JPH0353079U - - Google Patents
Info
- Publication number
- JPH0353079U JPH0353079U JP11442889U JP11442889U JPH0353079U JP H0353079 U JPH0353079 U JP H0353079U JP 11442889 U JP11442889 U JP 11442889U JP 11442889 U JP11442889 U JP 11442889U JP H0353079 U JPH0353079 U JP H0353079U
- Authority
- JP
- Japan
- Prior art keywords
- negative
- gamma correction
- correction circuit
- positive switching
- 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
- 238000010586 diagram Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 1
Description
第１図はこの考案の一実施例を示す構成図、第
２図は従来例の構成図、第３図〜第９図はその説
明のための図である。
１……撮像素子、２……ＡＧＣアンプ、３……
プロセス回路、４，８……アンプ、５，９……レ
ベル検出器、７……アイリス、１１……コントロ
ーラ、１２……ガンマ補正回路、１４……エンコ
ーダ、１５……ネガ／ポジ切換キー、２１……ラ
イン出力端子、２２……切換スイツチ、２３……
ポテンシヨメータ。
FIG. 1 is a block diagram showing an embodiment of this invention, FIG. 2 is a block diagram of a conventional example, and FIGS. 3 to 9 are diagrams for explaining the same. 1...Image sensor, 2...AGC amplifier, 3...
Process circuit, 4, 8...Amplifier, 5, 9...Level detector, 7...Iris, 11...Controller, 12...Gamma correction circuit, 14...Encoder, 15...Negative/positive switching key, 21... Line output terminal, 22... Selector switch, 23...
potentiometer.
Claims (1)
回路にガンマ補正回路を有するビデオカメラにお
いて、 上記ガンマ補正回路の補正値を可変する可変手
段を設け、 上記ネガ／ポジ切換を行なわないときには上記
ガンマ補正回路での補正値を一定に固定すると共
に、上記ネガ／ポジ切換を行なうときには上記ガ
ンマ補正回路での補正値を上記可変手段によつて
可変できるようにしたことを特徴とするビデオカ
メラ。[Claims for Utility Model Registration] A video camera having a negative/positive switching function and having a gamma correction circuit in the signal processing circuit, comprising variable means for varying the correction value of the gamma correction circuit, The correction value in the gamma correction circuit is fixed at a constant value when not performing the negative/positive switching, and the correction value in the gamma correction circuit is variable by the variable means when the negative/positive switching is performed. video camera.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11442889U JPH0353079U (en) | 1989-09-29 | 1989-09-29 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11442889U JPH0353079U (en) | 1989-09-29 | 1989-09-29 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0353079U true JPH0353079U (en) | 1991-05-22 |
Family
ID=31662796
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11442889U Pending JPH0353079U (en) | 1989-09-29 | 1989-09-29 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0353079U (en) |
-
1989
- 1989-09-29 JP JP11442889U patent/JPH0353079U/ja active Pending