SE7801647L - Anordning for datakommunikation, serskilt for tagtrafik - Google Patents
Anordning for datakommunikation, serskilt for tagtrafikInfo
- Publication number
- SE7801647L SE7801647L SE7801647A SE7801647A SE7801647L SE 7801647 L SE7801647 L SE 7801647L SE 7801647 A SE7801647 A SE 7801647A SE 7801647 A SE7801647 A SE 7801647A SE 7801647 L SE7801647 L SE 7801647L
- Authority
- SE
- Sweden
- Prior art keywords
- special
- communication device
- data communication
- roof
- traffic
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/42—Loop networks
- H04L12/437—Ring fault isolation or reconfiguration
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
- B61L25/00—Recording or indicating positions or identities of vehicles or trains or setting of track apparatus
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Small-Scale Networks (AREA)
- Train Traffic Observation, Control, And Security (AREA)
- Selective Calling Equipment (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB6089/77A GB1570923A (en) | 1977-02-14 | 1977-02-14 | Data communication apparatus |
Publications (1)
Publication Number | Publication Date |
---|---|
SE7801647L true SE7801647L (sv) | 1978-08-15 |
Family
ID=9808178
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SE7801647A SE7801647L (sv) | 1977-02-14 | 1978-02-13 | Anordning for datakommunikation, serskilt for tagtrafik |
Country Status (8)
Country | Link |
---|---|
US (1) | US4205326A (sv) |
AU (1) | AU513528B2 (sv) |
CH (1) | CH628191A5 (sv) |
DE (1) | DE2805854A1 (sv) |
FR (1) | FR2380674A1 (sv) |
GB (1) | GB1570923A (sv) |
SE (1) | SE7801647L (sv) |
ZA (1) | ZA78755B (sv) |
Families Citing this family (26)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2470996B1 (fr) | 1979-11-30 | 1986-01-31 | Quinquis Jean Paul | Perfectionnements aux systemes electroniques multiprocesseurs destines au traitement de donnees numeriques et logiques |
US4331834A (en) * | 1980-10-29 | 1982-05-25 | Siemens Corporation | Modular telecommunication system |
US4340775A (en) * | 1980-10-29 | 1982-07-20 | Siemens Corporation | Apparatus and method for controlling a modular telecommunication system |
US4340776A (en) * | 1980-10-29 | 1982-07-20 | Siemens Corporation | Modular telecommunication system |
US4331835A (en) * | 1980-10-29 | 1982-05-25 | Siemens Corporation | Interface unit for a modular telecommunication system |
US4383314A (en) * | 1981-01-12 | 1983-05-10 | Burroughs Corporation | Circular access linkage loop configuration for system communication |
US4441162A (en) * | 1981-04-22 | 1984-04-03 | Pitney Bowes Inc. | Local network interface with control processor & DMA controller for coupling data processing stations to common serial communications medium |
US5245705A (en) * | 1981-10-02 | 1993-09-14 | Hughes Aircraft Company | Functional addressing method and apparatus for a multiplexed data bus |
US4460994A (en) * | 1981-10-05 | 1984-07-17 | At&T Bell Laboratories | Loop communication system |
FR2520570A1 (fr) * | 1982-01-25 | 1983-07-29 | Labo Cent Telecommunicat | Reseau de communication local en boucle vehiculant a la fois des donnees et des signaux telephoniques de parole sous forme numerique |
US4489379A (en) * | 1982-01-25 | 1984-12-18 | International Business Machines Corporation | Distributed data processing in ring-structured networks architected for full duplex peer-to-peer operation of processing stations and uninterruptible transfer of long data records between stations |
FI64874C (fi) * | 1982-05-03 | 1984-01-10 | Nokia Oy Ab | Digital multiplexanordning |
US4534024A (en) * | 1982-12-02 | 1985-08-06 | At&T Bell Laboratories | System and method for controlling a multiple access data communications system including both data packets and voice packets being communicated over a cable television system |
US4755988A (en) * | 1983-05-04 | 1988-07-05 | Cxc Corporation | Data communications switching device having multiple switches operating at plural selectable data rates |
US4587651A (en) * | 1983-05-04 | 1986-05-06 | Cxc Corporation | Distributed variable bandwidth switch for voice, data, and image communications |
US4527270A (en) * | 1983-05-04 | 1985-07-02 | Allen-Bradley Company | Communications network with stations that detect and automatically bypass faults |
US4763254A (en) * | 1983-05-26 | 1988-08-09 | Hitachi, Ltd. | Information processing system with data storage on plural loop transmission line |
US4622664A (en) * | 1983-10-19 | 1986-11-11 | Japanese National Railways | Channel control system for loop type signal transmission channel |
GB8328317D0 (en) * | 1983-10-22 | 1983-11-23 | Gen Electric Co Plc | Communication networks |
US4561088A (en) * | 1984-02-13 | 1985-12-24 | Fmc Corporation | Communication system bypass architecture |
EP0172038B1 (en) * | 1984-08-16 | 1991-10-23 | Sharp Kabushiki Kaisha | Information processor |
JPS6212455A (ja) * | 1985-07-11 | 1987-01-21 | 三菱電機株式会社 | 列車運行管理システム |
US4752924A (en) * | 1985-09-05 | 1988-06-21 | American Telephone And Telegraph Company, At&T Bell Laboratories | Ring packet switch |
GB9015363D0 (en) * | 1990-07-12 | 1990-08-29 | Marconi Gec Ltd | Optical networks |
WO1996021184A1 (en) * | 1994-12-29 | 1996-07-11 | Jones International, Ltd. | Method and system for two-way data transmission with secondary one-way circuit |
EP0762766A3 (en) * | 1995-09-12 | 1997-11-05 | AT&T Corp. | Network apparatus and method for providing two-way broadband communications |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2106747A5 (sv) * | 1970-09-23 | 1972-05-05 | Sodeteg | |
US3790717A (en) * | 1972-08-07 | 1974-02-05 | Adaptive Tech | Telephone communications system with distributed control |
US3879710A (en) * | 1974-03-01 | 1975-04-22 | Rca Corp | Data processor for a loop data communications system |
US4081612A (en) * | 1975-07-31 | 1978-03-28 | Hasler Ag | Method for building-up of routing addresses in a digital telecommunication network |
-
1977
- 1977-02-14 GB GB6089/77A patent/GB1570923A/en not_active Expired
-
1978
- 1978-02-08 ZA ZA00780755A patent/ZA78755B/xx unknown
- 1978-02-10 AU AU33213/78A patent/AU513528B2/en not_active Expired
- 1978-02-11 DE DE19782805854 patent/DE2805854A1/de not_active Withdrawn
- 1978-02-13 US US05/876,916 patent/US4205326A/en not_active Expired - Lifetime
- 1978-02-13 SE SE7801647A patent/SE7801647L/sv unknown
- 1978-02-13 FR FR7804045A patent/FR2380674A1/fr not_active Withdrawn
- 1978-02-14 CH CH161578A patent/CH628191A5/de not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
AU513528B2 (en) | 1980-12-04 |
CH628191A5 (de) | 1982-02-15 |
US4205326A (en) | 1980-05-27 |
GB1570923A (en) | 1980-07-09 |
ZA78755B (en) | 1979-01-31 |
AU3321378A (en) | 1979-08-16 |
DE2805854A1 (de) | 1978-08-17 |
FR2380674A1 (fr) | 1978-09-08 |
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