JPS60174946U - Display and key switch control circuit - Google Patents
Display and key switch control circuitInfo
- Publication number
- JPS60174946U JPS60174946U JP6131584U JP6131584U JPS60174946U JP S60174946 U JPS60174946 U JP S60174946U JP 6131584 U JP6131584 U JP 6131584U JP 6131584 U JP6131584 U JP 6131584U JP S60174946 U JPS60174946 U JP S60174946U
- Authority
- JP
- Japan
- Prior art keywords
- display
- key switch
- control circuit
- switch control
- signal group
- 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図は従来の表示器及びキースイッチの制御回路のブ
ロック図、第２図は第１図のＬＥＤ表示器３の詳細を示
すブロック図、第３図は第１図のキースイッチ６の詳細
を示すブロック図、第４図は本考案の一実施例のブロッ
ク図、第５図は第４図の要部の詳細を示すブロック図で
ある。
１・・・ＣＰＵ、 ６・・・キースイッチ、９・・・入
力ポート、１０・・・信号線、３，１３・・・ＬＥＤ表
示器、２ 。
１・・・出力ポート。
＋ １− ｎ
第５図
□１ ′
と１′
＼
第４図FIG. 1 is a block diagram of a conventional display and key switch control circuit, FIG. 2 is a block diagram showing details of the LED display 3 in FIG. 1, and FIG. 3 is a detail diagram of the key switch 6 in FIG. 1. FIG. 4 is a block diagram of an embodiment of the present invention, and FIG. 5 is a block diagram showing details of the main parts of FIG. 4. DESCRIPTION OF SYMBOLS 1... CPU, 6... Key switch, 9... Input port, 10... Signal line, 3, 13... LED indicator, 2. 1... Output port. + 1- n Fig. 5□1' and 1' \ Fig. 4
Claims (1)
イッチとを備えた装置における表示器及びキースイッチ
の制御回路において、前記表示器をダイナミック点灯さ
せるための駆動信号である第１の信号群を、前記マトリ
ックス状のキースイッチの列または行を指定する第２の
信号群の少なくとも１部として用い、前記表示器をダイ
ナミック点灯させると共に操作がなされたキースイッチ
のデータを検出するようにしたことを特徴とする表示器
及びキースイッチの制御回路。In a display and key switch control circuit in a device including a dynamically lit display and a matrix-shaped key switch, a first signal group that is a drive signal for dynamically lighting the display is connected to the matrix-shaped key switch. The display is used as at least a part of a second signal group specifying a column or row of key switches in the display device, and is used as at least a part of a second signal group to designate a column or row of key switches, and dynamically lights up the display device and detects data of the operated key switch. control circuit for the device and key switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6131584U JPS60174946U (en) | 1984-04-27 | 1984-04-27 | Display and key switch control circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6131584U JPS60174946U (en) | 1984-04-27 | 1984-04-27 | Display and key switch control circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS60174946U true JPS60174946U (en) | 1985-11-20 |
Family
ID=30589477
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6131584U Pending JPS60174946U (en) | 1984-04-27 | 1984-04-27 | Display and key switch control circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60174946U (en) |
-
1984
- 1984-04-27 JP JP6131584U patent/JPS60174946U/en active Pending
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