FR2333388B1 - - Google Patents
Info
- Publication number
- FR2333388B1 FR2333388B1 FR7631887A FR7631887A FR2333388B1 FR 2333388 B1 FR2333388 B1 FR 2333388B1 FR 7631887 A FR7631887 A FR 7631887A FR 7631887 A FR7631887 A FR 7631887A FR 2333388 B1 FR2333388 B1 FR 2333388B1
- Authority
- FR
- France
- 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 |
|---|---|---|---|
| US05/625,354 US4021623A (en) | 1975-10-23 | 1975-10-23 | Automatic H-register clear for prevention of erroneous convolution in digital adaptive echo canceller |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2333388A1 FR2333388A1 (fr) | 1977-06-24 |
| FR2333388B1 true FR2333388B1 (https=) | 1981-08-07 |
Family
ID=24505681
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR7631887A Granted FR2333388A1 (fr) | 1975-10-23 | 1976-10-22 | Dispositif suppresseur d'echos pour les telecommunications |
Country Status (10)
| Country | Link |
|---|---|
| US (1) | US4021623A (https=) |
| JP (2) | JPS5252516A (https=) |
| AU (1) | AU498405B2 (https=) |
| BR (1) | BR7607021A (https=) |
| CA (1) | CA1065514A (https=) |
| DE (1) | DE2647305A1 (https=) |
| FR (1) | FR2333388A1 (https=) |
| GB (1) | GB1509988A (https=) |
| IT (1) | IT1070494B (https=) |
| SE (1) | SE406401B (https=) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56153850A (en) * | 1980-04-28 | 1981-11-28 | Kokusai Denshin Denwa Co Ltd <Kdd> | Echo control system |
| US4412299A (en) * | 1981-02-02 | 1983-10-25 | Teltone Corporation | Phase jitter detector |
| DE3245588A1 (de) * | 1982-12-09 | 1984-06-14 | Standard Elektrik Lorenz Ag, 7000 Stuttgart | Verfahren und schaltungsanordnung zur fehlerortung bei einem digitalen fernmelde-teilnehmeranschluss |
| JP3068996B2 (ja) * | 1993-12-21 | 2000-07-24 | 真作 森 | 適応フィルタ装置及びそのステップゲインの発生方法 |
| JPH08265224A (ja) * | 1995-03-22 | 1996-10-11 | Nec Corp | エコーキャンセラ |
| US6125179A (en) * | 1995-12-13 | 2000-09-26 | 3Com Corporation | Echo control device with quick response to sudden echo-path change |
| US10679227B2 (en) * | 2015-11-06 | 2020-06-09 | Mastercard International Incorporated | Systems and methods for mapping online data to data of interest |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3836734A (en) * | 1971-12-03 | 1974-09-17 | Communications Satellite Corp | Adaptive echo canceller with multi-increment gain coefficient corrections |
| US3789165A (en) * | 1972-04-24 | 1974-01-29 | Communications Satellite Corp | Echo canceller with variable threshold |
| US3894200A (en) * | 1973-10-10 | 1975-07-08 | Communications Satellite Corp | Adaptive echo canceller with digital center clipping |
-
1975
- 1975-10-23 US US05/625,354 patent/US4021623A/en not_active Expired - Lifetime
-
1976
- 1976-10-04 CA CA262,668A patent/CA1065514A/en not_active Expired
- 1976-10-13 AU AU18643/76A patent/AU498405B2/en not_active Expired
- 1976-10-20 BR BR7607021A patent/BR7607021A/pt unknown
- 1976-10-20 DE DE19762647305 patent/DE2647305A1/de not_active Withdrawn
- 1976-10-21 SE SE7611711A patent/SE406401B/xx unknown
- 1976-10-22 GB GB44083/76A patent/GB1509988A/en not_active Expired
- 1976-10-22 IT IT69553/76A patent/IT1070494B/it active
- 1976-10-22 FR FR7631887A patent/FR2333388A1/fr active Granted
- 1976-10-23 JP JP51126821A patent/JPS5252516A/ja active Pending
-
1983
- 1983-11-12 JP JP58211733A patent/JPS602810B2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5252516A (en) | 1977-04-27 |
| US4021623A (en) | 1977-05-03 |
| JPS59131232A (ja) | 1984-07-28 |
| AU1864376A (en) | 1978-04-20 |
| AU498405B2 (en) | 1979-03-08 |
| SE7611711L (sv) | 1977-04-24 |
| BR7607021A (pt) | 1977-09-06 |
| SE406401B (sv) | 1979-02-05 |
| JPS602810B2 (ja) | 1985-01-24 |
| FR2333388A1 (fr) | 1977-06-24 |
| GB1509988A (en) | 1978-05-10 |
| IT1070494B (it) | 1985-03-29 |
| DE2647305A1 (de) | 1977-04-28 |
| CA1065514A (en) | 1979-10-30 |
Similar Documents
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ST | Notification of lapse |