DE69132427D1 - Digitalmultiplex-Übertragungssystem - Google Patents

Digitalmultiplex-Übertragungssystem

Info

Publication number
DE69132427D1
DE69132427D1 DE69132427T DE69132427T DE69132427D1 DE 69132427 D1 DE69132427 D1 DE 69132427D1 DE 69132427 T DE69132427 T DE 69132427T DE 69132427 T DE69132427 T DE 69132427T DE 69132427 D1 DE69132427 D1 DE 69132427D1
Authority
DE
Germany
Prior art keywords
transmission system
multiplex transmission
digital multiplex
digital
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.)
Expired - Lifetime
Application number
DE69132427T
Other languages
English (en)
Inventor
Naoji Fujimo
Mitsuru Tsuboi
Shoji Tominaga
Takao Matsuda
Naomi Nishiyama
Takahiro Aramaki
Ken-Ichi Abiru
Toshiaki Nobumoto
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.)
Fujitsu Ltd
Original Assignee
Fujitsu Ltd
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 Fujitsu Ltd filed Critical Fujitsu Ltd
Application granted granted Critical
Publication of DE69132427D1 publication Critical patent/DE69132427D1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q11/00—Selecting arrangements for multiplex systems
    • H04Q11/04—Selecting arrangements for multiplex systems for time-division multiplexing
    • H04Q11/0428—Integrated services digital network, i.e. systems for transmission of different types of digitised signals, e.g. speech, data, telecentral, television signals
    • H04Q11/0478—Provisions for broadband connections
    • 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
    • H04B1/667—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 using a division in frequency subbands
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/54—Store-and-forward switching systems 
    • H04L12/56—Packet switching systems
    • H04L12/5601—Transfer mode dependent, e.g. ATM
    • H04L2012/5638—Services, e.g. multimedia, GOS, QOS
    • H04L2012/5671—Support of voice

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Time-Division Multiplex Systems (AREA)
DE69132427T 1990-07-05 1991-07-05 Digitalmultiplex-Übertragungssystem Expired - Lifetime DE69132427D1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP17621290 1990-07-05
JP4844291 1991-03-13

Publications (1)

Publication Number Publication Date
DE69132427D1 true DE69132427D1 (de) 2000-11-02

Family

ID=26388711

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69132427T Expired - Lifetime DE69132427D1 (de) 1990-07-05 1991-07-05 Digitalmultiplex-Übertragungssystem

Country Status (5)

Country Link
US (1) US5436899A (de)
EP (1) EP0464839B1 (de)
AU (1) AU650665B2 (de)
CA (1) CA2046369C (de)
DE (1) DE69132427D1 (de)

