JPS63175233U - - Google Patents
Info
- Publication number
- JPS63175233U JPS63175233U JP4760987U JP4760987U JPS63175233U JP S63175233 U JPS63175233 U JP S63175233U JP 4760987 U JP4760987 U JP 4760987U JP 4760987 U JP4760987 U JP 4760987U JP S63175233 U JPS63175233 U JP S63175233U
- Authority
- JP
- Japan
- Prior art keywords
- key
- matrix circuit
- matrix
- resistor
- row
- 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
- 239000011159 matrix material Substances 0.000 claims description 5
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Input From Keyboards Or The Like (AREA)
Description
第１図及び第２図は本考案のキーマトリクス回
路のスイツチが押下された場合の状態図、第３図
、第４図、第５図は従来のキーマトリクス回路を
示す構成図である。
１０１〜１０７……バツフア、Ｓ１〜Ｓ１２…
…接点スイツチ、Ｒ１〜Ｒ１２……抵抗、Ａ〜Ｅ
……電流経路。
1 and 2 are state diagrams of the key matrix circuit of the present invention when a switch is pressed, and FIGS. 3, 4, and 5 are configuration diagrams showing conventional key matrix circuits. 101-107...Batsuhua, S1 - S12 ...
...Contact switch, R1 to R12 ...Resistance, A to E
...Current path.
Claims (1)
グすることにより何れのキーがオンになつている
かを検出するようにしたキーマトリクス回路にお
いて、 各行および各列にバツフア素子を接続すると共
に、各キーの接点と直列に抵抗を接続したことを
特徴とするキーマトリクス回路。[Claims for Utility Model Registration] In a key matrix circuit that detects which key is turned on by scanning keys arranged in a matrix, a buffer element is connected to each row and each column. In addition, the key matrix circuit is characterized in that a resistor is connected in series with the contact point of each key.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4760987U JPS63175233U (en) | 1987-03-30 | 1987-03-30 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4760987U JPS63175233U (en) | 1987-03-30 | 1987-03-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63175233U true JPS63175233U (en) | 1988-11-14 |
Family
ID=30868373
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4760987U Pending JPS63175233U (en) | 1987-03-30 | 1987-03-30 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63175233U (en) |
-
1987
- 1987-03-30 JP JP4760987U patent/JPS63175233U/ja active Pending
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