DE3587942T2 - Adaptive Erkennungseinrichtung. - Google Patents

Adaptive Erkennungseinrichtung.

Info

Publication number
DE3587942T2
DE3587942T2 DE3587942T DE3587942T DE3587942T2 DE 3587942 T2 DE3587942 T2 DE 3587942T2 DE 3587942 T DE3587942 T DE 3587942T DE 3587942 T DE3587942 T DE 3587942T DE 3587942 T2 DE3587942 T2 DE 3587942T2
Authority
DE
Germany
Prior art keywords
value
input signal
store
input
addressable
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 - Fee Related
Application number
DE3587942T
Other languages
English (en)
Other versions
DE3587942D1 (de
Inventor
Robert Denis Johnston
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.)
British Telecommunications PLC
Original Assignee
British Telecommunications PLC
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 British Telecommunications PLC filed Critical British Telecommunications PLC
Publication of DE3587942D1 publication Critical patent/DE3587942D1/de
Application granted granted Critical
Publication of DE3587942T2 publication Critical patent/DE3587942T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • 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
    • H04B3/231—Echo cancellers using readout of a memory to provide the echo replica

Landscapes

  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Engineering & Computer Science (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Optical Communication System (AREA)
  • Filters That Use Time-Delay Elements (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
  • Complex Calculations (AREA)
  • Character Discrimination (AREA)
  • Image Analysis (AREA)
  • Image Processing (AREA)
  • Radar Systems Or Details Thereof (AREA)
  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
  • Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
DE3587942T 1984-10-26 1985-10-25 Adaptive Erkennungseinrichtung. Expired - Fee Related DE3587942T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB848427165A GB8427165D0 (en) 1984-10-26 1984-10-26 Adaptive recognising device

Publications (2)

Publication Number Publication Date
DE3587942D1 DE3587942D1 (de) 1994-12-08
DE3587942T2 true DE3587942T2 (de) 1995-03-30

Family

ID=10568818

Family Applications (2)

Application Number Title Priority Date Filing Date
DE8585307741T Expired - Fee Related DE3582866D1 (de) 1984-10-26 1985-10-25 Adaptive erkennungseinrichtung.
DE3587942T Expired - Fee Related DE3587942T2 (de) 1984-10-26 1985-10-25 Adaptive Erkennungseinrichtung.

Family Applications Before (1)

Application Number Title Priority Date Filing Date
DE8585307741T Expired - Fee Related DE3582866D1 (de) 1984-10-26 1985-10-25 Adaptive erkennungseinrichtung.

Country Status (7)

Country Link
US (2) US4782459A (de)
EP (2) EP0383360B1 (de)
JP (2) JPH0744423B2 (de)
AT (2) ATE113774T1 (de)
DE (2) DE3582866D1 (de)
GB (1) GB8427165D0 (de)
HK (2) HK91496A (de)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8427165D0 (en) 1984-10-26 1984-12-05 British Telecomm Adaptive recognising device
US5414865A (en) * 1985-09-17 1995-05-09 Beran; James T. Self-programming with limited sequential memory capacity
GB8716194D0 (en) * 1987-07-09 1987-08-12 British Telecomm Speech recognition
DE3778702D1 (de) * 1987-10-30 1992-06-04 Ibm Analog-digital/digital-analogwandlersystem und geraet zur echoannullierung unter verwendung eines solchen systems.
JPH01245607A (ja) * 1988-03-25 1989-09-29 Ricoh Co Ltd 合成型良限インパルス応答デジタルフィルタ
US5758148A (en) * 1989-03-10 1998-05-26 Board Of Regents, The University Of Texas System System and method for searching a data base using a content-searchable memory
GB8906558D0 (en) * 1989-03-22 1989-05-04 British Telecomm Pattern recognition
US6272241B1 (en) 1989-03-22 2001-08-07 British Telecommunications Public Limited Company Pattern recognition
GB9107416D0 (en) * 1991-04-09 1991-05-22 Active Noise & Vibration Tech Active noise reduction
JP3093869B2 (ja) * 1992-04-28 2000-10-03 オリンパス光学工業株式会社 画像取り込み装置
US6628780B2 (en) * 1997-10-31 2003-09-30 Lucent Technologies Inc. Echo cancellation in the network for data applications
US8077642B2 (en) * 2007-12-28 2011-12-13 Intel Corporation Methods and apparatus for signal echo cancellation and transmitter calibration in full duplex systems

