JPH0398568U - - Google Patents
Info
- Publication number
- JPH0398568U JPH0398568U JP1990005670U JP567090U JPH0398568U JP H0398568 U JPH0398568 U JP H0398568U JP 1990005670 U JP1990005670 U JP 1990005670U JP 567090 U JP567090 U JP 567090U JP H0398568 U JPH0398568 U JP H0398568U
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- shading
- correction
- correction signal
- signal
- 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.)
- Granted
Links
Landscapes
- Picture Signal Circuits (AREA)
- Transforming Light Signals Into Electric Signals (AREA)
Description
第２図は、固体撮像素子を用いたテレビジヨン
カメラに発生するシエーデイング波形を示す図、
第１図は、本考案のシエーデイング補正回路のブ
ロツク図、第３図はその補正信号を示す図である
。
２，１０……ＮＰＮトランジスタ、３，１６，
１４……可変抵抗器、４，１２……コンデンサ、
５，１３……インピーダンス変換器、７，１５…
…反転増幅器、８，２１……加算器である。
FIG. 2 is a diagram showing a shading waveform generated in a television camera using a solid-state image sensor.
FIG. 1 is a block diagram of a shading correction circuit according to the present invention, and FIG. 3 is a diagram showing its correction signal. 2,10...NPN transistor, 3,16,
14...variable resistor, 4,12...capacitor,
5, 13... impedance converter, 7, 15...
...inverting amplifier, 8, 21... adder.
Claims (1)
レベル部に発生するシエーデイング信号に近似し
た補正信号を発生する回路と、この補正信号のレ
ベルを可変する回路を有したことを特徴とするシ
エーデイング補正回路。 A shading correction circuit comprising: a circuit that generates a correction signal that approximates a shading signal generated in the black level portion of a television camera using a solid-state image sensor; and a circuit that varies the level of this correction signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990005670U JP2518942Y2 (en) | 1990-01-26 | 1990-01-26 | Shading correction circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990005670U JP2518942Y2 (en) | 1990-01-26 | 1990-01-26 | Shading correction circuit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0398568U true JPH0398568U (en) | 1991-10-14 |
| JP2518942Y2 JP2518942Y2 (en) | 1996-12-04 |
Family
ID=31509369
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1990005670U Expired - Lifetime JP2518942Y2 (en) | 1990-01-26 | 1990-01-26 | Shading correction circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2518942Y2 (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63117165U (en) * | 1987-01-21 | 1988-07-28 |
-
1990
- 1990-01-26 JP JP1990005670U patent/JP2518942Y2/en not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63117165U (en) * | 1987-01-21 | 1988-07-28 |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2518942Y2 (en) | 1996-12-04 |
Similar Documents
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |