JPS6353127U - - Google Patents
Info
- Publication number
- JPS6353127U JPS6353127U JP14350186U JP14350186U JPS6353127U JP S6353127 U JPS6353127 U JP S6353127U JP 14350186 U JP14350186 U JP 14350186U JP 14350186 U JP14350186 U JP 14350186U JP S6353127 U JPS6353127 U JP S6353127U
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- switch
- return signal
- scan
- scan 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
- 230000007274 generation of a signal involved in cell-cell signaling Effects 0.000 claims description 3
- 230000005540 biological transmission Effects 0.000 claims 3
- 238000010586 diagram Methods 0.000 description 8
- 239000011159 matrix material Substances 0.000 description 2
- 230000008054 signal transmission Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 1
Landscapes
- Input From Keyboards Or The Like (AREA)
- Studio Circuits (AREA)
Description
第１図はこの発明に係るスイツチ情報入力回路
の一実施例を示す回路図、第２図は同実施例に用
いられる電子スイツチの等価回路を説明するため
の図、第３図は従来のキーボード・マトリクス方
式によるスイツチ情報入力回路の構成を示す回路
図、第４図は同回路のスキヤン信号のタイミング
を説明するための図、第５図は同じく従来のスイ
ツチ情報入力回路のリレースイツチを用いた場合
の構成を示す回路図、第６図はそのリレースイツ
チの構造を説明するための図である。
１１…制御卓、１２…スキヤン信号発生回路、
１３…リターン信号入力回路、１４…キーボード
・マトリクス、ＳＷ１１〜ＳＷ１３，ＳＷ２１〜
ＳＷ２３，ＳＷ３１〜ＳＷ３３…操作スイツチ、
ＲＳ１１〜ＲＳ１３，ＲＳ２１〜ＲＳ２３，ＲＳ
３１〜ＲＳ３３…リレースイツチ、ＩＣ１１〜Ｉ
Ｃ１３，ＩＣ２１〜ＩＣ２３，ＩＣ３１〜ＩＣ３
３…電子スイツチ、Ｓ１〜Ｓ３…スキヤン信号伝
送ライン、Ｒａ〜Ｒｃ…リターン信号伝送ライン
、Ｖｃ…電源電圧。
Fig. 1 is a circuit diagram showing an embodiment of a switch information input circuit according to the present invention, Fig. 2 is a diagram for explaining an equivalent circuit of an electronic switch used in the embodiment, and Fig. 3 is a diagram of a conventional keyboard.・Circuit diagram showing the configuration of a switch information input circuit based on the matrix method. Figure 4 is a diagram for explaining the timing of the scan signal of the same circuit. Figure 5 is a circuit diagram showing the configuration of a switch information input circuit using a conventional switch information input circuit. FIG. 6 is a circuit diagram showing the configuration of this case, and is a diagram for explaining the structure of the relay switch. 11... Control console, 12... Scan signal generation circuit,
13...Return signal input circuit, 14...Keyboard matrix, SW11~SW13, SW21~
SW23, SW31 to SW33...operation switch,
RS11~RS13, RS21~RS23, RS
31~RS33...Relay switch, IC11~I
C13, IC21~IC23, IC31~IC3
3...Electronic switch, S1-S3...Scan signal transmission line, Ra-Rc...Return signal transmission line, Vc...Power supply voltage.
Claims (1)
するスキヤン信号発生回路と、前記伝送ラインに
それぞれ複数個設けられて対応する伝送ラインに
制御入力端が接続され信号入力端が対応する操作
スイツチに接続され該操作スイツチが操作されか
つスキヤン信号が供給されたときリターン信号を
出力する複数個の電子スイツチと、この複数個の
電子スイツチから出力されるリターン信号をその
行毎に入力してスイツチ情報を検知するリターン
信号入力回路とを具備したことを特徴とするスイ
ツチ情報入力回路。 a scan signal generation circuit that sequentially outputs scan signals to a plurality of transmission lines; and a plurality of scan signal generation circuits provided in each of the transmission lines, each having a control input terminal connected to the corresponding transmission line and a signal input terminal connected to a corresponding operation switch. A plurality of electronic switches output a return signal when the operation switch is operated and a scan signal is supplied, and switch information is detected by inputting the return signal output from the plurality of electronic switches for each row. 1. A switch information input circuit comprising: a return signal input circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14350186U JPS6353127U (en) | 1986-09-19 | 1986-09-19 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14350186U JPS6353127U (en) | 1986-09-19 | 1986-09-19 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6353127U true JPS6353127U (en) | 1988-04-09 |
Family
ID=31053244
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14350186U Pending JPS6353127U (en) | 1986-09-19 | 1986-09-19 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6353127U (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4938523A (en) * | 1972-08-11 | 1974-04-10 |
-
1986
- 1986-09-19 JP JP14350186U patent/JPS6353127U/ja active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4938523A (en) * | 1972-08-11 | 1974-04-10 |
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