KR900002742B1 - 전자교환기의 r-2 mfc수신 장치 및 방법 - Google Patents
전자교환기의 r-2 mfc수신 장치 및 방법 Download PDFInfo
- Publication number
- KR900002742B1 KR900002742B1 KR1019870000128A KR870000128A KR900002742B1 KR 900002742 B1 KR900002742 B1 KR 900002742B1 KR 1019870000128 A KR1019870000128 A KR 1019870000128A KR 870000128 A KR870000128 A KR 870000128A KR 900002742 B1 KR900002742 B1 KR 900002742B1
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- South Korea
- Prior art keywords
- input
- signal
- mfc
- digital signal
- processing means
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q1/00—Details of selecting apparatus or arrangements
- H04Q1/18—Electrical details
- H04Q1/28—Current-supply circuits or arrangements for selection equipment at exchanges
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q1/00—Details of selecting apparatus or arrangements
- H04Q1/18—Electrical details
- H04Q1/30—Signalling arrangements; Manipulation of signalling currents
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Exchange Systems With Centralized Control (AREA)
- Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
Abstract
Description
Claims (3)
- 전자교환기 R-2 MFC 수신장치에 있어서, 수신되는 R-2 MFC 신호에 대해 송신용, 수신응답용 신호검출을 위해 병렬로 배치한 제1, 제2, 제3, 제4 디지탈 신호 처리수단(2, 3, 4, 5)과 ; 상기 제1, 제2, 제3, 제4 디지탈 신호처리수단(2, 3, 4, 5)의 각 구동단자에 연결되고, 상기 제 4 디지탈 신호처리수단(5)의 제어신호 출력단자(P0)에 연결되어, 입력되는 R-2 신호를 상기 제1, 제2, 제3, 제4 디지탈 신호처리수단(2, 3, 4, 5)에 분배하여 실시간으로 처리하도록 구동신호를 제공하는 입력분배수단(1)과 ; 상기 제1, 제2, 제3, 제4 디지탈 신호처리수단(2, 3, 4, 5)의 읽기단자에 연결되어 외부제어부의 독출신호를 상기 제1, 제2, 제3, 제4 디지탈 신호처리수단(2, 3, 4, 5)으로 입력시키는 독출신호 디코딩 수단(6)으로 구성된 것을 특징으로 하는 전자 교환기의 R-2 MFC 수신장치.
- 제 1 항에 있어서, 상기 입력분배수단(1)은 프레임 동기신호에 동기되어 2.048MHZ 직렬 클럭 신호(SCK)를 계수하는 계수수단(11)과 ; 상기 제 4 디지탈 신호 처리수단(5)의 제어신호출력을 입력으로 받아 동작하는 래치수단(13)과 ; 상기 계수수단(11)과 래치수단(13)에 연결된 디코딩수단(12)과 ; 상기 디코딩 수단(12)에 연결되어 상기 제1, 제2, 제3, 제4 디지탈 신호처리수단(2, 3, 4, 5)으로 구동신호를 출력하는 멀티플렉싱 수단(14)으로 구성된 것을 특징으로 하는 전자교환기의 R-2 MFC 수신장치.
- 전자교환기의 R-2 MFC 수신방법에 있어서 입력된 R-2 MFC 신호를 계수메모리(23)를 이용한 룩업 테이블(look up table) 방식에 의해 선형화 시키는 제 1 과정과 ; 해밍윈도우 및 궤첼알고리즘을 이용하여 주파수 스펙트럼을 실시간에 검파시키는 제 2 과정과 ; 여파한 값을 계수 메모리(23)에 저장된 기준값과 비교하여 신호판정을 하는 제 3 과정으로 이루어진 것을 특징으로 하는 전자교환기의 R-2 MFC 수신방법.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019870000128A KR900002742B1 (ko) | 1987-01-10 | 1987-01-10 | 전자교환기의 r-2 mfc수신 장치 및 방법 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019870000128A KR900002742B1 (ko) | 1987-01-10 | 1987-01-10 | 전자교환기의 r-2 mfc수신 장치 및 방법 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR880009525A KR880009525A (ko) | 1988-09-15 |
KR900002742B1 true KR900002742B1 (ko) | 1990-04-28 |
Family
ID=19258904
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1019870000128A Expired KR900002742B1 (ko) | 1987-01-10 | 1987-01-10 | 전자교환기의 r-2 mfc수신 장치 및 방법 |
Country Status (1)
Country | Link |
---|---|
KR (1) | KR900002742B1 (ko) |
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1987
- 1987-01-10 KR KR1019870000128A patent/KR900002742B1/ko not_active Expired
Also Published As
Publication number | Publication date |
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KR880009525A (ko) | 1988-09-15 |
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