WO1999012331A3 - Watermarking an information signal - Google Patents

Watermarking an information signal Download PDF

Info

Publication number
WO1999012331A3
WO1999012331A3 PCT/IB1998/001253 IB9801253W WO9912331A3 WO 1999012331 A3 WO1999012331 A3 WO 1999012331A3 IB 9801253 W IB9801253 W IB 9801253W WO 9912331 A3 WO9912331 A3 WO 9912331A3
Authority
WO
WIPO (PCT)
Prior art keywords
detecting
bit
watermark
signal
bit value
Prior art date
Application number
PCT/IB1998/001253
Other languages
French (fr)
Other versions
WO1999012331A2 (en
Inventor
Johan Paul Marie Gera Linnartz
Original Assignee
Koninkl Philips Electronics Nv
Philips Svenska Ab
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
Priority to IL12971298A priority Critical patent/IL129712A0/en
Application filed by Koninkl Philips Electronics Nv, Philips Svenska Ab filed Critical Koninkl Philips Electronics Nv
Priority to SK598-99A priority patent/SK59899A3/en
Priority to AU85562/98A priority patent/AU8556298A/en
Priority to EP98936607A priority patent/EP0935872B1/en
Priority to CA002271042A priority patent/CA2271042A1/en
Priority to BR9806152-6A priority patent/BR9806152A/en
Priority to KR1019997003844A priority patent/KR100594955B1/en
Priority to JP51649199A priority patent/JP3897825B2/en
Priority to DE69803268T priority patent/DE69803268T2/en
Priority to AT98936607T priority patent/ATE209418T1/en
Publication of WO1999012331A2 publication Critical patent/WO1999012331A2/en
Priority to BG103366A priority patent/BG63063B1/en
Publication of WO1999012331A3 publication Critical patent/WO1999012331A3/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/76—Television signal recording
    • H04N5/91—Television signal processing therefor
    • H04N5/913—Television signal processing therefor for scrambling ; for copy protection
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T1/00—General purpose image data processing
    • G06T1/0021—Image watermarking
    • G06T1/005—Robust watermarking, e.g. average attack or collusion attack resistant
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/00002—Diagnosis, testing or measuring; Detecting, analysing or monitoring not otherwise provided for
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/00002—Diagnosis, testing or measuring; Detecting, analysing or monitoring not otherwise provided for
    • H04N1/00005—Diagnosis, testing or measuring; Detecting, analysing or monitoring not otherwise provided for relating to image data
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/00002—Diagnosis, testing or measuring; Detecting, analysing or monitoring not otherwise provided for
    • H04N1/00026—Methods therefor
    • H04N1/00037—Detecting, i.e. determining the occurrence of a predetermined state
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T2201/00—General purpose image data processing
    • G06T2201/005—Image watermarking
    • G06T2201/0051—Embedding of the watermark in the spatial domain
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T2201/00—General purpose image data processing
    • G06T2201/005—Image watermarking
    • G06T2201/0061—Embedding of the watermark in each block of the image, e.g. segmented watermarking
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T2201/00—General purpose image data processing
    • G06T2201/005—Image watermarking
    • G06T2201/0065—Extraction of an embedded watermark; Reliable detection
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T2201/00—General purpose image data processing
    • G06T2201/005—Image watermarking
    • G06T2201/0083—Image watermarking whereby only watermarked image required at decoder, e.g. source-based, blind, oblivious

Abstract

A method and arrangement for detecting a multi-bit watermark in a signal (e.g. a video image) are disclosed. Each bit of the multi-bit value is represented by an embedded watermark subpattern in the signal. Instead of detecting in a conventional manner the presence of each individual subpattern (i.e. detecting each individual bit), the detection comprises the steps of: detecting (24, 23) the presence of the full watermark in the signal irrespective of its multi-bit value, and detecting (25) to which extent the presence of subpatterns corresponds with the multi-bit value to be checked. The reliability of watermark detection is hereby improved.
PCT/IB1998/001253 1997-09-02 1998-08-17 Watermarking an information signal WO1999012331A2 (en)

Priority Applications (11)

