CA1145489A - Modem with automatic port reconfiguration apparatus - Google Patents
Modem with automatic port reconfiguration apparatusInfo
- Publication number
- CA1145489A CA1145489A CA000303072A CA303072A CA1145489A CA 1145489 A CA1145489 A CA 1145489A CA 000303072 A CA000303072 A CA 000303072A CA 303072 A CA303072 A CA 303072A CA 1145489 A CA1145489 A CA 1145489A
- Authority
- CA
- Canada
- Prior art keywords
- code
- signals
- demand
- port
- mode
- 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
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/14—Two-way operation using the same type of signal, i.e. duplex
- H04L5/1438—Negotiation of transmission parameters prior to communication
- H04L5/1446—Negotiation of transmission parameters prior to communication of transmission speed
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J3/00—Time-division multiplex systems
- H04J3/16—Time-division multiplex systems in which the time allocation to individual channels within a transmission cycle is variable, e.g. to accommodate varying complexity of signals, to vary number of channels transmitted
- H04J3/1682—Allocation of channels according to the instantaneous demands of the users, e.g. concentrated multiplexers, statistical multiplexers
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Quality & Reliability (AREA)
- Communication Control (AREA)
- Time-Division Multiplex Systems (AREA)
- Use Of Switch Circuits For Exchanges And Methods Of Control Of Multiplex Exchanges (AREA)
- Small-Scale Networks (AREA)
- Data Exchanges In Wide-Area Networks (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CA375,385A CA1133153A (en) | 1977-05-11 | 1981-04-13 | Modem with automatic port reconfiguration apparatus |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US79587677A | 1977-05-11 | 1977-05-11 | |
US795,876 | 1977-05-11 |
Publications (1)
Publication Number | Publication Date |
---|---|
CA1145489A true CA1145489A (en) | 1983-04-26 |
Family
ID=25166679
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA000303072A Expired CA1145489A (en) | 1977-05-11 | 1978-05-10 | Modem with automatic port reconfiguration apparatus |
Country Status (8)
Country | Link |
---|---|
JP (1) | JPS5416104A (sv) |
BE (1) | BE866968A (sv) |
CA (1) | CA1145489A (sv) |
CH (1) | CH641919A5 (sv) |
DE (1) | DE2820574C2 (sv) |
FR (1) | FR2390861A1 (sv) |
GB (1) | GB1604484A (sv) |
SE (1) | SE437317B (sv) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4322845A (en) * | 1979-09-28 | 1982-03-30 | Ibm Corporation | Demand assignment technique for TDMA satellite communication network |
US4397018A (en) | 1979-10-17 | 1983-08-02 | Ibm Corporation | Baton passing method and apparatus for maintaining synchronization in a TDMA satellite communication system |
JPS60143043A (ja) * | 1983-12-29 | 1985-07-29 | Nec Corp | デ−タ多重化方式 |
DE19536025C1 (de) * | 1995-09-27 | 1997-02-20 | Siemens Ag | Verfahren und Datenübertragungssystem zum wahlweisen Übertragen eines oder mehrerer Datensignalströme über ein Zeitmultiplex-Übertragungsmedium |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3700820A (en) * | 1966-04-15 | 1972-10-24 | Ibm | Adaptive digital communication system |
DE1946694A1 (de) * | 1969-09-15 | 1971-03-25 | Siemens Ag | Verfahren zur Datenuebertragung mit Teilnchmern unterschiedlicher Geschwindigkeitsklassen |
US3790715A (en) * | 1972-07-28 | 1974-02-05 | Bell Telephone Labor Inc | Digital transmission terminal for voice and low speed data |
US3851104A (en) * | 1973-04-11 | 1974-11-26 | Mitre Corp | Digital communications system |
DE2419853C2 (de) * | 1974-04-24 | 1976-01-02 | Siemens Ag, 1000 Berlin Und 8000 Muenchen | Schaltungsanordnung zur Steuerung mehrerer Kanalschaltungen eines Zeitmultiplex-Datenübertragungssystems |
JPS515244A (ja) * | 1974-07-04 | 1976-01-16 | Nisshin Steel Co Ltd | Marutensaitokeisutenresuberutono yokaboomochiinai yosetsuhoho |
US3982077A (en) * | 1975-04-07 | 1976-09-21 | International Telephone And Telegraph Corporation | Asynchronous multiplexer and demultiplexer combination |
-
1978
- 1978-05-10 GB GB18735/78A patent/GB1604484A/en not_active Expired
- 1978-05-10 CA CA000303072A patent/CA1145489A/en not_active Expired
- 1978-05-10 SE SE7805350A patent/SE437317B/sv not_active IP Right Cessation
- 1978-05-11 CH CH512378A patent/CH641919A5/de not_active IP Right Cessation
- 1978-05-11 DE DE2820574A patent/DE2820574C2/de not_active Expired
- 1978-05-11 FR FR7814025A patent/FR2390861A1/fr active Granted
- 1978-05-11 BE BE187613A patent/BE866968A/xx not_active IP Right Cessation
- 1978-05-11 JP JP5612878A patent/JPS5416104A/ja active Granted
Also Published As
Publication number | Publication date |
---|---|
FR2390861A1 (fr) | 1978-12-08 |
JPS5416104A (en) | 1979-02-06 |
JPH0130335B2 (sv) | 1989-06-19 |
FR2390861B1 (sv) | 1983-09-23 |
DE2820574C2 (de) | 1987-04-16 |
GB1604484A (en) | 1981-12-09 |
SE7805350L (sv) | 1978-11-13 |
SE437317B (sv) | 1985-02-18 |
BE866968A (fr) | 1978-09-01 |
CH641919A5 (en) | 1984-03-15 |
DE2820574A1 (de) | 1978-11-16 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
MKEX | Expiry |