GB1604484A - Modem with automatic port reconfiguration apparatus - Google Patents

Modem with automatic port reconfiguration apparatus Download PDF

Info

Publication number
GB1604484A
GB1604484A GB18735/78A GB1873578A GB1604484A GB 1604484 A GB1604484 A GB 1604484A GB 18735/78 A GB18735/78 A GB 18735/78A GB 1873578 A GB1873578 A GB 1873578A GB 1604484 A GB1604484 A GB 1604484A
Authority
GB
United Kingdom
Prior art keywords
signals
modem
mode
code
modem according
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
Application number
GB18735/78A
Other languages
English (en)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Racal Milgo Inc
Original Assignee
Racal Milgo Inc
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Racal Milgo Inc filed Critical Racal Milgo Inc
Priority to GB114981A priority Critical patent/GB1604485A/en
Publication of GB1604484A publication Critical patent/GB1604484A/en
Expired legal-status Critical Current

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)
  • Data Exchanges In Wide-Area Networks (AREA)
  • Small-Scale Networks (AREA)
GB18735/78A 1977-05-11 1978-05-10 Modem with automatic port reconfiguration apparatus Expired GB1604484A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB114981A GB1604485A (en) 1977-05-11 1978-05-10 Modem systems

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US79587677A 1977-05-11 1977-05-11

Publications (1)

Publication Number Publication Date
GB1604484A true GB1604484A (en) 1981-12-09

Family

ID=25166679

Family Applications (1)

Application Number Title Priority Date Filing Date
GB18735/78A Expired GB1604484A (en) 1977-05-11 1978-05-10 Modem with automatic port reconfiguration apparatus

Country Status (8)

Country Link
JP (1) JPS5416104A (da)
BE (1) BE866968A (da)
CA (1) CA1145489A (da)
CH (1) CH641919A5 (da)
DE (1) DE2820574C2 (da)
FR (1) FR2390861A1 (da)
GB (1) GB1604484A (da)
SE (1) SE437317B (da)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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

Also Published As

Publication number Publication date
DE2820574C2 (de) 1987-04-16
JPH0130335B2 (da) 1989-06-19
DE2820574A1 (de) 1978-11-16
SE7805350L (sv) 1978-11-13
CH641919A5 (en) 1984-03-15
SE437317B (sv) 1985-02-18
FR2390861B1 (da) 1983-09-23
BE866968A (fr) 1978-09-01
FR2390861A1 (fr) 1978-12-08
JPS5416104A (en) 1979-02-06
CA1145489A (en) 1983-04-26

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19930510