JPS5935991U - Automatic dimming multi-digit display device - Google Patents
Automatic dimming multi-digit display deviceInfo
- Publication number
- JPS5935991U JPS5935991U JP13158682U JP13158682U JPS5935991U JP S5935991 U JPS5935991 U JP S5935991U JP 13158682 U JP13158682 U JP 13158682U JP 13158682 U JP13158682 U JP 13158682U JP S5935991 U JPS5935991 U JP S5935991U
- Authority
- JP
- Japan
- Prior art keywords
- digit
- circuit
- signal
- oscillation
- display device
- 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
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (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
図は本考案による自動調光多桁表示装置の一実施例を示
す回路図である。
１・・・発振回路、２・・・受光素子、３・・・カウン
タ、４・・・相駆動回路、５・・・多桁表示部、６□〜
６ｎ・・・ナントゲート、７．〜７ｎ・・・ラッチ回路
、８１〜８ｎ・・・ゲート回路、９・・・セグメント駆
動回路。The figure is a circuit diagram showing an embodiment of an automatic dimming multi-digit display device according to the present invention. DESCRIPTION OF SYMBOLS 1... Oscillation circuit, 2... Light receiving element, 3... Counter, 4... Phase drive circuit, 5... Multi-digit display section, 6□~
6n... Nantes Gate, 7. ~7n...Latch circuit, 81~8n...Gate circuit, 9...Segment drive circuit.
Claims (1)
出力信号のデユーティ−のみを可変する発振回路と、こ
の発振回路の出力信号を計数して桁選択信号を発生する
カウンタと、このカウンタから発生される桁選択信号に
応じて多桁表示部の” 桁選択を行なう駆動回路と、
各桁の表示信号をそれぞれラッチするラッチ回路と、各
ラッチ回路の出力側にそれぞれ設けられたゲート回路と
、前記カウンタから発生される各桁選択信号と発振出力
信号との一致をそれぞれ求めて対応する前記各アンドゲ
ートにゲート信号をそれぞれ供給する一致回路と、前記
各ゲート回路から供給される表示信号によって指示され
る前記多桁表示部のセグメント電極を選択するセグメン
ト駆動回路とを備えた自動調光多桁表示装置。An oscillation circuit that changes only the duty of an oscillation output signal according to the output of an optical sensor that detects the amount of external light, a counter that counts the output signal of this oscillation circuit and generates a digit selection signal, and a drive circuit that selects a digit in a multi-digit display section according to a generated digit selection signal;
A latch circuit that latches the display signal of each digit, a gate circuit provided on the output side of each latch circuit, and a correspondence between each digit selection signal generated from the counter and the oscillation output signal are determined and handled. and a segment drive circuit that selects a segment electrode of the multi-digit display section indicated by a display signal supplied from each gate circuit. Optical multi-digit display device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13158682U JPS5935991U (en) | 1982-08-31 | 1982-08-31 | Automatic dimming multi-digit display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13158682U JPS5935991U (en) | 1982-08-31 | 1982-08-31 | Automatic dimming multi-digit display device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5935991U true JPS5935991U (en) | 1984-03-06 |
Family
ID=30297439
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13158682U Pending JPS5935991U (en) | 1982-08-31 | 1982-08-31 | Automatic dimming multi-digit display device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5935991U (en) |
-
1982
- 1982-08-31 JP JP13158682U patent/JPS5935991U/en active Pending
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