FR2615057B1 - ECHO PATH SIMULATION METHOD AND DEVICE FOR TESTING ECHO CANCERS - Google Patents

ECHO PATH SIMULATION METHOD AND DEVICE FOR TESTING ECHO CANCERS

Info

Publication number
FR2615057B1
FR2615057B1 FR8706314A FR8706314A FR2615057B1 FR 2615057 B1 FR2615057 B1 FR 2615057B1 FR 8706314 A FR8706314 A FR 8706314A FR 8706314 A FR8706314 A FR 8706314A FR 2615057 B1 FR2615057 B1 FR 2615057B1
Authority
FR
France
Prior art keywords
echo
cancers
testing
simulation method
path simulation
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
FR8706314A
Other languages
French (fr)
Other versions
FR2615057A1 (en
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to FR8706314A priority Critical patent/FR2615057B1/en
Publication of FR2615057A1 publication Critical patent/FR2615057A1/en
Application granted granted Critical
Publication of FR2615057B1 publication Critical patent/FR2615057B1/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B3/00—Line transmission systems
    • H04B3/02—Details
    • H04B3/40—Artificial lines; Networks simulating a line of certain length
    • 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
    • H04B3/493—Testing echo effects or singing

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
FR8706314A 1987-05-05 1987-05-05 ECHO PATH SIMULATION METHOD AND DEVICE FOR TESTING ECHO CANCERS Expired FR2615057B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR8706314A FR2615057B1 (en) 1987-05-05 1987-05-05 ECHO PATH SIMULATION METHOD AND DEVICE FOR TESTING ECHO CANCERS

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8706314A FR2615057B1 (en) 1987-05-05 1987-05-05 ECHO PATH SIMULATION METHOD AND DEVICE FOR TESTING ECHO CANCERS

Publications (2)

Publication Number Publication Date
FR2615057A1 FR2615057A1 (en) 1988-11-10
FR2615057B1 true FR2615057B1 (en) 1989-06-16

Family

ID=9350779

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8706314A Expired FR2615057B1 (en) 1987-05-05 1987-05-05 ECHO PATH SIMULATION METHOD AND DEVICE FOR TESTING ECHO CANCERS

Country Status (1)

Country Link
FR (1) FR2615057B1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4105958A (en) * 1976-02-02 1978-08-08 Signatron, Inc. Large delay spread channel simulator
JPS6068733A (en) * 1983-09-24 1985-04-19 Anritsu Corp Artificial line device
SE441052B (en) * 1984-02-01 1985-09-02 Ellemtel Utvecklings Ab PROCEDURE TO TEST THE FUNCTION OF AN ADAPTIVE ECO-ELIMINATION DEVICE

Also Published As

Publication number Publication date
FR2615057A1 (en) 1988-11-10

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Legal Events

Date Code Title Description
TP Transmission of property
TP Transmission of property
ST Notification of lapse