JPS63191785U - - Google Patents
Info
- Publication number
- JPS63191785U JPS63191785U JP8210587U JP8210587U JPS63191785U JP S63191785 U JPS63191785 U JP S63191785U JP 8210587 U JP8210587 U JP 8210587U JP 8210587 U JP8210587 U JP 8210587U JP S63191785 U JPS63191785 U JP S63191785U
- Authority
- JP
- Japan
- Prior art keywords
- signal
- voltage detection
- detection means
- low saturation
- dark voltage
- 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
- 238000001514 detection method Methods 0.000 claims description 6
- 230000001629 suppression Effects 0.000 claims description 4
- 238000003384 imaging method Methods 0.000 claims 2
- 238000010586 diagram Methods 0.000 description 4
- 238000005070 sampling Methods 0.000 description 2
Landscapes
- Color Television Image Signal Generators (AREA)
- Processing Of Color Television Signals (AREA)
Description
第１図はこの考案に係る色ノイズ低減回路の一
例を示す要部の系統図、第２図はこれに使用され
る色フイルタの構成図、第３図はそのとき得られ
る撮像信号の波形図、第４図は従来の色ノイズ低
減回路の系統図である。
１……固体撮像素子、５……信号処理回路、６
……エンコーダ、７……変調回路、８……低彩度
抑圧回路、９……レベルコントロール回路、１０
……色ノイズ低減回路、２０……暗電圧検出手段
、２１……第１のサンプリングホールド回路、２
２……第２のサンプリングホールド回路、２３…
…比較回路、３０……色フイルタ、３０Ａ……色
フイルタ部、３０Ｂ……暗電圧検出部。
Fig. 1 is a system diagram of the main parts showing an example of a color noise reduction circuit according to this invention, Fig. 2 is a configuration diagram of a color filter used in this, and Fig. 3 is a waveform diagram of an image pickup signal obtained at that time. , FIG. 4 is a system diagram of a conventional color noise reduction circuit. 1... Solid-state image sensor, 5... Signal processing circuit, 6
... Encoder, 7 ... Modulation circuit, 8 ... Low saturation suppression circuit, 9 ... Level control circuit, 10
... Color noise reduction circuit, 20 ... Dark voltage detection means, 21 ... First sampling and hold circuit, 2
2... second sampling hold circuit, 23...
...Comparison circuit, 30...Color filter, 30A...Color filter section, 30B...Dark voltage detection section.
Claims (1)
号と色信号とに分離され、 分離された色信号が変調されて搬送色信号とな
されたのち、低彩度抑圧回路を経てエンコーダに
供給されるようになされると共に、 暗電圧検出手段が設けられ、 温度上昇に伴つて低彩度側レベルの抑圧量が大
きくなるように、上記暗電圧検出手段からの検出
信号に応じて上記低彩度抑圧回路が制御されるよ
うになされたことを特徴とする色ノイズ低減回路
。[Claims for Utility Model Registration] An imaging signal output from a solid-state imaging device is separated into a luminance signal and a color signal, and the separated color signal is modulated to become a carrier color signal, and then a low saturation suppression circuit In addition, a dark voltage detection means is provided, and the detection signal from the dark voltage detection means is supplied to the encoder through the dark voltage detection means so that the amount of suppression of the low saturation side level increases as the temperature rises. A color noise reduction circuit characterized in that the low saturation suppression circuit is controlled accordingly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8210587U JPS63191785U (en) | 1987-05-28 | 1987-05-28 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8210587U JPS63191785U (en) | 1987-05-28 | 1987-05-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63191785U true JPS63191785U (en) | 1988-12-09 |
Family
ID=30934459
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8210587U Pending JPS63191785U (en) | 1987-05-28 | 1987-05-28 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63191785U (en) |
-
1987
- 1987-05-28 JP JP8210587U patent/JPS63191785U/ja active Pending
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