IT1070494B - Sistema annullatore automatico del registro h per cancellatori degliechi circuiti di comunicazioni a due vie - Google Patents

Sistema annullatore automatico del registro h per cancellatori degliechi circuiti di comunicazioni a due vie

Info

Publication number
IT1070494B
IT1070494B IT69553/76A IT6955376A IT1070494B IT 1070494 B IT1070494 B IT 1070494B IT 69553/76 A IT69553/76 A IT 69553/76A IT 6955376 A IT6955376 A IT 6955376A IT 1070494 B IT1070494 B IT 1070494B
Authority
IT
Italy
Prior art keywords
way communications
echo cancellers
communications circuits
automatic register
cancer system
Prior art date
Application number
IT69553/76A
Other languages
English (en)
Italian (it)
Original Assignee
Communications Satellite Corp
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 Communications Satellite Corp filed Critical Communications Satellite Corp
Application granted granted Critical
Publication of IT1070494B publication Critical patent/IT1070494B/it

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

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
IT69553/76A 1975-10-23 1976-10-22 Sistema annullatore automatico del registro h per cancellatori degliechi circuiti di comunicazioni a due vie IT1070494B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/625,354 US4021623A (en) 1975-10-23 1975-10-23 Automatic H-register clear for prevention of erroneous convolution in digital adaptive echo canceller

Publications (1)

Publication Number Publication Date
IT1070494B true IT1070494B (it) 1985-03-29

Family

ID=24505681

Family Applications (1)

Application Number Title Priority Date Filing Date
IT69553/76A IT1070494B (it) 1975-10-23 1976-10-22 Sistema annullatore automatico del registro h per cancellatori degliechi circuiti di comunicazioni a due vie

Country Status (10)

Country Link
US (1) US4021623A (https=)
JP (2) JPS5252516A (https=)
AU (1) AU498405B2 (https=)
BR (1) BR7607021A (https=)
CA (1) CA1065514A (https=)
DE (1) DE2647305A1 (https=)
FR (1) FR2333388A1 (https=)
GB (1) GB1509988A (https=)
IT (1) IT1070494B (https=)
SE (1) SE406401B (https=)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56153850A (en) * 1980-04-28 1981-11-28 Kokusai Denshin Denwa Co Ltd <Kdd> Echo control system
US4412299A (en) * 1981-02-02 1983-10-25 Teltone Corporation Phase jitter detector
DE3245588A1 (de) * 1982-12-09 1984-06-14 Standard Elektrik Lorenz Ag, 7000 Stuttgart Verfahren und schaltungsanordnung zur fehlerortung bei einem digitalen fernmelde-teilnehmeranschluss
JP3068996B2 (ja) * 1993-12-21 2000-07-24 真作 森 適応フィルタ装置及びそのステップゲインの発生方法
JPH08265224A (ja) * 1995-03-22 1996-10-11 Nec Corp エコーキャンセラ
US6125179A (en) * 1995-12-13 2000-09-26 3Com Corporation Echo control device with quick response to sudden echo-path change
US10679227B2 (en) * 2015-11-06 2020-06-09 Mastercard International Incorporated Systems and methods for mapping online data to data of interest

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3836734A (en) * 1971-12-03 1974-09-17 Communications Satellite Corp Adaptive echo canceller with multi-increment gain coefficient corrections
US3789165A (en) * 1972-04-24 1974-01-29 Communications Satellite Corp Echo canceller with variable threshold
US3894200A (en) * 1973-10-10 1975-07-08 Communications Satellite Corp Adaptive echo canceller with digital center clipping

Also Published As

Publication number Publication date
JPS5252516A (en) 1977-04-27
US4021623A (en) 1977-05-03
JPS59131232A (ja) 1984-07-28
AU1864376A (en) 1978-04-20
AU498405B2 (en) 1979-03-08
SE7611711L (sv) 1977-04-24
BR7607021A (pt) 1977-09-06
FR2333388B1 (https=) 1981-08-07
SE406401B (sv) 1979-02-05
JPS602810B2 (ja) 1985-01-24
FR2333388A1 (fr) 1977-06-24
GB1509988A (en) 1978-05-10
DE2647305A1 (de) 1977-04-28
CA1065514A (en) 1979-10-30

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