JPS58150134U - Multiple key press detection circuit - Google Patents
Multiple key press detection circuitInfo
- Publication number
- JPS58150134U JPS58150134U JP4488782U JP4488782U JPS58150134U JP S58150134 U JPS58150134 U JP S58150134U JP 4488782 U JP4488782 U JP 4488782U JP 4488782 U JP4488782 U JP 4488782U JP S58150134 U JPS58150134 U JP S58150134U
- Authority
- JP
- Japan
- Prior art keywords
- detection circuit
- press detection
- multiple key
- key
- key press
- 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
- Input From Keyboards Or The Like (AREA)
- Keying Circuit Devices (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) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
図は本考案の一実施例を示す回路図である。
ＲＡ、 ＲＢ、 ＲＣ，Ｒ１〜ＲＮ・・抵抗、ＳＷ１〜
ＳＷＮ・・・キースイッチ、Ｑ・・・コンパレータ、Ｇ
１〜Ｇｓ・・・ケート。The figure is a circuit diagram showing an embodiment of the present invention. RA, RB, RC, R1~RN...Resistance, SW1~
SWN...Key switch, Q...Comparator, G
1~Gs...Kate.
Claims (2)
とキもに該共通接続点を１個の抵抗を介して電源に接続
するかまたは接地し、他方の端子をキースイッチの出力
とするとともにそれぞれ別々の抵抗を介して接地するか
または電源に接続し、前記共通接続点の電位を所定の基
準電圧と比較することにより前記キースイッチを駆動す
るキーの多重押しを検出するようにしたことを特徴とす
るキー多重押し検出回路。(1) When one terminal of multiple key switches is connected in common, the common connection point is connected to the power supply through one resistor or grounded, and the other terminal is used as the output of the key switch. Multiple presses of the key that drives the key switch are detected by connecting each key switch to ground or to a power supply through separate resistors and comparing the potential of the common connection point with a predetermined reference voltage. Features multiple key press detection circuit.
重押し数を任意に設定できるようにした実用新案登録請
求の範囲第（１）項記載のキー多重押し検出回路。(2) The multiple key press detection circuit according to claim (1), wherein the number of permissible multiple key presses can be arbitrarily set by varying the reference voltage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4488782U JPS58150134U (en) | 1982-03-31 | 1982-03-31 | Multiple key press detection circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4488782U JPS58150134U (en) | 1982-03-31 | 1982-03-31 | Multiple key press detection circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS58150134U true JPS58150134U (en) | 1983-10-07 |
Family
ID=30055931
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4488782U Pending JPS58150134U (en) | 1982-03-31 | 1982-03-31 | Multiple key press detection circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58150134U (en) |
-
1982
- 1982-03-31 JP JP4488782U patent/JPS58150134U/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPS58150134U (en) | Multiple key press detection circuit | |
| JPS58188922U (en) | switch | |
| JPS594469U (en) | power supply monitor circuit | |
| JPS5890746U (en) | trigger circuit | |
| JPS5851388U (en) | Fault detection circuit for fire alarm district bell line | |
| JPS5836413U (en) | short circuit protection circuit | |
| JPS58183043U (en) | display circuit | |
| JPS60188388U (en) | load device | |
| JPS5859220U (en) | gain control circuit | |
| JPS5896328U (en) | terminating resistor | |
| JPS6122147U (en) | D/D converter protection circuit | |
| JPS628726U (en) | ||
| JPS58175415U (en) | sensor circuit | |
| JPS5891172U (en) | Linear RMS current transducer | |
| JPS5854131U (en) | Comparator input circuit | |
| JPS60132018U (en) | voltage variable circuit | |
| JPS614212U (en) | small capacity power supply | |
| JPS6059621U (en) | variable resistance circuit | |
| JPS61352U (en) | Signal disconnection detection circuit | |
| JPS59127343U (en) | gate circuit | |
| JPS6017525U (en) | Emergency power cutoff device | |
| JPS597547U (en) | Relay drive circuit | |
| JPS6048302U (en) | Brake force command generation circuit for electric vehicles | |
| JPS5876220U (en) | filter circuit | |
| JPS5870045U (en) | surge absorption element |