Application Number Priority Date Filing Date Title
BR9806152-6A BR9806152A (en) 1997-09-02 1998-08-17 Process and arrangement for detecting a multi-bit "watermark" in a signal, and process and arrangement for embedding a multi-bit "watermark" in a video image
SK598-99A SK59899A3 (en) 1997-09-02 1998-08-17 Watermaking an information signal
AU85562/98A AU8556298A (en) 1997-09-02 1998-08-17 Watermarking an information signal
EP98936607A EP0935872B1 (en) 1997-09-02 1998-08-17 Watermarking an information signal
CA002271042A CA2271042A1 (en) 1997-09-02 1998-08-17 Watermarking an information signal
IL12971298A IL129712A0 (en) 1997-09-02 1998-08-17 Watermarking an information signal
KR1019997003844A KR100594955B1 (en) 1997-09-02 1998-08-17 Watermarking an information signal
AT98936607T ATE209418T1 (en) 1997-09-02 1998-08-17 GENERATION OF A WATERMARK IN AN INFORMATION SIGNAL
DE69803268T DE69803268T2 (en) 1997-09-02 1998-08-17 GENERATION OF A WATERMARK IN AN INFORMATION SIGNAL
JP51649199A JP3897825B2 (en) 1997-09-02 1998-08-17 Information signal water mark
BG103366A BG63063B1 (en) 1997-09-02 1999-04-28 Method and device for marking an information signal by an invisible sign

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP97202700 1997-09-02
EP97202700.7 1997-09-02

Publications (2)

Publication Number Publication Date
WO1999012331A2 WO1999012331A2 (en) 1999-03-11
WO1999012331A3 true WO1999012331A3 (en) 1999-05-27

Family

ID=8228696

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB1998/001253 WO1999012331A2 (en) 1997-09-02 1998-08-17 Watermarking an information signal

Country Status (23)

Country Link
US (3) US6570996B1 (en)
EP (1) EP0935872B1 (en)
JP (1) JP3897825B2 (en)
KR (1) KR100594955B1 (en)
CN (1) CN1160935C (en)
AR (2) AR013948A1 (en)
AT (1) ATE209418T1 (en)
AU (1) AU8556298A (en)
BG (1) BG63063B1 (en)
BR (1) BR9806152A (en)
CA (1) CA2271042A1 (en)
CZ (1) CZ153299A3 (en)
DE (1) DE69803268T2 (en)
ES (1) ES2168778T3 (en)
HU (1) HUP0001275A3 (en)
ID (1) ID21561A (en)
IL (1) IL129712A0 (en)
SK (1) SK59899A3 (en)
TR (1) TR199900953T1 (en)
TW (1) TW401700B (en)
WO (1) WO1999012331A2 (en)
YU (1) YU23799A (en)
ZA (1) ZA987922B (en)

Families Citing this family (62)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6516079B1 (en) * 2000-02-14 2003-02-04 Digimarc Corporation Digital watermark screening and detecting strategies
US6973197B2 (en) * 1999-11-05 2005-12-06 Digimarc Corporation Watermarking with separate application of the grid and payload signals
IL129712A0 (en) * 1997-09-02 2000-02-29 Koninkl Philips Electronics Nv Watermarking an information signal
JP2001525151A (en) * 1998-03-04 2001-12-04 コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ Watermark detection
US7644282B2 (en) 1998-05-28 2010-01-05 Verance Corporation Pre-processed information embedding system
US6442283B1 (en) * 1999-01-11 2002-08-27 Digimarc Corporation Multimedia data embedding
US7334247B1 (en) * 1999-03-29 2008-02-19 The Directv Group, Inc. Method and apparatus for watermarking received television content
US6737957B1 (en) 2000-02-16 2004-05-18 Verance Corporation Remote control signaling using audio watermarks
US7020303B2 (en) * 2000-03-18 2006-03-28 Digimarc Corporation Feature-based watermarks and watermark detection strategies
US7305104B2 (en) 2000-04-21 2007-12-04 Digimarc Corporation Authentication of identification documents using digital watermarks
KR100422181B1 (en) * 2000-06-20 2004-03-12 주식회사 실트로닉 테크놀로지 Statistical method for embedding and detecting digital watermarking
US7617509B1 (en) * 2000-06-23 2009-11-10 International Business Machines Corporation Method and system for automated monitoring of quality of service of digital video material distribution and play-out
CN1294738C (en) 2001-02-13 2007-01-10 皇家菲利浦电子有限公司 Method and electric circuit arrangement for detecting watermark in information signal
EP1374596A1 (en) * 2001-02-13 2004-01-02 Koninklijke Philips Electronics N.V. Method and arrangement for detecting multiple watermarks in an information signal
US9363409B2 (en) 2001-03-05 2016-06-07 Digimarc Corporation Image management system and methods using digital watermarks
US6664976B2 (en) 2001-04-18 2003-12-16 Digimarc Corporation Image management system and methods using digital watermarks
US8050452B2 (en) * 2001-03-22 2011-11-01 Digimarc Corporation Quantization-based data embedding in mapped data
US7376242B2 (en) * 2001-03-22 2008-05-20 Digimarc Corporation Quantization-based data embedding in mapped data
US7058201B2 (en) * 2001-03-28 2006-06-06 Lg Electronics Inc. Method of embedding watermark into digital image
US7340076B2 (en) * 2001-05-10 2008-03-04 Digimarc Corporation Digital watermarks for unmanned vehicle navigation
US20020169962A1 (en) * 2001-05-10 2002-11-14 Brundage Trent J. Digital watermarks used in automation equipment
US7006662B2 (en) * 2001-12-13 2006-02-28 Digimarc Corporation Reversible watermarking using expansion, rate control and iterative embedding
EP2442566A3 (en) 2002-10-15 2012-08-08 Verance Corporation Media Monitoring, Management and Information System
US8832732B2 (en) * 2003-04-16 2014-09-09 Accenture Global Services Limited Controlled multi-media program review
KR20060080179A (en) * 2003-08-19 2006-07-07 코닌클리케 필립스 일렉트로닉스 엔.브이. Detecting a watermark using a subset of available detection methods
KR20050028193A (en) * 2003-09-17 2005-03-22 삼성전자주식회사 Method for adaptively inserting additional information into audio signal and apparatus therefor, method for reproducing additional information inserted in audio data and apparatus therefor, and recording medium for recording programs for realizing the same
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
KR20050078767A (en) * 2004-02-02 2005-08-08 삼성전자주식회사 Digital image watermarking apparatus and method
JP4981455B2 (en) 2004-02-04 2012-07-18 ディジマーク コーポレイション On-chip digital watermarked image signal and photo travel log with digital watermark
JP3944490B2 (en) * 2004-02-17 2007-07-11 株式会社東芝 Digital watermark embedding device, digital watermark detection device, digital watermark embedding method, digital watermark detection method, digital watermark embedding program, and digital watermark detection program
EP1896990A4 (en) * 2005-06-30 2011-03-16 Verimatrix Inc System and method for aggregating, editing, and distributing content
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
JP5097114B2 (en) * 2006-06-19 2012-12-12 パナソニック株式会社 Information embedding device and detection device
US20080127287A1 (en) * 2006-11-28 2008-05-29 John Mezzalingua Associates, Inc. Apparatus and method for embedding/detecting an auxiliary signal within a catv traffic stream
US20090133054A1 (en) * 2007-11-16 2009-05-21 Matthew Thomas Boggie Presentation of auxiliary content via a content presentation device
US8259938B2 (en) 2008-06-24 2012-09-04 Verance Corporation Efficient and secure forensic marking in compressed
KR100977712B1 (en) * 2008-07-24 2010-08-24 주식회사 씨케이앤비 Apparatus and Method for Creating Constructive Muli-Pattern Watermark, Apparatus and Method for Embedding Watermark by Using The Same, Apparatus and Method for Extracting Watermark by Using The Same
US8838978B2 (en) 2010-09-16 2014-09-16 Verance Corporation Content access management using extracted watermark information
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
US8533481B2 (en) 2011-11-03 2013-09-10 Verance Corporation Extraction of embedded watermarks from a host content based on extrapolation techniques
US8923548B2 (en) 2011-11-03 2014-12-30 Verance Corporation Extraction of embedded watermarks from a host content using a plurality of tentative watermarks
US8745403B2 (en) 2011-11-23 2014-06-03 Verance Corporation Enhanced content management based on watermark extraction records
US9547753B2 (en) 2011-12-13 2017-01-17 Verance Corporation Coordinated watermarking
US9323902B2 (en) 2011-12-13 2016-04-26 Verance Corporation Conditional access using embedded watermarks
US9264706B2 (en) * 2012-04-11 2016-02-16 Qualcomm Incorporated Bypass bins for reference index coding in video coding
US9571606B2 (en) 2012-08-31 2017-02-14 Verance Corporation Social media viewing system
US8869222B2 (en) 2012-09-13 2014-10-21 Verance Corporation Second screen content
US9106964B2 (en) 2012-09-13 2015-08-11 Verance Corporation Enhanced content distribution using advertisements
US8726304B2 (en) 2012-09-13 2014-05-13 Verance Corporation Time varying evaluation of multimedia content
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
US9208334B2 (en) 2013-10-25 2015-12-08 Verance Corporation Content management using multiple abstraction layers
WO2015138798A1 (en) 2014-03-13 2015-09-17 Verance Corporation Interactive content acquisition using embedded codes
US10868620B2 (en) * 2018-12-26 2020-12-15 The Nielsen Company (Us), Llc Methods and apparatus for optimizing station reference fingerprint loading using reference watermarks
US11212560B2 (en) * 2019-06-24 2021-12-28 The Nielsen Company (Us), Llc Use of steganographically-encoded time information as basis to establish a time offset, to facilitate taking content-related action
US11234049B2 (en) * 2019-06-24 2022-01-25 The Nielsen Company (Us), Llc Use of steganographically-encoded time information as basis to control implementation of dynamic content modification
CN112995759A (en) * 2019-12-13 2021-06-18 腾讯科技（北京）有限公司 Interactive service processing method, system, device, equipment and storage medium

