JP4246704B2 - 冗長透かし符号化によるコピー保護システム及び方法 - Google Patents
冗長透かし符号化によるコピー保護システム及び方法 Download PDFInfo
- Publication number
- JP4246704B2 JP4246704B2 JP2004533752A JP2004533752A JP4246704B2 JP 4246704 B2 JP4246704 B2 JP 4246704B2 JP 2004533752 A JP2004533752 A JP 2004533752A JP 2004533752 A JP2004533752 A JP 2004533752A JP 4246704 B2 JP4246704 B2 JP 4246704B2
- Authority
- JP
- Japan
- Prior art keywords
- watermark
- content material
- watermarks
- redundant
- sign
- 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.)
- Expired - Fee Related
Links
- 238000000034 method Methods 0.000 title description 35
- 238000001514 detection method Methods 0.000 claims description 35
- 238000012986 modification Methods 0.000 claims description 7
- 230000004048 modification Effects 0.000 claims description 7
- 230000008569 process Effects 0.000 description 28
- 238000009877 rendering Methods 0.000 description 12
- 238000012360 testing method Methods 0.000 description 11
- 238000010586 diagram Methods 0.000 description 5
- 238000012545 processing Methods 0.000 description 5
- 238000001228 spectrum Methods 0.000 description 5
- 230000000875 corresponding effect Effects 0.000 description 4
- 238000001617 sequential probability ratio test Methods 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000011156 evaluation Methods 0.000 description 2
- 238000000528 statistical test Methods 0.000 description 2
- 238000012795 verification Methods 0.000 description 2
- 230000008901 benefit Effects 0.000 description 1
- 238000000546 chi-square test Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 230000002596 correlated effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 230000009291 secondary effect Effects 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F18/00—Pattern recognition
-
- 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
- G06T1/0071—Robust watermarking, e.g. average attack or collusion attack resistant using multiple or alternating watermarks
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F17/00—Digital computing or data processing equipment or methods, specially adapted for specific functions
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
- G06F21/10—Protecting distributed programs or content, e.g. vending or licensing of copyrighted material ; Digital rights management [DRM]
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
- G11B20/00086—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
- G11B20/00086—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy
- G11B20/00884—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving a watermark, i.e. a barely perceptible transformation of the original data which can nevertheless be recognised by an algorithm
-
- 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
- H04N1/32—Circuits or arrangements for control or supervision between transmitter and receiver or between image input and image output device, e.g. between a still-image camera and its memory or between a still-image camera and a printer device
- H04N1/32101—Display, printing, storage or transmission of additional information, e.g. ID code, date and time or title
- H04N1/32144—Display, printing, storage or transmission of additional information, e.g. ID code, date and time or title embedded in the image data, i.e. enclosed or integrated in the image, e.g. watermark, super-imposed logo or stamp
-
- 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
- H04N1/32—Circuits or arrangements for control or supervision between transmitter and receiver or between image input and image output device, e.g. between a still-image camera and its memory or between a still-image camera and a printer device
- H04N1/32101—Display, printing, storage or transmission of additional information, e.g. ID code, date and time or title
- H04N1/32144—Display, printing, storage or transmission of additional information, e.g. ID code, date and time or title embedded in the image data, i.e. enclosed or integrated in the image, e.g. watermark, super-imposed logo or stamp
