JPH0425376U - - Google Patents
Info
- Publication number
- JPH0425376U JPH0425376U JP6630390U JP6630390U JPH0425376U JP H0425376 U JPH0425376 U JP H0425376U JP 6630390 U JP6630390 U JP 6630390U JP 6630390 U JP6630390 U JP 6630390U JP H0425376 U JPH0425376 U JP H0425376U
- Authority
- JP
- Japan
- Prior art keywords
- signal
- input terminal
- input
- image signal
- terminal
- 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
- 239000002131 composite material Substances 0.000 claims 2
- 230000015572 biosynthetic process Effects 0.000 claims 1
- 238000003786 synthesis reaction Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
- 230000002194 synthesizing effect Effects 0.000 description 2
Landscapes
- Studio Circuits (AREA)
Description
第１図はこの考案の一実施例による信号合成回
路を示すブロツク図、第２図は従来の信号合成回
路を示すブロツク図である。
１はアナログマルチプレクサ、２は第１の入力
端子、３は第２の入力端子、５は出力端子、６は
スイツチ手段（Ｃ接点リレー）。
なお、図中、同一符号は同一、又は相当部分を示
す。
FIG. 1 is a block diagram showing a signal synthesizing circuit according to an embodiment of this invention, and FIG. 2 is a block diagram showing a conventional signal synthesizing circuit. 1 is an analog multiplexer, 2 is a first input terminal, 3 is a second input terminal, 5 is an output terminal, and 6 is a switching means (C contact relay). In addition, in the figures, the same reference numerals indicate the same or equivalent parts.
Claims (1)
画像信号に合成される文字信号が入力される第２
の入力端子と、前記第１の入力端子と第２の入力
端子とに接続されて交番する切替信号で切り替え
られ、前記画像信号と文字信号を合成信号に合成
するアナログマルチプレクサと、前記アナログマ
ルチプレクサにて合成された合成信号が出力され
る出力端子と、前記第１の入力端子と出力端子の
間に、前記アナログマルチプレクサと並列に接続
され、前記画像信号と文字信号との合成を行わな
い非合成時には、前記第１の入力端子と出力端子
との間を短絡するスイツチ手段とを備えた信号合
成回路。 A first input terminal to which an image signal is input, and a second input terminal to which a character signal to be synthesized with the image signal is input.
an analog multiplexer connected to the first input terminal and the second input terminal and switched by an alternating switching signal to combine the image signal and the character signal into a composite signal; A non-synthesizer that does not combine the image signal and character signal is connected in parallel with the analog multiplexer between the first input terminal and the output terminal, and an output terminal to which a composite signal is output. A signal synthesis circuit, sometimes comprising a switch means for shorting between the first input terminal and the output terminal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6630390U JPH0425376U (en) | 1990-06-22 | 1990-06-22 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6630390U JPH0425376U (en) | 1990-06-22 | 1990-06-22 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0425376U true JPH0425376U (en) | 1992-02-28 |
Family
ID=31598904
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6630390U Pending JPH0425376U (en) | 1990-06-22 | 1990-06-22 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0425376U (en) |
-
1990
- 1990-06-22 JP JP6630390U patent/JPH0425376U/ja active Pending