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BR9611199A - Dispositivo e processo de comunicação numérico-analógico - Google Patents

Dispositivo e processo de comunicação numérico-analógico

Info

Publication number
BR9611199A
BR9611199A BR9611199-2A BR9611199A BR9611199A BR 9611199 A BR9611199 A BR 9611199A BR 9611199 A BR9611199 A BR 9611199A BR 9611199 A BR9611199 A BR 9611199A
Authority
BR
Brazil
Prior art keywords
digital
analog
adapter
numerical
communication device
Prior art date
Application number
BR9611199-2A
Other languages
English (en)
Inventor
Pierre Humblet
Original Assignee
Inst Eurecom G I E
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 Inst Eurecom G I E filed Critical Inst Eurecom G I E
Publication of BR9611199A publication Critical patent/BR9611199A/pt

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
    • H04Q11/0435—Details
    • H04Q11/0471—Terminal access circuits
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B14/00—Transmission systems not characterised by the medium used for transmission
    • H04B14/02—Transmission systems not characterised by the medium used for transmission characterised by the use of pulse modulation
    • H04B14/023—Transmission systems not characterised by the medium used for transmission characterised by the use of pulse modulation using pulse amplitude modulation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/38—Synchronous or start-stop systems, e.g. for Baudot code
    • H04L25/40—Transmitting circuits; Receiving circuits
    • H04L25/49—Transmitting circuits; Receiving circuits using code conversion at the transmitter; using predistortion; using insertion of idle bits for obtaining a desired frequency spectrum; using three or more amplitude levels ; Baseband coding techniques specific to data transmission systems
    • H04L25/4917—Transmitting circuits; Receiving circuits using code conversion at the transmitter; using predistortion; using insertion of idle bits for obtaining a desired frequency spectrum; using three or more amplitude levels ; Baseband coding techniques specific to data transmission systems using multilevel codes
    • H04L25/4927—Transmitting circuits; Receiving circuits using code conversion at the transmitter; using predistortion; using insertion of idle bits for obtaining a desired frequency spectrum; using three or more amplitude levels ; Baseband coding techniques specific to data transmission systems using multilevel codes using levels matched to the quantisation levels of the channel
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/38—Synchronous or start-stop systems, e.g. for Baudot code
    • H04L25/40—Transmitting circuits; Receiving circuits
    • H04L25/49—Transmitting circuits; Receiving circuits using code conversion at the transmitter; using predistortion; using insertion of idle bits for obtaining a desired frequency spectrum; using three or more amplitude levels ; Baseband coding techniques specific to data transmission systems
    • H04L25/497—Transmitting circuits; Receiving circuits using code conversion at the transmitter; using predistortion; using insertion of idle bits for obtaining a desired frequency spectrum; using three or more amplitude levels ; Baseband coding techniques specific to data transmission systems by correlative coding, e.g. partial response coding or echo modulation coding transmitters and receivers for partial response systems

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Communication Control (AREA)
  • Telephonic Communication Services (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)
  • Analogue/Digital Conversion (AREA)
  • Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
  • Numerical Control (AREA)
  • Optical Communication System (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Computer And Data Communications (AREA)

Abstract

<B>DISPOSITIVO E PROCESSO DE COMUNICAçãO NUMéRICO-ANALóGICO<D>. O presente dispositivo de comunicação entre um adaptador numérico (5), ligado a um central (4), através de uma interface numérica (7), especialmente do tipo RNIS, e um adaptador análogo (6), ligado a uma unidade de troca (3) através de uma interface digital (8). As referidas unidades de troca (3, 4) estão interligadas através de uma rede de telecomunicações (2). O dispositivo compreende meios (11, 12; 15, 16) para vincular diretamente o adaptador digital (5) e o adaptador análogo (6). Dados digitais do adaptador digital (5) são transmitidos em forma digital para o adaptador análogo (6), e vice-versa, sem emular um sinal análogo.
BR9611199-2A 1995-10-23 1996-10-23 Dispositivo e processo de comunicação numérico-analógico BR9611199A (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9512672A FR2740286B1 (fr) 1995-10-23 1995-10-23 Dispositif et procede de communication hybride numerique- analogique sur un canal telephonique
PCT/FR1996/001657 WO1997016009A1 (fr) 1995-10-23 1996-10-23 Dispositif et procede de communication numerique-analogique

Publications (1)

Publication Number Publication Date
BR9611199A true BR9611199A (pt) 1999-12-28

Family

ID=9483972

Family Applications (1)

Application Number Title Priority Date Filing Date
BR9611199-2A BR9611199A (pt) 1995-10-23 1996-10-23 Dispositivo e processo de comunicação numérico-analógico

Country Status (12)

