SE8802076L - Adaptiv digitalfilter - Google Patents

Adaptiv digitalfilter

Info

Publication number
SE8802076L
SE8802076L SE8802076A SE8802076A SE8802076L SE 8802076 L SE8802076 L SE 8802076L SE 8802076 A SE8802076 A SE 8802076A SE 8802076 A SE8802076 A SE 8802076A SE 8802076 L SE8802076 L SE 8802076L
Authority
SE
Sweden
Prior art keywords
filter
recursive
digital filter
recursive part
adaptive digital
Prior art date
Application number
SE8802076A
Other languages
Unknown language ( )
English (en)
Other versions
SE461308B (sv
SE8802076D0 (sv
Inventor
T Andre
Original Assignee
Ericsson Telefon Ab L M
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
Publication of SE8802076D0 publication Critical patent/SE8802076D0/sv
Priority to SE8802076A priority Critical patent/SE461308B/sv
Application filed by Ericsson Telefon Ab L M filed Critical Ericsson Telefon Ab L M
Priority to JP1505721A priority patent/JPH03502634A/ja
Priority to DE8989850107T priority patent/DE68905246T2/de
Priority to EP89850107A priority patent/EP0347394B1/en
Priority to KR1019900700205A priority patent/KR960000843B1/ko
Priority to ES198989850107T priority patent/ES2038449T3/es
Priority to AU35670/89A priority patent/AU609611B2/en
Priority to BR898906966A priority patent/BR8906966A/pt
Priority to PCT/SE1989/000176 priority patent/WO1989012360A1/en
Priority to US07/334,712 priority patent/US5014232A/en
Priority to TR89/0338A priority patent/TR24214A/xx
Priority to CA000597705A priority patent/CA1310708C/en
Priority to IE135789A priority patent/IE62809B1/en
Priority to MX016126A priority patent/MX170248B/es
Priority to CN89103704A priority patent/CN1014288B/zh
Publication of SE8802076L publication Critical patent/SE8802076L/sv
Priority to NO900357A priority patent/NO301203B1/no
Priority to FI900406A priority patent/FI93409C/sv
Priority to DK021990A priority patent/DK170319B1/da
Publication of SE461308B publication Critical patent/SE461308B/sv
Priority to GR930400407T priority patent/GR3007321T3/el

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H21/00—Adaptive networks
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H21/00—Adaptive networks
    • H03H21/0012—Digital adaptive filters
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B3/00—Line transmission systems
    • H04B3/02—Details
    • H04B3/20—Reducing echo effects or singing; Opening or closing transmitting path; Conditioning for transmission in one direction or the other
    • H04B3/23—Reducing echo effects or singing; Opening or closing transmitting path; Conditioning for transmission in one direction or the other using a replica of transmitted signal in the time domain, e.g. echo cancellers
    • H04B3/237—Reducing echo effects or singing; Opening or closing transmitting path; Conditioning for transmission in one direction or the other using a replica of transmitted signal in the time domain, e.g. echo cancellers using two adaptive filters, e.g. for near end and for end echo cancelling

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Filters That Use Time-Delay Elements (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Noise Elimination (AREA)
SE8802076A 1988-06-03 1988-06-03 Adaptivt digitalt filter omfattande en icke rekursiv del och en rekursiv del SE461308B (sv)

Priority Applications (19)

