DE69617467D1 - Verfahren und vorrichtung zur informationscodierung - Google Patents
Verfahren und vorrichtung zur informationscodierungInfo
- Publication number
- DE69617467D1 DE69617467D1 DE69617467T DE69617467T DE69617467D1 DE 69617467 D1 DE69617467 D1 DE 69617467D1 DE 69617467 T DE69617467 T DE 69617467T DE 69617467 T DE69617467 T DE 69617467T DE 69617467 D1 DE69617467 D1 DE 69617467D1
- Authority
- DE
- Germany
- Prior art keywords
- encoding information
- encoding
- information
- 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
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/08—Systems for the simultaneous or sequential transmission of more than one television signal, e.g. additional information signals, the signals occupying wholly or partially the same frequency band, e.g. by time division
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T9/00—Image coding
- G06T9/004—Predictors, e.g. intraframe, interframe coding
-
- 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
- H04N1/32203—Spatial or amplitude domain methods
-
- 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
- H04N1/32203—Spatial or amplitude domain methods
- H04N1/32208—Spatial or amplitude domain methods involving changing the magnitude of selected pixels, e.g. overlay of information or super-imposition
-
- 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
- H04N1/32203—Spatial or amplitude domain methods
- H04N1/32229—Spatial or amplitude domain methods with selective or adaptive application of the additional information, e.g. in selected regions of the image
- H04N1/3224—Spatial or amplitude domain methods with selective or adaptive application of the additional information, e.g. in selected regions of the image in edge regions
-
- 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
- H04N1/32203—Spatial or amplitude domain methods
- H04N1/32251—Spatial or amplitude domain methods in multilevel data, e.g. greyscale or continuous tone 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
- H04N1/32—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
- H04N1/32309—Methods relating to embedding, encoding, decoding, detection or retrieval operations in colour 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
- H04N1/32—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
- H04N1/3232—Robust embedding or watermarking
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
- H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
- H04N21/238—Interfacing the downstream path of the transmission network, e.g. adapting the transmission rate of a video stream to network bandwidth; Processing of multiplex streams
- H04N21/2389—Multiplex stream processing, e.g. multiplex stream encrypting
- H04N21/23892—Multiplex stream processing, e.g. multiplex stream encrypting involving embedding information at multiplex stream level, e.g. embedding a watermark at packet level
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/80—Generation or processing of content or additional data by content creator independently of the distribution process; Content per se
- H04N21/83—Generation or processing of protective or descriptive data associated with content; Content structuring
- H04N21/835—Generation of protective data, e.g. certificates
- H04N21/8358—Generation of protective data, e.g. certificates involving watermark
