NO327377B1 - Fremgangsmate og system for klokkedriftskompensering - Google Patents
Fremgangsmate og system for klokkedriftskompensering Download PDFInfo
- Publication number
- NO327377B1 NO327377B1 NO20076533A NO20076533A NO327377B1 NO 327377 B1 NO327377 B1 NO 327377B1 NO 20076533 A NO20076533 A NO 20076533A NO 20076533 A NO20076533 A NO 20076533A NO 327377 B1 NO327377 B1 NO 327377B1
- Authority
- NO
- Norway
- Prior art keywords
- acquisition
- clock
- playback
- sample
- time domain
- Prior art date
Links
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- 238000005303 weighing Methods 0.000 claims 1
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Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M9/00—Arrangements for interconnection not involving centralised switching
- H04M9/08—Two-way loud-speaking telephone systems with means for conditioning the signal, e.g. for suppressing echoes for one or both directions of traffic
- H04M9/082—Two-way loud-speaking telephone systems with means for conditioning the signal, e.g. for suppressing echoes for one or both directions of traffic using echo cancellers
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
- Synchronisation In Digital Transmission Systems (AREA)
- Analogue/Digital Conversion (AREA)
- Telephone Function (AREA)
- Communication Control (AREA)
Priority Applications (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NO20076533A NO327377B1 (no) | 2007-12-18 | 2007-12-18 | Fremgangsmate og system for klokkedriftskompensering |
| CN2008801142731A CN101843082B (zh) | 2007-12-18 | 2008-12-16 | 用于时钟漂移补偿的方法和系统 |
| PCT/NO2008/000453 WO2009078733A1 (fr) | 2007-12-18 | 2008-12-16 | Procédé et système de compensation de dérive d'horloge |
| JP2010539341A JP5357179B2 (ja) | 2007-12-18 | 2008-12-16 | クロックドリフト補償の方法とシステム |
| EP08862488.7A EP2235928B1 (fr) | 2007-12-18 | 2008-12-16 | Procédé et système de compensation de dérive d'horloge |
| US12/338,719 US8515086B2 (en) | 2007-12-18 | 2008-12-18 | Method and system for clock drift compensation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NO20076533A NO327377B1 (no) | 2007-12-18 | 2007-12-18 | Fremgangsmate og system for klokkedriftskompensering |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| NO20076533L NO20076533L (no) | 2009-06-19 |
| NO327377B1 true NO327377B1 (no) | 2009-06-22 |
Family
ID=40795720
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NO20076533A NO327377B1 (no) | 2007-12-18 | 2007-12-18 | Fremgangsmate og system for klokkedriftskompensering |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US8515086B2 (fr) |
| EP (1) | EP2235928B1 (fr) |
| JP (1) | JP5357179B2 (fr) |
| CN (1) | CN101843082B (fr) |
| NO (1) | NO327377B1 (fr) |
| WO (1) | WO2009078733A1 (fr) |
Families Citing this family (23)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20110234200A1 (en) * | 2010-03-24 | 2011-09-29 | Kishan Shenoi | Adaptive slip double buffer |
| US8738956B2 (en) * | 2011-04-28 | 2014-05-27 | Futurewei Technologies, Inc. | Method and apparatus for updating a fractional time interval using time-domain interpolators in optical communications |
| WO2012158168A1 (fr) * | 2011-05-18 | 2012-11-22 | Google Inc. | Procédé et système de compensation d'une dérive d'horloge |
| US9203633B2 (en) | 2011-10-27 | 2015-12-01 | Polycom, Inc. | Mobile group conferencing with portable devices |
| US8896651B2 (en) | 2011-10-27 | 2014-11-25 | Polycom, Inc. | Portable devices as videoconferencing peripherals |
| US9024998B2 (en) | 2011-10-27 | 2015-05-05 | Pollycom, Inc. | Pairing devices in conference using ultrasonic beacon |
| US9491404B2 (en) | 2011-10-27 | 2016-11-08 | Polycom, Inc. | Compensating for different audio clocks between devices using ultrasonic beacon |
| CN102568494B (zh) * | 2012-02-23 | 2014-02-05 | 贵阳朗玛信息技术股份有限公司 | 消除回声的优化方法、装置及系统 |
| CN102780821B (zh) * | 2012-07-06 | 2014-08-13 | 歌尔声学股份有限公司 | 一种送受话端采样率偏差纠正方法和系统 |
| US9025762B2 (en) * | 2012-10-23 | 2015-05-05 | Cisco Technology, Inc. | System and method for clock synchronization of acoustic echo canceller (AEC) with different sampling clocks for speakers and microphones |
| US8880929B2 (en) * | 2012-11-19 | 2014-11-04 | Blackfire Research Corporation | Indirect clock measuring and media adjustment |
