US Patent No: 6,744,906

Number of patents in Portfolio can not be more than 2000

Methods and systems using multiple watermarks

2 Status Updates

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ALSO PUBLISHED AS: 20020061121
ATTORNEY / AGENT: (SPONSORED)
 

Importance

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Abstract

Two or more digital watermarks, with different characteristics, are embedded in a document. The characteristics are chosen so that the watermarks will be affected in different manners if the document is subsequently copied or reproduced. The detection process or mechanism reads two or more of the watermarks and compares their characteristics. While wear and handling may change the characteristics of the digital watermarks in a document, the relationship between the characteristics of the multiple digital watermarks in a document will nevertheless give an indication as to whether a document is an original or a copy of an original. Document wear can be independently assessed and used as an aid in interpreting the detected watermark characteristics.

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First Claim

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Patent Owner(s)

Patent OwnerAddressTotal Patents
DIGIMARC CORPORATIONBEAVERTON, OR768

International Classification(s)

  • [Classification Symbol]
  • [Patents Count]

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Gustafson, Ammon E Holly Springs, NC 32 1406
Rhoads, Geoffrey B West Linn, OR 740 34619

Cited Art

Patent Info (Count) # Cites Year
 
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4,184,700 Documents embossed with optical markings representing genuineness information 173 1978
 
LIGHT SIGNATURES IN 1901 AVE STARS LOS ANGELES CA 90067 A CORP (1)
4,476,468 Secure transaction card and verification system 153 1983
 
MARSHALL FEATURE RECOGNITION, LLC (1)
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MINOLTA CO., LTD. (1)
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4,654,867 Cellular voice and data radiotelephone system 223 1986
 
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4,820,912 Method and apparatus for checking the authenticity of documents 161 1986
 
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5,181,786 Method and apparatus for producing admission tickets 157 1990
 
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5,166,676 Identification system 176 1990
 
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5,862,218 Method and apparatus for in-camera image marking and authentication 178 1996
 
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6,246,775 Method and appartus for superposing a digital watermark and method and apparatus for detecting a digital watermark 51 1998
 
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5,488,664 Method and apparatus for protecting visual information with printed cryptographic watermarks 139 1994
 
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Other [Check patent profile for assignment information] (22)
4,528,588 Method and apparatus for marking the information content of an information carrying signal 411 1982
4,595,950 Method and apparatus for marking the information content of an information carrying signal 326 1984
4,712,103 Door lock control system 148 1985
4,944,036 Signature filter system 124 1987
4,972,476 Counterfeit proof ID card having a scrambled facial image 238 1989
4,972,471 Encoding system 288 1989
5,144,660 Securing a computer against undesired write operations to or read operations from a mass storage device 186 1989
5,212,551 Method and apparatus for adaptively superimposing bursts of texts over audio signals and decoder thereof 139 1989
5,150,409 Device for the identification of messages 120 1990
5,396,559 Anticounterfeiting method and device utilizing holograms and pseudorandom dot patterns 219 1990
5,242,217 Desk with computer work station 46 1992
5,394,274 Anti-copy system utilizing audible and inaudible protection signals 164 1993
5,351,302 Method for authenticating objects identified by images or other identifying information 177 1993
5,416,307 Currency paper verification and denomination device 88 1993
5,446,488 Television programme distribution signal having the capability to selectively block non-programme material 103 1993
5,495,581 Method and apparatus for linking a document with associated reference information using pattern matching 182 1993
5,496,071 Method of providing article identity on printed works 86 1995
5,838,458 Method and apparatus for linking designated portions of a received document image with an electronic address 164 1995
5,665,951 Customer indicia storage and utilization system 85 1996
5,664,018 Watermarking process resilient to collusion attacks 376 1996
5,938,727 Communication system and method via digital codes 285 1997
2002/0064,759 Method and system for viewing, altering and archiving digital models of dental structures and computer integrated manufacturing of physical models of dental structures 41 2000

