JPS5218118A - Line transmission system - Google Patents
Line transmission systemInfo
- Publication number
- JPS5218118A JPS5218118A JP9310175A JP9310175A JPS5218118A JP S5218118 A JPS5218118 A JP S5218118A JP 9310175 A JP9310175 A JP 9310175A JP 9310175 A JP9310175 A JP 9310175A JP S5218118 A JPS5218118 A JP S5218118A
- Authority
- JP
- Japan
- Prior art keywords
- transmission system
- line transmission
- communication
- current
- ofder
- 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.)
- Pending
Links
Abstract
PURPOSE: In ofder to make the communication with the weak communication current possible, through superposing DC current to the transmission line.
COPYRIGHT: (C)1977,JPO&Japio
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9310175A JPS5218118A (en) | 1975-08-01 | 1975-08-01 | Line transmission system |
US05/695,760 US4150260A (en) | 1975-06-18 | 1976-06-14 | Subscriber's circuit for four-wire-system local switch |
DE2627140A DE2627140C3 (en) | 1975-06-18 | 1976-06-16 | Hybrid circuit in subscriber circuit |
GB24968/76A GB1554421A (en) | 1975-06-18 | 1976-06-16 | Subscriber's circuit for four-wire-system local switch |
CA255,082A CA1057437A (en) | 1975-06-18 | 1976-06-17 | Subscriber's circuit for four-wire-system local switch |
NLAANVRAGE7606570,A NL178117C (en) | 1975-06-18 | 1976-06-17 | COUPLING DEVICE FOR FORMING A COUPLING BETWEEN A FOUR-WAY PATH OF A TIME MULTIPLEX SWITCH NETWORK AND A TWO-WIRE SUBSCRIBER LINE. |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9310175A JPS5218118A (en) | 1975-08-01 | 1975-08-01 | Line transmission system |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5218118A true JPS5218118A (en) | 1977-02-10 |
Family
ID=14073121
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP9310175A Pending JPS5218118A (en) | 1975-06-18 | 1975-08-01 | Line transmission system |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5218118A (en) |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5092622A (en) * | 1973-12-14 | 1975-07-24 |
-
1975
- 1975-08-01 JP JP9310175A patent/JPS5218118A/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5092622A (en) * | 1973-12-14 | 1975-07-24 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JPS525204A (en) | Hearing aid | |
JPS526550A (en) | 2-wire type conversion amplifier | |
JPS5218118A (en) | Line transmission system | |
JPS5350150A (en) | 1-aminotricyclo(4,3,1,1,2,5)undecane and its preparation | |
JPS523597A (en) | Copper iodide colored in white | |
JPS51143848A (en) | Communication system on power line transmission | |
JPS521816A (en) | Car with and without caterpiller | |
JPS538512A (en) | Facsimile communication system | |
JPS527608A (en) | Simultaneous communication interphone | |
JPS5218586A (en) | Manual control system | |
JPS5250656A (en) | Present using preliminary changeover method | |
JPS52103148A (en) | Elevator | |
JPS522131A (en) | Precedence deciding circuit | |
JPS537672A (en) | 4-aminomethyl-5,6,7-trihydroxyisocoumarin | |
JPS52143728A (en) | Diagnostic system | |
JPS5225285A (en) | Aerial transmission line | |
JPS51126008A (en) | Communication system | |
JPS5222742A (en) | Tansmission line reconneting device | |
JPS51120852A (en) | Umbrella | |
JPS5245037A (en) | Protection circuit | |
JPS5348434A (en) | System mode switching method and its equipment | |
JPS537686A (en) | 6-oxo-2-piperzinylacetic acid and its preparation | |
JPS5283704A (en) | 2, 6, 11, 15-tetramethylhexadecane-6, 11-diol | |
JPS5247322A (en) | Connection system between equipments | |
JPS5254913A (en) | Y- starting system |