JPS58125463U - Contour correction circuit for video signals - Google Patents
Contour correction circuit for video signalsInfo
- Publication number
- JPS58125463U JPS58125463U JP12228082U JP12228082U JPS58125463U JP S58125463 U JPS58125463 U JP S58125463U JP 12228082 U JP12228082 U JP 12228082U JP 12228082 U JP12228082 U JP 12228082U JP S58125463 U JPS58125463 U JP S58125463U
- Authority
- JP
- Japan
- Prior art keywords
- signal
- circuit
- contour correction
- video signals
- correction circuit
- 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
- 239000004065 semiconductor Substances 0.000 claims 3
- 230000010355 oscillation Effects 0.000 claims 2
- 230000001934 delay Effects 0.000 claims 1
- 230000003111 delayed effect Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 9
Landscapes
- Picture Signal Circuits (AREA)
- Processing Of Color Television Signals (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図はカラーテレビカメラのブロック図、第２図はカ
ラーテレビ受信機画面に再生された、カラーテレビカメ
ラのとらえた被写体を示す図、第３図は従来め輪郭補正
装置の原理を説明するブロック図、第４図り第１図及び
第３図の信号波形図、第５図、第７図、第８図及び第１
０図は本考案の各実施例を示すブロック図、第６図は第
５図及び第７図の動作を説明するための信号波形図、第
９図は第８図及び第１０図の動作を説明するための信号
波形図である。
１２．１４・・・広帯域−水平走査期間遅延回路、２５
．４４・・・減算回路、２７． ３１． ３６・・・低
域漏波回路、２２・・・入力端子、３０・・・出力端子
、２６、 ２９． ３２． ４３・・・加算回路、２８
・・・高域漏波回路、３９．４０・・・低域用−水平走
査期間遅延回路、４１．４２・・・高域用−水平走査期
間遅延、回路。Figure 1 is a block diagram of a color television camera, Figure 2 is a diagram showing a subject captured by the color television camera, reproduced on the screen of a color television receiver, and Figure 3 explains the principle of a conventional contour correction device. Block diagram, 4th diagram, signal waveform diagrams in Figures 1 and 3, Figures 5, 7, 8, and 1
Figure 0 is a block diagram showing each embodiment of the present invention, Figure 6 is a signal waveform diagram for explaining the operations in Figures 5 and 7, and Figure 9 is a diagram for explaining the operations in Figures 8 and 10. It is a signal waveform diagram for explanation. 12.14... Wideband-horizontal scanning period delay circuit, 25
．． 44... Subtraction circuit, 27. 31. 36...Low frequency leakage circuit, 22...Input terminal, 30...Output terminal, 26, 29. 32. 43...addition circuit, 28
. . . High frequency leakage circuit, 39.40 . . . Low frequency - horizontal scanning period delay circuit, 41.42 . . . High frequency - horizontal scanning period delay circuit.
Claims (1)
延回路と、周波数が色副搬送波に等しい発振回路と、該
半導体アナログ遅延回路で遅延された信号と入力映像信
号との差信号を作る減算回路とを備え、該発振回路の出
力信号の周波数と等しい信号、あるいはその＋の周波数
の信号を上記半導体アナログ遅延回路のクロック信号と
し、上記減算回路の出力に垂直方向輪郭補正信号を取り
出すことを特徴とするビデオ信号用輪郭補正回路。A semiconductor analog delay circuit that delays a video signal by one horizontal scanning period, an oscillation circuit whose frequency is equal to the color subcarrier, and a subtraction circuit that creates a difference signal between the signal delayed by the semiconductor analog delay circuit and the input video signal. A signal having a frequency equal to or higher than the frequency of the output signal of the oscillation circuit is used as a clock signal for the semiconductor analog delay circuit, and a vertical contour correction signal is taken out as an output of the subtraction circuit. Contour correction circuit for video signals.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12228082U JPS58125463U (en) | 1982-08-13 | 1982-08-13 | Contour correction circuit for video signals |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12228082U JPS58125463U (en) | 1982-08-13 | 1982-08-13 | Contour correction circuit for video signals |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS58125463U true JPS58125463U (en) | 1983-08-26 |
Family
ID=30101314
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12228082U Pending JPS58125463U (en) | 1982-08-13 | 1982-08-13 | Contour correction circuit for video signals |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58125463U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01236889A (en) * | 1988-03-17 | 1989-09-21 | Fujitsu General Ltd | Y/c separating circuit |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS49131725A (en) * | 1973-04-24 | 1974-12-17 | ||
| JPS5062325A (en) * | 1973-10-01 | 1975-05-28 |
-
1982
- 1982-08-13 JP JP12228082U patent/JPS58125463U/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS49131725A (en) * | 1973-04-24 | 1974-12-17 | ||
| JPS5062325A (en) * | 1973-10-01 | 1975-05-28 |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01236889A (en) * | 1988-03-17 | 1989-09-21 | Fujitsu General Ltd | Y/c separating circuit |
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