JP2007503795A5 - - Google Patents
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- Publication number
- JP2007503795A5 JP2007503795A5 JP2006533230A JP2006533230A JP2007503795A5 JP 2007503795 A5 JP2007503795 A5 JP 2007503795A5 JP 2006533230 A JP2006533230 A JP 2006533230A JP 2006533230 A JP2006533230 A JP 2006533230A JP 2007503795 A5 JP2007503795 A5 JP 2007503795A5
- Authority
- JP
- Japan
- Prior art keywords
- time delay
- echo canceller
- delay estimation
- sequence
- 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
- 230000003044 adaptive effect Effects 0.000 claims 11
- 108010076504 Protein Sorting Signals Proteins 0.000 claims 10
- 238000009499 grossing Methods 0.000 claims 4
- 238000000034 method Methods 0.000 claims 2
- 230000002123 temporal effect Effects 0.000 claims 2
- 230000003247 decreasing effect Effects 0.000 claims 1
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US10/444,265 US7107303B2 (en) | 2002-05-23 | 2003-05-23 | Sparse echo canceller |
| PCT/US2004/015766 WO2004114541A2 (en) | 2003-05-23 | 2004-05-20 | Sparse echo canceller |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JP2007503795A JP2007503795A (ja) | 2007-02-22 |
| JP2007503795A5 true JP2007503795A5 (enExample) | 2009-04-09 |
| JP4538460B2 JP4538460B2 (ja) | 2010-09-08 |
Family
ID=33538941
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2006533230A Expired - Fee Related JP4538460B2 (ja) | 2003-05-23 | 2004-05-20 | エコーキャンセラおよびスパースエコーキャンセラ |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US7107303B2 (enExample) |
| EP (1) | EP1636914B1 (enExample) |
| JP (1) | JP4538460B2 (enExample) |
| CN (1) | CN1813418B (enExample) |
| WO (1) | WO2004114541A2 (enExample) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7069286B2 (en) * | 2002-09-27 | 2006-06-27 | Lucent Technologies Inc. | Solution space principle component-based adaptive filter and method of operation thereof |
| US20070189505A1 (en) * | 2006-01-31 | 2007-08-16 | Freescale Semiconductor, Inc. | Detecting reflections in a communication channel |
| US7779692B2 (en) * | 2006-05-17 | 2010-08-24 | The Board Of Regents Of The University Of Texas System | Method for estimating strain, strain ratios and displacements in a target body |
| JP4743085B2 (ja) * | 2006-11-08 | 2011-08-10 | 沖電気工業株式会社 | エコーキャンセラ |
| KR100995990B1 (ko) * | 2007-12-07 | 2010-11-22 | 삼성전자주식회사 | 통신 시스템의 신호 송수신 장치에서 반향 신호 제거 장치 및 방법 |
| TW201010311A (en) * | 2008-08-20 | 2010-03-01 | Ic Plus Corp | Echo canceller and echo cancellation method |
| US8452002B2 (en) * | 2009-09-18 | 2013-05-28 | At&T Intellectual Property I, L.P. | Methods, apparatus and articles of manufacture to cancel echo for communication paths having long bulk delays |
| RU2011107596A (ru) * | 2011-02-17 | 2012-08-27 | Общество с ограниченной ответственностью "Айффорт Интернешнл" (RU) | Способ лечения аллергических заболеваний |
| CN107026650B (zh) * | 2016-01-29 | 2020-10-09 | 华为技术有限公司 | 一种模拟低通滤波器、模拟信息转换器以及滤波方法 |
| US10594530B2 (en) * | 2018-05-29 | 2020-03-17 | Qualcomm Incorporated | Techniques for successive peak reduction crest factor reduction |
Family Cites Families (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0221221B1 (en) * | 1985-10-30 | 1991-12-27 | International Business Machines Corporation | A process for determining an echo path flat delay and echo canceler using said process |
| US4789994A (en) * | 1987-08-12 | 1988-12-06 | American Telephone And Telegraph Company, At&T Bell Laboratories | Adaptive equalizer using precursor error signal for convergence control |
| DE69125806T2 (de) * | 1990-12-27 | 1997-09-25 | Nippon Electric Co | Adaptiver Filter geeignet zur schnellen Identifikation eines unbekannten Systems |
| JPH0514244A (ja) * | 1991-07-05 | 1993-01-22 | Fujitsu Ltd | エコーキヤンセラ装置 |
| JPH05152999A (ja) * | 1991-11-29 | 1993-06-18 | Nec Corp | エコー消去装置 |
| CA2060667C (en) * | 1992-02-05 | 1998-12-08 | Paul Marc Yatrou | Adaptive sparse echo canceller using a sub-rate filter for active tap selection |
| US5402496A (en) * | 1992-07-13 | 1995-03-28 | Minnesota Mining And Manufacturing Company | Auditory prosthesis, noise suppression apparatus and feedback suppression apparatus having focused adaptive filtering |
| US5539774A (en) * | 1994-06-15 | 1996-07-23 | International Business Machines Corporation | Dual decision equalization method and device |
| US5572262A (en) * | 1994-12-29 | 1996-11-05 | Philips Electronics North America Corporation | Receiver based methods and devices for combating co-channel NTSC interference in digital transmission |
| US5610909A (en) * | 1995-05-31 | 1997-03-11 | Lucent Technologies Inc. | Multistage echo canceler including time variation compensation |
| US6044068A (en) * | 1996-10-01 | 2000-03-28 | Telefonaktiebolaget Lm Ericsson | Silence-improved echo canceller |
| JP3241328B2 (ja) * | 1998-09-30 | 2001-12-25 | 沖電気工業株式会社 | エコーキャンセラ |
| JP2000183962A (ja) * | 1998-12-14 | 2000-06-30 | Fujitsu Ltd | 音声会話装置及び方法 |
| US6909782B2 (en) * | 2000-09-08 | 2005-06-21 | Intel Corporation | Fast converging affine projection based echo canceller for sparse multi-path channels |
| US7388954B2 (en) * | 2002-06-24 | 2008-06-17 | Freescale Semiconductor, Inc. | Method and apparatus for tone indication |
-
2003
- 2003-05-23 US US10/444,265 patent/US7107303B2/en not_active Expired - Fee Related
-
2004
- 2004-05-20 CN CN2004800183187A patent/CN1813418B/zh not_active Expired - Fee Related
- 2004-05-20 WO PCT/US2004/015766 patent/WO2004114541A2/en not_active Ceased
- 2004-05-20 JP JP2006533230A patent/JP4538460B2/ja not_active Expired - Fee Related
- 2004-05-20 EP EP04776052A patent/EP1636914B1/en not_active Expired - Lifetime
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