ATE348385T1 - Spektralmerkmal ersatz für die verschleierung von rahmenfehlern in einem sprachdekoder - Google Patents
Spektralmerkmal ersatz für die verschleierung von rahmenfehlern in einem sprachdekoderInfo
- Publication number
- ATE348385T1 ATE348385T1 AT01978706T AT01978706T ATE348385T1 AT E348385 T1 ATE348385 T1 AT E348385T1 AT 01978706 T AT01978706 T AT 01978706T AT 01978706 T AT01978706 T AT 01978706T AT E348385 T1 ATE348385 T1 AT E348385T1
- Authority
- AT
- Austria
- Prior art keywords
- frame
- bad
- frames
- frame error
- spectral feature
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
- G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
- G10L19/005—Correction of errors induced by the transmission channel, if related to the coding algorithm
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
- G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
- G10L19/04—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis using predictive techniques
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
- G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
- G10L19/04—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis using predictive techniques
- G10L19/06—Determination or coding of the spectral characteristics, e.g. of the short-term prediction coefficients
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
- G10L25/00—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00
- G10L25/93—Discriminating between voiced and unvoiced parts of speech signals
Landscapes
- Engineering & Computer Science (AREA)
- Computational Linguistics (AREA)
- Signal Processing (AREA)
- Health & Medical Sciences (AREA)
- Audiology, Speech & Language Pathology (AREA)
- Human Computer Interaction (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
- Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
- Detection And Prevention Of Errors In Transmission (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US24249800P | 2000-10-23 | 2000-10-23 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ATE348385T1 true ATE348385T1 (de) | 2007-01-15 |
Family
ID=22915004
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AT01978706T ATE348385T1 (de) | 2000-10-23 | 2001-10-17 | Spektralmerkmal ersatz für die verschleierung von rahmenfehlern in einem sprachdekoder |
Country Status (14)
| Country | Link |
|---|---|
| US (2) | US7031926B2 (de) |
| EP (1) | EP1332493B1 (de) |
| JP (2) | JP2004522178A (de) |
| KR (1) | KR100581413B1 (de) |
| CN (1) | CN1291374C (de) |
| AT (1) | ATE348385T1 (de) |
| AU (1) | AU1079902A (de) |
| BR (2) | BRPI0114827B1 (de) |
| CA (1) | CA2425034A1 (de) |
| DE (1) | DE60125219T2 (de) |
| ES (1) | ES2276839T3 (de) |
| PT (1) | PT1332493E (de) |
| WO (1) | WO2002035520A2 (de) |
| ZA (1) | ZA200302778B (de) |
Families Citing this family (76)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6810377B1 (en) * | 1998-06-19 | 2004-10-26 | Comsat Corporation | Lost frame recovery techniques for parametric, LPC-based speech coding systems |
| US6609118B1 (en) * | 1999-06-21 | 2003-08-19 | General Electric Company | Methods and systems for automated property valuation |
| US6968309B1 (en) * | 2000-10-31 | 2005-11-22 | Nokia Mobile Phones Ltd. | Method and system for speech frame error concealment in speech decoding |
