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
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 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JPS58125463U (en) | Contour correction circuit for video signals | |
JPS58125466U (en) | delay device | |
JPS6045576U (en) | Line-sequential color difference signal processing circuit | |
JPS60163870U (en) | Video signal contour enhancement circuit | |
JPS60125683U (en) | television receiver | |
JPS58172272U (en) | TV receiver channel switching detection circuit | |
JPS601086U (en) | Contour correction circuit | |
JPS58144959U (en) | Shading correction circuit | |
JPS6126377U (en) | signal circuit | |
JPS5850765U (en) | Vertical contour correction circuit | |
JPS5946064U (en) | Vertical circuit frequency switching circuit | |
JPS6082887U (en) | video amplification circuit | |
JPS59111368U (en) | television receiver | |
JPS59108377U (en) | Audio/video detection circuit | |
JPS6030681U (en) | Beam index type color television receiver | |
JPS58123673U (en) | Screen distortion correction circuit for television receivers | |
JPS58101574U (en) | Video signal processing circuit | |
JPS5957061U (en) | blanking circuit | |
JPS6098971U (en) | Synchronous detection circuit | |
JPS5914454U (en) | Video signal processing device | |
JPS58127775U (en) | Image signal sampling pulse generation circuit | |
JPS61370U (en) | Video signal recording system | |
JPS58152059U (en) | Switching signal generation circuit | |
JPS6032859U (en) | Image distortion reduction circuit | |
JPS59169164U (en) | TV camera sensitivity control device |