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Computer Security & Cryptography (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Compression Or Coding Systems Of Tv Signals (AREA)
- Compression Of Band Width Or Redundancy In Fax (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GBGB9502274.5A GB9502274D0 (en) | 1995-02-06 | 1995-02-06 | Method and apparatus for coding information |
PCT/GB1996/000246 WO1996025005A1 (en) | 1995-02-06 | 1996-02-05 | Method and apparatus for coding information |
Publications (2)
Publication Number | Publication Date |
---|---|
DE69617467D1 true DE69617467D1 (de) | 2002-01-10 |
DE69617467T2 DE69617467T2 (de) | 2002-08-22 |
Family
ID=10769150
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE69617467T Expired - Fee Related DE69617467T2 (de) | 1995-02-06 | 1996-02-05 | Verfahren und vorrichtung zur informationscodierung |
Country Status (8)
Country | Link |
---|---|
US (1) | US6181802B1 (de) |
EP (1) | EP0878094B1 (de) |
JP (1) | JPH10513324A (de) |
KR (1) | KR100413655B1 (de) |
CA (1) | CA2212328A1 (de) |
DE (1) | DE69617467T2 (de) |
GB (1) | GB9502274D0 (de) |
WO (1) | WO1996025005A1 (de) |
Families Citing this family (87)
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 |
US5822436A (en) | 1996-04-25 | 1998-10-13 | Digimarc Corporation | Photographic products and methods employing embedded information |
US6516079B1 (en) | 2000-02-14 | 2003-02-04 | Digimarc Corporation | Digital watermark screening and detecting strategies |
US6611607B1 (en) * | 1993-11-18 | 2003-08-26 | Digimarc Corporation | Integrating digital watermarks in multimedia content |
US7171016B1 (en) * | 1993-11-18 | 2007-01-30 | Digimarc Corporation | Method for monitoring internet dissemination of image, video and/or audio files |
US6614914B1 (en) | 1995-05-08 | 2003-09-02 | Digimarc Corporation | Watermark embedder and reader |
US6993152B2 (en) * | 1994-03-17 | 2006-01-31 | Digimarc Corporation | Hiding geo-location data through arrangement of objects |
US20020136429A1 (en) * | 1994-03-17 | 2002-09-26 | John Stach | Data hiding through arrangement of objects |
US7724919B2 (en) * | 1994-10-21 | 2010-05-25 | Digimarc Corporation | Methods and systems for steganographic processing |
DE69625626T2 (de) * | 1995-05-08 | 2003-10-16 | Digimarc Corp | Verbindungsherstellung zwischen Computern beruhend auf der Dekodierung einer steganographisch in einem Audioobjekt eingebetteten Adresse |
US7224819B2 (en) * | 1995-05-08 | 2007-05-29 | Digimarc Corporation | Integrating digital watermarks in multimedia content |
US6590996B1 (en) | 2000-02-14 | 2003-07-08 | Digimarc Corporation | Color adaptive watermarking |
EP0766468B1 (de) * | 1995-09-28 | 2006-05-03 | Nec Corporation | Verfahren und Vorrichtung zum Einfügen eines Spreizspektrumwasserzeichens in Multimediadaten |
US7715446B2 (en) * | 1996-04-25 | 2010-05-11 | Digimarc Corporation | Wireless methods and devices employing plural-bit data derived from audio information |
GB9616571D0 (en) * | 1996-08-07 | 1996-09-25 | Central Research Lab Ltd | Method and apparatus for coding information |
US6069914A (en) * | 1996-09-19 | 2000-05-30 | Nec Research Institute, Inc. | Watermarking of image data using MPEG/JPEG coefficients |
US5848155A (en) * | 1996-09-04 | 1998-12-08 | Nec Research Institute, Inc. | Spread spectrum watermark for embedded signalling |
US5915027A (en) * | 1996-11-05 | 1999-06-22 | Nec Research Institute | Digital watermarking |
JP3601566B2 (ja) * | 1996-12-18 | 2004-12-15 | 日本電信電話株式会社 | 情報多重化方法および著作権保護システム |