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0766468A2 (en) * 1995-09-28 1997-04-02 Nec Corporation Method and system for inserting a spread spectrum watermark into multimedia data
EP0840513A2 (en) * 1996-11-05 1998-05-06 Nec Corporation Digital data watermarking

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL8901032A (en) * 1988-11-10 1990-06-01 Philips Nv CODER FOR INCLUDING ADDITIONAL INFORMATION IN A DIGITAL AUDIO SIGNAL WITH A PREFERRED FORMAT, A DECODER FOR DERIVING THIS ADDITIONAL INFORMATION FROM THIS DIGITAL SIGNAL, AN APPARATUS FOR RECORDING A DIGITAL SIGNAL ON A CODE OF RECORD. OBTAINED A RECORD CARRIER WITH THIS DEVICE.
FI90934C (en) * 1992-04-13 1994-04-11 Salon Televisiotehdas Oy A method for incorporating digital information into an audio signal prior to its channel encoding
US6345104B1 (en) * 1994-03-17 2002-02-05 Digimarc Corporation Digital watermarks and methods for security documents
US7720249B2 (en) * 1993-11-18 2010-05-18 Digimarc Corporation Watermark embedder and reader
JP3850035B2 (en) * 1995-10-04 2006-11-29 コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ Marking technology for digitally encoded video and / or audio signals
PL329943A1 (en) * 1997-01-27 1999-04-26 Koninkl Philips Electronics Nv Method of entering additional data into an encoded signal
US5960081A (en) * 1997-06-05 1999-09-28 Cray Research, Inc. Embedding a digital signature in a video sequence
IL129712A0 (en) * 1997-09-02 2000-02-29 Koninkl Philips Electronics Nv Watermarking an information signal
US6064764A (en) * 1998-03-30 2000-05-16 Seiko Epson Corporation Fragile watermarks for detecting tampering in images
EP1292945A1 (en) * 2000-05-22 2003-03-19 Koninklijke Philips Electronics N.V. Watermark insertion and extraction

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0766468A2 (en) * 1995-09-28 1997-04-02 Nec Corporation Method and system for inserting a spread spectrum watermark into multimedia data
EP0840513A2 (en) * 1996-11-05 1998-05-06 Nec Corporation Digital data watermarking

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
IEEE WORKSHOP ON NONLINEAR SIGNAL AND IMAGE PROCESSING, June 1995, E. KOCH et al., "Towards Robust and Hidden Image Copyright Labeling", pages 452-455. *

Also Published As

Publication number Publication date
AR020483A1 (en) 2002-05-15
CN1237305A (en) 1999-12-01
BR9806152A (en) 2000-01-11
US6947573B2 (en) 2005-09-20
US20030194108A1 (en) 2003-10-16
KR20000068877A (en) 2000-11-25
ZA987922B (en) 2000-02-29
HUP0001275A2 (en) 2000-08-28
US6570996B1 (en) 2003-05-27
CN1160935C (en) 2004-08-04
IL129712A0 (en) 2000-02-29
JP2001505390A (en) 2001-04-17
EP0935872A2 (en) 1999-08-18
DE69803268D1 (en) 2002-02-21
CZ153299A3 (en) 1999-09-15
ATE209418T1 (en) 2001-12-15
ES2168778T3 (en) 2002-06-16
JP3897825B2 (en) 2007-03-28
BG103366A (en) 2000-02-29
HUP0001275A3 (en) 2002-09-30
US20040131228A1 (en) 2004-07-08
AU8556298A (en) 1999-03-22
WO1999012331A2 (en) 1999-03-11
CA2271042A1 (en) 1999-03-11
US6714659B2 (en) 2004-03-30
ID21561A (en) 1999-06-24
YU23799A (en) 1999-12-27
KR100594955B1 (en) 2006-07-03
DE69803268T2 (en) 2002-08-08
TR199900953T1 (en) 1999-12-21
SK59899A3 (en) 1999-11-08
AR013948A1 (en) 2001-01-31
EP0935872B1 (en) 2001-11-21
BG63063B1 (en) 2001-02-28
TW401700B (en) 2000-08-11

