JPS57194641A - Communicating method using underground cable line - Google Patents
Communicating method using underground cable lineInfo
- Publication number
- JPS57194641A JPS57194641A JP8045381A JP8045381A JPS57194641A JP S57194641 A JPS57194641 A JP S57194641A JP 8045381 A JP8045381 A JP 8045381A JP 8045381 A JP8045381 A JP 8045381A JP S57194641 A JPS57194641 A JP S57194641A
- Authority
- JP
- Japan
- Prior art keywords
- current
- cable
- signal
- far
- current transformer
- 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.)
- Granted
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B3/00—Line transmission systems
- H04B3/54—Systems for transmission via power distribution lines
- H04B3/56—Circuits for coupling, blocking, or by-passing of signals
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B2203/00—Indexing scheme relating to line transmission systems
- H04B2203/54—Aspects of powerline communications not already covered by H04B3/54 and its subgroups
- H04B2203/5462—Systems for power line communications
- H04B2203/5483—Systems for power line communications using coupling circuits
- H04B2203/5487—Systems for power line communications using coupling circuits cables
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8045381A JPS57194641A (en) | 1981-05-27 | 1981-05-27 | Communicating method using underground cable line |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8045381A JPS57194641A (en) | 1981-05-27 | 1981-05-27 | Communicating method using underground cable line |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS57194641A true JPS57194641A (en) | 1982-11-30 |
JPS6358415B2 JPS6358415B2 (enrdf_load_stackoverflow) | 1988-11-15 |
Family
ID=13718671
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP8045381A Granted JPS57194641A (en) | 1981-05-27 | 1981-05-27 | Communicating method using underground cable line |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57194641A (enrdf_load_stackoverflow) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS604057U (ja) * | 1983-06-20 | 1985-01-12 | 三洋電機株式会社 | 留守番電話装置のリモートコントロール装置 |
JPS60196021A (ja) * | 1984-03-17 | 1985-10-04 | Toko Denki Kk | ケ−ブル遮蔽層を伝送路とする通話装置 |
WO1995026068A1 (de) * | 1994-03-21 | 1995-09-28 | Karl Pfisterer Elektrotechnische Spezialartikel Gmbh & Co. Kg | Einrichtung zur datenübertragung in energieversorgungs-kabelnetzen |
CN112368946A (zh) * | 2018-07-27 | 2021-02-12 | 住友电气工业株式会社 | 通信系统和通信装置 |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS51147107A (en) * | 1975-06-11 | 1976-12-17 | Toyo Commun Equip Co Ltd | Electromagnetic communication method using open magnetic coupler |
-
1981
- 1981-05-27 JP JP8045381A patent/JPS57194641A/ja active Granted
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS51147107A (en) * | 1975-06-11 | 1976-12-17 | Toyo Commun Equip Co Ltd | Electromagnetic communication method using open magnetic coupler |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS604057U (ja) * | 1983-06-20 | 1985-01-12 | 三洋電機株式会社 | 留守番電話装置のリモートコントロール装置 |
JPS60196021A (ja) * | 1984-03-17 | 1985-10-04 | Toko Denki Kk | ケ−ブル遮蔽層を伝送路とする通話装置 |
WO1995026068A1 (de) * | 1994-03-21 | 1995-09-28 | Karl Pfisterer Elektrotechnische Spezialartikel Gmbh & Co. Kg | Einrichtung zur datenübertragung in energieversorgungs-kabelnetzen |
CN112368946A (zh) * | 2018-07-27 | 2021-02-12 | 住友电气工业株式会社 | 通信系统和通信装置 |
Also Published As
Publication number | Publication date |
---|---|
JPS6358415B2 (enrdf_load_stackoverflow) | 1988-11-15 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
SE9301184D0 (sv) | Saett att utfoera konvergens i en ekoundertryckare med adaptiva filter | |
EP0091014A3 (en) | Method of data transmission over telephone circuits and modem therefor | |
JPS57135530A (en) | Communication control system | |
JPS57194641A (en) | Communicating method using underground cable line | |
JPS56149148A (en) | Signal transmission system | |
WO1992004794A3 (en) | Alarm and test system for a digital main line | |
JPS5628530A (en) | Terminal equipment in two-way data communication system having transmission signal level automatic control mechanism | |
JPS5761918A (en) | Level sensor | |
US1910165A (en) | Deep sea cable terminal | |
SU843261A2 (ru) | Индуктивна муфта дл бесконтактнойпЕРЕдАчи СигНАлОВ B МОРСКОй ВОдЕ | |
JPS54109311A (en) | Fault point detection system | |
JPS5340888A (en) | Inspecting wrong coupling for quad of communication cable | |
JPS5370616A (en) | Multi-purpose radio communication method | |
GB1591869A (en) | Alternating signal detector | |
ES2011742A6 (es) | Unidad de telediagnosis para lineas de abonado. | |
JPS5669940A (en) | Echo canceling device for data modem | |
JPS54129902A (en) | Secret communication system | |
JPS648755A (en) | Conference communication equipment | |
JPS57147356A (en) | Transmission control system | |
Nikolskiy et al. | Fundamentals of the Protection of Communications Cables From Corrosion in Urban Regions. | |
JPS57115033A (en) | Data transmission and reception device | |
JPS5583858A (en) | Test method of flat cable | |
JPS5627502A (en) | Antenna system | |
Hofmann et al. | Planning and Implementation of Submarine Cable Systems Federal Republic of Germany- Sweden Nos. 2 and 3 | |
JPS5480019A (en) | Test method for communication circuit |