JPS6052765U (en) | Synchronous signal generation circuit in teletext receiver | |
| JPS6164759U (en) | ||
| JPS6074385U (en) | transcoder device | |
| JPS63152372U (en) | ||
| JPS6271975U (en) | ||
| JPS6295379U (en) | ||
| JPH021968U (en) |