FR2384392A1 - Procede et dispositif de transmission de signaux de parole en multiplex - Google Patents

Procede et dispositif de transmission de signaux de parole en multiplex

Info

Publication number
FR2384392A1
FR2384392A1 FR7807489A FR7807489A FR2384392A1 FR 2384392 A1 FR2384392 A1 FR 2384392A1 FR 7807489 A FR7807489 A FR 7807489A FR 7807489 A FR7807489 A FR 7807489A FR 2384392 A1 FR2384392 A1 FR 2384392A1
Authority
FR
France
Prior art keywords
multiplex
speech signals
signals
sub
transmission
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.)
Granted
Application number
FR7807489A
Other languages
English (en)
Other versions
FR2384392B1 (fr
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.)
Post Office
Original Assignee
Post Office
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 Post Office filed Critical Post Office
Publication of FR2384392A1 publication Critical patent/FR2384392A1/fr
Application granted granted Critical
Publication of FR2384392B1 publication Critical patent/FR2384392B1/fr
Granted legal-status Critical Current

Links

Classifications

    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Time-Division Multiplex Systems (AREA)

Abstract

L'invention concerne le domaine des télécommunications. Le dispositif de multiplexage de l'invention comprend un certain nombre de filtres 1, 2, 3... n qui divisent le signal d'entrée en plusieurs sous-voies. Des detecteurs 12 détectent indépendamment l'activité opérationnelle de chaque sous-voie, pour former ensuite des signaux de parole composites à partir des sous-voies actives, et ces signaux composites sont accompagnés de signaux de codage qui indiquent leur composition. Application aux transmissions téléphoniques en multiplex.
FR7807489A 1977-03-15 1978-03-15 Procede et dispositif de transmission de signaux de parole en multiplex Granted FR2384392A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB10846/77A GB1559897A (en) 1977-03-15 1977-03-15 Multiplexing speech

Publications (2)

Publication Number Publication Date
FR2384392A1 true FR2384392A1 (fr) 1978-10-13
FR2384392B1 FR2384392B1 (fr) 1983-10-28

Family

ID=9975403

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7807489A Granted FR2384392A1 (fr) 1977-03-15 1978-03-15 Procede et dispositif de transmission de signaux de parole en multiplex

Country Status (11)

Country Link
US (1) US4229622A (fr)
JP (1) JPS53136911A (fr)
AU (1) AU510818B2 (fr)
BE (1) BE864936A (fr)
CA (1) CA1102021A (fr)
DE (1) DE2811293A1 (fr)
FR (1) FR2384392A1 (fr)
GB (1) GB1559897A (fr)
IT (1) IT1107349B (fr)
NL (1) NL7802777A (fr)
SE (1) SE427605B (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0084125A2 (fr) * 1982-01-15 1983-07-27 International Business Machines Corporation Appareil pour le multiplexage statistique efficace de signaux de parole et de données

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4442540A (en) * 1981-06-04 1984-04-10 Bell Telephone Laboratories, Incorporated Data over voice transmission arrangement
US4417102A (en) * 1981-06-04 1983-11-22 Bell Telephone Laboratories, Incorporated Noise and bit rate reduction arrangements
DE3270212D1 (en) * 1982-04-30 1986-05-07 Ibm Digital coding method and device for carrying out the method
US4638476A (en) * 1985-06-21 1987-01-20 At&T Bell Laboratories Technique for dynamic resource allocation in a communication system
US4802224A (en) * 1985-09-26 1989-01-31 Nippon Telegraph And Telephone Corporation Reference speech pattern generating method
WO1994030026A1 (fr) * 1993-06-04 1994-12-22 Motorola Inc. Methode et appareil d'ajustage dynamique du nombre maximal d'utilisateurs d'un canal physique
JP3172387B2 (ja) * 1994-06-01 2001-06-04 インターナショナル・ビジネス・マシーンズ・コーポレ−ション 入出力通信サブシステム及び方法
RU2653375C1 (ru) * 2017-12-05 2018-05-08 Юлия Алексеевна Щепочкина Сплав на основе железа

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2388001A (en) * 1944-12-07 1945-10-30 Hazeltine Corp Signal-transmission system
US2564419A (en) * 1947-04-14 1951-08-14 Bell Telephone Labor Inc Time division multiplex system for signals of different band width
NL245178A (fr) * 1958-11-17
JPS5132924B1 (fr) * 1962-03-22 1976-09-16
US3424869A (en) * 1965-06-15 1969-01-28 Bell Telephone Labor Inc Digital speech interpolation communication system
US4032719A (en) * 1975-06-26 1977-06-28 International Business Machines Corporation Modular slot interchange digital exchange
US4131765A (en) * 1976-08-09 1978-12-26 Kahn Leonard R Method and means for improving the spectrum utilization of communications channels
US4100377A (en) * 1977-04-28 1978-07-11 Bell Telephone Laboratories, Incorporated Packet transmission of speech

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0084125A2 (fr) * 1982-01-15 1983-07-27 International Business Machines Corporation Appareil pour le multiplexage statistique efficace de signaux de parole et de données
EP0084125A3 (en) * 1982-01-15 1984-09-19 International Business Machines Corporation Apparatus for efficient statistical multiplexing of voice and data signals

Also Published As

Publication number Publication date
CA1102021A (fr) 1981-05-26
JPS53136911A (en) 1978-11-29
SE427605B (sv) 1983-04-18
IT1107349B (it) 1985-11-25
NL7802777A (nl) 1978-09-19
BE864936A (fr) 1978-07-03
IT7867558A0 (it) 1978-03-14
DE2811293A1 (de) 1978-11-02
US4229622A (en) 1980-10-21
SE7802951L (sv) 1978-09-16
GB1559897A (en) 1980-01-30
FR2384392B1 (fr) 1983-10-28
AU510818B2 (en) 1980-07-17
AU3412178A (en) 1979-09-20

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Legal Events

Date Code Title Description
ST Notification of lapse