| CA2388439A1 (en) * | 2002-05-31 | 2003-11-30 | Voiceage Corporation | A method and device for efficient frame erasure concealment in linear predictive based speech codecs |
| JP2004151123A (ja) * | 2002-10-23 | 2004-05-27 | Nec Corp | 符号変換方法、符号変換装置、プログラム及びその記憶媒体 |
| US20040143675A1 (en) * | 2003-01-16 | 2004-07-22 | Aust Andreas Matthias | Resynchronizing drifted data streams with a minimum of noticeable artifacts |
| US7835916B2 (en) * | 2003-12-19 | 2010-11-16 | Telefonaktiebolaget Lm Ericsson (Publ) | Channel signal concealment in multi-channel audio systems |
| FI119533B (fi) * | 2004-04-15 | 2008-12-15 | Nokia Corp | Audiosignaalien koodaus |
| JPWO2005106848A1 (ja) * | 2004-04-30 | 2007-12-13 | 松下電器産業株式会社 | スケーラブル復号化装置および拡張レイヤ消失隠蔽方法 |
| EP1603262B1 (de) * | 2004-05-28 | 2007-01-17 | Alcatel | Anpassungsverfahren für ein Mehrraten-Sprach-Codec |
| US7971121B1 (en) * | 2004-06-18 | 2011-06-28 | Verizon Laboratories Inc. | Systems and methods for providing distributed packet loss concealment in packet switching communications networks |
| EP1788556B1 (de) * | 2004-09-06 | 2014-06-04 | Panasonic Corporation | Skalierbare dekodierungsvorrichtung und verfahren zur signalverlustmaskierung |
| US7409338B1 (en) * | 2004-11-10 | 2008-08-05 | Mediatek Incorporation | Softbit speech decoder and related method for performing speech loss concealment |
| US7596143B2 (en) * | 2004-12-16 | 2009-09-29 | Alcatel-Lucent Usa Inc. | Method and apparatus for handling potentially corrupt frames |
| KR101203348B1 (ko) * | 2005-01-31 | 2012-11-20 | 스카이프 | 가중 오버랩 애드 방법 |
| KR100612889B1 (ko) * | 2005-02-05 | 2006-08-14 | 삼성전자주식회사 | 선스펙트럼 쌍 파라미터 복원 방법 및 장치와 그 음성복호화 장치 |
| GB0512397D0 (en) * | 2005-06-17 | 2005-07-27 | Univ Cambridge Tech | Restoring corrupted audio signals |
| KR100723409B1 (ko) * | 2005-07-27 | 2007-05-30 | 삼성전자주식회사 | 프레임 소거 은닉장치 및 방법, 및 이를 이용한 음성복호화 방법 및 장치 |
| CN101273403B (zh) * | 2005-10-14 | 2012-01-18 | 松下电器产业株式会社 | 可扩展编码装置、可扩展解码装置以及其方法 |
| CN101336450B (zh) * | 2006-02-06 | 2012-03-14 | 艾利森电话股份有限公司 | 在无线通信系统中用于语音编码的方法和装置 |
| US7457746B2 (en) * | 2006-03-20 | 2008-11-25 | Mindspeed Technologies, Inc. | Pitch prediction for packet loss concealment |
| US8280728B2 (en) * | 2006-08-11 | 2012-10-02 | Broadcom Corporation | Packet loss concealment for a sub-band predictive coder based on extrapolation of excitation waveform |
| US20080046233A1 (en) | 2006-08-15 | 2008-02-21 | Broadcom Corporation | Packet Loss Concealment for Sub-band Predictive Coding Based on Extrapolation of Full-band Audio Waveform |
| SG165383A1 (en) | 2006-11-10 | 2010-10-28 | Panasonic Corp | Parameter decoding device, parameter encoding device, and parameter decoding method |
| RU2431892C2 (ru) * | 2006-11-10 | 2011-10-20 | Панасоник Корпорэйшн | Устройство декодирования параметров, устройство кодирования параметров и способ декодирования параметров |
| KR101292771B1 (ko) * | 2006-11-24 | 2013-08-16 | 삼성전자주식회사 | 오디오 신호의 오류은폐방법 및 장치 |
| KR100862662B1 (ko) * | 2006-11-28 | 2008-10-10 | 삼성전자주식회사 | 프레임 오류 은닉 방법 및 장치, 이를 이용한 오디오 신호복호화 방법 및 장치 |
| KR101291193B1 (ko) | 2006-11-30 | 2013-07-31 | 삼성전자주식회사 | 프레임 오류은닉방법 |
| CN100578618C (zh) * | 2006-12-04 | 2010-01-06 | 华为技术有限公司 | 一种解码方法及装置 |
| CN101226744B (zh) | 2007-01-19 | 2011-04-13 | 华为技术有限公司 | 语音解码器中实现语音解码的方法及装置 |
| KR20080075050A (ko) * | 2007-02-10 | 2008-08-14 | 삼성전자주식회사 | 오류 프레임의 파라미터 갱신 방법 및 장치 |
