JPH036379U - - Google Patents
Info
- Publication number
- JPH036379U JPH036379U JP6582389U JP6582389U JPH036379U JP H036379 U JPH036379 U JP H036379U JP 6582389 U JP6582389 U JP 6582389U JP 6582389 U JP6582389 U JP 6582389U JP H036379 U JPH036379 U JP H036379U
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- horizontal
- signal
- vertical
- sawtooth wave
- 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
- 239000000284 extract Substances 0.000 claims 1
- 230000000737 periodic effect Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
- 238000003708 edge detection Methods 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
Landscapes
- Studio Circuits (AREA)
Description
第１図は、本考案の全体構成を示すブロツク図
、第２図は本考案の動作を示すタイムチヤート、
第３図は従来技術の構成を示すブロツク図、第４
図、第５図は従来例の動作を示すタイムチヤート
、第６図は、Ｈ・Ｖパルス抽出回路の一例、第７
図はノコギリ波発生回路の一例、第８図はゲート
回路とエツジ検出加算回路の一例である。
２……Ｈ・Ｖパルス抽出回路、３，４……ノコ
ギリ波発生回路、５，６……比較回路、７，８…
…ゲート回路、１１……エツジ検出加算回路。
FIG. 1 is a block diagram showing the overall configuration of the present invention, and FIG. 2 is a time chart showing the operation of the present invention.
Figure 3 is a block diagram showing the configuration of the prior art;
5 is a time chart showing the operation of the conventional example, FIG. 6 is an example of the H/V pulse extraction circuit, and FIG. 7 is a time chart showing the operation of the conventional example.
The figure shows an example of a sawtooth wave generating circuit, and FIG. 8 shows an example of a gate circuit and an edge detection adding circuit. 2... H/V pulse extraction circuit, 3, 4... Sawtooth wave generation circuit, 5, 6... Comparison circuit, 7, 8...
...gate circuit, 11...edge detection addition circuit.
Claims (1)
走査周期の同期パルスを各々抽出する回路と、該
各々の周期パルス入力により発生出力値が初期化
される各々のノコギリ波発生回路と、該各々のノ
コギリ波入力が規定したしきい値レベルにある間
、レベル“１”を出力する各々の比較回路と、該
各々の比較回路の出力信号から水平、垂直方向の
エツジ部分に相当する信号を検出し、上記映像信
号に加算する回路とからなるグラチキユール発生
器において、上記水平、垂直各々の同期パルスを
用いて上記比較回路出力のゲート処理を行なうこ
とを特徴とするグラチキユール発生器。 A circuit that extracts synchronization pulses with a horizontal scanning period and a vertical scanning period from a video signal with a synchronization signal, each sawtooth wave generation circuit whose generated output value is initialized by the input of each of the periodic pulses, and each of the circuits. While the sawtooth wave input is at a specified threshold level, each comparison circuit outputs a level "1" and a signal corresponding to the edge portion in the horizontal and vertical directions is detected from the output signal of each comparison circuit. , and a circuit for adding to the video signal, wherein the horizontal and vertical synchronization pulses are used to gate the output of the comparator circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6582389U JPH036379U (en) | 1989-06-07 | 1989-06-07 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6582389U JPH036379U (en) | 1989-06-07 | 1989-06-07 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH036379U true JPH036379U (en) | 1991-01-22 |
Family
ID=31598002
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6582389U Pending JPH036379U (en) | 1989-06-07 | 1989-06-07 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH036379U (en) |
-
1989
- 1989-06-07 JP JP6582389U patent/JPH036379U/ja active Pending