KR970064081A - System check result display circuit of key telephone system - Google Patents
System check result display circuit of key telephone system Download PDFInfo
- Publication number
- KR970064081A KR970064081A KR1019960004140A KR19960004140A KR970064081A KR 970064081 A KR970064081 A KR 970064081A KR 1019960004140 A KR1019960004140 A KR 1019960004140A KR 19960004140 A KR19960004140 A KR 19960004140A KR 970064081 A KR970064081 A KR 970064081A
- Authority
- KR
- South Korea
- Prior art keywords
- flip
- light emitting
- emitting diode
- flop
- display circuit
- Prior art date
Links
Abstract
꼭 필요한 표시내용들을 모아 상태표시장치에 넣어 시스템 외부에 도출시켜 사용자나 취급자 모두가 이 상태 표시 장치를 이용하여 시스템의 정상 여부판단과 고장수리에 유용하게 활용할 수 있게 하는 특별한 별도의 부품을 사용하지 않고 간단히 구성하기 위해 주전원을 오아게이트(OR1)를 통해 입력하여 주전원 공급상태를 제1발광다이오드(LED1)를 통해 표시하고, 데이타버스(BD0)를 통해 모니터 상태정보를 디플립플롭(DF1)에서 래치하며, 데이타버스(DB1)를 통해 시스템의 아이들상태정보를 디플립플롭(DF2)에서 래치하여 상기 디플립플롭(DF2)의 출력에 따라 모니터 구동상태를 제2발광다이오드(LED2)에서, 상기 디플립플롭(DF2)의 출력에 따라 시스템의 아이들상태를 제3발광다이오드(LED3)에서 표시토록 구성됨을 특징으로 하는 키폰시스템의 시스템 체크 결과 표시회로.The necessary display contents are gathered and put into the status display device and brought out to the outside of the system so that the user or the handler can use this status display device to judge whether the system is normal and to use special special parts The main power source is inputted through the OR gate OR1 to display the main power supply state through the first light emitting diode LED1 and the monitor status information is transmitted to the D flip-flop DF1 via the data bus BD0 Latches the idle state information of the system through the data bus DB1 in the D flip-flop DF2 and outputs the monitor driving state from the second light emitting diode LED2 according to the output of the D flip- And the idle state of the system is displayed on the third light emitting diode (LED3) according to the output of the D flip-flop (DF2). And a display circuit.
Description
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is a trivial issue, I did not include the contents of the text.
제1도는 본 발명에 따른 회로도이다.Figure 1 is a circuit diagram according to the present invention.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019960004140A KR100194409B1 (en) | 1996-02-22 | 1996-02-22 | System check result display circuit of key phone system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019960004140A KR100194409B1 (en) | 1996-02-22 | 1996-02-22 | System check result display circuit of key phone system |
Publications (2)
Publication Number | Publication Date |
---|---|
KR970064081A true KR970064081A (en) | 1997-09-12 |
KR100194409B1 KR100194409B1 (en) | 1999-06-15 |
Family
ID=66222264
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1019960004140A KR100194409B1 (en) | 1996-02-22 | 1996-02-22 | System check result display circuit of key phone system |
Country Status (1)
Country | Link |
---|---|
KR (1) | KR100194409B1 (en) |
-
1996
- 1996-02-22 KR KR1019960004140A patent/KR100194409B1/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
KR100194409B1 (en) | 1999-06-15 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US5973607A (en) | Hand-held programmable sign | |
KR910008632A (en) | Liquid crystal display circuit | |
KR910010320A (en) | A resume processing control method and system in a computer system to which an expansion unit can be connected | |
KR970064081A (en) | System check result display circuit of key telephone system | |
KR970060724A (en) | Display method of backup battery operation and sensing circuit thereof | |
KR970076219A (en) | The operating status indicator of the personal computer | |
KR850007496A (en) | Input device for all-optical display | |
KR970022935A (en) | Automatic detection device of liquid crystal display | |
KR940003342Y1 (en) | Lighting circuit of liquid crystal display devices | |
KR970077950A (en) | Real-time data output device | |
KR19990000481U (en) | LCD display of the notebook PC to display the time | |
KR970017134A (en) | LED driver device that satisfies DPM conditions | |
KR890016445A (en) | Multifunction keyboard | |
KR970024473A (en) | Multiple power system | |
KR910013039A (en) | How to Display Valid Keys for Each Mode | |
KR860003557A (en) | Editing device | |
Krumein | Integrated circuits for optical sensing and display techniques | |
KR870001525A (en) | Work performance protection circuit of office equipment | |
JPS56140437A (en) | Input device | |
RU92015577A (en) | TELEPHONE APPARATUS | |
KR970072993A (en) | Information display method | |
KR960043670A (en) | Method and device for implementing watch function using optical dial key | |
KR950024070A (en) | Address access monitoring device of computer system | |
KR970062987A (en) | Electronic cash register that can manage table and its management method | |
KR910003651A (en) | Available function key display circuit |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
A201 | Request for examination | ||
E902 | Notification of reason for refusal | ||
E701 | Decision to grant or registration of patent right | ||
GRNT | Written decision to grant | ||
FPAY | Annual fee payment |
Payment date: 20130130 Year of fee payment: 15 |
|
FPAY | Annual fee payment |
Payment date: 20140128 Year of fee payment: 16 |
|
FPAY | Annual fee payment |
Payment date: 20150129 Year of fee payment: 17 |
|
EXPY | Expiration of term |