JPS60174536A - エコ−キヤンセラ - Google Patents
エコ−キヤンセラInfo
- Publication number
- JPS60174536A JPS60174536A JP2961284A JP2961284A JPS60174536A JP S60174536 A JPS60174536 A JP S60174536A JP 2961284 A JP2961284 A JP 2961284A JP 2961284 A JP2961284 A JP 2961284A JP S60174536 A JPS60174536 A JP S60174536A
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- register
- signal
- loop gain
- echo
- 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.)
- Granted
Links
- 238000012937 correction Methods 0.000 claims abstract description 22
- 238000012935 Averaging Methods 0.000 claims abstract description 11
- 230000005540 biological transmission Effects 0.000 claims abstract description 7
- 230000004044 response Effects 0.000 claims description 4
- 230000007423 decrease Effects 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 13
- 230000006870 function Effects 0.000 description 11
- 238000010586 diagram Methods 0.000 description 8
- 230000003044 adaptive effect Effects 0.000 description 4
- 239000013598 vector Substances 0.000 description 4
- 238000012546 transfer Methods 0.000 description 3
- 230000006866 deterioration Effects 0.000 description 2
- 238000002592 echocardiography Methods 0.000 description 2
- 238000013139 quantization Methods 0.000 description 2
- 238000004364 calculation method Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000005094 computer simulation Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000002542 deteriorative effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000001052 transient effect Effects 0.000 description 1
- 230000002747 voluntary effect 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 |
---|---|---|---|
JP2961284A JPS60174536A (ja) | 1984-02-21 | 1984-02-21 | エコ−キヤンセラ |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2961284A JPS60174536A (ja) | 1984-02-21 | 1984-02-21 | エコ−キヤンセラ |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS60174536A true JPS60174536A (ja) | 1985-09-07 |
JPH0262975B2 JPH0262975B2 (enrdf_load_stackoverflow) | 1990-12-27 |
Family
ID=12280889
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2961284A Granted JPS60174536A (ja) | 1984-02-21 | 1984-02-21 | エコ−キヤンセラ |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS60174536A (enrdf_load_stackoverflow) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS63234732A (ja) * | 1987-03-24 | 1988-09-30 | Matsushita Electric Ind Co Ltd | 音響エコ−キヤンセラ |
-
1984
- 1984-02-21 JP JP2961284A patent/JPS60174536A/ja active Granted
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS63234732A (ja) * | 1987-03-24 | 1988-09-30 | Matsushita Electric Ind Co Ltd | 音響エコ−キヤンセラ |
Also Published As
Publication number | Publication date |
---|---|
JPH0262975B2 (enrdf_load_stackoverflow) | 1990-12-27 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US3499999A (en) | Closed loop adaptive echo canceller using generalized filter networks | |
US7684559B2 (en) | Acoustic echo suppressor for hands-free speech communication | |
US4087654A (en) | Echo canceller for two-wire full duplex data transmission | |
US3647992A (en) | Adaptive echo canceller for nonlinear systems | |
US5289539A (en) | Echo canceller using impulse response estimating method | |
JP2794999B2 (ja) | エコーキャンセル方式 | |
US4587382A (en) | Echo canceller using end delay measurement | |
US8300802B2 (en) | Adaptive filter for use in echo reduction | |
JPH06318885A (ja) | 帯域分割適応フィルタによる未知システム同定の方法及び装置 | |
JPS5842662B2 (ja) | エコ−除去装置 | |
JPS6138656B2 (enrdf_load_stackoverflow) | ||
CN110572525B (zh) | 一种用于语音通信的自适应通信回声消除方法 | |
US6526141B2 (en) | Method and apparatus for network echo cancellation using a proportionate normalized least mean squares algorithm | |
AU1425100A (en) | Arrangement and method for interference cancelling | |
GB2122852A (en) | Improvements in or relating to adaptive filters | |
US9923592B2 (en) | Echo cancellation using minimal complexity in a device | |
JPS60174536A (ja) | エコ−キヤンセラ | |
JPH01151830A (ja) | エコー相殺方法および加入者ラインオーディオ処理回路 | |
Dushin et al. | Efficient echo cancellation in single carrier duplex satellite systems | |
US4868775A (en) | Adaptive digital filter | |
CN1607740B (zh) | 不稳定信号的改进型仿射投影算法 | |
JPH09181653A (ja) | 音響エコーキャンセラ | |
Gupta et al. | Review paper on linear and nonlinear acoustic echo cancellation | |
JPH0459812B2 (enrdf_load_stackoverflow) | ||
JPS6113416B2 (enrdf_load_stackoverflow) |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
EXPY | Cancellation because of completion of term |