AUPO521897A0 (en) * | 1997-02-20 | 1997-04-11 | Telstra R & D Management Pty Ltd | Invisible digital watermarks |
GB9705045D0 (en) * | 1997-03-12 | 1997-04-30 | Central Research Lab Ltd | Method and apparatus for coding information |
JP3560441B2 (ja) | 1997-04-07 | 2004-09-02 | 日本アイ・ビー・エム株式会社 | 複数フレーム・データ・ハイディング方法及び検出方法 |
US8090142B2 (en) * | 1997-07-24 | 2012-01-03 | Regents Of The University Of Minnesota | Embedding data in and detecting embedded data from video objects |
US8155375B2 (en) * | 1997-07-24 | 2012-04-10 | Regents Of The University Of Minnesota | Video watermarking using temporal analysis |
US6404781B1 (en) | 1997-09-02 | 2002-06-11 | Hitachi, Ltd. | Data transmission method for embedded data, data transmitting and reproducing apparatuses and information recording medium therefor |
EP0901282B1 (de) * | 1997-09-03 | 2006-06-28 | Hitachi, Ltd. | Verfahren zur Aufnahme und Wiedergabe von Information über elektronische Wasserzeichen |
JP3902863B2 (ja) | 1997-09-03 | 2007-04-11 | 株式会社日立製作所 | データ重畳方法とデータ再生方法、及び、情報埋め込み方法と情報読みだし方法 |
DE69822950T2 (de) | 1997-09-03 | 2009-09-24 | Hitachi, Ltd. | Verfahren und System zum Einbetten von Information in Daten |
US6108434A (en) * | 1997-09-12 | 2000-08-22 | Signafy, Inc. | Counteracting geometric distortions for DCT based watermarking |
SG70120A1 (en) * | 1997-09-17 | 2000-01-25 | Hitachi Ltd | Recording/reproducing method and apparatus processing apparatus and recording medium for video signal having copy control information |
US6198832B1 (en) * | 1998-01-09 | 2001-03-06 | U.S. Philips Corporation | Embedding and detecting a watermark in images |
US6700994B2 (en) | 1998-01-09 | 2004-03-02 | Koninklijke Philips Electronics N.V. | Embedding and detecting a watermark in images |
JP3570213B2 (ja) | 1998-03-27 | 2004-09-29 | 株式会社日立製作所 | 電子透かし画像処理方法 |
US6263086B1 (en) * | 1998-04-15 | 2001-07-17 | Xerox Corporation | Automatic detection and retrieval of embedded invisible digital watermarks from halftone images |
US6773547B2 (en) * | 1998-05-08 | 2004-08-10 | American Air Liquide, Inc. | Process for the bleaching of low consistency pulp using high partial pressure ozone |
US6553127B1 (en) | 1998-05-20 | 2003-04-22 | Macrovision Corporation | Method and apparatus for selective block processing |
JP3156667B2 (ja) * | 1998-06-01 | 2001-04-16 | 日本電気株式会社 | 電子透かし挿入システム、電子透かし特性表作成装置 |
US6154571A (en) | 1998-06-24 | 2000-11-28 | Nec Research Institute, Inc. | Robust digital watermarking |
JP3592545B2 (ja) * | 1998-08-07 | 2004-11-24 | 株式会社リコー | 画像処理装置および画像処理方法および情報記録媒体 |
US6362492B1 (en) * | 1999-11-18 | 2002-03-26 | Komax Holding Ag | Method and device for detecting edge structures |
US6665417B1 (en) * | 1998-12-02 | 2003-12-16 | Hitachi, Ltd. | Method of judging digital watermark information |
JP3397157B2 (ja) * | 1999-01-13 | 2003-04-14 | 日本電気株式会社 | 電子透かし挿入システム |
US7013021B2 (en) | 1999-03-19 | 2006-03-14 | Digimarc Corporation | Watermark detection utilizing regions with higher probability of success |
JP3607521B2 (ja) * | 1999-03-24 | 2005-01-05 | 株式会社東芝 | 電子透かし埋込装置、電子透かし検出装置、デジタル情報配布装置及び記憶媒体 |
US6636633B2 (en) * | 1999-05-03 | 2003-10-21 | Intel Corporation | Rendering of photorealistic computer graphics images |
JP2001008019A (ja) * | 1999-06-18 | 2001-01-12 | Canon Inc | 画像処理装置およびその方法 |
AU6944200A (en) * | 1999-09-01 | 2001-03-26 | Digimarc Corporation | Watermarking digital images with intensity specified by area |