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JP2720800B2 (ja) * 1994-12-16 1998-03-04 日本電気株式会社 雑音挿入方法および装置
US5623491A (en) * 1995-03-21 1997-04-22 Dsc Communications Corporation Device for adapting narrowband voice traffic of a local access network to allow transmission over a broadband asynchronous transfer mode network
US6049535A (en) * 1996-06-27 2000-04-11 Interdigital Technology Corporation Code division multiple access (CDMA) communication system
US6697350B2 (en) 1995-06-30 2004-02-24 Interdigital Technology Corporation Adaptive vector correlator for spread-spectrum communications
US7020111B2 (en) 1996-06-27 2006-03-28 Interdigital Technology Corporation System for using rapid acquisition spreading codes for spread-spectrum communications
US6885652B1 (en) 1995-06-30 2005-04-26 Interdigital Technology Corporation Code division multiple access (CDMA) communication system
US6788662B2 (en) 1995-06-30 2004-09-07 Interdigital Technology Corporation Method for adaptive reverse power control for spread-spectrum communications
ZA965340B (en) 1995-06-30 1997-01-27 Interdigital Tech Corp Code division multiple access (cdma) communication system
US6801516B1 (en) 1995-06-30 2004-10-05 Interdigital Technology Corporation Spread-spectrum system for assigning information signals having different data rates
US6816473B2 (en) 1995-06-30 2004-11-09 Interdigital Technology Corporation Method for adaptive forward power control for spread-spectrum communications
US7929498B2 (en) 1995-06-30 2011-04-19 Interdigital Technology Corporation Adaptive forward power control and adaptive reverse power control for spread-spectrum communications
JP3467916B2 (ja) * 1995-07-10 2003-11-17 松下電器産業株式会社 送受信方式
JP2978752B2 (ja) * 1995-12-13 1999-11-15 日本電気株式会社 Ａｔｍ無音圧縮方式
JP3157116B2 (ja) * 1996-03-29 2001-04-16 三菱電機株式会社 音声符号化伝送システム
US5875187A (en) * 1996-06-28 1999-02-23 At&T Wireless Services Inc. TDMA messaging service microcell
JP2927242B2 (ja) * 1996-06-28 1999-07-28 日本電気株式会社 音声符号データの誤り処理装置及び誤り処理方法
US7012903B1 (en) 1996-06-28 2006-03-14 Cingular Wireless Ii, Llc TDMA messaging service microcell
KR100247837B1 (ko) 1997-06-11 2000-04-01 윤종용 협대역 종합정보통신망의 트래픽 처리가 가능한 에이티엠 스위치장치 및 방법
KR20000068922A (ko) * 1997-09-10 2000-11-25 요트.게.아. 롤페즈 통신 시스템 및 터미널
AU9404098A (en) * 1997-09-23 1999-04-12 Voxware, Inc. Scalable and embedded codec for speech and audio signals
JP3306799B2 (ja) 1997-11-18 2002-07-24 松下電器産業株式会社 音声伝送装置と音声伝送方法及びそれを用いた音声帯域信号伝送システム
JP3673074B2 (ja) * 1998-03-19 2005-07-20 富士通株式会社 通信システム
US6373860B1 (en) 1998-07-29 2002-04-16 Centillium Communications, Inc. Dynamically-assigned voice and data channels in a digital-subscriber line (DSL)
US6185525B1 (en) * 1998-10-13 2001-02-06 Motorola Method and apparatus for digital signal compression without decoding
US6535485B1 (en) * 1999-10-01 2003-03-18 Telcordia Technologies, Inc. Methods and systems for an improved reliability packet network
US7027989B1 (en) * 1999-12-17 2006-04-11 Nortel Networks Limited Method and apparatus for transmitting real-time data in multi-access systems
JP3783829B2 (ja) * 2000-02-08 2006-06-07 三菱電機株式会社 ディジタル回線多重化装置
SE519985C2 (sv) * 2000-09-15 2003-05-06 Ericsson Telefon Ab L M Kodning och avkodning av signaler från flera kanaler
JP3463752B2 (ja) * 2001-07-25 2003-11-05 三菱電機株式会社 音響符号化装置、音響復号化装置、音響符号化方法および音響復号化方法
JP4245288B2 (ja) * 2001-11-13 2009-03-25 パナソニック株式会社 音声符号化装置および音声復号化装置
KR100421082B1 (ko) * 2003-02-05 2004-03-04 (주)미라콤테크놀로지 이동단말 또는 이동단말 기능을 수행하는 장치를 이용하여동일한 무선 채널에 복수의 서비스를 다중화하여 동시에제공하는 서비스 제공 방법
US7558295B1 (en) * 2003-06-05 2009-07-07 Mindspeed Technologies, Inc. Voice access model using modem and speech compression technologies
US20050078615A1 (en) * 2003-10-14 2005-04-14 Muri David L. Method and device for duplex communication
JP2005252639A (ja) * 2004-03-04 2005-09-15 Nec Access Technica Ltd Ｐｃｍ符号を用いたデータ伝送システムおよび音声／データ通信切替方法
CN101841714B (zh) * 2004-08-31 2012-12-26 松下电器产业株式会社 运动图像编码、解码方法及装置、记录介质的记录方法
US7869609B2 (en) * 2005-08-22 2011-01-11 Freescale Semiconductor, Inc. Bounded signal mixer and method of operation
JP5001366B2 (ja) * 2006-06-30 2012-08-15 クゥアルコム・インコーポレイテッド 迅速な復号のためのａｃｋ／ｎａｃｋスロット・ポジショニング／複雑さコード
KR100922733B1 (ko) * 2007-12-17 2009-10-22 한국전자통신연구원 Ｉｐ 주소와 전화번호의 실시간 이동성을 동시에 제공하는복합 스위치의 경로 설정 방법

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US4320505A (en) * 1979-07-23 1982-03-16 Bell Telephone Laboratories, Incorporated Processing apparatus for data rate reduction
CA1149524A (en) * 1980-10-03 1983-07-05 David H.A. Black Noise signal level control in a tasi system
EP0085820B1 (de) * 1982-02-09 1985-11-21 International Business Machines Corporation Verfahren zur digitalen Übertragung mit mehreren Geschwindigkeiten und Einrichtung zur Ausführung dieses Verfahrens
GB8330885D0 (en) * 1983-11-18 1983-12-29 British Telecomm Data transmission
JPS6214566A (ja) * 1985-07-12 1987-01-23 Nec Corp 電話信号伝送装置
US4899384A (en) * 1986-08-25 1990-02-06 Ibm Corporation Table controlled dynamic bit allocation in a variable rate sub-band speech coder
JPH0624341B2 (ja) * 1986-12-18 1994-03-30 三菱電機株式会社 マルチメディアデータ伝送方式
JP2692104B2 (ja) * 1988-02-12 1997-12-17 株式会社日立製作所 音声多重化システム
US4972411A (en) * 1988-04-27 1990-11-20 Mitsubishi Denki Kabushiki Kaisha Signalling transmission system
JPH0744511B2 (ja) * 1988-09-14 1995-05-15 富士通株式会社 高郊率多重化方式
US4914650A (en) * 1988-12-06 1990-04-03 American Telephone And Telegraph Company Bandwidth allocation and congestion control scheme for an integrated voice and data network

Also Published As

Publication number Publication date
CA2046369A1 (en) 1992-01-06
AU650665B2 (en) 1994-06-30
EP0464839B1 (de) 2000-09-27
CA2046369C (en) 1997-04-15
EP0464839A2 (de) 1992-01-08
US5436899A (en) 1995-07-25
EP0464839A3 (en) 1993-10-27
AU8022991A (en) 1992-01-09

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Legal Events

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8332 No legal effect for de