JPS58167933U - keyboard device - Google Patents
keyboard deviceInfo
- Publication number
- JPS58167933U JPS58167933U JP6552382U JP6552382U JPS58167933U JP S58167933 U JPS58167933 U JP S58167933U JP 6552382 U JP6552382 U JP 6552382U JP 6552382 U JP6552382 U JP 6552382U JP S58167933 U JPS58167933 U JP S58167933U
- Authority
- JP
- Japan
- Prior art keywords
- keyboard device
- keystroke
- counter
- value
- counting
- 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)
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
第１図ａはキースイッチの時間−抵抗特性を示す図、第
１図すは入力データを読み取る為のスト 、ローブ信号
を示す図、第２図は本考案の一実施例を示す回路図、第
３図は本考案のタイミング図。
１１・１２・・・リングカウンタ、２０・４０・・・す
゛コーグ、３０・・・キーマトリクス、５０・・・比較
回路、６０・・・カウンタ、７０・９０・・・アンドゲ
ート、８０・・・インバータ、１００・・・リセット回
路。Fig. 1a is a diagram showing the time-resistance characteristics of a key switch, Fig. 1 is a diagram showing a strobe signal for reading input data, Fig. 2 is a circuit diagram showing an embodiment of the present invention, Figure 3 is a timing diagram of the present invention. 11/12...Ring counter, 20/40...Suikogu, 30...Key matrix, 50...Comparison circuit, 60...Counter, 70/90...And gate, 80...・Inverter, 100...Reset circuit.
Claims (1)
時に発生する打鍵検出パルスをカウントするカウンタを
具え、このカウンタの値がプリセット値に達すると前記
打鍵検出パルスを文字コード発生部に加えるキーボード
装置。 −A key scan type keyboard device, comprising a counter for counting keystroke detection pulses generated when a keystroke is detected, and when the value of the counter reaches a preset value, the keystroke detection pulse is applied to a character code generating section. −
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6552382U JPS58167933U (en) | 1982-05-07 | 1982-05-07 | keyboard device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6552382U JPS58167933U (en) | 1982-05-07 | 1982-05-07 | keyboard device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS58167933U true JPS58167933U (en) | 1983-11-09 |
Family
ID=30075473
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6552382U Pending JPS58167933U (en) | 1982-05-07 | 1982-05-07 | keyboard device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58167933U (en) |
-
1982
- 1982-05-07 JP JP6552382U patent/JPS58167933U/en active Pending
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