CA1073053A - Repeater monitoring and fault location - Google Patents
Repeater monitoring and fault locationInfo
- Publication number
- CA1073053A CA1073053A CA274,657A CA274657A CA1073053A CA 1073053 A CA1073053 A CA 1073053A CA 274657 A CA274657 A CA 274657A CA 1073053 A CA1073053 A CA 1073053A
- Authority
- CA
- Canada
- Prior art keywords
- low
- band
- repeater
- frequency
- pass filtering
- 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
Links
- 238000012544 monitoring process Methods 0.000 title abstract description 5
- 230000005540 biological transmission Effects 0.000 claims abstract description 88
- 238000012360 testing method Methods 0.000 claims abstract description 63
- 238000001914 filtration Methods 0.000 claims description 50
- 230000008878 coupling Effects 0.000 claims 4
- 238000010168 coupling process Methods 0.000 claims 4
- 238000005859 coupling reaction Methods 0.000 claims 4
- 239000000306 component Substances 0.000 abstract description 57
- 238000002347 injection Methods 0.000 description 4
- 239000007924 injection Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 238000007792 addition Methods 0.000 description 1
- 230000002238 attenuated effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000006854 communication Effects 0.000 description 1
- 238000006880 cross-coupling reaction Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000000593 degrading effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000004992 fission Effects 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/60—Supervising unattended repeaters
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Monitoring And Testing Of Transmission In General (AREA)
- Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US05/669,857 US4025737A (en) | 1976-03-24 | 1976-03-24 | Repeater monitoring and fault location |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1073053A true CA1073053A (en) | 1980-03-04 |
Family
ID=24688006
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA274,657A Expired CA1073053A (en) | 1976-03-24 | 1977-03-24 | Repeater monitoring and fault location |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US4025737A (enExample) |
| JP (1) | JPS52116104A (enExample) |
| CA (1) | CA1073053A (enExample) |
| FR (1) | FR2345862A1 (enExample) |
| GB (1) | GB1545345A (enExample) |
Families Citing this family (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4161634A (en) * | 1978-07-31 | 1979-07-17 | Bell Telephone Laboratories, Incorporated | Count-down addressing system |
| US4161635A (en) * | 1978-07-31 | 1979-07-17 | Bell Telephone Laboratories, Incorporated | Address verification system |
| FR2444983A1 (fr) * | 1978-12-22 | 1980-07-18 | Fillot Jean Jacques | Systeme de surveillance et de regulation d'une liaison de transmission |
| US4404514A (en) * | 1981-08-24 | 1983-09-13 | General Instrument Corporation | Fault detection system as for locating faulty connections in a cable television system |
| US4642426A (en) * | 1984-12-10 | 1987-02-10 | Gte Communication Systems Corporation | Apparatus for locating faults in a carrier subscriber communication system |
| US5191595A (en) * | 1991-04-12 | 1993-03-02 | Telecommunications Techniques Corporation | T1 digital communications system for in-service detection and identification of malfunctioning repeaters |
| US5502715A (en) * | 1995-03-16 | 1996-03-26 | Penny; James R. | Integrated diplexer-amplifier for near antenna installation |
| JP2682517B2 (ja) * | 1995-07-26 | 1997-11-26 | 日本電気株式会社 | 光出力遮断システム |
| KR20000042660A (ko) * | 1998-12-26 | 2000-07-15 | 서평원 | 광중계 시스템의 이득제어방법 |
| US6977958B1 (en) | 2000-02-23 | 2005-12-20 | 2Wire, Inc. | Differentially-driven loop extender |
| US7072385B1 (en) | 2000-02-23 | 2006-07-04 | 2Wire, Inc. | Load coil and DSL repeater including same |
| WO2002071681A1 (en) * | 2001-02-06 | 2002-09-12 | 2Wire, Inc. | Line powered loop extender with communications, control, and diagnostics |
| WO2002063833A2 (en) * | 2001-02-06 | 2002-08-15 | 2Wire, Inc. | Loop extender with selectable line termination and equalization |
| EP1378107A4 (en) * | 2001-02-06 | 2006-04-12 | 2Wire Inc | LOOP EXTENSIONER WITH COMMUNICATION, CONTROL AND DIAGNOSIS |
| EP1370879A4 (en) * | 2001-02-15 | 2006-04-26 | 2Wire Inc | SYSTEM AND METHOD FOR ERROR ISOLATION FOR DSL LOOP EXPANSION DEVICES |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL169808B (nl) * | 1951-05-23 | Philips Nv | Frequentiekiezer met vrijloopkoppeling. | |
| BE559675A (enExample) * | 1956-08-27 | 1900-01-01 | ||
| DE1117171B (de) * | 1959-08-03 | 1961-11-16 | Felten & Guilleaume Carlswerk | Traegerfrequenzuebertragungssystem mit Zweiweg-Zwischenverstaerkern und Verfahren zur Fernueberwachung dieser Verstaerker |
| GB1251121A (enExample) * | 1969-01-02 | 1971-10-27 | ||
| JPS4947012A (enExample) * | 1972-09-11 | 1974-05-07 |
-
1976
- 1976-03-24 US US05/669,857 patent/US4025737A/en not_active Expired - Lifetime
-
1977
- 1977-03-16 GB GB11051/77A patent/GB1545345A/en not_active Expired
- 1977-03-18 FR FR7708162A patent/FR2345862A1/fr active Granted
- 1977-03-24 JP JP3167077A patent/JPS52116104A/ja active Pending
- 1977-03-24 CA CA274,657A patent/CA1073053A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR2345862B1 (enExample) | 1981-07-17 |
| FR2345862A1 (fr) | 1977-10-21 |
| US4025737A (en) | 1977-05-24 |
| JPS52116104A (en) | 1977-09-29 |
| GB1545345A (en) | 1979-05-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CA1073053A (en) | Repeater monitoring and fault location | |
| US5883882A (en) | Fault detection in a frequency duplexed system | |
| US4605902A (en) | Hybrid junction signal combiner | |
| JP3015094B2 (ja) | 光ファイバー送信システムの歪消去方式とその装置及びシステム | |
| US4238766A (en) | Channel level adjusting apparatus | |
| GB871356A (en) | Improvements in or relating to carrier current communication systems incorporating repeaters | |
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| JPS6253095B2 (enExample) | ||
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| GB2295737A (en) | RF and IF level control circuit for portable radio communications apparatus | |
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| US3202917A (en) | Mono-oscillator u. h. f. transmitterreceiver | |
| US2699496A (en) | Microwave relay test system | |
| US3049596A (en) | Carrier frequency communication system | |
| US3311714A (en) | Method and apparatus for testing a repeatered transmission path | |
| JPS63119330A (ja) | レベル調整装置 | |
| US2021978A (en) | Testing system | |
| Hallford et al. | Microwave receiver interference characteristic measurements | |
| Santora | Evaluation of Very High Frequency Interference Cancellation System. |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry |