WO2002103695A3 - Vorrichtung und verfahren zum einbetten eines wasserzeichens in ein audiosignal - Google Patents

Vorrichtung und verfahren zum einbetten eines wasserzeichens in ein audiosignal Download PDF

Info

Publication number
WO2002103695A3
WO2002103695A3 PCT/EP2002/005173 EP0205173W WO02103695A3 WO 2002103695 A3 WO2002103695 A3 WO 2002103695A3 EP 0205173 W EP0205173 W EP 0205173W WO 02103695 A3 WO02103695 A3 WO 02103695A3
Authority
WO
WIPO (PCT)
Prior art keywords
watermark
audio signal
spectral representation
signal
initial value
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.)
Ceased
Application number
PCT/EP2002/005173
Other languages
English (en)
French (fr)
Other versions
WO2002103695A2 (de
Inventor
Juergen Herre
Ralph Kulessa
Christian Neubauer
Frank Siebenhaar
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fraunhofer Gesellschaft zur Foerderung der Angewandten Forschung eV
Original Assignee
Fraunhofer Gesellschaft zur Foerderung der Angewandten Forschung eV
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Fraunhofer Gesellschaft zur Foerderung der Angewandten Forschung eV filed Critical Fraunhofer Gesellschaft zur Foerderung der Angewandten Forschung eV
Priority to US10/481,860 priority Critical patent/US7346514B2/en
Priority to EP02740586A priority patent/EP1382038B1/de
Priority to AT02740586T priority patent/ATE298921T1/de
Priority to DE50203511T priority patent/DE50203511D1/de
Publication of WO2002103695A2 publication Critical patent/WO2002103695A2/de
Publication of WO2002103695A3 publication Critical patent/WO2002103695A3/de
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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
    • G10L19/018—Audio watermarking, i.e. embedding inaudible data in the audio signal
    • 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
    • G10L19/02—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 spectral analysis, e.g. transform vocoders or subband vocoders

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Computational Linguistics (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Human Computer Interaction (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Reverberation, Karaoke And Other Acoustics (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)

Abstract

Zum Einbetten eines Wasserzeichens in ein Audiosignal wer-den zunächst eine spektrale Darstellung des Audiosignals und eine spektrale Darstellung des Wasserzeichensignals er-mittelt (14, 16). Hierauf wird die spektrale Darstellung des Wasserzeichensignals abhängig von einer psychoakustischen Maskierungsschwelle (24) des Audiosignals verarbeitet (22). Das verarbeitete Wasserzeichensignal wird mit dem Audiosignal kombiniert (18). Die Verarbeitung der spektralen Darstellung des Wasserzeichensignals wird iterativ durchgeführt, indem zunächst ein vorbestimmter Wasserzeichen-Startwert (26) gewählt wird, die durch den vorbestimmten Wasserzeichen-Startwert in die spektrale Darstellung des Audiosignals nach einer Quantisierung der spektralen Darstellung des Audiosignals eingeführte Störung ermittelt wird (28), und dann der Wasserzeichen-Startwert so in die spektrale Darstellung des Audiosignals nach der Quantisierung eingeführte Störung kleiner oder gleich der vorbestimmten Störungsschwelle (32) ist.
PCT/EP2002/005173 2001-06-18 2002-05-10 Vorrichtung und verfahren zum einbetten eines wasserzeichens in ein audiosignal Ceased WO2002103695A2 (de)

Priority Applications (4)

Application Number Priority Date Filing Date Title
US10/481,860 US7346514B2 (en) 2001-06-18 2002-05-10 Device and method for embedding a watermark in an audio signal
EP02740586A EP1382038B1 (de) 2001-06-18 2002-05-10 Vorrichtung und verfahren zum einbetten eines wasserzeichens in ein audiosignal
AT02740586T ATE298921T1 (de) 2001-06-18 2002-05-10 Vorrichtung und verfahren zum einbetten eines wasserzeichens in ein audiosignal
DE50203511T DE50203511D1 (de) 2001-06-18 2002-05-10 Vorrichtung und verfahren zum einbetten eines wasserzeichens in ein audiosignal

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10129239.2 2001-06-18
DE10129239A DE10129239C1 (de) 2001-06-18 2001-06-18 Vorrichtung und Verfahren zum Einbetten eines Wasserzeichens in ein Audiosignal

Publications (2)

Publication Number Publication Date
WO2002103695A2 WO2002103695A2 (de) 2002-12-27
WO2002103695A3 true WO2002103695A3 (de) 2003-05-22

Family

ID=7688519

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2002/005173 Ceased WO2002103695A2 (de) 2001-06-18 2002-05-10 Vorrichtung und verfahren zum einbetten eines wasserzeichens in ein audiosignal

Country Status (5)

Country Link
US (1) US7346514B2 (de)
EP (1) EP1382038B1 (de)
AT (1) ATE298921T1 (de)
DE (2) DE10129239C1 (de)
WO (1) WO2002103695A2 (de)

Families Citing this family (64)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6738495B2 (en) * 1995-05-08 2004-05-18 Digimarc Corporation Watermarking enhanced to withstand anticipated corruptions
US20030133592A1 (en) 1996-05-07 2003-07-17 Rhoads Geoffrey B. Content objects with computer instructions steganographically encoded therein, and associated methods
US8306811B2 (en) * 1996-08-30 2012-11-06 Digimarc Corporation Embedding data in audio and detecting embedded data in audio
US7602940B2 (en) 1998-04-16 2009-10-13 Digimarc Corporation Steganographic data hiding using a device clock
US7644282B2 (en) 1998-05-28 2010-01-05 Verance Corporation Pre-processed information embedding system
DE19947877C2 (de) * 1999-10-05 2001-09-13 Fraunhofer Ges Forschung Verfahren und Vorrichtung zum Einbringen von Informationen in einen Datenstrom sowie Verfahren und Vorrichtung zum Codieren eines Audiosignals
US6737957B1 (en) 2000-02-16 2004-05-18 Verance Corporation Remote control signaling using audio watermarks
US7239981B2 (en) 2002-07-26 2007-07-03 Arbitron Inc. Systems and methods for gathering audience measurement data
US8959016B2 (en) 2002-09-27 2015-02-17 The Nielsen Company (Us), Llc Activating functions in processing devices using start codes embedded in audio
US9711153B2 (en) 2002-09-27 2017-07-18 The Nielsen Company (Us), Llc Activating functions in processing devices using encoded audio and detecting audio signatures
EP1552454B1 (de) 2002-10-15 2014-07-23 Verance Corporation Media-überwachung, verwaltung und informationssystem
US7352878B2 (en) * 2003-04-15 2008-04-01 Digimarc Corporation Human perceptual model applied to rendering of watermarked signals
DE10321983A1 (de) * 2003-05-15 2004-12-09 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Vorrichtung und Verfahren zum Einbetten einer binären Nutzinformation in ein Trägersignal
JP2005084625A (ja) * 2003-09-11 2005-03-31 Music Gate Inc 電子透かし合成方法及びプログラム
US7369677B2 (en) 2005-04-26 2008-05-06 Verance Corporation System reactions to the detection of embedded watermarks in a digital host content
US20060239501A1 (en) 2005-04-26 2006-10-26 Verance Corporation Security enhancements of digital watermarks for multi-media content
US9055239B2 (en) * 2003-10-08 2015-06-09 Verance Corporation Signal continuity assessment using embedded watermarks
US7616776B2 (en) * 2005-04-26 2009-11-10 Verance Corproation Methods and apparatus for enhancing the robustness of watermark extraction from digital host content
DE102004009955B3 (de) * 2004-03-01 2005-08-11 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Vorrichtung und Verfahren zum Ermitteln einer Quantisierer-Schrittweite
DE102004021403A1 (de) 2004-04-30 2005-11-24 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Informationssignalverarbeitung durch Modifikation in der Spektral-/Modulationsspektralbereichsdarstellung
DE102004021404B4 (de) * 2004-04-30 2007-05-10 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Wasserzeicheneinbettung
US8020004B2 (en) 2005-07-01 2011-09-13 Verance Corporation Forensic marking using a common customization function
US8781967B2 (en) 2005-07-07 2014-07-15 Verance Corporation Watermarking in an encrypted domain
KR100942860B1 (ko) * 2005-12-16 2010-02-17 돌비 스웨덴 에이비 특정된 엔트리 포인트를 가진 세그먼트로 데이터 스트림을 생성하고 해석하는 장치, 방법 및 이들을 기록한 컴퓨터로 읽을 수 있는 매체
US7809018B2 (en) * 2005-12-16 2010-10-05 Coding Technologies Ab Apparatus for generating and interpreting a data stream with segments having specified entry points
US8175280B2 (en) 2006-03-24 2012-05-08 Dolby International Ab Generation of spatial downmixes from parametric representations of multi channel signals
US8032371B2 (en) * 2006-07-28 2011-10-04 Apple Inc. Determining scale factor values in encoding audio data with AAC
US8010370B2 (en) * 2006-07-28 2011-08-30 Apple Inc. Bitrate control for perceptual coding
DK2082527T3 (en) 2006-10-18 2015-07-20 Destiny Software Productions Inc Methods for watermarking media data
EP2210252B1 (de) 2007-11-12 2017-05-24 The Nielsen Company (US), LLC Verfahren und vorrichtung für audiowasserzeichenmarkierung sowie erkennung und extraktion von wasserzeichen
US8457951B2 (en) 2008-01-29 2013-06-04 The Nielsen Company (Us), Llc Methods and apparatus for performing variable black length watermarking of media
US8259938B2 (en) 2008-06-24 2012-09-04 Verance Corporation Efficient and secure forensic marking in compressed
US8359205B2 (en) * 2008-10-24 2013-01-22 The Nielsen Company (Us), Llc Methods and apparatus to perform audio watermarking and watermark detection and extraction
US9667365B2 (en) 2008-10-24 2017-05-30 The Nielsen Company (Us), Llc Methods and apparatus to perform audio watermarking and watermark detection and extraction
CA2760677C (en) 2009-05-01 2018-07-24 David Henry Harkness Methods, apparatus and articles of manufacture to provide secondary content in association with primary broadcast media content
US9607131B2 (en) 2010-09-16 2017-03-28 Verance Corporation Secure and efficient content screening in a networked environment
EP2544179A1 (de) * 2011-07-08 2013-01-09 Thomson Licensing Verfahren und Vorrichtung zur Quantisierindexmodulation zur Wasserzeichenmarkierung eines Eingangssignals
US8682026B2 (en) 2011-11-03 2014-03-25 Verance Corporation Efficient extraction of embedded watermarks in the presence of host content distortions
US8615104B2 (en) 2011-11-03 2013-12-24 Verance Corporation Watermark extraction based on tentative watermarks
US8923548B2 (en) 2011-11-03 2014-12-30 Verance Corporation Extraction of embedded watermarks from a host content using a plurality of tentative watermarks
US8533481B2 (en) 2011-11-03 2013-09-10 Verance Corporation Extraction of embedded watermarks from a host content based on extrapolation techniques
US8745403B2 (en) 2011-11-23 2014-06-03 Verance Corporation Enhanced content management based on watermark extraction records
US9323902B2 (en) 2011-12-13 2016-04-26 Verance Corporation Conditional access using embedded watermarks
US9547753B2 (en) 2011-12-13 2017-01-17 Verance Corporation Coordinated watermarking
US9571606B2 (en) 2012-08-31 2017-02-14 Verance Corporation Social media viewing system
US20140075469A1 (en) 2012-09-13 2014-03-13 Verance Corporation Content distribution including advertisements
US8726304B2 (en) 2012-09-13 2014-05-13 Verance Corporation Time varying evaluation of multimedia content
US8869222B2 (en) 2012-09-13 2014-10-21 Verance Corporation Second screen content
US9401153B2 (en) 2012-10-15 2016-07-26 Digimarc Corporation Multi-mode audio recognition and auxiliary data encoding and decoding
US9305559B2 (en) 2012-10-15 2016-04-05 Digimarc Corporation Audio watermark encoding with reversing polarity and pairwise embedding
US9225310B1 (en) * 2012-11-08 2015-12-29 iZotope, Inc. Audio limiter system and method
US9262794B2 (en) 2013-03-14 2016-02-16 Verance Corporation Transactional video marking system
US9251549B2 (en) 2013-07-23 2016-02-02 Verance Corporation Watermark extractor enhancements based on payload ranking
US20150039321A1 (en) 2013-07-31 2015-02-05 Arbitron Inc. Apparatus, System and Method for Reading Codes From Digital Audio on a Processing Device
US9711152B2 (en) 2013-07-31 2017-07-18 The Nielsen Company (Us), Llc Systems apparatus and methods for encoding/decoding persistent universal media codes to encoded audio
US9208334B2 (en) 2013-10-25 2015-12-08 Verance Corporation Content management using multiple abstraction layers
EP2881941A1 (de) * 2013-12-09 2015-06-10 Thomson Licensing Verfahren und Vorrichtung zur Wassermarkierung eines Audiosignals
US9596521B2 (en) 2014-03-13 2017-03-14 Verance Corporation Interactive content acquisition using embedded codes
CN105244033B (zh) * 2014-07-09 2019-07-16 意法半导体亚太私人有限公司 用于数字水印的系统和方法
US10043527B1 (en) 2015-07-17 2018-08-07 Digimarc Corporation Human auditory system modeling with masking energy adaptation
KR102021739B1 (ko) * 2018-06-04 2019-11-05 채령 양자암호키로 생성한 암호화 제품정보 데이터와 해시함수 2차 행렬 (x,y) 좌표 값으로 마킹하는 복제 위변조 방지 양자암호마킹기 및 양자암호마킹 물품관리 시스템
CN113035213B (zh) * 2020-12-24 2022-07-22 中国电影科学技术研究所 数字音频水印检测方法及装置
CN115798489B (zh) * 2022-12-01 2026-03-24 杭州海康威视数字技术股份有限公司 语音对抗水印生成方法、装置和电子设备
CN119207487B (zh) * 2024-09-12 2025-07-04 安徽艾德未来智能科技有限公司 一种用于蓝牙耳机的音频录音及转换方法