FI117533B (fi) * | 2000-01-20 | 2006-11-15 | Nokia Corp | Menetelmä digitaalisten videokuvien suodattamiseksi |
EP1186161A1 (de) * | 2000-02-29 | 2002-03-13 | Koninklijke Philips Electronics N.V. | Einbettung und detektion eines wasserzeichens in einem informationssignal |
JP2001275115A (ja) | 2000-03-23 | 2001-10-05 | Nec Corp | 電子すかしデータ挿入装置および検出装置 |
JP3630071B2 (ja) * | 2000-04-05 | 2005-03-16 | 日本電気株式会社 | 電子透かし検出器及びそれに用いる電子透かし検出方法 |
US6633654B2 (en) | 2000-06-19 | 2003-10-14 | Digimarc Corporation | Perceptual modeling of media signals based on local contrast and directional edges |
US6631198B1 (en) | 2000-06-19 | 2003-10-07 | Digimarc Corporation | Perceptual modeling of media signals based on local contrast and directional edges |
EP1336161A1 (de) * | 2000-11-07 | 2003-08-20 | Koninklijke Philips Electronics N.V. | Verfahren und anordnung zur wasserzeichneneinbettung in einem informtionsignal |
US6707928B2 (en) * | 2000-11-29 | 2004-03-16 | Intel Corporation | Method for block-based digital image watermarking |
US7098931B2 (en) | 2001-03-05 | 2006-08-29 | Digimarc Corporation | Image management system and methods using digital watermarks |
US7061510B2 (en) * | 2001-03-05 | 2006-06-13 | Digimarc Corporation | Geo-referencing of aerial imagery using embedded image identifiers and cross-referenced data sets |
US7254249B2 (en) * | 2001-03-05 | 2007-08-07 | Digimarc Corporation | Embedding location data in video |
US6950519B2 (en) | 2001-03-05 | 2005-09-27 | Digimarc Corporation | Geographically watermarked imagery and methods |
US6664976B2 (en) | 2001-04-18 | 2003-12-16 | Digimarc Corporation | Image management system and methods using digital watermarks |
US7249257B2 (en) * | 2001-03-05 | 2007-07-24 | Digimarc Corporation | Digitally watermarked maps and signs and related navigational tools |
US9363409B2 (en) * | 2001-03-05 | 2016-06-07 | Digimarc Corporation | Image management system and methods using digital watermarks |
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 |
US7197160B2 (en) * | 2001-03-05 | 2007-03-27 | Digimarc Corporation | Geographic information systems using digital watermarks |
US20020191812A1 (en) * | 2001-04-24 | 2002-12-19 | Nam-Deuk Kim | Object edge watermarking |
US7068809B2 (en) * | 2001-08-27 | 2006-06-27 | Digimarc Corporation | Segmentation in digital watermarking |
FR2829343A1 (fr) * | 2001-09-04 | 2003-03-07 | St Microelectronics Sa | Procede d'insertion de messages binaires dans une image numerique |
US7321667B2 (en) * | 2002-01-18 | 2008-01-22 | Digimarc Corporation | Data hiding through arrangement of objects |
US7046820B2 (en) * | 2002-07-16 | 2006-05-16 | Matsushita Electric Industrial Co., Ltd. | Methods for digital watermarking of images and images produced thereby |
US7194106B2 (en) | 2003-04-03 | 2007-03-20 | Digimarc Corporation | Creating electronic forms through digital watermarking |
CN1791888A (zh) * | 2003-05-21 | 2006-06-21 | 皇家飞利浦电子股份有限公司 | 用于图像的数字指纹和水印 |
TWI220363B (en) * | 2003-10-06 | 2004-08-11 | Sunplus Technology Co Ltd | Directional interpolation method and device for increasing resolution of an image |
JP4981455B2 (ja) | 2004-02-04 | 2012-07-18 | ディジマーク コーポレイション | オンチップでの電子透かしの入ったイメージ信号及び電子透かしを通じた写真によるトラベルログ |
TWI288873B (en) | 2004-02-17 | 2007-10-21 | Mitsubishi Electric Corp | Method for burying watermarks, method and device for inspecting watermarks |
DE102004022976B4 (de) * | 2004-05-10 | 2010-09-16 | Clemens Brüntrup Offset-Reproduktion GmbH | Steganographisches Druckverfahren und Verifikationssystem |
