DE2215402C2 - - Google Patents
Info
- Publication number
- DE2215402C2 DE2215402C2 DE19722215402D DE2215402DA DE2215402C2 DE 2215402 C2 DE2215402 C2 DE 2215402C2 DE 19722215402 D DE19722215402 D DE 19722215402D DE 2215402D A DE2215402D A DE 2215402DA DE 2215402 C2 DE2215402 C2 DE 2215402C2
- Authority
- DE
- Germany
- 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
- H04B3/20—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)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE2215402 | 1972-03-29 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| DE2215402B1 DE2215402B1 (de) | 1973-09-20 |
| DE2215402C2 true DE2215402C2 (forum.php) | 1974-04-18 |
Family
ID=5840571
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19722215402D Granted DE2215402B1 (de) | 1972-03-29 | 1972-03-29 | Echokompensator fur ein Nachrichten übertragungssystem |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE2215402B1 (forum.php) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2469044A1 (fr) * | 1979-08-30 | 1981-05-08 | Thomson Csf Mat Tel | Procede de traitement en temps partage de signaux numeriques et application a un annuleur d'echo autoadaptatif multiplexe |
| US6937723B2 (en) * | 2002-10-25 | 2005-08-30 | Avaya Technology Corp. | Echo detection and monitoring |
| US7734034B1 (en) | 2005-06-21 | 2010-06-08 | Avaya Inc. | Remote party speaker phone detection |
-
1972
- 1972-03-29 DE DE19722215402D patent/DE2215402B1/de active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| DE2215402B1 (de) | 1973-09-20 |
Similar Documents
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| E77 | Valid patent as to the heymanns-index 1977 | ||
| 8339 | Ceased/non-payment of the annual fee |