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997033391A1 (de) * 1996-03-07 1997-09-12 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Codierverfahren zur einbringung eines nicht hörbaren datensignals in ein audiosignal, decodierverfahren, codierer udn decodierer
DE19938095A1 (de) * 1999-08-12 2001-03-01 Fraunhofer Ges Forschung Verfahren und Vorrichtung zum Einbringen von Informationen in ein Audiosignal und Verfahren und Vorrichtung zum Ermitteln von in einem Audiosignal eingebrachten Informationen
WO2001099109A1 (en) * 2000-06-08 2001-12-27 Markany Inc. Watermark embedding and extracting method for protecting digital audio contents copyright and preventing duplication and apparatus using thereof

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5319735A (en) * 1991-12-17 1994-06-07 Bolt Beranek And Newman Inc. Embedded signalling
GB2302000B (en) * 1994-03-31 1999-01-27 Arbitron Company The Apparatus and methods for including codes in audio signals
US5822360A (en) * 1995-09-06 1998-10-13 Solana Technology Development Corporation Method and apparatus for transporting auxiliary data in audio signals
US6061793A (en) * 1996-08-30 2000-05-09 Regents Of The University Of Minnesota Method and apparatus for embedding data, including watermarks, in human perceptible sounds
JP4226687B2 (ja) 1998-05-01 2009-02-18 ユナイテッド・モジュール・コーポレーション 電子透かし埋め込み装置及びオーディオ符号化装置
JP2000209097A (ja) 1999-01-14 2000-07-28 Sony Corp 信号処理装置とその方法、信号記録装置、信号再生装置および記録媒体
DE19906512C2 (de) * 1999-02-17 2001-01-25 Frank Kurth Verfahren zum unbemerkten Übertragen und/oder Speichern von Zusatzinformationen innerhalb eines Signals, insbesondere Audiosignals
DE19947877C2 (de) * 1999-10-05 2001-09-13 Fraunhofer Ges Forschung Verfahren und Vorrichtung zum Einbringen von Informationen in einen Datenstrom sowie Verfahren und Vorrichtung zum Codieren eines Audiosignals
US7395211B2 (en) * 2000-08-16 2008-07-01 Dolby Laboratories Licensing Corporation Modulating one or more parameters of an audio or video perceptual coding system in response to supplemental information

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997033391A1 (de) * 1996-03-07 1997-09-12 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Codierverfahren zur einbringung eines nicht hörbaren datensignals in ein audiosignal, decodierverfahren, codierer udn decodierer
DE19938095A1 (de) * 1999-08-12 2001-03-01 Fraunhofer Ges Forschung Verfahren und Vorrichtung zum Einbringen von Informationen in ein Audiosignal und Verfahren und Vorrichtung zum Ermitteln von in einem Audiosignal eingebrachten Informationen
WO2001099109A1 (en) * 2000-06-08 2001-12-27 Markany Inc. Watermark embedding and extracting method for protecting digital audio contents copyright and preventing duplication and apparatus using thereof

Non-Patent Citations (5)