US7668334B2 (en) | 2004-07-02 | 2010-02-23 | Digimarc Corp | Conditioning imagery to better receive steganographic encoding |
FR2890517A1 (fr) * | 2005-09-08 | 2007-03-09 | Thomson Licensing Sas | Procede et dispositif d'affichage d'images |
JP4905142B2 (ja) * | 2007-01-15 | 2012-03-28 | 富士通株式会社 | 画像処理装置、印刷物および画像処理プログラム |
US8325970B2 (en) * | 2007-03-19 | 2012-12-04 | Ricoh Company, Limited | Apparatus, method, and computer product for image processing |
TWI397299B (zh) * | 2008-12-04 | 2013-05-21 | Nat Univ Chung Hsing | 利用邊緣預測誤差之高容量可回復式資訊隱藏法 |
US8488900B2 (en) | 2010-06-23 | 2013-07-16 | Digimarc Corporation | Identifying and redressing shadows in connection with digital watermarking and fingerprinting |
WO2012127611A1 (ja) * | 2011-03-22 | 2012-09-27 | 富士通株式会社 | 位置情報付加装置、位置情報付加方法及び位置情報付加用コンピュータプログラムならびに位置検出装置 |
US10474858B2 (en) | 2011-08-30 | 2019-11-12 | Digimarc Corporation | Methods of identifying barcoded items by evaluating multiple identification hypotheses, based on data from sensors including inventory sensors and ceiling-mounted cameras |
US9367770B2 (en) | 2011-08-30 | 2016-06-14 | Digimarc Corporation | Methods and arrangements for identifying objects |
US9224184B2 (en) | 2012-10-21 | 2015-12-29 | Digimarc Corporation | Methods and arrangements for identifying objects |
US9059852B2 (en) * | 2013-03-27 | 2015-06-16 | International Business Machines Corporation | Validating a user's identity utilizing information embedded in a image file |
US10371650B2 (en) * | 2016-09-22 | 2019-08-06 | Advanced Manufacturing LLC | Macrotexture map visualizing texture heterogeneity in polycrystalline parts |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB8806452D0 (en) | 1988-03-18 | 1988-04-20 | Imperial College | Digital data security system |
US5721788A (en) * | 1992-07-31 | 1998-02-24 | Corbis Corporation | Method and system for digital image signatures |
EP0987855A2 (de) | 1993-11-18 | 2000-03-22 | Digimarc Corporation | Verfahren und Vorrichtung zur Kodierung von Audiosignalen mit zusätzlichen digitalen Daten |
GB9400971D0 (en) | 1994-01-19 | 1994-03-16 | Mor Limited | Method of and apparatus for manipulating digital data |
US5848155A (en) * | 1996-09-04 | 1998-12-08 | Nec Research Institute, Inc. | Spread spectrum watermark for embedded signalling |
-
1995
- 1995-02-06 GB GBGB9502274.5A patent/GB9502274D0/en active Pending
-
1996
- 1996-02-05 CA CA002212328A patent/CA2212328A1/en not_active Abandoned
- 1996-02-05 KR KR1019970705378A patent/KR100413655B1/ko not_active IP Right Cessation
- 1996-02-05 WO PCT/GB1996/000246 patent/WO1996025005A1/en active IP Right Grant
- 1996-02-05 US US08/875,546 patent/US6181802B1/en not_active Expired - Fee Related
- 1996-02-05 DE DE69617467T patent/DE69617467T2/de not_active Expired - Fee Related
- 1996-02-05 EP EP96901891A patent/EP0878094B1/de not_active Expired - Lifetime
- 1996-02-05 JP JP8524068A patent/JPH10513324A/ja active Pending
Also Published As
Publication number | Publication date |
---|---|
KR19980701981A (ko) | 1998-06-25 |
KR100413655B1 (ko) | 2004-03-18 |
GB9502274D0 (en) | 1995-03-29 |
CA2212328A1 (en) | 1996-08-15 |
EP0878094B1 (de) | 2001-11-28 |
WO1996025005A1 (en) | 1996-08-15 |
JPH10513324A (ja) | 1998-12-15 |
US6181802B1 (en) | 2001-01-30 |
DE69617467T2 (de) | 2002-08-22 |
EP0878094A1 (de) | 1998-11-18 |
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