JPS6457522U - - Google Patents
Info
- Publication number
- JPS6457522U JPS6457522U JP15362387U JP15362387U JPS6457522U JP S6457522 U JPS6457522 U JP S6457522U JP 15362387 U JP15362387 U JP 15362387U JP 15362387 U JP15362387 U JP 15362387U JP S6457522 U JPS6457522 U JP S6457522U
- Authority
- JP
- Japan
- Prior art keywords
- output
- voltage generating
- circuits
- key input
- converter
- 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
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Input From Keyboards Or The Like (AREA)
Description
第１図はこの考案実施例のキー入力判別回路の
回路図、第２図及び第３図は従来のキー入力判別
回路の回路図である。
２Ａ，２Ｂ，２Ｃ：電圧発生回路、２ａ，２ｂ
，２ｃ：切換手段、１：Ａ／Ｄコンバーター。
FIG. 1 is a circuit diagram of a key input discrimination circuit according to an embodiment of the present invention, and FIGS. 2 and 3 are circuit diagrams of a conventional key input discrimination circuit. 2A, 2B, 2C: Voltage generation circuit, 2a, 2b
, 2c: switching means, 1: A/D converter.
Claims (1)
じた電圧を発生する複数の電圧発生回路２Ａ，２
Ｂ，２Ｃと、前記電圧発生手段の１のみの出力が
順次得られるための切換手段２ａ，２ｂ，２ｃと
、前記各電圧発生回路の夫々の出力に接続された
Ａ／Ｄコンバーター１よりなることを特徴とする
キー入力判別装置。 A plurality of voltage generation circuits 2A, 2 that have a plurality of switches and generate voltages according to the operation of each switch.
B, 2C, switching means 2a, 2b, 2c for sequentially obtaining the output of only one of the voltage generating means, and an A/D converter 1 connected to each output of each of the voltage generating circuits. A key input discrimination device characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15362387U JPS6457522U (en) | 1987-10-06 | 1987-10-06 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15362387U JPS6457522U (en) | 1987-10-06 | 1987-10-06 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6457522U true JPS6457522U (en) | 1989-04-10 |
Family
ID=31429633
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15362387U Pending JPS6457522U (en) | 1987-10-06 | 1987-10-06 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6457522U (en) |
-
1987
- 1987-10-06 JP JP15362387U patent/JPS6457522U/ja active Pending