KR100373439B1 - 원거리전화단선체크장치 - Google Patents
원거리전화단선체크장치 Download PDFInfo
- Publication number
- KR100373439B1 KR100373439B1 KR1019980034745A KR19980034745A KR100373439B1 KR 100373439 B1 KR100373439 B1 KR 100373439B1 KR 1019980034745 A KR1019980034745 A KR 1019980034745A KR 19980034745 A KR19980034745 A KR 19980034745A KR 100373439 B1 KR100373439 B1 KR 100373439B1
- Authority
- KR
- South Korea
- Prior art keywords
- main body
- remote
- signal
- telephone
- output
- 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.)
- Expired - Fee Related
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Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B3/00—Line transmission systems
- H04B3/02—Details
- H04B3/46—Monitoring; Testing
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Telephonic Communication Services (AREA)
- Alarm Systems (AREA)
Abstract
Description
Claims (1)
- 특정전화선로에 상기 원격체크기 본체(100)를 연결하고 원거리의 다른 전화번호의 선로에는 상기 감지기 본체(200)를 연결한 원거리 전화단선체크장치에 있어서,상기 원격체크기 본체(100)에는 교환기로부터 전화선로를 통해 제공되는 복합주파수 신호를 받아 미리 설정된 기준전압과 비교하여 복합주파수 신호로부터 트리거구간과 스페이스 구간을 갖는 한 싸이클로 이루어진 구형파 신호를 생성하며, 잡음을 제거하는 상기 전압비교기(150)와, 상기 전압비교기(150)로부터 출력된 트리거구간과 스페이스구간을 갖는 한 싸이클로 이루어진 구형파 신호를 적분하여 화중음이나 착신음을 변별하여 출력하는 상기 적분기(160)와 상기 적분기(160)로부터 출력된 화중음이나 착신음의 변별신호를 받아, 설정된 시간동안 카운팅하여 카운팅값이 1개의 펄스이면 선로정상으로 판단하여 설정시간 후에 초기화되고, 2개이상의 펄스이면 선로단선상태로 판단하여 경보제어 신호와 단선상태 데이터를 출력하여 표시하도록 제어하는 상기 마이컴(170)과 상기 마이컴(170)으로부터 출력된 단선상태의 데이터를 받아 표시하는 상기 표시기(190)를 특징으로 하는 원거리 전화 단선체크장치.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019980034745A KR100373439B1 (ko) | 1998-08-27 | 1998-08-27 | 원거리전화단선체크장치 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019980034745A KR100373439B1 (ko) | 1998-08-27 | 1998-08-27 | 원거리전화단선체크장치 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR19980082115A KR19980082115A (ko) | 1998-11-25 |
| KR100373439B1 true KR100373439B1 (ko) | 2003-05-17 |
Family
ID=37416716
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1019980034745A Expired - Fee Related KR100373439B1 (ko) | 1998-08-27 | 1998-08-27 | 원거리전화단선체크장치 |
Country Status (1)
| Country | Link |
|---|---|
| KR (1) | KR100373439B1 (ko) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR840001970A (ko) * | 1981-10-29 | 1984-06-07 | 베리 에이 뉴삼 | 아미노 사이클로펜탄산 및 에스테르의 제조방법 |
-
1998
- 1998-08-27 KR KR1019980034745A patent/KR100373439B1/ko not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR840001970A (ko) * | 1981-10-29 | 1984-06-07 | 베리 에이 뉴삼 | 아미노 사이클로펜탄산 및 에스테르의 제조방법 |
Also Published As
| Publication number | Publication date |
|---|---|
| KR19980082115A (ko) | 1998-11-25 |
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