Patent Citation Ranking

Forward Cites

Patent Info (Count) # Cites Year
 
DIGIMARC CORPORATION (38)
7,072,487 Watermark detection using adaptive color projections 12 2001
7,020,303 Feature-based watermarks and watermark detection strategies 15 2001
7,054,462 Inferring object status based on detected watermark data 66 2002
7,224,819 Integrating digital watermarks in multimedia content 79 2002
8,144,368 Automated methods for distinguishing copies from original printed objects 0 2003
7,171,020 Method for utilizing fragile watermark for enhanced security 39 2003
8,243,980 Image processing using embedded registration data to determine and compensate for geometric transformation 0 2004
8,094,869 Fragile and emerging digital watermarks 1 2004
6,993,154 Measuring digital watermark strength using error correction coding metrics 35 2004
7,539,325 Documents and methods involving multiple watermarks 43 2004
7,130,087 Methods and apparatus to produce security documents 52 2004
8,127,137 Watermark payload encryption for media including multiple watermarks 1 2005
7,978,874 Digital watermarking for workflow by tracking content or content identifiers with respect to time 5 2005
8,355,526 Digitally watermarking holograms 0 2005
7,266,217 Multiple watermarks in content 55 2006
7,995,790 Digital watermark detection using predetermined color projections 1 2006
7,974,436 Methods, apparatus and programs for generating and utilizing content signatures 2 2006
7,690,041 Associating first and second watermarks with audio or video content 3 2006
7,991,182 Methods for steganographic encoding media 0 2006
7,991,184 Apparatus to process images and video 0 2007
7,400,743 Methods to evaluate images, video and documents 24 2007
7,460,726 Integrating steganographic encoding in multimedia content 69 2007
8,006,092 Digital watermarks for checking authenticity of printed objects 0 2007
8,181,884 Machine-readable features for objects 0 2007
7,965,863 Digital watermarks as a gateway and control mechanism 2 2007
8,300,274 Process for marking substrates with information using a texture pattern and related substrates 0 2008
8,000,495 Digital watermarking systems and methods 2 2008
7,602,978 Deriving multiple identifiers from multimedia content 75 2008
7,970,166 Steganographic encoding methods and apparatus 13 2009
7,831,062 Arrangement of objects in images or graphics to convey a machine-readable signal 36 2009
8,103,879 Processing audio or video content with multiple watermark layers 0 2009
8,073,193 Methods and systems for steganographic processing 0 2009
7,986,845 Steganographic systems and methods 0 2009
8,165,341 Methods and apparatus to process imagery or audio content 0 2010
8,095,989 Associating first and second watermarks with audio or video content 1 2010
8,165,342 Color image or video processing 0 2010
8,447,067 Location-based arrangements employing mobile devices 0 2010
8,150,032 Methods for controlling rendering of images and video 0 2010
 
INTERTRUST TECHNOLOGIES CORP. (5)
7,770,016 Systems and methods for watermarking software and other media 5 2007
7,739,511 Systems and methods for watermarking software and other media 1 2007
8,140,850 Systems and methods for watermarking software and other media 0 2008
8,370,634 Systems and methods for watermarking software and other media 0 2010
8,335,924 Systems and methods for watermarking software and other media 0 2010
 
VERANCE CORPORATION (4)
7,788,684 Media monitoring, management and information system 10 2003
8,280,103 System reactions to the detection of embedded watermarks in a digital host content 0 2010
8,340,348 Methods and apparatus for thwarting watermark detection circumvention 0 2011
8,346,567 Efficient and secure forensic marking in compressed domain 0 2012
 
SCHREINER GROUP GMBH & CO. KG (3)
7,809,152 Visible authentication patterns for printed document 5 2003
7,991,198 Visible authentication patterns for printed document 0 2010
8,189,862 Visible authentication patterns for printed document 0 2011
 
INTERNATIONAL BUSINESS MACHINES CORPORATION (2)
7,496,635 System and method for securing online chat conversations 0 2005
7,657,604 System and method for securing online chat conversations 0 2008
 
NIELSEN COMPANY (US), LLC, THE (2)
7,792,771 Data classification methods and apparatus for use with data fusion 0 2009
8,234,226 Data classification methods and apparatus for use with data fusion 0 2010
 
XEROX CORPORATION (2)
6,993,655 Record and related method for storing encoded information using overt code characteristics to identify covert code characteristics 6 1999
6,970,259 Systems and methods for forgery detection and deterrence of printed documents 71 2000
 
CANON KABUSHIKI KAISHA (1)
8,115,965 Image processing apparatus, control method therefor, and storage medium 0 2008
 
KABUSHIKI KAISHA TOSHIBA (1)
6,945,455 Method and apparatus for recording content containing watermark 2 2004
 
KONINKLIJKE PHILIPS ELECTRONICS N.V. (1)
7,133,534 Copy protection via redundant watermark encoding 2 2002
 
NIELSEN MEDIA RESEARCH, INC. (1)
7,516,111 Data classification methods and apparatus for use with data fusion 2 2007
 
PITNEY BOWES INC. (1)
7,286,685 Halftone watermarking and related applications 4 2006
 
TOSHIBA TEC KABUSHIKI KAISHA (1)
7,506,801 Document audit trail system and method 0 2005
 
Other [Check patent profile for assignment information] (1)
8,451,086 Remote control signaling using audio watermarks 0 2012

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