JPS6251528B2 - - Google Patents
Info
- Publication number
- JPS6251528B2 JPS6251528B2 JP55037085A JP3708580A JPS6251528B2 JP S6251528 B2 JPS6251528 B2 JP S6251528B2 JP 55037085 A JP55037085 A JP 55037085A JP 3708580 A JP3708580 A JP 3708580A JP S6251528 B2 JPS6251528 B2 JP S6251528B2
- Authority
- JP
- Japan
- Prior art keywords
- terminal
- memory
- circuit
- signal
- output
- 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
- 230000003044 adaptive effect Effects 0.000 claims description 32
- 230000004048 modification Effects 0.000 claims description 5
- 238000012986 modification Methods 0.000 claims description 5
- 230000006870 function Effects 0.000 claims description 3
- 238000004364 calculation method Methods 0.000 description 20
- 238000005070 sampling Methods 0.000 description 10
- 238000012937 correction Methods 0.000 description 9
- 230000004044 response Effects 0.000 description 7
- 238000010586 diagram Methods 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008901 benefit Effects 0.000 description 1
- 230000007175 bidirectional communication Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000002592 echocardiography Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000002265 prevention Effects 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
- 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)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3708580A JPS56132827A (en) | 1980-03-24 | 1980-03-24 | Echo canceler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3708580A JPS56132827A (en) | 1980-03-24 | 1980-03-24 | Echo canceler |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS56132827A JPS56132827A (en) | 1981-10-17 |
| JPS6251528B2 true JPS6251528B2 (enrdf_load_stackoverflow) | 1987-10-30 |
Family
ID=12487707
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3708580A Granted JPS56132827A (en) | 1980-03-24 | 1980-03-24 | Echo canceler |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS56132827A (enrdf_load_stackoverflow) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5864830A (ja) * | 1981-10-15 | 1983-04-18 | Nippon Telegr & Teleph Corp <Ntt> | 反響消去装置単位回路およびそれを用いた反響消去装置 |
| JPS58150336A (ja) * | 1982-03-02 | 1983-09-07 | Nec Corp | エコ−キヤンセラ |
| JPH0638588B2 (ja) * | 1983-10-03 | 1994-05-18 | 日本電気株式会社 | 反響消去装置 |
-
1980
- 1980-03-24 JP JP3708580A patent/JPS56132827A/ja active Granted
Non-Patent Citations (1)
| Title |
|---|
| CONFERENCE RECORD 1976 INTERNATIONAL CONFERENCE ON COMMUNICATIONS=1976 * |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS56132827A (en) | 1981-10-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR100233077B1 (ko) | 반향소거장치 | |
| KR100559752B1 (ko) | 에코제거기시스템및에코제거기시스템의동작방법 | |
| JP2503747B2 (ja) | Ｆｉｒ形エコ―キャンセラ | |
| US6404886B1 (en) | Method and apparatus for echo cancelling with multiple microphones | |
| US8073132B2 (en) | Echo canceler and echo canceling program | |
| US6532289B1 (en) | Method and device for echo suppression | |
| JP2006191650A (ja) | エコー打消装置においてエコーの位置を決定する方法 | |
| US5247512A (en) | Echo canceller | |
| JPS62107533A (ja) | 伝送回路網 | |
| JP3139405B2 (ja) | エコーキャンセラ | |
| US20070092074A1 (en) | Echo canceller | |
| EP1962436B9 (en) | Electricity echo elimination device and method | |
| SE511073C2 (sv) | Sätt och anordning för ekoestimering och undertryckning i telefonsystem | |
| JPH1041860A (ja) | エコーキャンセラ | |
| JP3385221B2 (ja) | エコーキャンセラ | |
| US6865270B1 (en) | Echo cancellation method and apparatus | |
| US5875246A (en) | Distributed audio signal processing in a network experiencing transmission delay | |
| EP0731593B1 (en) | Echo removing apparatus | |
| JPS6251528B2 (enrdf_load_stackoverflow) | ||
| JPH0459812B2 (enrdf_load_stackoverflow) | ||
| JP2001148644A (ja) | エコーキャンセラ | |
| JP3452341B2 (ja) | エコーキャンセラ | |
| JPH07303067A (ja) | エコーキャンセラ | |
| JP2650208B2 (ja) | エコーキャンセラ | |
| JPH11331047A (ja) | 圧伸器を有する多重チャネルエコ―消去装置 |