FR2309087A1 - Equipement numerique pour la transmission des canaux de deux systemes de modulation par impulsions codees (pcm) a la cadence d'un seul systeme - Google Patents

Equipement numerique pour la transmission des canaux de deux systemes de modulation par impulsions codees (pcm) a la cadence d'un seul systeme

Info

Publication number
FR2309087A1
FR2309087A1 FR7611547A FR7611547A FR2309087A1 FR 2309087 A1 FR2309087 A1 FR 2309087A1 FR 7611547 A FR7611547 A FR 7611547A FR 7611547 A FR7611547 A FR 7611547A FR 2309087 A1 FR2309087 A1 FR 2309087A1
Authority
FR
France
Prior art keywords
pcm
channels
transmission
rate
single system
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
FR7611547A
Other languages
English (en)
Other versions
FR2309087B1 (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.)
Telecom Italia SpA
Original Assignee
CSELT Centro Studi e Laboratori Telecomunicazioni SpA
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 CSELT Centro Studi e Laboratori Telecomunicazioni SpA filed Critical CSELT Centro Studi e Laboratori Telecomunicazioni SpA
Publication of FR2309087A1 publication Critical patent/FR2309087A1/fr
Application granted granted Critical
Publication of FR2309087B1 publication Critical patent/FR2309087B1/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)
FR7611547A 1975-04-23 1976-04-20 Equipement numerique pour la transmission des canaux de deux systemes de modulation par impulsions codees (pcm) a la cadence d'un seul systeme Granted FR2309087A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT68030/75A IT1044736B (it) 1975-04-23 1975-04-23 Sistema numerico per la trasmissione dei canali di due fasci modulati a impulsi codificati alla velocita di un solo fascio

Publications (2)

Publication Number Publication Date
FR2309087A1 true FR2309087A1 (fr) 1976-11-19
FR2309087B1 FR2309087B1 (fr) 1980-03-14

Family

ID=11307317

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7611547A Granted FR2309087A1 (fr) 1975-04-23 1976-04-20 Equipement numerique pour la transmission des canaux de deux systemes de modulation par impulsions codees (pcm) a la cadence d'un seul systeme

Country Status (5)

Country Link
US (1) US4049917A (fr)
DE (1) DE2616617C3 (fr)
FR (1) FR2309087A1 (fr)
GB (1) GB1548618A (fr)
IT (1) IT1044736B (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0696114A1 (fr) * 1994-05-16 1996-02-07 Matsushita Electric Industrial Co., Ltd. Multiplexage dans un système de compression et expansion de données

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4174465A (en) * 1977-07-29 1979-11-13 Mcdonnell Douglas Corporation Signal transmitting interface system combining time compression and multiplexing
US4689757A (en) * 1983-01-17 1987-08-25 Vada Systems, Inc. Machine event processing system
US4970723A (en) * 1988-09-30 1990-11-13 At&T Bell Laboratories ISDN, basic rate interface arranged for quad voice
US5119368A (en) * 1990-04-10 1992-06-02 At&T Bell Laboratories High-speed time-division switching system
US5334977A (en) * 1991-03-08 1994-08-02 Nec Corporation ADPCM transcoder wherein different bit numbers are used in code conversion
FI955206A (fi) * 1995-10-31 1997-05-01 Nokia Telecommunications Oy Tiedonsiirtomenetelmä
US6404780B1 (en) * 1998-12-23 2002-06-11 Agere Systems Guardian Corp. Synchronizing data transfer protocol across high voltage interface
US6320521B1 (en) * 2000-05-12 2001-11-20 International Business Machines Corporation System and method for efficiently merging compressed data
US6417789B1 (en) * 2000-05-12 2002-07-09 International Business Machines Corporation Highly-efficient compression data format
JP3674471B2 (ja) * 2000-07-25 2005-07-20 日本電気株式会社 コンテンツ転送方法及びネットワークシステム並びにプログラムを記録した機械読み取り可能な記録媒体
US6816093B1 (en) 2003-12-03 2004-11-09 International Business Machines Corporation Apparatus method and system for increased digital media recording throughput
TWI546799B (zh) 2013-04-05 2016-08-21 杜比國際公司 音頻編碼器及解碼器

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3707680A (en) * 1970-05-20 1972-12-26 Communications Satellite Corp Digital differential pulse code modulation system
US3927268A (en) * 1971-04-30 1975-12-16 Communications Satellite Corp Speech predictive encoding communication system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0696114A1 (fr) * 1994-05-16 1996-02-07 Matsushita Electric Industrial Co., Ltd. Multiplexage dans un système de compression et expansion de données
US5592398A (en) * 1994-05-16 1997-01-07 Matsushita Electric Industrial Co., Ltd. Multiple channel multiplexing apparatus

Also Published As

Publication number Publication date
US4049917A (en) 1977-09-20
DE2616617B2 (de) 1977-10-13
GB1548618A (en) 1979-07-18
DE2616617C3 (de) 1978-05-24
FR2309087B1 (fr) 1980-03-14
DE2616617A1 (de) 1976-10-28
IT1044736B (it) 1980-04-21

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Legal Events

Date Code Title Description
ST Notification of lapse