| JP6038635B2 (ja) * | 2012-12-21 | 2016-12-07 | 株式会社東芝 | 信号処理装置および信号処理方法 |
| US9219456B1 (en) * | 2013-12-17 | 2015-12-22 | Amazon Technologies, Inc. | Correcting clock drift via embedded sin waves |
| US10147441B1 (en) | 2013-12-19 | 2018-12-04 | Amazon Technologies, Inc. | Voice controlled system |
| US9100090B2 (en) | 2013-12-20 | 2015-08-04 | Csr Technology Inc. | Acoustic echo cancellation (AEC) for a close-coupled speaker and microphone system |
| US9373318B1 (en) * | 2014-03-27 | 2016-06-21 | Amazon Technologies, Inc. | Signal rate synchronization for remote acoustic echo cancellation |
| US9589575B1 (en) * | 2015-12-02 | 2017-03-07 | Amazon Technologies, Inc. | Asynchronous clock frequency domain acoustic echo canceller |
| CN105553598B (zh) * | 2016-01-10 | 2017-09-29 | 北京航空航天大学 | 一种基于m估计稳健回归的时间触发以太网时钟补偿方法 |
| US10592442B2 (en) * | 2017-12-11 | 2020-03-17 | Advanced Micro Devices, Inc. | Asynchronous buffer with pointer offsets |
| CN108281149B (zh) * | 2017-12-29 | 2021-08-27 | 芯原微电子(北京)有限公司 | 一种基于加Blackman窗的FIR滤波器的音频采样率转换方法及系统 |
| US10692515B2 (en) * | 2018-04-17 | 2020-06-23 | Fortemedia, Inc. | Devices for acoustic echo cancellation and methods thereof |
| US10887038B2 (en) * | 2018-09-28 | 2021-01-05 | Samsung Electronics Co., Ltd. | GNSS-based multi-modal clock correction |
| WO2021013363A1 (fr) * | 2019-07-25 | 2021-01-28 | Unify Patente Gmbh & Co. Kg | Procédé et système pour éviter un effet larsen lors de conférences |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2802367B1 (fr) * | 1999-12-14 | 2006-08-18 | France Telecom | Procede temps reel de traitement et de gestion pour l'annulation d'echo entre haut-parleur et microphone d'un terminal informatique |
| US6754295B1 (en) * | 2000-04-07 | 2004-06-22 | Comrex Corporation | Method and apparatus for synchronizing data transmission and reception over a network |
| US7277554B2 (en) * | 2001-08-08 | 2007-10-02 | Gn Resound North America Corporation | Dynamic range compression using digital frequency warping |
| US6747581B2 (en) * | 2002-02-01 | 2004-06-08 | Octiv, Inc. | Techniques for variable sample rate conversion |
| US7120259B1 (en) * | 2002-05-31 | 2006-10-10 | Microsoft Corporation | Adaptive estimation and compensation of clock drift in acoustic echo cancellers |
| CN100454284C (zh) * | 2002-12-24 | 2009-01-21 | 联想(北京)有限公司 | 实现远程实时播放接收声音的方法及系统 |
| FR2867288B1 (fr) * | 2004-03-03 | 2006-06-02 | Centre Nat Rech Scient | Procede de synchronisation de donnees, notamment distribuees prenant en compte les imprecisions et derives des horloges |
| NO328256B1 (no) | 2004-12-29 | 2010-01-18 | Tandberg Telecom As | Audiosystem |
| EP1853087B1 (fr) | 2005-02-21 | 2014-07-30 | Fujitsu Ltd. | Annulation d´echo |
| US20070019802A1 (en) * | 2005-06-30 | 2007-01-25 | Symbol Technologies, Inc. | Audio data stream synchronization |
| US20070165837A1 (en) * | 2005-12-30 | 2007-07-19 | Microsoft Corporation | Synchronizing Input Streams for Acoustic Echo Cancellation |
| US8295475B2 (en) * | 2006-01-13 | 2012-10-23 | Microsoft Corporation | Selective glitch detection, clock drift compensation, and anti-clipping in audio echo cancellation |
-
2007
- 2007-12-18 NO NO20076533A patent/NO327377B1/no not_active IP Right Cessation
-
2008
- 2008-12-16 EP EP08862488.7A patent/EP2235928B1/fr not_active Not-in-force
- 2008-12-16 CN CN2008801142731A patent/CN101843082B/zh not_active Expired - Fee Related
- 2008-12-16 JP JP2010539341A patent/JP5357179B2/ja not_active Expired - Fee Related
- 2008-12-16 WO PCT/NO2008/000453 patent/WO2009078733A1/fr active Application Filing
- 2008-12-18 US US12/338,719 patent/US8515086B2/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| EP2235928B1 (fr) | 2013-07-31 |
| NO20076533L (no) | 2009-06-19 |
| WO2009078733A1 (fr) | 2009-06-25 |
| US8515086B2 (en) | 2013-08-20 |
| JP2011512698A (ja) | 2011-04-21 |
| CN101843082B (zh) | 2013-09-04 |
| EP2235928A1 (fr) | 2010-10-06 |
| CN101843082A (zh) | 2010-09-22 |
| JP5357179B2 (ja) | 2013-12-04 |
| US20090185695A1 (en) | 2009-07-23 |
| EP2235928A4 (fr) | 2011-05-04 |
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| MM1K | Lapsed by not paying the annual fees |