AU530523B2 – Testing echo cancellor
– Google Patents
AU530523B2 – Testing echo cancellor
– Google Patents
Testing echo cancellor
Info
Publication number
AU530523B2
AU530523B2
AU55143/80A
AU5514380A
AU530523B2
AU 530523 B2
AU530523 B2
AU 530523B2
AU 55143/80 A
AU55143/80 A
AU 55143/80A
AU 5514380 A
AU5514380 A
AU 5514380A
AU 530523 B2
AU530523 B2
AU 530523B2
Authority
AU
Australia
Prior art keywords
echo cancellor
testing
testing echo
cancellor
echo
Prior art date
1979-02-05
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.)
Ceased
Application number
AU55143/80A
Other versions
AU5514380A
(en
Inventor
Loic Bernard Yves Guidoux
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.)
T.R.T.
Original Assignee
Telecommunications Radioelectriques et Telephoniques SA TRT
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.)
1979-02-05
Filing date
1980-02-01
Publication date
1983-07-21
1980-02-01
Application filed by Telecommunications Radioelectriques et Telephoniques SA TRT
filed
Critical
Telecommunications Radioelectriques et Telephoniques SA TRT
1980-08-14
Publication of AU5514380A
publication
Critical
patent/AU5514380A/en
1983-07-21
Application granted
granted
Critical
1983-07-21
Publication of AU530523B2
publication
Critical
patent/AU530523B2/en
2000-02-01
Anticipated expiration
legal-status
Critical
Status
Ceased
legal-status
Critical
Current
Links
Espacenet
Global Dossier
Discuss
Classifications
H—ELECTRICITY
H04—ELECTRIC COMMUNICATION TECHNIQUE
H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
H04L1/00—Arrangements for detecting or preventing errors in the information received
H04L1/24—Testing correct operation
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
H04B3/46—Monitoring; Testing
AU55143/80A
1979-02-05
1980-02-01
Testing echo cancellor
Ceased
AU530523B2
(en)
Applications Claiming Priority (2)
Application Number
Priority Date
Filing Date
Title
FR7902903A
FR2448258A1
(en)
1979-02-05
1979-02-05
DEVICE TESTING SYSTEM WITH AN ECHO CANCER
FR7902903
1979-02-05
Publications (2)
Publication Number
Publication Date
AU5514380A
AU5514380A
(en)
1980-08-14
AU530523B2
true
AU530523B2
(en)
1983-07-21
Family
ID=9221610
Family Applications (1)
Application Number
Title
Priority Date
Filing Date
AU55143/80A
Ceased
AU530523B2
(en)
1979-02-05
1980-02-01
Testing echo cancellor
Country Status (7)
Country
Link
US
(1)
US4549049A
(en)
EP
(1)
EP0014505B1
(en)
JP
(1)
JPS55104151A
(en)
AU
(1)
AU530523B2
(en)
CA
(1)
CA1144999A
(en)
DE
(1)
DE3060426D1
(en)
FR
(1)
FR2448258A1
(en)
Cited By (3)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
AU572607B2
(en)
*
1984-02-01
1988-05-12
Telefonaktiebolaget Lm Ericsson (Publ)
Testing the functioning of an adaptive echo canceller
AU575385B2
(en)
*
1984-03-30
1988-07-28
Siemens Aktiengesellschaft
Full duplex line testing
AU610206B2
(en)
*
1987-07-24
1991-05-16
At & T And Philips Telecommunications B.V.
Transceiver arrangement for full-duplex data transmission comprising an echo canceller and provisions for testing the arrangement
Families Citing this family (14)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
SE434789B
(en)
*
1982-12-21
1984-08-13
Ellemtel Utvecklings Ab
METHOD OF DETECTING DANGEROUS LINE TENSIONS OVER A DOUBLE LINE
JPS6239924A
(en)
*
1985-08-16
1987-02-20
Nec Corp
Data transmission equipment
US4825459A
(en)
*
1985-12-30
1989-04-25
American Telephone And Telegraph Company
Local loop test arrangement in an echo canceller based full duplex modem
SE468015B
(en)
*
1987-04-15
1992-10-19
Sunds Defibrator Ind Ab
APPLICATION FOR PREPARATION OF FIBER MASS OF LIGNOCELLULO MATERIAL
ES2037147T3
(en)
*
1987-07-16
1993-06-16
Siemens Aktiengesellschaft
TEST INSTALLATION FOR ECOS DIGITAL COMPENSATORS.