Application Number Priority Date Filing Date Title
SE8802076A SE461308B (sv) 1988-06-03 1988-06-03 Adaptivt digitalt filter omfattande en icke rekursiv del och en rekursiv del
JP1505721A JPH03502634A (ja) 1988-06-03 1989-04-05 非再帰部分および再帰部分を含む適応型ディジタルフィルタ
DE8989850107T DE68905246T2 (de) 1988-06-03 1989-04-05 Adaptives, digitales filter mit einem nicht rekursiven teil und einem rekursiven teil.
EP89850107A EP0347394B1 (en) 1988-06-03 1989-04-05 Adaptive, digital filter including a non-recursive part and a recursive part
KR1019900700205A KR960000843B1 (ko) 1988-06-03 1989-04-05 비재귀부분과 재귀부분을 포함하는 적응디지탈 필터
ES198989850107T ES2038449T3 (es) 1988-06-03 1989-04-05 Filtro digital adaptable que incluye una parte no recurrente y una parte recurrente.
AU35670/89A AU609611B2 (en) 1988-06-03 1989-04-05 Adaptive, digital filter including a non-recursive part and a recursive part
BR898906966A BR8906966A (pt) 1988-06-03 1989-04-05 Filtro digital auto-adaptavel
PCT/SE1989/000176 WO1989012360A1 (en) 1988-06-03 1989-04-05 Adaptive, digital filter including a non-recursive part and a recursive part
US07/334,712 US5014232A (en) 1988-06-03 1989-04-07 Adaptive digital filter having non-recursive and recursive filter elements
TR89/0338A TR24214A (tr) 1988-06-03 1989-04-19 Doenueslue bir kismi doenuessuez bir kismi kapsayan uyumlu dijital filtre
CA000597705A CA1310708C (en) 1988-06-03 1989-04-25 Adaptive, digital filter including a non-recursive part and a recursive part
IE135789A IE62809B1 (en) 1988-06-03 1989-04-26 Adaptive digital filter including a non-recursive part and a recursive part
MX016126A MX170248B (es) 1988-06-03 1989-05-19 Filtro digital, adaptativo, que incluye una parte no recursiva y una parte recursiva
CN89103704A CN1014288B (zh) 1988-06-03 1989-06-03 包括非递归部分和递归部分的自适应数字滤波器
NO900357A NO301203B1 (no) 1988-06-03 1990-01-25 Adaptivt, digitalt filter innbefattende en ikke-rekursiv del og en rekursiv del
FI900406A FI93409C (sv) 1988-06-03 1990-01-25 Adaptivt digitalt filter omfattande en icke rekursiv del och en rekursiv del
DK021990A DK170319B1 (da) 1988-06-03 1990-01-26 Adaptivt digitalt filter med en ikke rekursiv del og en rekursiv del
GR930400407T GR3007321T3 (sv) 1988-06-03 1993-03-11

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE8802076A SE461308B (sv) 1988-06-03 1988-06-03 Adaptivt digitalt filter omfattande en icke rekursiv del och en rekursiv del

Publications (3)

Publication Number Publication Date
SE8802076D0 SE8802076D0 (sv) 1988-06-03
SE8802076L true SE8802076L (sv) 1989-12-04
SE461308B SE461308B (sv) 1990-01-29

Family

ID=20372511

Family Applications (1)

Application Number Title Priority Date Filing Date
SE8802076A SE461308B (sv) 1988-06-03 1988-06-03 Adaptivt digitalt filter omfattande en icke rekursiv del och en rekursiv del

Country Status (18)

Country Link
US (1) US5014232A (sv)
EP (1) EP0347394B1 (sv)
JP (1) JPH03502634A (sv)
KR (1) KR960000843B1 (sv)
CN (1) CN1014288B (sv)
AU (1) AU609611B2 (sv)
BR (1) BR8906966A (sv)
CA (1) CA1310708C (sv)
DE (1) DE68905246T2 (sv)
DK (1) DK170319B1 (sv)
ES (1) ES2038449T3 (sv)
FI (1) FI93409C (sv)
GR (1) GR3007321T3 (sv)
MX (1) MX170248B (sv)
NO (1) NO301203B1 (sv)
SE (1) SE461308B (sv)
TR (1) TR24214A (sv)
WO (1) WO1989012360A1 (sv)

