NL183377C - TRANSMISSION SYSTEM, IN WHICH A FAILED TRANSMISSION ROAD MAY BE CONVERTED TO A RESERVE TRANSMISSION ROAD. - Google Patents
TRANSMISSION SYSTEM, IN WHICH A FAILED TRANSMISSION ROAD MAY BE CONVERTED TO A RESERVE TRANSMISSION ROAD.Info
- Publication number
- NL183377C NL183377C NLAANVRAGE7811771,A NL7811771A NL183377C NL 183377 C NL183377 C NL 183377C NL 7811771 A NL7811771 A NL 7811771A NL 183377 C NL183377 C NL 183377C
- Authority
- NL
- Netherlands
- Prior art keywords
- transmission
- road
- converted
- reserve
- transmission road
- Prior art date
Links
- 230000005540 biological transmission Effects 0.000 title 3
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
- H04B1/74—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 for increasing reliability, e.g. using redundant or spare channels or apparatus
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2753420A DE2753420C3 (en) | 1977-11-30 | 1977-11-30 | Device for equivalent switching of operating systems for digital signals |
Publications (3)
Publication Number | Publication Date |
---|---|
NL7811771A NL7811771A (en) | 1979-06-01 |
NL183377B NL183377B (en) | 1988-05-02 |
NL183377C true NL183377C (en) | 1988-10-03 |
Family
ID=6025003
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NLAANVRAGE7811771,A NL183377C (en) | 1977-11-30 | 1978-11-30 | TRANSMISSION SYSTEM, IN WHICH A FAILED TRANSMISSION ROAD MAY BE CONVERTED TO A RESERVE TRANSMISSION ROAD. |
Country Status (6)
Country | Link |
---|---|
JP (1) | JPS584503B2 (en) |
DE (1) | DE2753420C3 (en) |
FR (1) | FR2410918A1 (en) |
GB (1) | GB2012526B (en) |
IT (1) | IT1100376B (en) |
NL (1) | NL183377C (en) |
Families Citing this family (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5484403A (en) * | 1977-12-19 | 1979-07-05 | Hitachi Ltd | Double system transmission line switching system |
DE2939253A1 (en) * | 1979-09-27 | 1981-04-30 | Siemens AG, 1000 Berlin und 8000 München | Multiple redundant data transmission system - uses test signal to control change-over of transmission lines if line failure occurs |
DE3330683A1 (en) * | 1983-08-25 | 1985-03-14 | Siemens AG, 1000 Berlin und 8000 München | TRANSMISSION SYSTEM FOR DIGITAL SIGNALS, HIGH STEP-SPEED WITH ADDITIONAL SIGNAL TRANSMISSION |
EP0142138B1 (en) * | 1983-11-11 | 1988-10-26 | Fujitsu Limited | Protection switching system for carrier transmission line |
DE3526020A1 (en) * | 1985-07-20 | 1987-01-22 | Philips Patentverwaltung | DEVICES FOR GENERATING THE IDENTIFICATION OF UNSWITCHED TRANSMISSION ROUTES OF A DIGITAL TRANSMISSION SYSTEM |
US4646286A (en) * | 1985-07-30 | 1987-02-24 | Northern Telecom Limited | Communications system with protection switching and channel identities |
DE3642141A1 (en) * | 1986-12-10 | 1988-06-16 | Philips Patentverwaltung | METHOD FOR DECENTRALIZED POWER SUPPLY CIRCUIT |
GB8912090D0 (en) * | 1989-05-25 | 1989-07-12 | Bicc Plc | Data networks |
JP3115676B2 (en) * | 1992-02-12 | 2000-12-11 | 富士通株式会社 | Apparatus and method for automatically switching signal system of subscriber digital transmission apparatus |
GB2267415B (en) * | 1992-05-19 | 1996-02-07 | Sony Broadcast & Communication | Signal switching |
US5712603A (en) * | 1996-08-09 | 1998-01-27 | Kmw Usa, Inc. | Multipole multiposition microwave switch with a common redundancy |
US6631018B1 (en) | 1997-08-27 | 2003-10-07 | Nortel Networks Limited | WDM optical network with passive pass-through at each node |
GB2345422A (en) * | 1998-12-31 | 2000-07-05 | Inventec Corp | Method for data serial transfer |
-
1977
- 1977-11-30 DE DE2753420A patent/DE2753420C3/en not_active Expired
-
1978
- 1978-11-24 IT IT30132/78A patent/IT1100376B/en active
- 1978-11-28 FR FR7833551A patent/FR2410918A1/en active Granted
- 1978-11-29 GB GB7846438A patent/GB2012526B/en not_active Expired
- 1978-11-30 NL NLAANVRAGE7811771,A patent/NL183377C/en not_active IP Right Cessation
- 1978-11-30 JP JP53147321A patent/JPS584503B2/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
FR2410918B1 (en) | 1984-01-20 |
DE2753420B2 (en) | 1979-10-04 |
NL7811771A (en) | 1979-06-01 |
GB2012526B (en) | 1982-03-10 |
IT7830132A0 (en) | 1978-11-24 |
FR2410918A1 (en) | 1979-06-29 |
DE2753420C3 (en) | 1980-06-19 |
NL183377B (en) | 1988-05-02 |
JPS584503B2 (en) | 1983-01-26 |
IT1100376B (en) | 1985-09-28 |
GB2012526A (en) | 1979-07-25 |
JPS54100208A (en) | 1979-08-07 |
DE2753420A1 (en) | 1979-06-07 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
A1A | A request for search or an international-type search has been filed | ||
BB | A search report has been drawn up | ||
BC | A request for examination has been filed | ||
A85 | Still pending on 85-01-01 | ||
V1 | Lapsed because of non-payment of the annual fee |