- H04N1/32149—Methods relating to embedding, encoding, decoding, detection or retrieval operations
- H04N1/32154—Transform domain methods
- H04N1/32187—Transform domain methods with selective or adaptive application of the additional information, e.g. in selected frequency coefficients
-
- 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
- H04N1/32—Circuits or arrangements for control or supervision between transmitter and receiver or between image input and image output device, e.g. between a still-image camera and its memory or between a still-image camera and a printer device
- H04N1/32101—Display, printing, storage or transmission of additional information, e.g. ID code, date and time or title
- H04N1/32144—Display, printing, storage or transmission of additional information, e.g. ID code, date and time or title embedded in the image data, i.e. enclosed or integrated in the image, e.g. watermark, super-imposed logo or stamp
- H04N1/32149—Methods relating to embedding, encoding, decoding, detection or retrieval operations
- H04N1/32288—Multiple embedding, e.g. cocktail embedding, or redundant embedding, e.g. repeating the additional information at a plurality of locations in the image
-
- 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
- G06T2201/0052—Embedding of the watermark in the frequency domain
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N2201/00—Indexing scheme relating to scanning, transmission or reproduction of documents or the like, and to details thereof
- H04N2201/32—Circuits or arrangements for control or supervision between transmitter and receiver or between image input and image output device, e.g. between a still-image camera and its memory or between a still-image camera and a printer device
- H04N2201/3201—Display, printing, storage or transmission of additional information, e.g. ID code, date and time or title
- H04N2201/3225—Display, printing, storage or transmission of additional information, e.g. ID code, date and time or title of data relating to an image, a page or a document
- H04N2201/3233—Display, printing, storage or transmission of additional information, e.g. ID code, date and time or title of data relating to an image, a page or a document of authentication information, e.g. digital signature, watermark
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N2201/00—Indexing scheme relating to scanning, transmission or reproduction of documents or the like, and to details thereof
- H04N2201/32—Circuits or arrangements for control or supervision between transmitter and receiver or between image input and image output device, e.g. between a still-image camera and its memory or between a still-image camera and a printer device
- H04N2201/3201—Display, printing, storage or transmission of additional information, e.g. ID code, date and time or title
- H04N2201/3269—Display, printing, storage or transmission of additional information, e.g. ID code, date and time or title of machine readable codes or marks, e.g. bar codes or glyphs
- H04N2201/327—Display, printing, storage or transmission of additional information, e.g. ID code, date and time or title of machine readable codes or marks, e.g. bar codes or glyphs which are undetectable to the naked eye, e.g. embedded codes
Description
との間で区別するために用いることができるように、冗長透かし符号化器120を制御する。
(1−qn)≦0.01
の、ようである。
Claims (4)
- 保護されるコンテンツマテリアルのセグメントに透かしを符号化する透かし符号化器;及び
前記透かし符号化器に実施可能であるように結合された冗長度制御器であって、前記の保護されるコンテンツマテリアルに複数の透かしを符号化するために前記透かし符号化器を制御する、冗長度制御器;
を有する透かし化システムであり、
複数の透かしの数nは、次式
(1−qn)≦k
を満足し、ここで、qは前記コンテンツマテリアルにおいて各々の透かしを検出しない確率に対応し、kは、前記コンテンツマテリアルが保護されるように決定するときのエラーの確率に対応する;
ことを特徴とする透かし化システム。 - 請求項1に記載の透かし化システムであって;
前記冗長度制御器は、受信システムにおいて前記の複数の透かしの少なくとも1つの検出を容易にするために前記の複数の透かしの数を決定する;
ことを特徴とする透かし化システム。 - 請求項2に記載の透かし化システムであって;
前記冗長度制御器は、前記受信システムにおいて前記の保護されるコンテンツマテリアルの修正の検出を容易にするために前記の複数の透かしの前記数を更に決定する;
ことを特徴とする透かし化システム。 - 請求項1に記載の透かし化システムであって:
前記冗長度制御器は、受信システムにおいて前記の保護されるコンテンツマテリアルの修正の検出を容易にするために前記複数の透かしの前記数を決定する;
