JPS5890431U - input device - Google Patents
input deviceInfo
- Publication number
- JPS5890431U JPS5890431U JP18550181U JP18550181U JPS5890431U JP S5890431 U JPS5890431 U JP S5890431U JP 18550181 U JP18550181 U JP 18550181U JP 18550181 U JP18550181 U JP 18550181U JP S5890431 U JPS5890431 U JP S5890431U
- Authority
- JP
- Japan
- Prior art keywords
- input device
- switch boards
- column lines
- lines
- row lines
- 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
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図は従来の入力装置を説明するための接続図、第２
図はこの考案の一実施例を示す接続図、第３図はこの考
案の他の実施例を示す接続図である。
ｌａ、 ｌｂ、スイッチボード、Ｓ１〜５Ｉ５４．Ｓ
６５〜５１２８：キイースイッチ、２１〜２８：行線、
３１〜３ｇ、 １１〜７８：列線、８□〜８８：列線
相互を共通接続する逆流阻止ダイオード、９：オア回路
。Figure 1 is a connection diagram for explaining a conventional input device;
The figure is a connection diagram showing one embodiment of this invention, and FIG. 3 is a connection diagram showing another embodiment of this invention. la, lb, switchboard, S1-5I54. S
65-5128: Key switch, 21-28: Row line,
31-3g, 11-78: Column lines, 8□-88: Backflow blocking diodes that commonly connect the column lines, 9: OR circuit.
Claims (1)
された複数のスイッチボードと、これら複数のスイッチ
ボードの行線又は列線の何れか一方を共通接続するｋめ
の逆流阻止ダイオードと、上記スイッチボードの何れが
操作されたかを判定する信号を取出すフォア回路とから
成る入力装置。a plurality of switch boards configured with row lines and column lines connected to a plurality of key switches; a k-th backflow blocking diode that commonly connects either the row lines or the column lines of the plurality of switch boards; An input device comprising a fore circuit that outputs a signal for determining which of the switch boards has been operated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18550181U JPS5890431U (en) | 1981-12-11 | 1981-12-11 | input device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18550181U JPS5890431U (en) | 1981-12-11 | 1981-12-11 | input device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5890431U true JPS5890431U (en) | 1983-06-18 |
Family
ID=29986606
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18550181U Pending JPS5890431U (en) | 1981-12-11 | 1981-12-11 | input device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5890431U (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS52120A (en) * | 1975-06-20 | 1977-01-05 | Sanyo Electric Co Ltd | Key input device |
| JPS56108130A (en) * | 1980-01-31 | 1981-08-27 | Fujitsu General Ltd | Switch circuit |
-
1981
- 1981-12-11 JP JP18550181U patent/JPS5890431U/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS52120A (en) * | 1975-06-20 | 1977-01-05 | Sanyo Electric Co Ltd | Key input device |
| JPS56108130A (en) * | 1980-01-31 | 1981-08-27 | Fujitsu General Ltd | Switch circuit |
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