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US5278552A (en) * 1989-10-23 1994-01-11 Jeco Company Limited Indicator control circuit
ES2076983T3 (es) * 1990-03-28 1995-11-16 Alcatel Nv Metodo para la determinacion de los coeficientes de un filtro fir en ecualizadores.
US5247474A (en) * 1991-04-18 1993-09-21 Fujitsu Ten Limited Coefficients setting method of a reverberation unit
DE69226130T2 (de) * 1991-04-23 1999-02-11 Philips Electronics N.V., Eindhoven Halbrekursiver adaptiver Entzerrer
ES2038904B1 (es) * 1991-09-10 1995-01-16 Alcatel Standard Electrica Procedimiento y dispositivo de cancelacion adaptativa de ecos acusticos.
EP0543568A2 (en) * 1991-11-22 1993-05-26 AT&T Corp. High resolution filtering using low resolution processors
US5402520A (en) * 1992-03-06 1995-03-28 Schnitta; Bonnie S. Neural network method and apparatus for retrieving signals embedded in noise and analyzing the retrieved signals
US5337264A (en) * 1992-06-01 1994-08-09 Levien Raphael L Time reversal gaussian approximation filter
US5615233A (en) * 1992-07-22 1997-03-25 Motorola, Inc. Method for channel estimation using individual adaptation
US5416799A (en) * 1992-08-10 1995-05-16 Stanford Telecommunications, Inc. Dynamically adaptive equalizer system and method
CA2145077C (en) * 1992-09-21 1998-09-01 Graham P. Eatwell Sampled-data filter with low delay
US5535204A (en) * 1993-01-08 1996-07-09 Multi-Tech Systems, Inc. Ringdown and ringback signalling for a computer-based multifunction personal communications system
US5546395A (en) * 1993-01-08 1996-08-13 Multi-Tech Systems, Inc. Dynamic selection of compression rate for a voice compression algorithm in a voice over data modem
US5452289A (en) * 1993-01-08 1995-09-19 Multi-Tech Systems, Inc. Computer-based multifunction personal communications system
US5453986A (en) * 1993-01-08 1995-09-26 Multi-Tech Systems, Inc. Dual port interface for a computer-based multifunction personal communication system
US5864560A (en) * 1993-01-08 1999-01-26 Multi-Tech Systems, Inc. Method and apparatus for mode switching in a voice over data computer-based personal communications system
US5812534A (en) * 1993-01-08 1998-09-22 Multi-Tech Systems, Inc. Voice over data conferencing for a computer-based personal communications system
US5617423A (en) * 1993-01-08 1997-04-01 Multi-Tech Systems, Inc. Voice over data modem with selectable voice compression
US5754589A (en) * 1993-01-08 1998-05-19 Multi-Tech Systems, Inc. Noncompressed voice and data communication over modem for a computer-based multifunction personal communications system
US6009082A (en) * 1993-01-08 1999-12-28 Multi-Tech Systems, Inc. Computer-based multifunction personal communication system with caller ID
JPH0784993A (ja) * 1993-09-17 1995-03-31 Fujitsu Ltd 信号抑圧装置
JP2872547B2 (ja) * 1993-10-13 1999-03-17 シャープ株式会社 格子型フィルタを用いた能動制御方法および装置
US5682386A (en) * 1994-04-19 1997-10-28 Multi-Tech Systems, Inc. Data/voice/fax compression multiplexer
US5757801A (en) * 1994-04-19 1998-05-26 Multi-Tech Systems, Inc. Advanced priority statistical multiplexer
FR2729024A1 (fr) * 1994-12-30 1996-07-05 Matra Communication Annuleur d'echo acoustique avec filtrage en sous-bandes
FI98015C (sv) * 1995-05-05 1997-03-25 Unto Kalervo Laine Förfarande för skapande av mönster för signalspektrum och anordning för genomförande av förfarandet
FI98177C (sv) 1995-06-01 1997-04-25 Nokia Mobile Phones Ltd Förfarande och kretsarrangemang för behandling av en signal innehållande interferens
EP0896481B1 (de) * 1997-08-05 2006-08-23 Micronas Semiconductor Holding AG Adaptives Filter
US7242782B1 (en) * 1998-07-31 2007-07-10 Onkyo Kk Audio signal processing circuit
US6745218B1 (en) * 1999-03-16 2004-06-01 Matsushita Electric Industrial Co., Ltd. Adaptive digital filter
US6813352B1 (en) * 1999-09-10 2004-11-02 Lucent Technologies Inc. Quadrature filter augmentation of echo canceler basis functions
DE19955596A1 (de) 1999-11-18 2001-06-13 Infineon Technologies Ag Vorrichtung und Verfahren zur Echokompensation bei Gleichlage-Übertragungsverfahren im Duplex-Betrieb über eine Zweidrahtleitung
US6980592B1 (en) * 1999-12-23 2005-12-27 Agere Systems Inc. Digital adaptive equalizer for T1/E1 long haul transceiver
US6480151B2 (en) 2000-12-29 2002-11-12 Lockheed Martin Corporation GPS receiver interference nuller with no satellite signal distortion
US7079574B2 (en) 2001-01-17 2006-07-18 Radiant Networks Plc Carrier phase recovery system for adaptive burst modems and link hopping radio networks
US6628707B2 (en) 2001-05-04 2003-09-30 Radiant Networks Plc Adaptive equalizer system for short burst modems and link hopping radio networks
US20070052556A1 (en) * 2003-04-17 2007-03-08 Koninklijke Philips Electronics N.V. Groenewoudseweg 1 Adaptive filtering
US7406493B2 (en) * 2004-03-17 2008-07-29 Tektronix, Inc. Up-sampling half-band reconstruction filtering
US7199964B2 (en) * 2005-06-29 2007-04-03 Seagate Technology Llc Adaptive voltage-mode controller for a voice coil motor
NO20053393A (no) * 2005-07-13 2006-09-11 Tandberg Telecom As Fremgangsmåte og system for ekkokansellering med liten forsinkelse.
US20090070396A1 (en) * 2006-09-29 2009-03-12 Haruka Takano Waveform equalizing device
RU198305U1 (ru) * 2020-02-26 2020-06-30 Федеральное государственное бюджетное образовательное учреждение высшего образования "МИРЭА - Российский технологический университет" Адаптивный цифровой фильтр для подавления нефлуктуационных помех