ことを特徴とする透かし化システム。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/233,454 US7133534B2 (en) | 2002-09-03 | 2002-09-03 | Copy protection via redundant watermark encoding |
PCT/IB2003/003796 WO2004023472A1 (en) | 2002-09-03 | 2003-08-27 | Copy protection via redundant watermark encoding |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2008281086A Division JP4606489B2 (ja) | 2002-09-03 | 2008-10-31 | 冗長透かし符号化によるコピー保護システム及び方法 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2005537760A JP2005537760A (ja) | 2005-12-08 |
JP4246704B2 true JP4246704B2 (ja) | 2009-04-02 |
Family
ID=31977235
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2004533752A Expired - Fee Related JP4246704B2 (ja) | 2002-09-03 | 2003-08-27 | 冗長透かし符号化によるコピー保護システム及び方法 |
JP2008281086A Expired - Lifetime JP4606489B2 (ja) | 2002-09-03 | 2008-10-31 | 冗長透かし符号化によるコピー保護システム及び方法 |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2008281086A Expired - Lifetime JP4606489B2 (ja) | 2002-09-03 | 2008-10-31 | 冗長透かし符号化によるコピー保護システム及び方法 |
Country Status (7)
Country | Link |
---|---|
US (1) | US7133534B2 (ja) |
EP (1) | EP1537576A1 (ja) |
JP (2) | JP4246704B2 (ja) |
KR (1) | KR20050057062A (ja) |
CN (1) | CN100431027C (ja) |
AU (1) | AU2003255994A1 (ja) |
WO (1) | WO2004023472A1 (ja) |
Families Citing this family (37)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7644282B2 (en) | 1998-05-28 | 2010-01-05 | Verance Corporation | Pre-processed information embedding system |
US6737957B1 (en) | 2000-02-16 | 2004-05-18 | Verance Corporation | Remote control signaling using audio watermarks |
EP2782337A3 (en) | 2002-10-15 | 2014-11-26 | Verance Corporation | Media monitoring, management and information system |
US9055239B2 (en) * | 2003-10-08 | 2015-06-09 | Verance Corporation | Signal continuity assessment using embedded watermarks |
US7369677B2 (en) | 2005-04-26 | 2008-05-06 | Verance Corporation | System reactions to the detection of embedded watermarks in a digital host content |
US7616776B2 (en) | 2005-04-26 | 2009-11-10 | Verance Corproation | Methods and apparatus for enhancing the robustness of watermark extraction from digital host content |
US20060239501A1 (en) | 2005-04-26 | 2006-10-26 | Verance Corporation | Security enhancements of digital watermarks for multi-media content |
US7539870B2 (en) * | 2004-02-10 | 2009-05-26 | Microsoft Corporation | Media watermarking by biasing randomized statistics |
US8127137B2 (en) * | 2004-03-18 | 2012-02-28 | Digimarc Corporation | Watermark payload encryption for media including multiple watermarks |
US8667275B2 (en) * | 2004-06-03 | 2014-03-04 | Digimarc Corporation | Economically secure digital mass media systems |
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 |
US7756289B2 (en) * | 2006-03-22 | 2010-07-13 | Ancestry.Com Operations Inc. | Image watermarking systems and methods |
JP4287465B2 (ja) * | 2006-12-18 | 2009-07-01 | シャープ株式会社 | 画像処理装置 |
US8259938B2 (en) | 2008-06-24 | 2012-09-04 | Verance Corporation | Efficient and secure forensic marking in compressed |
US9893927B2 (en) * | 2010-04-08 | 2018-02-13 | Cometch EF Data Corp. | Embedded meta-carrier with spread spectrum via overlaid carriers |
US9088346B2 (en) * | 2010-06-30 | 2015-07-21 | Comtech Ef Data Corp. | System and method for a broadcast recovery carrier channel for static and dynamic carrier systems |
US8838977B2 (en) | 2010-09-16 | 2014-09-16 | Verance Corporation | Watermark extraction and content screening in a networked environment |
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 |
US8682026B2 (en) | 2011-11-03 | 2014-03-25 | Verance Corporation | Efficient extraction of embedded watermarks in the presence of host content distortions |
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 |
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 |
US8726304B2 (en) | 2012-09-13 | 2014-05-13 | Verance Corporation | Time varying evaluation of multimedia content |
