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
Authority: IT; Italy
Prior art keywords: way communications; echo cancellers; communications circuits; automatic register; cancer system
Prior art date: 1975-10-23

Application number

IT69553/76A

Other languages

English (en)

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.)

1975-10-23

Filing date

1976-10-22

Publication date

1985-03-29

1976-10-22 Application filed by Communications Satellite Corp filed Critical Communications Satellite Corp

1985-03-29 Application granted granted Critical

1985-03-29 Publication of IT1070494B publication Critical patent/IT1070494B/it

Links

206010028980 Neoplasm Diseases 0.000 title 1
201000011510 cancer Diseases 0.000 title 1

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 (it)
JP (2)	JPS5252516A (it)
AU (1)	AU498405B2 (it)
BR (1)	BR7607021A (it)
CA (1)	CA1065514A (it)
DE (1)	DE2647305A1 (it)
FR (1)	FR2333388A1 (it)
GB (1)	GB1509988A (it)
IT (1)	IT1070494B (it)
SE (1)	SE406401B (it)

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

1975
- 1975-10-23 US US05/625,354 patent/US4021623A/en not_active Expired - Lifetime
1976
- 1976-10-04 CA CA262,668A patent/CA1065514A/en not_active Expired
- 1976-10-13 AU AU18643/76A patent/AU498405B2/en not_active Expired
- 1976-10-20 DE DE19762647305 patent/DE2647305A1/de not_active Withdrawn
- 1976-10-20 BR BR7607021A patent/BR7607021A/pt unknown
- 1976-10-21 SE SE7611711A patent/SE406401B/xx unknown
- 1976-10-22 IT IT69553/76A patent/IT1070494B/it active
- 1976-10-22 GB GB44083/76A patent/GB1509988A/en not_active Expired
- 1976-10-22 FR FR7631887A patent/FR2333388A1/fr active Granted
- 1976-10-23 JP JP51126821A patent/JPS5252516A/ja active Pending
1983
- 1983-11-12 JP JP58211733A patent/JPS602810B2/ja not_active Expired

Also Published As

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

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