JP2580669B2
(en)
*
1988-01-26
1997-02-12
日本電気株式会社
Turnback test circuit
DE3908284C1
(en)
*
1989-03-14
1990-06-07
Siemens Ag, 1000 Berlin Und 8000 Muenchen, De
Test device for checking the cancelling function of a digital echo canceller
JP2745694B2
(en)
*
1989-06-27
1998-04-28
日本電気株式会社
Bidirectional bus transmission system
FR2674076A1
(en)
*
1991-03-14
1992-09-18
Bull Sa
INTEGRATED CIRCUIT WITH ENSURED IMPEDANCES AND APPLICATION TO RECEIVER TRANSMITTERS, IN PARTICULAR FOR COMMUNICATION BETWEEN UNITS OF A COMPUTER SYSTEM.
FR2674082B1
(en)
*
1991-03-14
1994-11-25
Bull Sa
TEST METHODS FOR BIDIRECTIONAL SERIES TRANSMISSIONS AND CIRCUITS FOR THEIR IMPLEMENTATION.
US5267300A
(en)
*
1991-10-07
1993-11-30
Racal-Datacom, Inc.
High speed digital data transmission over switched voice network
JP2763990B2
(en)
*
1992-08-12
1998-06-11
富士通株式会社
Two-wire full-duplex modem
US6011783A
(en)
*
1997-06-11
2000-01-04
Nortel Networks Corporation
Method and apparatus for monitoring echo cancellation performance within a telephone communications network
KR19990075508A
(en)
*
1998-03-20
1999-10-15
김영환
Pulse Coded Modulation Data Delay for Echo Canceller Testing
Family Cites Families (6)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
US3647993A
(en)
*
1970-05-18
1972-03-07
Wescom
Tone disabler
US3721958A
(en)
*
1971-04-30
1973-03-20
Gen Electric
Testing arrangement for a data communication system
US3783194A
(en)
*
1972-11-20
1974-01-01
Milgo Electronic Corp
Data modem having a fast turn-around time over direct distance dialed networks
NL170688C
(en)
*
1976-06-28
1982-12-01
Philips Nv
DEVICE FOR SIMULTANEOUS TWO WAY DATA TRANSMISSION ON TWO WIRE CONNECTIONS.
AU514263B2
(en)
*
1977-01-17
1981-01-29
T.R.T.
Digital echo canceller
FR2386202A1
(en)
*
1977-03-31
1978-10-27
Cit Alcatel
MODEMS local test system in duplex telephone line – converts transmitters frequencies using modulator and local oscillator
1979
1979-02-05
FR
FR7902903A
patent/FR2448258A1/en
active
Granted
1980
1980-01-29
DE
DE8080200079T
patent/DE3060426D1/en
not_active
Expired
1980-01-29
EP
EP80200079A
patent/EP0014505B1/en
not_active
Expired
1980-01-31
CA
CA000344859A
patent/CA1144999A/en
not_active
Expired
1980-02-01
AU
AU55143/80A
patent/AU530523B2/en
not_active
Ceased
1980-02-05
JP
JP1209080A
patent/JPS55104151A/en
active
Granted
1983
1983-07-18
US
US06/514,540
patent/US4549049A/en
not_active
Expired – Fee Related
Cited By (3)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
AU572607B2
(en)
*
1984-02-01
1988-05-12
Telefonaktiebolaget Lm Ericsson (Publ)
Testing the functioning of an adaptive echo canceller
AU575385B2
(en)
*
1984-03-30
1988-07-28
Siemens Aktiengesellschaft
Full duplex line testing
AU610206B2
(en)
*
1987-07-24
1991-05-16
At & T And Philips Telecommunications B.V.
Transceiver arrangement for full-duplex data transmission comprising an echo canceller and provisions for testing the arrangement
Also Published As
Publication number
Publication date
US4549049A
(en)
1985-10-22
FR2448258A1
(en)
1980-08-29
AU5514380A
(en)
1980-08-14
JPS55104151A
(en)
1980-08-09
CA1144999A
(en)
1983-04-19
EP0014505A1
(en)
1980-08-20
FR2448258B1
(en)
1982-01-08
DE3060426D1
(en)
1982-07-08
JPS6228899B2
(en)
1987-06-23
EP0014505B1
(en)
1982-05-19
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None