US9106964B2 (en) | 2012-09-13 | 2015-08-11 | Verance Corporation | Enhanced content distribution using advertisements |
US9262793B2 (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 |
KR101519447B1 (ko) * | 2013-11-26 | 2015-05-12 | 한국과학기술원 | 하이브리드 기술을 이용한 통계적 모델 검사 장치 및 방법 |
WO2015138798A1 (en) | 2014-03-13 | 2015-09-17 | Verance Corporation | Interactive content acquisition using embedded codes |
US20170078765A1 (en) * | 2015-04-23 | 2017-03-16 | Lg Electronics Inc. | Apparatus for transmitting broadcast signal, apparatus for receiving broadcast signal, method for transmitting broadcast signal and method for receiving broadcast signal |
CN109995742B (zh) * | 2018-01-02 | 2021-01-05 | 国家电网有限公司 | 基于数据包间隔的网络流水印及其检测方法 |
CA3090523C (en) | 2019-08-20 | 2022-03-22 | Citrix Systems, Inc. | Masked watermarks and related systems and techniques |
Family Cites Families (25)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6449377B1 (en) * | 1995-05-08 | 2002-09-10 | Digimarc Corporation | Methods and systems for watermark processing of line art images |
US7039214B2 (en) * | 1999-11-05 | 2006-05-02 | Digimarc Corporation | Embedding watermark components during separate printing stages |
US20030056104A1 (en) * | 1994-03-17 | 2003-03-20 | Carr J. Scott | Digitally watermarking checks and other value documents |
US6744906B2 (en) * | 1995-05-08 | 2004-06-01 | Digimarc Corporation | Methods and systems using multiple watermarks |
EP0766468B1 (en) * | 1995-09-28 | 2006-05-03 | Nec Corporation | Method and system for inserting a spread spectrum watermark into multimedia data |
US6170017B1 (en) * | 1997-05-08 | 2001-01-02 | International Business Machines Corporation | Method and system coordinating actions among a group of servers |
KR100583359B1 (ko) * | 1997-09-02 | 2006-05-25 | 코닌클리케 필립스 일렉트로닉스 엔.브이. | 워터마크의 검출방법 및 검출장치 |
US6208735B1 (en) * | 1997-09-10 | 2001-03-27 | Nec Research Institute, Inc. | Secure spread spectrum watermarking for multimedia data |
JP4064506B2 (ja) * | 1997-09-17 | 2008-03-19 | パイオニア株式会社 | 電子透かし重畳方法及び検出方法並びに装置 |
US6064764A (en) * | 1998-03-30 | 2000-05-16 | Seiko Epson Corporation | Fragile watermarks for detecting tampering in images |
US6233347B1 (en) * | 1998-05-21 | 2001-05-15 | Massachusetts Institute Of Technology | System method, and product for information embedding using an ensemble of non-intersecting embedding generators |
US6154571A (en) * | 1998-06-24 | 2000-11-28 | Nec Research Institute, Inc. | Robust digital watermarking |
US6704431B1 (en) | 1998-09-04 | 2004-03-09 | Nippon Telegraph And Telephone Corporation | Method and apparatus for digital watermarking |
KR20010043954A (ko) * | 1999-03-31 | 2001-05-25 | 이데이 노부유끼 | 전자 워터 마크 정보에 근거하는 콘텐츠 처리 장치 |
US6192139B1 (en) * | 1999-05-11 | 2001-02-20 | Sony Corporation Of Japan | High redundancy system and method for watermarking digital image and video data |
AU1102201A (en) * | 1999-11-05 | 2001-06-06 | Digimarc Corporation | Watermarking an image in color plane separations and detecting such watermarks |
US7046808B1 (en) | 2000-03-24 | 2006-05-16 | Verance Corporation | Method and apparatus for detecting processing stages applied to a signal |
JP4843894B2 (ja) * | 2000-07-31 | 2011-12-21 | ソニー株式会社 | データ記録方法、データの出力方法、並びにデータの記録及び/又は再生方法 |
JP3511502B2 (ja) * | 2000-09-05 | 2004-03-29 | インターナショナル・ビジネス・マシーンズ・コーポレーション | データ加工検出システム、付加情報埋め込み装置、付加情報検出装置、デジタルコンテンツ、音楽コンテンツ処理装置、付加データ埋め込み方法、コンテンツ加工検出方法、記憶媒体及びプログラム伝送装置 |
JP3807220B2 (ja) * | 2000-10-18 | 2006-08-09 | 日本電気株式会社 | 電子透かし検出装置及び電子透かし検出方法 |
US7042470B2 (en) * | 2001-03-05 | 2006-05-09 | Digimarc Corporation | Using embedded steganographic identifiers in segmented areas of geographic images and characteristics corresponding to imagery data derived from aerial platforms |
US7062067B2 (en) * | 2001-06-21 | 2006-06-13 | International Business Machines Corporation | Protecting images with multiple image watermarks |
JP2003022389A (ja) * | 2001-07-06 | 2003-01-24 | Akihiko Uto | 接客サービスにおけるインターネット指名方法及びシステム |
