JPH0314887U - - Google Patents
Info
- Publication number
- JPH0314887U JPH0314887U JP7422689U JP7422689U JPH0314887U JP H0314887 U JPH0314887 U JP H0314887U JP 7422689 U JP7422689 U JP 7422689U JP 7422689 U JP7422689 U JP 7422689U JP H0314887 U JPH0314887 U JP H0314887U
- Authority
- JP
- Japan
- Prior art keywords
- level
- detection means
- output
- color difference
- difference 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.)
- Pending
Links
- 238000001514 detection method Methods 0.000 claims 5
- 230000005540 biological transmission Effects 0.000 claims 1
- 238000005286 illumination Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
- 238000012935 Averaging Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
Landscapes
- Processing Of Color Television Signals (AREA)
Description
第１図は本考案のホワイトバランス調整装置の
電気的構成を示すブロツク線図、第２図は従来の
ホワイトバランス調整装置の電気的構成を示すブ
ロツク線図である。
１……色温度センサ、２……Ｃ−Ｖ変換回路、
３，４……加算器、５，６……平均化回路、７，
８……比較回路、１１，１２，１３，１４……比
較増幅器、１５，１６……切換スイツチ。
FIG. 1 is a block diagram showing the electrical configuration of a white balance adjusting device according to the present invention, and FIG. 2 is a block diagram showing the electrical configuration of a conventional white balance adjusting device. 1... Color temperature sensor, 2... C-V conversion circuit,
3, 4... Adder, 5, 6... Averaging circuit, 7,
8... Comparison circuit, 11, 12, 13, 14... Comparison amplifier, 15, 16... Changeover switch.
Claims (1)
第１検出手段と、 カメラ回路系において映像信号から得られた色
差信号のレベルと予め設定された基準レベルとの
差を検出する第２検出手段と、 前記色差信号のレベルが予め設定された設定レ
ベル内であるかどうかを判別する判別手段と、 該判別手段の判別結果に基き、色差信号のレベ
ルが設定レベル範囲内であるときには、前記第１
検出手段の出力と前記第２検出手段の出力とを加
算した出力をホワイトバランスの制御信号として
送出し、色差信号のレベルが設定レベル範囲外で
あるときには、前記第１検出手段のみの出力をホ
ワイトバランスの制御信号として送出する選択送
出手段とを備えたことを特徴とするホワイトバラ
ンス調整装置。[Claims for Utility Model Registration] A first detection means for detecting color temperature information corresponding to object illumination light, and a difference between the level of a color difference signal obtained from a video signal in a camera circuit system and a preset reference level. a second detection means for detecting the level of the color difference signal; a determination means for determining whether the level of the color difference signal is within a preset setting level; If the first
The output obtained by adding the output of the detection means and the output of the second detection means is sent as a white balance control signal, and when the level of the color difference signal is outside the set level range, the output of only the first detection means is set to white. 1. A white balance adjustment device comprising: selective transmission means for transmitting a balance control signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7422689U JPH0314887U (en) | 1989-06-23 | 1989-06-23 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7422689U JPH0314887U (en) | 1989-06-23 | 1989-06-23 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0314887U true JPH0314887U (en) | 1991-02-14 |
Family
ID=31613739
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7422689U Pending JPH0314887U (en) | 1989-06-23 | 1989-06-23 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0314887U (en) |
-
1989
- 1989-06-23 JP JP7422689U patent/JPH0314887U/ja active Pending
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