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US4495591A (en) * 1981-02-27 1985-01-22 The Regeants Of The University Of California Pipelined digital filters
DE3116266A1 (de) * 1981-04-24 1982-11-11 TE KA DE Felten & Guilleaume Fernmeldeanlagen GmbH, 8500 Nürnberg Verfahren zum entzerren eines datensignales
DE3120434A1 (de) * 1981-05-22 1982-12-16 Standard Elektrik Lorenz Ag, 7000 Stuttgart Adaptive echokompensationseinrichtung zur digitalen duplexuebertragung auf zweidrahtleitungen
JPS5834615A (ja) * 1981-08-24 1983-03-01 Victor Co Of Japan Ltd Ｉｉｒデイジタルフイルタ
FR2515901A1 (fr) * 1981-11-04 1983-05-06 Trt Telecom Radio Electr Systeme de transmission mic-differentiel avec prediction adaptative
US4791390A (en) * 1982-07-01 1988-12-13 Sperry Corporation MSE variable step adaptive filter
DE3610382A1 (de) * 1986-03-27 1987-10-01 Ant Nachrichtentech Schaltungsanordnung zur adaptiven echoloeschung in endgeraeten fuer duplex-uebertragung
US4803647A (en) * 1986-05-30 1989-02-07 Rca Licensing Corporation Sampled data audio tone control apparatus
CA1271530A (en) * 1986-07-14 1990-07-10 Masaki Kobayashi Adaptive digital filter
US5042026A (en) * 1987-03-03 1991-08-20 Nec Corporation Circuit for cancelling whole or part of a waveform using nonrecursive and recursive filters
US4811360A (en) * 1988-01-14 1989-03-07 General Datacomm, Inc. Apparatus and method for adaptively optimizing equalization delay of data communication equipment

Also Published As

Publication number Publication date
EP0347394A1 (en) 1989-12-20
WO1989012360A1 (en) 1989-12-14
ES2038449T3 (es) 1993-07-16
NO900357L (no) 1990-01-25
EP0347394B1 (en) 1993-03-10
US5014232A (en) 1991-05-07
DE68905246T2 (de) 1993-06-17
NO301203B1 (no) 1997-09-22
TR24214A (tr) 1991-07-02
DE68905246D1 (de) 1993-04-15
FI900406A0 (sv) 1990-01-25
FI93409C (sv) 1995-03-27
AU3567089A (en) 1990-01-05
CA1310708C (en) 1992-11-24
KR960000843B1 (ko) 1996-01-13
CN1038193A (zh) 1989-12-20
DK170319B1 (da) 1995-07-31
NO900357D0 (no) 1990-01-25
DK21990A (da) 1990-01-26
JPH03502634A (ja) 1991-06-13
AU609611B2 (en) 1991-05-02
KR900702646A (ko) 1990-12-08
GR3007321T3 (sv) 1993-07-30
FI93409B (sv) 1994-12-15
CN1014288B (zh) 1991-10-09
SE461308B (sv) 1990-01-29
SE8802076D0 (sv) 1988-06-03
BR8906966A (pt) 1990-12-18
DK21990D0 (da) 1990-01-26
MX170248B (es) 1993-08-12

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