GB2161345B - Adaptive filters - Google Patents

Adaptive filters

Info

Publication number
GB2161345B
GB2161345B GB08516782A GB8516782A GB2161345B GB 2161345 B GB2161345 B GB 2161345B GB 08516782 A GB08516782 A GB 08516782A GB 8516782 A GB8516782 A GB 8516782A GB 2161345 B GB2161345 B GB 2161345B
Authority
GB
United Kingdom
Prior art keywords
adaptive filters
adaptive
filters
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
GB08516782A
Other versions
GB8516782D0 (en
GB2161345A (en
Inventor
Peter Frank Adams
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 GB8516782D0 publication Critical patent/GB8516782D0/en
Publication of GB2161345A publication Critical patent/GB2161345A/en
Application granted granted Critical
Publication of GB2161345B publication Critical patent/GB2161345B/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • 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

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Filters That Use Time-Delay Elements (AREA)
GB08516782A 1984-07-05 1985-07-02 Adaptive filters Expired GB2161345B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB848417136A GB8417136D0 (en) 1984-07-05 1984-07-05 Adaptive filters

Publications (3)

Publication Number Publication Date
GB8516782D0 GB8516782D0 (en) 1985-08-07
GB2161345A GB2161345A (en) 1986-01-08
GB2161345B true GB2161345B (en) 1987-09-16

Family

ID=10563440

Family Applications (2)

Application Number Title Priority Date Filing Date
GB848417136A Pending GB8417136D0 (en) 1984-07-05 1984-07-05 Adaptive filters
GB08516782A Expired GB2161345B (en) 1984-07-05 1985-07-02 Adaptive filters

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB848417136A Pending GB8417136D0 (en) 1984-07-05 1984-07-05 Adaptive filters

Country Status (1)

Country Link
GB (2) GB8417136D0 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6108681A (en) * 1998-02-27 2000-08-22 Philips Electronics North America Corporation System for sharing resources in a digital filter
US20210399764A1 (en) * 2021-09-01 2021-12-23 Intel Corporation Near-end crosstalk cancellation system

Also Published As

Publication number Publication date
GB8516782D0 (en) 1985-08-07
GB2161345A (en) 1986-01-08
GB8417136D0 (en) 1984-08-08

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20040702