* Cited by examiner, † Cited by third party
Title
BONEY L ET AL: "Digital Watermarks for Audio Signals", PROCEEDINGS OF THE INTERNATIONAL CONFERENCE ON MULTIMEDIA COMPUTING AND SYSTEMS, LOS ALAMITOS, CA, US, 17 June 1996 (1996-06-17), pages 473 - 480, XP002160496 *
JONGWON SEOK ET AL: "A novel audio watermarking algorithm for copyright protection of digital audio", ETRI JOURNAL, JUNE 2002, ELECTRON. & TELECOMMUN. RES. INST., TAEJON, SOUTH KOREA, vol. 24, no. 3, pages 181 - 189, XP002224418, ISSN: 1225-6463 *
NEUBAUER C ET AL: "Continuous steganographic data transmission", INFORMATION HIDING. SECOND INTERNATIONAL WORKSHOP, IH'98. PROCEEDINGS, INFORMATION HIDING. SECOND INTERNATIONAL WORKSHOP, IH'98. PROCEEDINGS, PORTLAND, OR, USA, 14-17 APRIL 1998, 1998, Berlin, Germany, Springer-Verlag, Germany, pages 208 - 217, XP002224416, ISBN: 3-540-65386-4 *
R.A. GARCIA: "Digital Watermarking of audio signals using a psychoacoustic auditory model and spread spectrum theory", AES 107TH CONVENTION, PREPRINT 5073, 24 September 1999 (1999-09-24) - 27 September 1999 (1999-09-27), New York, pages 1 - 42, XP002224419, Retrieved from the Internet <URL:http://web.media.mit.edu/~rago/publications/ragoAES1999.pdf> [retrieved on 20021007] *
ROBERTA EKLUND: "Audio Watermarking Techniques", INTERNET ARTICLE, XP002224417, Retrieved from the Internet <URL:http://www.musemagic.com/papers/watermark.htm> [retrieved on 20021007] *

Also Published As

Publication number Publication date
EP1382038B1 (de) 2005-06-29
DE50203511D1 (de) 2005-08-04
US7346514B2 (en) 2008-03-18
DE10129239C1 (de) 2002-10-31
WO2002103695A2 (de) 2002-12-27
EP1382038A2 (de) 2004-01-21
ATE298921T1 (de) 2005-07-15
US20040184369A1 (en) 2004-09-23

Similar Documents

Publication Publication Date Title
DE50203511D1 (de) Vorrichtung und verfahren zum einbetten eines wasserzeichens in ein audiosignal
WO2002103532A3 (de) Verfahren zur bearbeitung von daten
WO2000017859A8 (en) Noise suppression for low bitrate speech coder
CN101271690B (zh) 保护音频数据的音频扩频水印处理方法
WO2004096501A3 (en) Method and system for motion improvement
WO2004061819A3 (en) Method and apparatus for selective distributed speech recognition
AU2001245272A1 (en) System and method for referencing object instances and invoking methods on thoseobject instances from within speech recognition grammar
WO2007008012A3 (en) Apparatus and method of processing an audio signal
WO2002082661A3 (en) Canonical huffman encoded data decompression algorithm
CA2362584A1 (en) Speech enhancement with gain limitations based on speech activity
WO2004019204A3 (en) Processing application data
ATE377339T1 (de) Audio-kodierung
ATE305671T1 (de) Verfahren zum einfügen von zusatzdaten in einen audiodatenstrom
AU2001264360A1 (en) System and method of providing and authenticating works of authorship based on watermark technique
WO2002093876A3 (en) Final signal from a near-end signal and a far-end signal
WO2003007235A8 (en) Method and apparatus for identifying an unknown work
WO2001050325A3 (en) Lossless data compression
AU2002232795A1 (en) Perceptual audio signal compression system and method
ATE184140T1 (de) Codierverfahren zur einbringung eines nicht hörbaren datensignals in ein audiosignal, decodierverfahren, codierer und decodierer
WO2002058246A3 (en) Robust checksums
AU2002365587A1 (en) Receiver for audio enhancement and method therefor
WO2003090395A3 (en) Method and system for watermarking digital content and for introducing failure points into digital content
WO2004027642A3 (fr) Procede et systeme de traitement d&#39;une representation d&#39;un champ acoustique
WO2005083681A8 (de) Vorrichtung und verfahren zum ermitteln einer quantisierer-schrittweite
AU2001277647A1 (en) Method for noise robust classification in speech coding

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A2

Designated state(s): US

AL Designated countries for regional patents

Kind code of ref document: A2

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LU MC NL PT SE TR

121 Ep: the epo has been informed by wipo that ep was designated in this application
WWE Wipo information: entry into national phase

Ref document number: 2002740586

Country of ref document: EP

WWE Wipo information: entry into national phase

Ref document number: 10481860

Country of ref document: US

WWP Wipo information: published in national office

Ref document number: 2002740586

Country of ref document: EP

WWG Wipo information: grant in national office

Ref document number: 2002740586

Country of ref document: EP