KR900007153B1 - 교환국 접속부 스위칭용 루우프 검사회로를 갖고 있는 다중 억세스 통신 시스템 - Google Patents

교환국 접속부 스위칭용 루우프 검사회로를 갖고 있는 다중 억세스 통신 시스템 Download PDF

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Publication number
KR900007153B1
KR900007153B1 KR1019870003222A KR870003222A KR900007153B1 KR 900007153 B1 KR900007153 B1 KR 900007153B1 KR 1019870003222 A KR1019870003222 A KR 1019870003222A KR 870003222 A KR870003222 A KR 870003222A KR 900007153 B1 KR900007153 B1 KR 900007153B1
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KR
South Korea
Prior art keywords
line interface
signal
circuit
interface circuit
loop
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
Application number
KR1019870003222A
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English (en)
Korean (ko)
Other versions
KR870010720A (ko
Inventor
류 레이 후지와라
Original Assignee
닛본덴기 가부시기가이샤
세끼모또 타다히로
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 닛본덴기 가부시기가이샤, 세끼모또 타다히로 filed Critical 닛본덴기 가부시기가이샤
Publication of KR870010720A publication Critical patent/KR870010720A/ko
Application granted granted Critical
Publication of KR900007153B1 publication Critical patent/KR900007153B1/ko
Expired legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M11/00—Telephonic communication systems specially adapted for combination with other electrical systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W84/00—Network topologies
    • H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
    • H04W84/10—Small scale networks; Flat hierarchical networks
    • H04W84/14—WLL [Wireless Local Loop]; RLL [Radio Local Loop]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M7/00—Arrangements for interconnection between switching centres

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Telephonic Communication Services (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Sub-Exchange Stations And Push- Button Telephones (AREA)
  • Use Of Switch Circuits For Exchanges And Methods Of Control Of Multiplex Exchanges (AREA)
  • Meter Arrangements (AREA)
  • Monitoring And Testing Of Exchanges (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)
KR1019870003222A 1985-04-05 1987-04-04 교환국 접속부 스위칭용 루우프 검사회로를 갖고 있는 다중 억세스 통신 시스템 Expired KR900007153B1 (ko)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP61-77540 1985-04-05
JP7754086 1986-04-05

Publications (2)

Publication Number Publication Date
KR870010720A KR870010720A (ko) 1987-11-30
KR900007153B1 true KR900007153B1 (ko) 1990-09-29

Family

ID=13636830

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019870003222A Expired KR900007153B1 (ko) 1985-04-05 1987-04-04 교환국 접속부 스위칭용 루우프 검사회로를 갖고 있는 다중 억세스 통신 시스템

Country Status (7)

Country Link
US (1) US4756018A (en:Method)
EP (1) EP0241228B1 (en:Method)
JP (1) JPS6345997A (en:Method)
KR (1) KR900007153B1 (en:Method)
AU (1) AU585803B2 (en:Method)
CA (1) CA1267960C (en:Method)
DE (1) DE3782265T2 (en:Method)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02154536A (ja) * 1988-12-06 1990-06-13 Nec Corp 通話回線試験方式
US5355405A (en) * 1992-06-26 1994-10-11 At&T Bell Laboratories Arrangement for dynamically identifying the assignment of a subscriber telephone loop connection at a serving terminal
KR960040039A (ko) * 1995-04-03 1996-11-25 김주용 디지탈 이동통신 교환기 (msc)의 가청 톤 전용 신호 서비스 장치 및 방법
US5684789A (en) * 1995-06-29 1997-11-04 Lucent Technologies Inc. Remote control, link independent A/B switch box with diagnostic loopback
CN1055366C (zh) * 1995-09-28 2000-08-09 深圳市华为技术有限公司 基于程控交换机的蜂窝式集群通信方法及其系统
KR100277038B1 (ko) * 1998-12-23 2001-01-15 윤종용 다기능 아날로그 트렁크 회로_
US9451541B2 (en) * 2012-01-11 2016-09-20 Shenzhen Hac Telecom Technology Co., Ltd. System and method for wireless communication
CN107078750B (zh) 2014-10-31 2019-03-19 瑞典爱立信有限公司 无线电接收器、检测无线电接收器中的侵扰信号的方法以及计算机程序

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3778555A (en) * 1971-07-19 1973-12-11 Digital Telephone Systems Inc Telephone subscriber line system intra call apparatus and method
US3917908A (en) * 1972-06-19 1975-11-04 Lynch Communication Systems Call concentrator with expanded intracall capability
US4284848A (en) * 1979-08-01 1981-08-18 Frost Edward G Switched network telephone subscriber distribution system
JPS59181734A (ja) * 1983-03-30 1984-10-16 Nec Corp 無線電話方式
JPS6033746A (ja) * 1983-08-04 1985-02-21 Nec Corp 衛星回線監視方式
US4616180A (en) * 1983-11-14 1986-10-07 Technicare Corporation Nuclear magnetic resonance imaging with reduced sensitivity to motional effects
US4817190A (en) * 1985-08-27 1989-03-28 Motorola, Inc. Method for dynamically regrouping subscribers on a communications system
AU586603B2 (en) * 1986-04-26 1989-07-13 Nec Corporation Radio key telephone system having a common signaling channel

Also Published As

Publication number Publication date
CA1267960A (en) 1990-04-17
EP0241228A2 (en) 1987-10-14
AU585803B2 (en) 1989-06-22
DE3782265D1 (de) 1992-11-26
US4756018A (en) 1988-07-05
JPS6345997A (ja) 1988-02-26
AU7110787A (en) 1987-10-08
DE3782265T2 (de) 1993-05-19
JPH0481920B2 (en:Method) 1992-12-25
KR870010720A (ko) 1987-11-30
EP0241228B1 (en) 1992-10-21
CA1267960C (en) 1990-04-17
EP0241228A3 (en) 1989-06-14

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