Similar Documents

Publication Publication Date Title
WO1999012331A3 (en) Watermarking an information signal
WO1999045707A3 (en) Watermark detection
CA2305254A1 (en) Method and apparatus for a copy-once watermark for video recording
EP0903736A3 (en) Recording/reproducing method and apparatus, processing apparatus, and recording medium for video signal having copy control information
EP0901282A3 (en) Method and apparatus for recording and reproducing electronic watermark information, and recording medium
CA2430021A1 (en) Method of detecting changes occurring in image editing using watermarks
EP0903943A3 (en) Method and apparatus for superposing a digital watermark and method and apparatus for detecting a digital watermark
EP1032205A3 (en) Additional information embedding and detecting method and apparatus
EP0901102A3 (en) Watermark embedding method and system
EP1306802A3 (en) Encoder and decoder for electronic watermark
EP0947953A3 (en) Watermarks for detecting tampering in images
WO2003096337A3 (en) Watermark embedding and retrieval
WO2004051552A8 (en) Face detection
WO2003055222A3 (en) Increasing integrity of watermarks using robust features
WO2003088146A3 (en) Method and device for embedding and extracting watermark information
WO2003036563A1 (en) Signal processing method and processor
WO2005006326A3 (en) Watermark embedding and detection
EP1006722A3 (en) Method of and apparatus for restricting copy of digital information, and apparatus for recording digital information
EP1199878A3 (en) A method of authorizing the reproduction of copyrighted images
EP1119195A3 (en) Digital reproducing apparatus
EP0854633A3 (en) Image data illegal use prevention system
WO2003098627A3 (en) Signal processing method and arrangement
WO2002065255A3 (en) Processing copy protection signals
WO2004019224A3 (en) Unit for and method of detection a content property in a sequence of video images
EP1102485A3 (en) Method and apparatus for data reproduction

Legal Events

Date Code Title Description
WWE Wipo information: entry into national phase

Ref document number: P-237/99

Country of ref document: YU

Ref document number: 98801261.8

Country of ref document: CN

AK Designated states

Kind code of ref document: A2

Designated state(s): AL AM AU AZ BA BB BG BR BY CA CN CU CZ EE GE GH HU ID IL IS JP KE KG KP KR KZ LC LK LR LS LT LV MD MG MK MN MW MX NO NZ PL RO RU SD SG SI SK SL TJ TM TR TT UA UG UZ VN YU ZW

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

ENP Entry into the national phase

Ref document number: 1999 516491

Country of ref document: JP

Kind code of ref document: A

WWE Wipo information: entry into national phase

Ref document number: PA/a/1999/003941

Country of ref document: MX

WWE Wipo information: entry into national phase

Ref document number: 1998936607

Country of ref document: EP

Ref document number: PV1999-1532

Country of ref document: CZ

ENP Entry into the national phase

Ref document number: 2271042

Country of ref document: CA

WWE Wipo information: entry into national phase

Ref document number: 1999/00953

Country of ref document: TR

Ref document number: 1019997003844

Country of ref document: KR

WWE Wipo information: entry into national phase

Ref document number: 59899

Country of ref document: SK

121 Ep: the epo has been informed by wipo that ep was designated in this application
AK Designated states

Kind code of ref document: A3

Designated state(s): AL AM AU AZ BA BB BG BR BY CA CN CU CZ EE GE GH HU ID IL IS JP KE KG KP KR KZ LC LK LR LS LT LV MD MG MK MN MW MX NO NZ PL RO RU SD SG SI SK SL TJ TM TR TT UA UG UZ VN YU ZW

AL Designated countries for regional patents

Kind code of ref document: A3

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

WWE Wipo information: entry into national phase

Ref document number: 85562/98

Country of ref document: AU

WWP Wipo information: published in national office

Ref document number: 1998936607

Country of ref document: EP

WWP Wipo information: published in national office

Ref document number: PV1999-1532

Country of ref document: CZ

WWP Wipo information: published in national office

Ref document number: 1019997003844

Country of ref document: KR

WWG Wipo information: grant in national office

Ref document number: 1998936607

Country of ref document: EP

WWG Wipo information: grant in national office

Ref document number: 1019997003844

Country of ref document: KR

WWR Wipo information: refused in national office

Ref document number: PV1999-1532

Country of ref document: CZ