JPH0439248B2 - - Google Patents
Info
- Publication number
- JPH0439248B2 JPH0439248B2 JP27095385A JP27095385A JPH0439248B2 JP H0439248 B2 JPH0439248 B2 JP H0439248B2 JP 27095385 A JP27095385 A JP 27095385A JP 27095385 A JP27095385 A JP 27095385A JP H0439248 B2 JPH0439248 B2 JP H0439248B2
- Authority
- JP
- Japan
- Prior art keywords
- echo
- signal level
- input signal
- canceller
- echo cancellation
- 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
- 230000000694 effects Effects 0.000 claims description 107
- 238000001514 detection method Methods 0.000 claims description 37
- 230000005540 biological transmission Effects 0.000 claims description 24
- 238000004364 calculation method Methods 0.000 claims description 21
- 238000002592 echocardiography Methods 0.000 claims description 4
- 239000000284 extract Substances 0.000 claims description 4
- 238000010586 diagram Methods 0.000 description 8
- NCGICGYLBXGBGN-UHFFFAOYSA-N 3-morpholin-4-yl-1-oxa-3-azonia-2-azanidacyclopent-3-en-5-imine;hydrochloride Chemical compound Cl.[N-]1OC(=N)C=[N+]1N1CCOCC1 NCGICGYLBXGBGN-UHFFFAOYSA-N 0.000 description 7
- 101150016367 RIN1 gene Proteins 0.000 description 7
- 230000006854 communication Effects 0.000 description 7
- 238000004891 communication Methods 0.000 description 7
- 230000007423 decrease Effects 0.000 description 4
- 230000005236 sound signal Effects 0.000 description 4
- 230000007175 bidirectional communication Effects 0.000 description 2
- 230000006866 deterioration Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000003044 adaptive effect Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000001934 delay Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
Landscapes
- Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60270953A JPS62130029A (ja) | 1985-12-02 | 1985-12-02 | 反響消去装置 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60270953A JPS62130029A (ja) | 1985-12-02 | 1985-12-02 | 反響消去装置 |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3098809A Division JPH04227341A (ja) | 1991-04-30 | 1991-04-30 | 反響消去装置 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62130029A JPS62130029A (ja) | 1987-06-12 |
| JPH0439248B2 true JPH0439248B2 (de) | 1992-06-29 |
Family
ID=17493317
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP60270953A Granted JPS62130029A (ja) | 1985-12-02 | 1985-12-02 | 反響消去装置 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62130029A (de) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013005106A (ja) * | 2011-06-14 | 2013-01-07 | Nippon Telegr & Teleph Corp <Ntt> | 場内拡声装置、場内拡声方法、及びそのプログラム |
| JP5897343B2 (ja) | 2012-02-17 | 2016-03-30 | 株式会社日立製作所 | 残響除去パラメータ推定装置及び方法、残響・エコー除去パラメータ推定装置、残響除去装置、残響・エコー除去装置、並びに、残響除去装置オンライン会議システム |
-
1985
- 1985-12-02 JP JP60270953A patent/JPS62130029A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS62130029A (ja) | 1987-06-12 |
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