FR2139849B1 - - Google Patents

Info

Publication number
FR2139849B1
FR2139849B1 FR7215475A FR7215475A FR2139849B1 FR 2139849 B1 FR2139849 B1 FR 2139849B1 FR 7215475 A FR7215475 A FR 7215475A FR 7215475 A FR7215475 A FR 7215475A FR 2139849 B1 FR2139849 B1 FR 2139849B1
Authority
FR
France
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
FR7215475A
Other languages
French (fr)
Other versions
FR2139849A1 (pt
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.)
Comsat Corp
Original Assignee
Comsat Corp
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 Comsat Corp filed Critical Comsat Corp
Publication of FR2139849A1 publication Critical patent/FR2139849A1/fr
Application granted granted Critical
Publication of FR2139849B1 publication Critical patent/FR2139849B1/fr
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J3/00—Time-division multiplex systems
    • H04J3/17—Time-division multiplex systems in which the transmission channel allotted to a first user may be taken away and re-allotted to a second user if the first user becomes inactive, e.g. TASI
    • H04J3/177—Freeze-out systems, e.g. taking away active sources from transmission
    • 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
    • H04B1/66—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 reducing bandwidth of signals; for improving efficiency of transmission
    • 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
    • H04J3/1688—Allocation of channels according to the instantaneous demands of the users, e.g. concentrated multiplexers, statistical multiplexers the demands of the users being taken into account after redundancy removal, e.g. by predictive coding, by variable sampling
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J3/00—Time-division multiplex systems
    • H04J3/17—Time-division multiplex systems in which the transmission channel allotted to a first user may be taken away and re-allotted to a second user if the first user becomes inactive, e.g. TASI
    • H04J3/172—Digital speech interpolation, i.e. DSI

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Time-Division Multiplex Systems (AREA)
  • Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
FR7215475A 1971-04-30 1972-05-02 Expired FR2139849B1 (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US13910671A 1971-04-30 1971-04-30

Publications (2)

Publication Number Publication Date
FR2139849A1 FR2139849A1 (pt) 1973-01-12
FR2139849B1 true FR2139849B1 (pt) 1973-07-13

Family

ID=22485155

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7215475A Expired FR2139849B1 (pt) 1971-04-30 1972-05-02

Country Status (6)

Country Link
CA (1) CA995360A (pt)
DE (1) DE2221350A1 (pt)
FR (1) FR2139849B1 (pt)
GB (1) GB1341663A (pt)
IT (1) IT954852B (pt)
NL (1) NL7205845A (pt)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2828979A1 (fr) * 2001-08-23 2003-02-28 Cit Alcatel Compresseur, decompresseur, bloc de donnees et procede de gestion de ressources

Also Published As

Publication number Publication date
FR2139849A1 (pt) 1973-01-12
GB1341663A (en) 1973-12-25
NL7205845A (pt) 1972-11-01
IT954852B (it) 1973-09-15
CA995360A (en) 1976-08-17
DE2221350A1 (de) 1972-11-23

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Legal Events

Date Code Title Description
ST Notification of lapse