| WO2008108080A1 (ja) * | 2007-03-02 | 2008-09-12 | Panasonic Corporation | 音声符号化装置及び音声復号装置 |
| US8165224B2 (en) * | 2007-03-22 | 2012-04-24 | Research In Motion Limited | Device and method for improved lost frame concealment |
| EP1973254B1 (de) * | 2007-03-22 | 2009-07-15 | Research In Motion Limited | Vorrichtung und Verfahren zur verbesserten Maskierung von Rahmenverlusten |
| JP5302190B2 (ja) * | 2007-05-24 | 2013-10-02 | パナソニック株式会社 | オーディオ復号装置、オーディオ復号方法、プログラム及び集積回路 |
| EP2189976B1 (de) * | 2008-11-21 | 2012-10-24 | Nuance Communications, Inc. | Verfahren zur Adaption eines Codierungsbuches für Spracherkennung |
| US8751229B2 (en) * | 2008-11-21 | 2014-06-10 | At&T Intellectual Property I, L.P. | System and method for handling missing speech data |
| ES2976382T3 (es) | 2008-12-15 | 2024-07-31 | Fraunhofer Ges Zur Foerderungder Angewandten Forschung E V | Decodificador de extensión de ancho de banda |
| CN101615395B (zh) | 2008-12-31 | 2011-01-12 | 华为技术有限公司 | 信号编码、解码方法及装置、系统 |
| JP2010164859A (ja) * | 2009-01-16 | 2010-07-29 | Sony Corp | オーディオ再生装置、情報再生システム、オーディオ再生方法、およびプログラム |
| US20100185441A1 (en) * | 2009-01-21 | 2010-07-22 | Cambridge Silicon Radio Limited | Error Concealment |
| US8676573B2 (en) * | 2009-03-30 | 2014-03-18 | Cambridge Silicon Radio Limited | Error concealment |
| US8316267B2 (en) * | 2009-05-01 | 2012-11-20 | Cambridge Silicon Radio Limited | Error concealment |
| CN101894565B (zh) * | 2009-05-19 | 2013-03-20 | 华为技术有限公司 | 语音信号修复方法和装置 |
| US8908882B2 (en) * | 2009-06-29 | 2014-12-09 | Audience, Inc. | Reparation of corrupted audio signals |
| KR101761629B1 (ko) * | 2009-11-24 | 2017-07-26 | 엘지전자 주식회사 | 오디오 신호 처리 방법 및 장치 |
| JP5724338B2 (ja) * | 2010-12-03 | 2015-05-27 | ソニー株式会社 | 符号化装置および符号化方法、復号装置および復号方法、並びにプログラム |
| BR122021000241B1 (pt) | 2011-04-21 | 2022-08-30 | Samsung Electronics Co., Ltd | Aparelho de quantização de coeficientes de codificação preditiva linear |
| CA2833874C (en) | 2011-04-21 | 2019-11-05 | Ho-Sang Sung | Method of quantizing linear predictive coding coefficients, sound encoding method, method of de-quantizing linear predictive coding coefficients, sound decoding method, and recording medium |
| JP6024191B2 (ja) * | 2011-05-30 | 2016-11-09 | ヤマハ株式会社 | 音声合成装置および音声合成方法 |
| CN107103910B (zh) * | 2011-10-21 | 2020-09-18 | 三星电子株式会社 | 帧错误隐藏方法和设备以及音频解码方法和设备 |
| KR20130113742A (ko) * | 2012-04-06 | 2013-10-16 | 현대모비스 주식회사 | 오디오 데이터 디코딩 방법 및 장치 |
| CN103714821A (zh) | 2012-09-28 | 2014-04-09 | 杜比实验室特许公司 | 基于位置的混合域数据包丢失隐藏 |
| CN103117062B (zh) * | 2013-01-22 | 2014-09-17 | 武汉大学 | 语音解码器中帧差错隐藏的谱参数代替方法及系统 |
| ES2603266T3 (es) * | 2013-02-13 | 2017-02-24 | Telefonaktiebolaget L M Ericsson (Publ) | Ocultación de errores de trama |
| PL2959481T3 (pl) | 2013-02-20 | 2017-10-31 | Fraunhofer Ges Forschung | Urządzenie i sposób generowania zakodowanego sygnału audio lub dekodowania zakodowanego sygnału audio przy użyciu części wielozakładkowej |
| US9842598B2 (en) * | 2013-02-21 | 2017-12-12 | Qualcomm Incorporated | Systems and methods for mitigating potential frame instability |
| SG11201510463WA (en) | 2013-06-21 | 2016-01-28 | Fraunhofer Ges Forschung | Apparatus and method for improved concealment of the adaptive codebook in acelp-like concealment employing improved pitch lag estimation |
| AU2014283198B2 (en) | 2013-06-21 | 2016-10-20 | Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. | Apparatus and method realizing a fading of an MDCT spectrum to white noise prior to FDNS application |
