JPH0439785U - - Google Patents
Info
- Publication number
- JPH0439785U JPH0439785U JP8134990U JP8134990U JPH0439785U JP H0439785 U JPH0439785 U JP H0439785U JP 8134990 U JP8134990 U JP 8134990U JP 8134990 U JP8134990 U JP 8134990U JP H0439785 U JPH0439785 U JP H0439785U
- Authority
- JP
- Japan
- Prior art keywords
- image
- video signal
- superimposing
- level
- detection
- 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 2
- 238000010586 diagram Methods 0.000 description 4
Landscapes
- Studio Circuits (AREA)
Description
第１図は本考案の一実施例のスーパーインポー
ズ装置の構成を示す概略ブロツク図、第２図は従
来のスーパーインポーズ装置の構成を示す概略ブ
ロツク図、第３図は従来のスーパーインポーズ装
置の問題点を説明するための波形図である。
図において、１はフイールド積分器、２はコン
パレータ、３および８は輝度設定部、４はスイツ
チ回路、５は基準電圧源、７はビデオスイツチ、
９は白黒モニタ、１０は簡易クランプ回路、１１
はＣＲＴデイスプレイ、１２はキヤラクタジエネ
レータ、１３は文字指定データ発生部、１４，３
１，および３２は直流電圧源、１００および２０
０はスーパーインポーズ装置、２１０はスーパー
インポーズ用ＩＣである。なお、図中、同一符号
は同一または相当部分を示す。
FIG. 1 is a schematic block diagram showing the configuration of a superimposing device according to an embodiment of the present invention, FIG. 2 is a schematic block diagram showing the configuration of a conventional superimposing device, and FIG. 3 is a schematic block diagram showing the configuration of a conventional superimposing device. FIG. 3 is a waveform diagram for explaining a problem with the device. In the figure, 1 is a field integrator, 2 is a comparator, 3 and 8 are brightness setting sections, 4 is a switch circuit, 5 is a reference voltage source, 7 is a video switch,
9 is a black and white monitor, 10 is a simple clamp circuit, 11
1 is a CRT display, 12 is a character generator, 13 is a character specification data generator, 14, 3
1 and 32 are DC voltage sources, 100 and 20
0 is a superimposing device, and 210 is a superimposing IC. In addition, in the figures, the same reference numerals indicate the same or corresponding parts.
Claims (1)
めのスーパーインポーズ装置であつて、 前記第１の画像の映像信号の平均レベルを検出
する手段と、 前記検出手段の検出出力に基づいて、前記第２
の画像の映像信号のレベルを制御する手段と、 前記制御手段によつてレベル制御された前記第
２の画像の映像信号を、前記第１の画像の映像信
号に重畳する手段とを備えた、スーパーインポー
ズ装置。[Claims for Utility Model Registration] A superimposing device for superimposing and displaying a second image on a first image, comprising means for detecting an average level of a video signal of the first image; Based on the detection output of the detection means, the second
means for controlling the level of the video signal of the image; and means for superimposing the video signal of the second image whose level has been controlled by the control means on the video signal of the first image. Superimpose device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8134990U JPH0439785U (en) | 1990-07-30 | 1990-07-30 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8134990U JPH0439785U (en) | 1990-07-30 | 1990-07-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0439785U true JPH0439785U (en) | 1992-04-03 |
Family
ID=31627216
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8134990U Pending JPH0439785U (en) | 1990-07-30 | 1990-07-30 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0439785U (en) |
-
1990
- 1990-07-30 JP JP8134990U patent/JPH0439785U/ja active Pending
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