Country Link
US (1) US7280592B1 (pt)
EP (2) EP0857385B1 (pt)
CN (2) CN1203718A (pt)
AT (2) ATE227060T1 (pt)
BR (1) BR9611199A (pt)
CA (1) CA2235521C (pt)
DE (2) DE69624583T2 (pt)
ES (1) ES2186786T3 (pt)
FR (1) FR2740286B1 (pt)
NO (2) NO981796L (pt)
PL (2) PL326386A1 (pt)
WO (2) WO1997016008A1 (pt)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6233275B1 (en) 1994-12-09 2001-05-15 Brent Townshend High speed communications system for analog subscriber connections
US5970103A (en) 1996-09-06 1999-10-19 Townshend; Brent High speed communications system for analog subscriber connections
PT745302E (pt) 1994-12-09 2004-08-31 Brent Townshend Sistema de comunicacoes de alta velocidade para ligacoes analogicas entre assinantes
SE515760C2 (sv) * 1996-09-27 2001-10-08 Telia Ab Förbättringar av eller avseende dataöverföring
US5831561A (en) * 1997-04-29 1998-11-03 Lucent Technologies Inc. System and method for dynamically optimizing a symbol table and modem employing the same
CN101848007B (zh) * 2009-03-27 2013-06-05 台湾积体电路制造股份有限公司 用于串行接收机中的数字自适应均衡器的装置和方法
US11025297B2 (en) * 2016-11-02 2021-06-01 Cable Television Laboratories, Inc. Full-duplex cancellation
PL233729B1 (pl) * 2017-12-11 2019-11-29 Univ Slaski Sposob transmisji rozgloszeniowej dla nadajnikow Bluetooth Low Energy

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5233410A (en) * 1975-09-10 1977-03-14 Hitachi Ltd Receiving level automatic adjusting system
US4032762A (en) * 1975-10-07 1977-06-28 Rockwell International Corporation Adjustable digital filter for high speed digital transmission
US4385379A (en) * 1979-12-19 1983-05-24 Gte Automatic Electric Labs Inc. Digital concentrator for use with a digital telephone office
DE3416818C1 (de) * 1984-05-07 1985-07-04 Telefonbau Und Normalzeit Gmbh, 6000 Frankfurt Verfahren zur Behandlung von Modem-Signalen
CA1260641A (en) * 1986-10-22 1989-09-26 Jan Heynen (ds) transmitter
AU621536B2 (en) * 1987-02-24 1992-03-19 General Electric Capital Corporation Partial response channel signaling systems
US5134611A (en) * 1988-09-30 1992-07-28 Microcom, Inc. Analog/digital data device and method
US5159610A (en) * 1989-05-12 1992-10-27 Codex Corporation Trellis precoding for modulation systems
EP0483439B1 (en) * 1990-10-30 1995-06-28 International Business Machines Corporation Self-training adaptive equalization method and apparatus
US5265125A (en) * 1990-11-16 1993-11-23 Matsushita Electric Industrial Co., Ltd. Signal detection apparatus for detecting digital information from PCM signal
JPH06132998A (ja) * 1992-10-20 1994-05-13 Fujitsu Ltd デジタル伝送・アナログ伝送切換装置
US5623513A (en) * 1993-12-13 1997-04-22 Amati Communications Corporation Mitigating clipping and quantization effects in digital transmission systems
US5483530A (en) * 1993-12-16 1996-01-09 International Business Machines Corporation System and method for communicating with digital and analog devices via a single digital interface
US5528625A (en) * 1994-01-03 1996-06-18 At&T Corp. High speed quantization-level-sampling modem with equalization arrangement
PT745302E (pt) * 1994-12-09 2004-08-31 Brent Townshend Sistema de comunicacoes de alta velocidade para ligacoes analogicas entre assinantes
US5710790A (en) * 1995-02-01 1998-01-20 Lucent Technologies Inc. Communication arrangement with improved echo and noise suppression in a channel containing quantization
US5671251A (en) * 1995-02-28 1997-09-23 Motorola, Inc. Apparatus and method for a data communications device to selectively operate as an analog modem, as a digital modem, and as a terminal adapter

Also Published As

Publication number Publication date
NO981797L (no) 1998-06-22
CN1203718A (zh) 1998-12-30
WO1997016008A1 (fr) 1997-05-01
CN1203717A (zh) 1998-12-30
PL326386A1 (en) 1998-09-14
ATE227060T1 (de) 2002-11-15
ES2186786T3 (es) 2003-05-16
DE69634902D1 (de) 2005-08-04
NO981796D0 (no) 1998-04-22
FR2740286A1 (fr) 1997-04-25
CN1272949C (zh) 2006-08-30
DE69624583D1 (de) 2002-12-05
CA2235521A1 (en) 1997-05-01
PL182269B1 (en) 2001-12-31
NO981797D0 (no) 1998-04-22
WO1997016009A1 (fr) 1997-05-01
NO981796L (no) 1998-04-23
ATE298958T1 (de) 2005-07-15
DE69634902T2 (de) 2006-05-18
EP0857385A1 (fr) 1998-08-12
EP0857386A1 (fr) 1998-08-12
PL326507A1 (en) 1998-09-28
EP0857386B1 (fr) 2005-06-29
CA2235521C (en) 2003-10-14
DE69624583T2 (de) 2003-06-26
US7280592B1 (en) 2007-10-09
FR2740286B1 (fr) 1998-01-02
EP0857385B1 (fr) 2002-10-30

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Legal Events

Date Code Title Description
B08F Application dismissed because of non-payment of annual fees [chapter 8.6 patent gazette]