JPS58152059U - Switching signal generation circuit - Google Patents
Switching signal generation circuitInfo
- Publication number
- JPS58152059U JPS58152059U JP4819382U JP4819382U JPS58152059U JP S58152059 U JPS58152059 U JP S58152059U JP 4819382 U JP4819382 U JP 4819382U JP 4819382 U JP4819382 U JP 4819382U JP S58152059 U JPS58152059 U JP S58152059U
- Authority
- JP
- Japan
- Prior art keywords
- generation circuit
- signal generation
- signal
- switching signal
- 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
Landscapes
- Studio Circuits (AREA)
- Television Systems (AREA)
- Electronic Switches (AREA)
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図は従来のスーパー・インポーズ機能を備えた表示
装置の回路図、第２図は第１図に示す装置の動作を説明
する波形図、第３図は第１図に示す切換信号発生回路の
動作を説明するタイミン −グ・チャート、第４図は
本考案に係る切換信号発生回路の回路図、第５図は第４
図に示す回路の動作を説明するタイミング・チャートで
ある。
１０．１１．１２・・・コンパレータ、９・・・オア回
路、ａ、 ｂ、 ｃ・・・コンパレータ出力、ｄ・
・・オア回路出力。Fig. 1 is a circuit diagram of a conventional display device with a superimpose function, Fig. 2 is a waveform diagram explaining the operation of the device shown in Fig. 1, and Fig. 3 is a switching signal generation shown in Fig. 1. 4 is a timing chart explaining the operation of the circuit, FIG. 4 is a circuit diagram of the switching signal generation circuit according to the present invention, and FIG.
3 is a timing chart illustrating the operation of the circuit shown in the figure. 10.11.12... Comparator, 9... OR circuit, a, b, c... Comparator output, d.
...OR circuit output.
Claims (1)
作成し、この切換用制御信号を用いてＴＶ映像信号の一
部をデータ信号に切換えてＴＶ映像信号にデータ信号を
重畳した出力を得るための装置において、Ｒ，Ｇ、 Ｂ
の３つのデータ信号を夫々基準レベルと比較するコンパ
レータと、夫々のコンパレータ出力の論理和をとるオア
回路とから成り、このオア回路出力を前記装置の切換用
制御信号として用いることを特徴とする切換信号発生回
路。A switching control signal is created from the three data signals of R, G, and B, and this switching control signal is used to switch a part of the TV video signal to a data signal and output the data signal superimposed on the TV video signal. In the apparatus for obtaining R, G, B
The switching device comprises a comparator that compares each of the three data signals with a reference level, and an OR circuit that takes the logical sum of the outputs of the respective comparators, and the output of the OR circuit is used as a control signal for switching the device. Signal generation circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4819382U JPS58152059U (en) | 1982-04-05 | 1982-04-05 | Switching signal generation circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4819382U JPS58152059U (en) | 1982-04-05 | 1982-04-05 | Switching signal generation circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS58152059U true JPS58152059U (en) | 1983-10-12 |
Family
ID=30059124
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4819382U Pending JPS58152059U (en) | 1982-04-05 | 1982-04-05 | Switching signal generation circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58152059U (en) |
-
1982
- 1982-04-05 JP JP4819382U patent/JPS58152059U/en active Pending
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