FR2481024B1 - Circuit predicteur adaptatif utilisant un filtre en treillis et dispositif de codage ou de decodage mic differentiel correspondant - Google Patents

Circuit predicteur adaptatif utilisant un filtre en treillis et dispositif de codage ou de decodage mic differentiel correspondant

Info

Publication number
FR2481024B1
FR2481024B1 FR8008883A FR8008883A FR2481024B1 FR 2481024 B1 FR2481024 B1 FR 2481024B1 FR 8008883 A FR8008883 A FR 8008883A FR 8008883 A FR8008883 A FR 8008883A FR 2481024 B1 FR2481024 B1 FR 2481024B1
Authority
FR
France
Prior art keywords
predicator
adaptive
circuit
decoding device
mesh filter
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
Application number
FR8008883A
Other languages
English (en)
Other versions
FR2481024A1 (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.)
LEGUYADER ALAIN
Original Assignee
LEGUYADER ALAIN
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 LEGUYADER ALAIN filed Critical LEGUYADER ALAIN
Priority to FR8008883A priority Critical patent/FR2481024B1/fr
Priority to US06/253,154 priority patent/US4389726A/en
Priority to GB8111686A priority patent/GB2076239B/en
Priority to JP5965081A priority patent/JPS56166632A/ja
Priority to DE3115884A priority patent/DE3115884A1/de
Publication of FR2481024A1 publication Critical patent/FR2481024A1/fr
Application granted granted Critical
Publication of FR2481024B1 publication Critical patent/FR2481024B1/fr
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/03—Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
    • H04L25/03006—Arrangements for removing intersymbol interference
    • H04L25/03012—Arrangements for removing intersymbol interference operating in the time domain
    • H04L25/03019—Arrangements for removing intersymbol interference operating in the time domain adaptive, i.e. capable of adjustment during data reception
    • H04L25/03038—Arrangements for removing intersymbol interference operating in the time domain adaptive, i.e. capable of adjustment during data reception with a non-recursive structure
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H21/00—Adaptive networks
    • H03H21/0012—Digital adaptive filters
    • H03H21/0014—Lattice filters
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M3/00—Conversion of analogue values to or from differential modulation
    • H03M3/04—Differential modulation with several bits, e.g. differential pulse code modulation [DPCM]
    • H03M3/042—Differential modulation with several bits, e.g. differential pulse code modulation [DPCM] with adaptable step size, e.g. adaptive differential pulse code modulation [ADPCM]

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Power Engineering (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
FR8008883A 1980-04-21 1980-04-21 Circuit predicteur adaptatif utilisant un filtre en treillis et dispositif de codage ou de decodage mic differentiel correspondant Expired FR2481024B1 (fr)

Priority Applications (5)

Application Number Priority Date Filing Date Title
FR8008883A FR2481024B1 (fr) 1980-04-21 1980-04-21 Circuit predicteur adaptatif utilisant un filtre en treillis et dispositif de codage ou de decodage mic differentiel correspondant
US06/253,154 US4389726A (en) 1980-04-21 1981-04-10 Adaptive predicting circuit using a lattice filter and a corresponding differential PCM coding or decoding apparatus
GB8111686A GB2076239B (en) 1980-04-21 1981-04-13 Adaptive predicting circuit using a lattice filter and a corresponding differential pcm coding or decoding apparatus
JP5965081A JPS56166632A (en) 1980-04-21 1981-04-20 Adaptive predicting circuit using differential pcm coding or decoding unit corresponding to lattice filter
DE3115884A DE3115884A1 (de) 1980-04-21 1981-04-21 Adaptive vorhersageschaltung sowie diese verwendender codierer oder decodierer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8008883A FR2481024B1 (fr) 1980-04-21 1980-04-21 Circuit predicteur adaptatif utilisant un filtre en treillis et dispositif de codage ou de decodage mic differentiel correspondant

Publications (2)

Publication Number Publication Date
FR2481024A1 FR2481024A1 (fr) 1981-10-23
FR2481024B1 true FR2481024B1 (fr) 1986-07-11

Family

ID=9241151

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8008883A Expired FR2481024B1 (fr) 1980-04-21 1980-04-21 Circuit predicteur adaptatif utilisant un filtre en treillis et dispositif de codage ou de decodage mic differentiel correspondant

Country Status (5)

Country Link
US (1) US4389726A (fr)
JP (1) JPS56166632A (fr)
DE (1) DE3115884A1 (fr)
FR (1) FR2481024B1 (fr)
GB (1) GB2076239B (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4751673A (en) * 1982-03-22 1988-06-14 The Babcock & Wilcox Company System for direct comparison and selective transmission of a plurality of discrete incoming data
JPS58215822A (ja) * 1982-06-10 1983-12-15 Toshiba Corp 音声信号の予測符号化装置
CA1220867A (fr) * 1983-07-18 1987-04-21 Northern Telecom Limited Systeme de mic differentielle adaptative a adaptation guidee par residus du predicteur a retro-action
US6028929A (en) 1997-11-14 2000-02-22 Tellabs Operations, Inc. Echo canceller employing dual-H architecture having improved non-linear echo path detection
JP2001257565A (ja) * 2000-03-10 2001-09-21 Fujitsu Ltd ラティス型フィルタの反射係数の更新方法及び、装置
FR2961980A1 (fr) * 2010-06-24 2011-12-30 France Telecom Controle d'une boucle de retroaction de mise en forme de bruit dans un codeur de signal audionumerique

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3502986A (en) * 1967-12-14 1970-03-24 Bell Telephone Labor Inc Adaptive prediction for redundancy removal in data transmission systems
DE2260264C3 (de) * 1972-12-08 1975-06-05 Siemens Ag, 1000 Berlin Und 8000 Muenchen Verfahren und Anordnung zur Schätzwertbildung in einem Codierer für Differenz-Pulscodemodulation
CA1091810A (fr) * 1976-12-16 1980-12-16 Toshio Koga Codeur de prevision capable de choisir un signal parmi au moins trois signaux de prevision en deux etapes

Also Published As

Publication number Publication date
US4389726A (en) 1983-06-21
GB2076239A (en) 1981-11-25
DE3115884C2 (fr) 1989-06-01
DE3115884A1 (de) 1982-03-18
JPH0126207B2 (fr) 1989-05-23
JPS56166632A (en) 1981-12-21
GB2076239B (en) 1983-09-21
FR2481024A1 (fr) 1981-10-23

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Legal Events

Date Code Title Description
TP Transmission of property
ST Notification of lapse