US20030070075A1 (en) * | 2001-10-04 | 2003-04-10 | Frederic Deguillaume | Secure hybrid robust watermarking resistant against tampering and copy-attack |
US6954541B2 (en) * | 2002-05-29 | 2005-10-11 | Xerox Corporation | Method of detecting changes occurring in image editing using watermarks |
-
2002
- 2002-09-03 US US10/233,454 patent/US7133534B2/en active Active
-
2003
- 2003-08-27 CN CNB038208199A patent/CN100431027C/zh not_active Expired - Fee Related
- 2003-08-27 WO PCT/IB2003/003796 patent/WO2004023472A1/en active Application Filing
- 2003-08-27 KR KR1020057003520A patent/KR20050057062A/ko not_active Application Discontinuation
- 2003-08-27 AU AU2003255994A patent/AU2003255994A1/en not_active Abandoned
- 2003-08-27 JP JP2004533752A patent/JP4246704B2/ja not_active Expired - Fee Related
- 2003-08-27 EP EP03793985A patent/EP1537576A1/en not_active Withdrawn
-
2008
- 2008-10-31 JP JP2008281086A patent/JP4606489B2/ja not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
US20040042635A1 (en) | 2004-03-04 |
CN100431027C (zh) | 2008-11-05 |
KR20050057062A (ko) | 2005-06-16 |
CN1679104A (zh) | 2005-10-05 |
JP2005537760A (ja) | 2005-12-08 |
JP4606489B2 (ja) | 2011-01-05 |
EP1537576A1 (en) | 2005-06-08 |
WO2004023472A1 (en) | 2004-03-18 |
US7133534B2 (en) | 2006-11-07 |
JP2009038833A (ja) | 2009-02-19 |
AU2003255994A1 (en) | 2004-03-29 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP4246704B2 (ja) | 冗長透かし符号化によるコピー保護システム及び方法 | |
US6516079B1 (en) | Digital watermark screening and detecting strategies | |
CN103975605B (zh) | 基于试验性水印的水印提取 | |
US20020168087A1 (en) | Watermark position modulation | |
US20010054144A1 (en) | Confirming the existence of a complete data set under multiple control scenarios | |
Domingo-Ferrer et al. | Short collusion-secure fingerprints based on dual binary Hamming codes | |
EP1423764B1 (en) | Copy protection via multiple tests | |
JP2007505546A (ja) | 透かしシステムにおいてタンパリングを検出する方法及び装置 | |
US4745605A (en) | Control word error detection and classification | |
US7386148B2 (en) | Method and system for end of run watermarking | |
JP4410217B2 (ja) | 電子透かし方式 | |
US6976173B2 (en) | Methods of attack on a content screening algorithm based on adulteration of marked content | |
JP2008294916A (ja) | 電子透かし検出装置、電子透かし検出方法、電子透かし検出プログラム、および、電子透かし処理システム | |
KR100259296B1 (ko) | 오류정정 방법 | |
US20020183967A1 (en) | Methods and apparatus for verifying the presence of original data in content while copying an identifiable subset thereof | |
WO2021102687A1 (zh) | 一种通信加密方法、系统 | |
Vaitheki et al. | A Havoc proof for secure and robust audio watermarking | |
US20020199107A1 (en) | Methods and appararus for verifying the presence of original data in content | |
US20020144132A1 (en) | Apparatus and methods of preventing an adulteration attack on a content screening algorithm | |
Trappe et al. | Joint coding and embedding for collusion-resistant fingerprinting | |
Liu et al. | A content-based fragile watermark scheme for speech waveform authentication |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20060824 |
|
A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20071211 |
|
A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20080306 |
|
A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20080415 |
|
A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20080709 |
|
A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20080812 |
|
A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20081031 |
|
TRDD | Decision of grant or rejection written | ||
A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20081209 |
|
A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 |
|
A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20090108 |
|
R150 | Certificate of patent or registration of utility model |
Free format text: JAPANESE INTERMEDIATE CODE: R150 |
|
FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20120116 Year of fee payment: 3 |
|
FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20130116 Year of fee payment: 4 |
|
LAPS | Cancellation because of no payment of annual fees |