JPS5866440U - key input device - Google Patents
key input deviceInfo
- Publication number
- JPS5866440U JPS5866440U JP16003981U JP16003981U JPS5866440U JP S5866440 U JPS5866440 U JP S5866440U JP 16003981 U JP16003981 U JP 16003981U JP 16003981 U JP16003981 U JP 16003981U JP S5866440 U JPS5866440 U JP S5866440U
- Authority
- JP
- Japan
- Prior art keywords
- key input
- input device
- circuit
- key
- input circuit
- 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図は本考案キー人力装置の一実施例を示した回路図
、第２図は同タイミングチャートである。
１：バイナリカウンタ、２：デコーダ、３：キー、４．
４’、４“：ＯＲ回路、５：ＯＲ回路、６：リトリガブ
ルワンショツトマルチ、７：データ入力回路、。FIG. 1 is a circuit diagram showing an embodiment of the key manpower device of the present invention, and FIG. 2 is a timing chart of the same. 1: Binary counter, 2: Decoder, 3: Key, 4.
4', 4'': OR circuit, 5: OR circuit, 6: Retriggerable one-shot multi, 7: Data input circuit.
Claims (1)
とキー入力回路とを具備し、且つキー人力の有無を１ケ
所のみの入力で判別するリトリガブルワンショツトマル
チ回路を具備したことを特徴とするキー人力装置。A key input circuit characterized by comprising a key scan output circuit and a key input circuit that constantly generate a key scan signal, and a retriggerable one-shot multi-circuit that determines whether or not a key input is present by inputting only one point. Device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16003981U JPS5866440U (en) | 1981-10-26 | 1981-10-26 | key input device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16003981U JPS5866440U (en) | 1981-10-26 | 1981-10-26 | key input device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5866440U true JPS5866440U (en) | 1983-05-06 |
Family
ID=29952469
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16003981U Pending JPS5866440U (en) | 1981-10-26 | 1981-10-26 | key input device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5866440U (en) |
-
1981
- 1981-10-26 JP JP16003981U patent/JPS5866440U/en active Pending
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