JPS59169164U - TV camera sensitivity control device - Google Patents
TV camera sensitivity control deviceInfo
- Publication number
- JPS59169164U JPS59169164U JP6293083U JP6293083U JPS59169164U JP S59169164 U JPS59169164 U JP S59169164U JP 6293083 U JP6293083 U JP 6293083U JP 6293083 U JP6293083 U JP 6293083U JP S59169164 U JPS59169164 U JP S59169164U
- Authority
- JP
- Japan
- Prior art keywords
- control device
- sensitivity control
- video signal
- camera sensitivity
- television camera
- 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
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図は従来のテレビカメラの感度制御装置の構成を示
すブロック線図、第2図は本考案の一実施例を示すブロ
ック線図、第3図は第2図の実施例の要部を具体的に示
した回路図、第4図は第2図および第3図の回路各部の
信号波形を示すタイムチャートである。
10・・・クリッピング回路、Ec8.Eco・・・ク
リップレベル、E、・・・標準レベル。Fig. 1 is a block diagram showing the configuration of a conventional sensitivity control device for a television camera, Fig. 2 is a block diagram showing an embodiment of the present invention, and Fig. 3 shows the main parts of the embodiment of Fig. 2. The specifically illustrated circuit diagram, FIG. 4, is a time chart showing signal waveforms at various parts of the circuits shown in FIGS. 2 and 3. 10... Clipping circuit, Ec8. Eco...Clip level, E...Standard level.
Claims (1)
した映像信号の平均レベルを求め、この平均レベルが標
準レベルに対していかなる関係にあるかに応じて前記撮
像手段の感度を制御するようにしたテレビカメラの感度
制御装置において、前記映像信号中の極端に明るい部分
または−暗い部分の少くとも一方をクリップする回路を
そなえ、このクリップ回路の出力を映像信号に代えて用
いるようにしたことを特徴とするテレビカメラの感度制
御装置。° A television camera that obtains the average level of a video signal extracted by photographing a subject with an imaging means, and controls the sensitivity of the imaging means according to the relationship between this average level and a standard level. The sensitivity control device is characterized in that it includes a circuit that clips at least one of extremely bright parts or extremely dark parts of the video signal, and the output of this clipping circuit is used in place of the video signal. Television camera sensitivity control device.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6293083U JPS59169164U (en) | 1983-04-28 | 1983-04-28 | TV camera sensitivity control device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6293083U JPS59169164U (en) | 1983-04-28 | 1983-04-28 | TV camera sensitivity control device |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS59169164U true JPS59169164U (en) | 1984-11-12 |
Family
ID=30193120
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP6293083U Pending JPS59169164U (en) | 1983-04-28 | 1983-04-28 | TV camera sensitivity control device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS59169164U (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH03108882A (en) * | 1989-06-07 | 1991-05-09 | Olympus Optical Co Ltd | Photometric circuit |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS524115A (en) * | 1975-06-30 | 1977-01-13 | Nippon Telegr & Teleph Corp <Ntt> | Automatic sensitivity control system of tv camera |
-
1983
- 1983-04-28 JP JP6293083U patent/JPS59169164U/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS524115A (en) * | 1975-06-30 | 1977-01-13 | Nippon Telegr & Teleph Corp <Ntt> | Automatic sensitivity control system of tv camera |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH03108882A (en) * | 1989-06-07 | 1991-05-09 | Olympus Optical Co Ltd | Photometric circuit |
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