CA1056522A - Multiplex digital echo suppression system - Google Patents
Multiplex digital echo suppression systemInfo
- Publication number
- CA1056522A CA1056522A CA207,291A CA207291A CA1056522A CA 1056522 A CA1056522 A CA 1056522A CA 207291 A CA207291 A CA 207291A CA 1056522 A CA1056522 A CA 1056522A
- Authority
- CA
- Canada
- Prior art keywords
- receiving
- signal
- output
- transmitting
- timer
- 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
- 230000001629 suppression Effects 0.000 title claims abstract description 17
- 230000004044 response Effects 0.000 claims abstract description 14
- 230000000875 corresponding effect Effects 0.000 claims 2
- 230000001276 controlling effect Effects 0.000 claims 1
- 238000004891 communication Methods 0.000 description 38
- 230000006854 communication Effects 0.000 description 38
- 230000005236 sound signal Effects 0.000 description 11
- 206010019133 Hangover Diseases 0.000 description 5
- 230000002238 attenuated effect Effects 0.000 description 4
- STECJAGHUSJQJN-USLFZFAMSA-N LSM-4015 Chemical compound C1([C@@H](CO)C(=O)OC2C[C@@H]3N([C@H](C2)[C@@H]2[C@H]3O2)C)=CC=CC=C1 STECJAGHUSJQJN-USLFZFAMSA-N 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000001960 triggered effect Effects 0.000 description 2
- AYFVYJQAPQTCCC-GBXIJSLDSA-N L-threonine Chemical compound C[C@@H](O)[C@H](N)C(O)=O AYFVYJQAPQTCCC-GBXIJSLDSA-N 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000002592 echocardiography Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
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
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
- Analogue/Digital Conversion (AREA)
- Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9237173A JPS5317451B2 (enrdf_load_stackoverflow) | 1973-08-20 | 1973-08-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1056522A true CA1056522A (en) | 1979-06-12 |
Family
ID=14052550
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA207,291A Expired CA1056522A (en) | 1973-08-20 | 1974-08-19 | Multiplex digital echo suppression system |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JPS5317451B2 (enrdf_load_stackoverflow) |
| CA (1) | CA1056522A (enrdf_load_stackoverflow) |
| DE (1) | DE2439655A1 (enrdf_load_stackoverflow) |
| FR (1) | FR2246131A1 (enrdf_load_stackoverflow) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5828971B2 (ja) * | 1977-12-20 | 1983-06-20 | 日本電気株式会社 | 多重化デジタル反響阻止装置 |
| JPS54179843U (enrdf_load_stackoverflow) * | 1978-06-05 | 1979-12-19 | ||
| JPS5554901A (en) * | 1978-10-20 | 1980-04-22 | Hidetoshi Tanaka | Production of shoe insole |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3499999A (en) * | 1966-10-31 | 1970-03-10 | Bell Telephone Labor Inc | Closed loop adaptive echo canceller using generalized filter networks |
| US3562448A (en) * | 1968-06-21 | 1971-02-09 | Bell Telephone Labor Inc | Common control digital echo suppression |
| US3632905A (en) * | 1969-12-19 | 1972-01-04 | Bell Telephone Labor Inc | Method for improving the settling time of a transversal filter adaptive echo canceller |
-
1973
- 1973-08-20 JP JP9237173A patent/JPS5317451B2/ja not_active Expired
-
1974
- 1974-08-19 DE DE19742439655 patent/DE2439655A1/de not_active Ceased
- 1974-08-19 FR FR7428429A patent/FR2246131A1/fr active Granted
- 1974-08-19 CA CA207,291A patent/CA1056522A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5317451B2 (enrdf_load_stackoverflow) | 1978-06-08 |
| DE2439655A1 (de) | 1975-03-27 |
| FR2246131B1 (enrdf_load_stackoverflow) | 1980-03-21 |
| FR2246131A1 (en) | 1975-04-25 |
| JPS5042717A (enrdf_load_stackoverflow) | 1975-04-18 |
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