JPS6372986U - - Google Patents
Info
- Publication number
- JPS6372986U JPS6372986U JP1986167132U JP16713286U JPS6372986U JP S6372986 U JPS6372986 U JP S6372986U JP 1986167132 U JP1986167132 U JP 1986167132U JP 16713286 U JP16713286 U JP 16713286U JP S6372986 U JPS6372986 U JP S6372986U
- Authority
- JP
- Japan
- Prior art keywords
- signal
- circuit
- gain control
- forming
- color difference
- 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
- 238000006243 chemical reaction Methods 0.000 claims description 3
- 230000001629 suppression Effects 0.000 claims 2
- 238000001514 detection method Methods 0.000 claims 1
- 238000011144 upstream manufacturing Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 3
- 238000000926 separation method Methods 0.000 description 2
Landscapes
- Color Television Image Signal Generators (AREA)
- Processing Of Color Television Signals (AREA)
Description
第１図は本考案の一実施例のブロツク図、第２
図はＣＣＤ固体撮像素子の色分解フイルタの配置
を示す図、第３図は従来例のブロツク図、第４図
は被写体を示す図、第５図は各ラインの色分解フ
イルタと被写体の色との関係を示す図、第６図は
動作説明に供する信号波形図である。
１０…線順次同時変換回路、１１…利得制御信
号形成回路、１８…利得制御回路。
Figure 1 is a block diagram of one embodiment of the present invention;
The figure shows the arrangement of color separation filters in a CCD solid-state image sensor, Fig. 3 is a block diagram of a conventional example, Fig. 4 shows a subject, and Fig. 5 shows the color separation filters of each line and the color of the subject. FIG. 6 is a signal waveform diagram for explaining the operation. 10... line sequential simultaneous conversion circuit, 11... gain control signal forming circuit, 18... gain control circuit.
Claims (1)
検波回路を介して取り出された色差信号成分を１
Ｈ遅延線および１Ｈ切換回路から成る線順次同時
変換回路で２種類の同時化された色差信号とし、
この色差信号を平衡変調してクロマ信号とするビ
デオカメラにおける偽色信号抑圧回路において、 前記線順次同時変換回路の前段に設けられ、前
記色差信号成分の利得を制御する利得制御回路と
、 前記撮像素子の出力から取り出された輝度信号
に基づいて利得制御信号を形成して前記利得制御
回路に出力する利得制御信号形成回路とを備え、 前記利得制御信号形成回路は、前記輝度信号か
ら垂直輪郭信号を形成する垂直輪郭信号形成回路
を含み、この垂直輪郭信号に対応した前記利得制
御信号を出力することを特徴とするビデオカメラ
における偽色信号抑圧回路。[Claims for Utility Model Registration] Color difference signal components extracted from the output of the image sensor through a bandpass filter and a detection circuit are
A line-sequential simultaneous conversion circuit consisting of an H delay line and a 1H switching circuit produces two types of simultaneous color difference signals,
A false color signal suppression circuit in a video camera that performs balanced modulation on this color difference signal to produce a chroma signal includes: a gain control circuit that is provided upstream of the line-sequential simultaneous conversion circuit and controls the gain of the color difference signal component; a gain control signal forming circuit that forms a gain control signal based on a luminance signal extracted from the output of the element and outputs it to the gain control circuit, the gain control signal forming circuit forming a vertical contour signal from the luminance signal. 1. A false color signal suppression circuit for a video camera, comprising a vertical contour signal forming circuit for forming a vertical contour signal, and outputting the gain control signal corresponding to the vertical contour signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1986167132U JPS6372986U (en) | 1986-10-30 | 1986-10-30 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1986167132U JPS6372986U (en) | 1986-10-30 | 1986-10-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6372986U true JPS6372986U (en) | 1988-05-16 |
Family
ID=31098778
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1986167132U Pending JPS6372986U (en) | 1986-10-30 | 1986-10-30 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6372986U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03124191A (en) * | 1989-10-09 | 1991-05-27 | Sharp Corp | Color signal suppression circuit |
-
1986
- 1986-10-30 JP JP1986167132U patent/JPS6372986U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03124191A (en) * | 1989-10-09 | 1991-05-27 | Sharp Corp | Color signal suppression circuit |
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