| KR102132326B1 (ko) * | 2013-07-30 | 2020-07-09 | 삼성전자 주식회사 | 통신 시스템에서 오류 은닉 방법 및 장치 |
| CN103456307B (zh) * | 2013-09-18 | 2015-10-21 | 武汉大学 | 音频解码器中帧差错隐藏的谱代替方法及系统 |
| JP5981408B2 (ja) | 2013-10-29 | 2016-08-31 | 株式会社Nttドコモ | 音声信号処理装置、音声信号処理方法、及び音声信号処理プログラム |
| CN104751849B (zh) * | 2013-12-31 | 2017-04-19 | 华为技术有限公司 | 语音频码流的解码方法及装置 |
| EP2980797A1 (de) | 2014-07-28 | 2016-02-03 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Audiodecodierer, Verfahren und Computerprogramm mit Zero-Input-Response zur Erzeugung eines sanften Übergangs |
| EP2922054A1 (de) | 2014-03-19 | 2015-09-23 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Vorrichtung, Verfahren und zugehöriges Computerprogramm zur Erzeugung eines Fehlerverschleierungssignals unter Verwendung einer adaptiven Rauschschätzung |
| EP2922055A1 (de) | 2014-03-19 | 2015-09-23 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Vorrichtung, Verfahren und zugehöriges Computerprogramm zur Erzeugung eines Fehlerverschleierungssignals mit einzelnen Ersatz-LPC-Repräsentationen für individuelle Codebuchinformationen |
| EP2922056A1 (de) | 2014-03-19 | 2015-09-23 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Vorrichtung, Verfahren und zugehöriges Computerprogramm zur Erzeugung eines Fehlerverschleierungssignals unter Verwendung von Leistungskompensation |
| CN104934035B (zh) | 2014-03-21 | 2017-09-26 | 华为技术有限公司 | 语音频码流的解码方法及装置 |
| EP4376304A3 (de) | 2014-03-31 | 2024-07-24 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Codierer, decodierer, codierungsverfahren, decodierungsverfahren und programm |
| EP2980793A1 (de) | 2014-07-28 | 2016-02-03 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Codierer, Decodierer, System und Verfahren zur Codierung und Decodierung |
| TWI602172B (zh) | 2014-08-27 | 2017-10-11 | 弗勞恩霍夫爾協會 | 使用參數以加強隱蔽之用於編碼及解碼音訊內容的編碼器、解碼器及方法 |
| CN108011686B (zh) * | 2016-10-31 | 2020-07-14 | 腾讯科技(深圳)有限公司 | 信息编码帧丢失恢复方法和装置 |
| US10803876B2 (en) * | 2018-12-21 | 2020-10-13 | Microsoft Technology Licensing, Llc | Combined forward and backward extrapolation of lost network data |
| US10784988B2 (en) | 2018-12-21 | 2020-09-22 | Microsoft Technology Licensing, Llc | Conditional forward error correction for network data |
| CN111554308B (zh) * | 2020-05-15 | 2024-10-15 | 腾讯科技(深圳)有限公司 | 一种语音处理方法、装置、设备及存储介质 |
| US12394405B2 (en) * | 2023-03-24 | 2025-08-19 | Verizon Patent And Licensing Inc. | Systems and methods for reconstructing video data using contextually-aware multi-modal generation during signal loss |
Family Cites Families (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5406532A (en) * | 1988-03-04 | 1995-04-11 | Asahi Kogaku Kogyo Kabushiki Kaisha | Optical system for a magneto-optical recording/reproducing apparatus |
| JP3104400B2 (ja) * | 1992-04-27 | 2000-10-30 | ソニー株式会社 | オーディオ信号符号化装置及び方法 |
| JP3085606B2 (ja) * | 1992-07-16 | 2000-09-11 | ヤマハ株式会社 | ディジタルデータの誤り補正方法 |
| JP2746033B2 (ja) * | 1992-12-24 | 1998-04-28 | 日本電気株式会社 | 音声復号化装置 |
| JP3123286B2 (ja) * | 1993-02-18 | 2001-01-09 | ソニー株式会社 | ディジタル信号処理装置又は方法、及び記録媒体 |
| SE501340C2 (sv) | 1993-06-11 | 1995-01-23 | Ericsson Telefon Ab L M | Döljande av transmissionsfel i en talavkodare |
| JP3404837B2 (ja) * | 1993-12-07 | 2003-05-12 | ソニー株式会社 | 多層符号化装置 |