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2118410A5 (de) * 1970-12-17 1972-07-28 Ibm France
NO140648C (no) * 1977-10-24 1983-03-29 Elektrisk Bureau As Direktiv kobler.
US4535206A (en) * 1980-04-09 1985-08-13 At&T Bell Laboratories Echo cancellation in two-wire full-duplex data transmission with estimation of far-end data components
US4435823A (en) * 1980-12-29 1984-03-06 Harris Corporation Adaptive equalizer capable of linear and nonlinear weighting
US4405840A (en) * 1981-03-05 1983-09-20 Bell Telephone Laboratories, Incorporated Echo canceler far end energy discriminator
GB2095067B (en) * 1981-03-12 1984-10-03 Standard Telephones Cables Ltd Digital filter arrangement
CA1173128A (en) * 1981-10-13 1984-08-21 Pok F. Lee Echo cancellation using transversal filters
FR2517905B1 (fr) * 1981-12-09 1985-11-29 Telecommunications Sa Dispositif d'initialisation pour annuleur d'echo et son application aux echos lointains
JPS58223928A (ja) * 1982-06-23 1983-12-26 Nec Corp エコ−キヤンセラ−装置
GB2123259A (en) * 1982-06-25 1984-01-25 Philips Electronic Associated Digital duplex communication system
US4669116A (en) * 1982-12-09 1987-05-26 Regents Of The University Of California Non-linear echo cancellation of data signals
GB8400791D0 (en) * 1984-01-12 1984-02-15 British Telecomm Digital filter
GB8427165D0 (en) 1984-10-26 1984-12-05 British Telecomm Adaptive recognising device

Also Published As

Publication number Publication date
HK91496A (en) 1996-05-31
ATE63658T1 (de) 1991-06-15
JPS61113313A (ja) 1986-05-31
EP0183389A1 (de) 1986-06-04
GB8427165D0 (en) 1984-12-05
EP0383360A3 (en) 1990-10-17
DE3587942D1 (de) 1994-12-08
EP0383360B1 (de) 1994-11-02
EP0183389B1 (de) 1991-05-15
ATE113774T1 (de) 1994-11-15
DE3582866D1 (de) 1991-06-20
HK137796A (en) 1996-08-02
JPH0795670B2 (ja) 1995-10-11
US4782459A (en) 1988-11-01
USRE34205E (en) 1993-03-30
EP0383360A2 (de) 1990-08-22
JPH06112771A (ja) 1994-04-22
JPH0744423B2 (ja) 1995-05-15

Similar Documents

Publication Publication Date Title
ATE113774T1 (de) Adaptive erkennungseinrichtung.
KR890001374A (ko) 선국장치
AU8214591A (en) Neural processing devices with learning capability
ATE23928T1 (de) Wortverarbeitungssystem.
KR840001977A (ko) 벡터성분 어드레싱을 갖는 디지탈 송신기
EP0369415A3 (de) Sortierschaltung
JPS6473599A (en) Storage device
JPS56111961A (en) Data file control device
JPS57111669A (en) Output system for conjugation form of word
JPS6431238A (en) System for controlling store buffer
JPS57137963A (en) Electronic interpreter
EP0352806A3 (de) Cache-Speicher und Zugriffssteuergerät mit solchem Speicher
JPS5786970A (en) Doubled computer system
JPS54145443A (en) Data memory circuit
TW259868B (en) Delay circuit
KR880014806A (ko) 텔레텍스트 콘트롤러 테스트방법
JPS6431283A (en) On-line character recognition device with automatic learning function
JPS5774887A (en) Associative memory device
JPS6467653A (en) Cache memory for set associative system
KR900016857A (ko) 클리어 블루회로
GB1317053A (en) Search-minimized optimum processor
JPS5798051A (en) Memory system of scan in/out data
JPS647271A (en) Character recognition system
JPS57137938A (en) Data processor
JPS5647993A (en) Signal memory device

Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee