DE3881681D1 - Mit einem fernsprechwaehlnetz verbindbares datenuebertragungssystem. - Google Patents
Mit einem fernsprechwaehlnetz verbindbares datenuebertragungssystem.Info
- Publication number
- DE3881681D1 DE3881681D1 DE8888480008T DE3881681T DE3881681D1 DE 3881681 D1 DE3881681 D1 DE 3881681D1 DE 8888480008 T DE8888480008 T DE 8888480008T DE 3881681 T DE3881681 T DE 3881681T DE 3881681 D1 DE3881681 D1 DE 3881681D1
- Authority
- DE
- Germany
- Prior art keywords
- control device
- data transmission
- transmission system
- receiving side
- link
- 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 - Lifetime
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M11/00—Telephonic communication systems specially adapted for combination with other electrical systems
- H04M11/06—Simultaneous speech and data transmission, e.g. telegraphic transmission over the same conductors
-
- 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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP88480008A EP0332792B1 (de) | 1988-03-15 | 1988-03-15 | Mit einem Fernsprechwählnetz verbindbares Datenübertragungssystem |
Publications (1)
Publication Number | Publication Date |
---|---|
DE3881681D1 true DE3881681D1 (de) | 1993-07-15 |
Family
ID=8200490
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE8888480008T Expired - Lifetime DE3881681D1 (de) | 1988-03-15 | 1988-03-15 | Mit einem fernsprechwaehlnetz verbindbares datenuebertragungssystem. |
Country Status (4)
Country | Link |
---|---|
US (1) | US4910763A (de) |
EP (1) | EP0332792B1 (de) |
JP (1) | JPH0681073B2 (de) |
DE (1) | DE3881681D1 (de) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5033062A (en) * | 1989-05-30 | 1991-07-16 | Morrow Stephen E | Digital modem |
US5274697A (en) * | 1990-01-04 | 1993-12-28 | Codex Corporation | Automatic data restoral for modems |
WO1991010308A1 (en) * | 1990-01-04 | 1991-07-11 | Codex Corporation | Automatic data restoral for modems |
FR2661298B1 (fr) * | 1990-04-23 | 1992-06-12 | Cit Alcatel | Procede et dispositif de retour a une liaison normale apres utilisation d'une liaison de secours dans un systeme de transmission de donnees. |
JP2558012B2 (ja) * | 1990-11-27 | 1996-11-27 | 富士通株式会社 | 通信回線バックアップ方式 |
US6112249A (en) * | 1997-05-30 | 2000-08-29 | International Business Machines Corporation | Non-disruptively rerouting network communications from a secondary network path to a primary path |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4076961A (en) * | 1974-09-23 | 1978-02-28 | Intertel, Inc. | Automatic switching unit for data communications network |
JPS5236950A (en) * | 1975-09-18 | 1977-03-22 | Nec Corp | Information transmission system |
DE3371023D1 (en) * | 1983-06-30 | 1987-05-21 | Ibm | Interface module for telephone lines |
JPS62208746A (ja) * | 1986-02-17 | 1987-09-14 | Fujitsu Ltd | 誤切替防止方式 |
-
1988
- 1988-03-15 EP EP88480008A patent/EP0332792B1/de not_active Expired - Lifetime
- 1988-03-15 DE DE8888480008T patent/DE3881681D1/de not_active Expired - Lifetime
-
1989
- 1989-03-13 US US07/322,017 patent/US4910763A/en not_active Expired - Fee Related
- 1989-03-15 JP JP1061091A patent/JPH0681073B2/ja not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
EP0332792A1 (de) | 1989-09-20 |
JPH0681073B2 (ja) | 1994-10-12 |
JPH01273435A (ja) | 1989-11-01 |
US4910763A (en) | 1990-03-20 |
EP0332792B1 (de) | 1993-06-09 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8332 | No legal effect for de |