CA2268096C - Traitement reparti des signaux audio dans un reseau connaissant des retards de transmission - Google Patents
Traitement reparti des signaux audio dans un reseau connaissant des retards de transmission Download PDFInfo
- Publication number
- CA2268096C CA2268096C CA002268096A CA2268096A CA2268096C CA 2268096 C CA2268096 C CA 2268096C CA 002268096 A CA002268096 A CA 002268096A CA 2268096 A CA2268096 A CA 2268096A CA 2268096 C CA2268096 C CA 2268096C
- Authority
- CA
- Canada
- Prior art keywords
- signal
- echo
- network
- circuitry constructed
- power
- 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 - Fee Related
Links
- 230000005236 sound signal Effects 0.000 title claims abstract description 13
- 238000012545 processing Methods 0.000 title claims description 17
- 230000005540 biological transmission Effects 0.000 title description 9
- 238000000034 method Methods 0.000 claims abstract description 25
- 230000000694 effects Effects 0.000 claims description 22
- 230000003111 delayed effect Effects 0.000 claims description 11
- 238000001914 filtration Methods 0.000 claims description 5
- 230000004044 response Effects 0.000 claims description 5
- 230000001629 suppression Effects 0.000 claims description 4
- 230000004048 modification Effects 0.000 claims description 3
- 238000012986 modification Methods 0.000 claims description 3
- 230000002265 prevention Effects 0.000 abstract description 5
- 241000219498 Alnus glutinosa Species 0.000 description 15
- 230000007704 transition Effects 0.000 description 15
- 238000010586 diagram Methods 0.000 description 14
- 238000012360 testing method Methods 0.000 description 4
- 206010019133 Hangover Diseases 0.000 description 3
- 238000002592 echocardiography Methods 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 230000007246 mechanism Effects 0.000 description 3
- 230000003044 adaptive effect Effects 0.000 description 2
- 238000013459 approach Methods 0.000 description 2
- 238000004364 calculation method Methods 0.000 description 2
- 230000001419 dependent effect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 235000008694 Humulus lupulus Nutrition 0.000 description 1
- 230000002238 attenuated effect Effects 0.000 description 1
- 238000004422 calculation algorithm Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000001934 delay Effects 0.000 description 1
- 238000009795 derivation Methods 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
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- 230000001360 synchronised effect Effects 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M9/00—Arrangements for interconnection not involving centralised switching
- H04M9/08—Two-way loud-speaking telephone systems with means for conditioning the signal, e.g. for suppressing echoes for one or both directions of traffic
- H04M9/082—Two-way loud-speaking telephone systems with means for conditioning the signal, e.g. for suppressing echoes for one or both directions of traffic using echo cancellers
-
- 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)
- Signal Processing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
- Telephonic Communication Services (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA002268096A CA2268096C (fr) | 1996-10-29 | 1997-10-17 | Traitement reparti des signaux audio dans un reseau connaissant des retards de transmission |
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA73929496 | 1996-10-29 | ||
| CA08/739,294 | 1996-10-29 | ||
| CA002268096A CA2268096C (fr) | 1996-10-29 | 1997-10-17 | Traitement reparti des signaux audio dans un reseau connaissant des retards de transmission |
| PCT/CA1997/000772 WO1998019441A2 (fr) | 1996-10-29 | 1997-10-17 | Traitement reparti des signaux audio dans un reseau connaissant des retards de transmission |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2268096A1 CA2268096A1 (fr) | 1998-05-07 |
| CA2268096C true CA2268096C (fr) | 2005-04-05 |
Family
ID=29712997
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002268096A Expired - Fee Related CA2268096C (fr) | 1996-10-29 | 1997-10-17 | Traitement reparti des signaux audio dans un reseau connaissant des retards de transmission |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA2268096C (fr) |
-
1997
- 1997-10-17 CA CA002268096A patent/CA2268096C/fr not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CA2268096A1 (fr) | 1998-05-07 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| MKLA | Lapsed |