JPS585121U - Keyboard shift control circuit - Google Patents
Keyboard shift control circuitInfo
- Publication number
- JPS585121U JPS585121U JP9628581U JP9628581U JPS585121U JP S585121 U JPS585121 U JP S585121U JP 9628581 U JP9628581 U JP 9628581U JP 9628581 U JP9628581 U JP 9628581U JP S585121 U JPS585121 U JP S585121U
- Authority
- JP
- Japan
- Prior art keywords
- shift
- outputting
- keyboard
- encoder
- control 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
- 230000002401 inhibitory effect Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 1
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図は本考案によるキーボードのシフト制御回路の一
実施例を示すブロック図である。
１・・・・・・シフト制御回路、３・・・・・・レジス
タ、５・・・・・・論理回路、１２・・・・・・エンコ
ーダ、１５．１６・・・・・・シフトキー、Ｃ０ＤＥ・
・・・・・キーコード、Ｓ２゜ｓ３．ｓ４．ｓ５・・・
・・・出力信号、Ｓ９，３１０・・・・・・指示信号（
出力信号）。FIG. 1 is a block diagram showing an embodiment of a keyboard shift control circuit according to the present invention. 1...Shift control circuit, 3...Register, 5...Logic circuit, 12...Encoder, 15.16...Shift key, C0DE・
...Key code, S2゜s3. s4. s5...
...output signal, S9,310...instruction signal (
output signal).
Claims (1)
応じたキーコードを出力し得るエンコーダ、制御プログ
ラムによって指定されるキーボードのシフト状態に応じ
た出力信号を出力し得るレジスタ及びキー操作を継続す
る限り同一の出力信号を出力し得る複数のシフトキー、
シフトキーが操作された際に、該レジスタのエンコーダ
への入力を禁止し操作されているシフトキーに対応した
シフト状態をエンコーダに指示信号として出力し得る論
理回路とを設けたことを特徴とするキーボードのシフト
制御回路。An encoder capable of outputting a key code corresponding to the shift state of the keyboard specified by the instruction signal, a register capable of outputting an output signal corresponding to the shift state of the keyboard specified by the control program, and an encoder capable of outputting a key code corresponding to the shift state of the keyboard specified by the control program, and an encoder capable of outputting a key code corresponding to the shift state of the keyboard specified by the control program, and multiple shift keys that can output output signals;
A keyboard comprising: a logic circuit capable of inhibiting input to an encoder of the register when a shift key is operated and outputting a shift state corresponding to the operated shift key to the encoder as an instruction signal. Shift control circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9628581U JPS585121U (en) | 1981-06-29 | 1981-06-29 | Keyboard shift control circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9628581U JPS585121U (en) | 1981-06-29 | 1981-06-29 | Keyboard shift control circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS585121U true JPS585121U (en) | 1983-01-13 |
Family
ID=29891156
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9628581U Pending JPS585121U (en) | 1981-06-29 | 1981-06-29 | Keyboard shift control circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS585121U (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS51105230A (en) * | 1975-03-12 | 1976-09-17 | Sanyo Electric Co | |
| JPS5471517A (en) * | 1977-11-18 | 1979-06-08 | Hitachi Ltd | Input system for key information |
-
1981
- 1981-06-29 JP JP9628581U patent/JPS585121U/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS51105230A (en) * | 1975-03-12 | 1976-09-17 | Sanyo Electric Co | |
| JPS5471517A (en) * | 1977-11-18 | 1979-06-08 | Hitachi Ltd | Input system for key information |
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