FR2615057B1 - ECHO PATH SIMULATION METHOD AND DEVICE FOR TESTING ECHO CANCERS - Google Patents
ECHO PATH SIMULATION METHOD AND DEVICE FOR TESTING ECHO CANCERSInfo
- 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
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)
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)
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)
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 |
-
1987
- 1987-05-05 FR FR8706314A patent/FR2615057B1/en not_active Expired
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 |