| US5502713A (en) | 1993-12-07 | 1996-03-26 | Telefonaktiebolaget Lm Ericsson | Soft error concealment in a TDMA radio system |
| CA2142391C (en) | 1994-03-14 | 2001-05-29 | Juin-Hwey Chen | Computational complexity reduction during frame erasure or packet loss |
| JP3713288B2 (ja) | 1994-04-01 | 2005-11-09 | 株式会社東芝 | 音声復号装置 |
| JP3416331B2 (ja) | 1995-04-28 | 2003-06-16 | 松下電器産業株式会社 | 音声復号化装置 |
| SE506341C2 (sv) | 1996-04-10 | 1997-12-08 | Ericsson Telefon Ab L M | Metod och anordning för rekonstruktion av en mottagen talsignal |
| JP3583550B2 (ja) | 1996-07-01 | 2004-11-04 | 松下電器産業株式会社 | 補間装置 |
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| US6810377B1 (en) | 1998-06-19 | 2004-10-26 | Comsat Corporation | Lost frame recovery techniques for parametric, LPC-based speech coding systems |
| US6373842B1 (en) * | 1998-11-19 | 2002-04-16 | Nortel Networks Limited | Unidirectional streaming services in wireless systems |
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| US6493664B1 (en) * | 1999-04-05 | 2002-12-10 | Hughes Electronics Corporation | Spectral magnitude modeling and quantization in a frequency domain interpolative speech codec system |
-
2001
- 2001-07-30 US US09/918,300 patent/US7031926B2/en not_active Expired - Lifetime
- 2001-10-17 DE DE60125219T patent/DE60125219T2/de not_active Revoked
- 2001-10-17 EP EP01978706A patent/EP1332493B1/de not_active Revoked
- 2001-10-17 BR BRPI0114827A patent/BRPI0114827B1/pt unknown
- 2001-10-17 AU AU1079902A patent/AU1079902A/xx active Pending
- 2001-10-17 PT PT01978706T patent/PT1332493E/pt unknown
- 2001-10-17 BR BR0114827-3A patent/BR0114827A/pt active IP Right Grant
- 2001-10-17 CN CNB018209378A patent/CN1291374C/zh not_active Expired - Lifetime
- 2001-10-17 CA CA002425034A patent/CA2425034A1/en not_active Abandoned
- 2001-10-17 AT AT01978706T patent/ATE348385T1/de not_active IP Right Cessation
- 2001-10-17 ES ES01978706T patent/ES2276839T3/es not_active Expired - Lifetime
- 2001-10-17 JP JP2002538420A patent/JP2004522178A/ja active Pending
- 2001-10-17 KR KR1020037005602A patent/KR100581413B1/ko not_active Expired - Lifetime
- 2001-10-17 WO PCT/IB2001/001950 patent/WO2002035520A2/en not_active Ceased
-
2003
- 2003-04-09 ZA ZA200302778A patent/ZA200302778B/en unknown
-
2006
- 2006-04-10 US US11/402,220 patent/US7529673B2/en not_active Expired - Lifetime
- 2006-10-04 JP JP2006273448A patent/JP2007065679A/ja active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| JP2007065679A (ja) | 2007-03-15 |
| US20020091523A1 (en) | 2002-07-11 |
| PT1332493E (pt) | 2007-02-28 |
| DE60125219D1 (de) | 2007-01-25 |
| CN1535461A (zh) | 2004-10-06 |
| US20070239462A1 (en) | 2007-10-11 |
| BR0114827A (pt) | 2004-06-15 |
| ES2276839T3 (es) | 2007-07-01 |
| BRPI0114827B1 (pt) | 2018-09-11 |
| JP2004522178A (ja) | 2004-07-22 |
| AU2002210799B2 (en) | 2005-06-23 |
| KR20030048067A (ko) | 2003-06-18 |
| EP1332493B1 (de) | 2006-12-13 |
| KR100581413B1 (ko) | 2006-05-23 |
| EP1332493A2 (de) | 2003-08-06 |
| US7529673B2 (en) | 2009-05-05 |
| WO2002035520A3 (en) | 2002-07-04 |
| CN1291374C (zh) | 2006-12-20 |
| DE60125219T2 (de) | 2007-03-29 |
| ZA200302778B (en) | 2004-02-27 |
| US7031926B2 (en) | 2006-04-18 |
| CA2425034A1 (en) | 2002-05-02 |
| AU1079902A (en) | 2002-05-06 |
| WO2002035520A2 (en) | 2002-05-02 |
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