Method and system for digital watermarking

DC CAFC

US 7,770,017 B2
Filed: 12/26/2007
Issued: 08/03/2010
Est. Priority Date: 07/02/1996
Status: Expired due to Fees

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1. An article of manufacture for authorized distribution of multimedia content comprising a non-transitory machine-readable medium having stored thereon instructions adapted to be executed by a processor, the instructions which, when executed, results in the processing comprising:

receiving at least one copy of content to be imperceptibly encoded with at least one digital watermark;

encoding the digital watermark into one or more locations in the content utilizing a key associated with a plurality of functions describing how the digital watermark is to be encoded anddetecting at least one digital watermark using the key.

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Abstract

A method for applying a digital watermark to a content signal is disclosed. In accordance with such a method, a watermarking key is identified. The watermarking key includes a binary sequence and information describing application of that binary sequence to the content signal. The digital watermark is then encoded within the content signal at one or more locations determined by the watermarking key.

301 Citations

33 Claims

1. An article of manufacture for authorized distribution of multimedia content comprising a non-transitory machine-readable medium having stored thereon instructions adapted to be executed by a processor, the instructions which, when executed, results in the processing comprising:
- receiving at least one copy of content to be imperceptibly encoded with at least one digital watermark;
  
  encoding the digital watermark into one or more locations in the content utilizing a key associated with a plurality of functions describing how the digital watermark is to be encoded anddetecting at least one digital watermark using the key.
- View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
- - 2. The article of manufacture of claim 1, wherein said key is selected from the group comprising:
    - a random key;
      
      a pseudo-random key;
      
      a candidate key;
      
      a watermark key;
      
      a watermarking key;
      
      a private key;
      
      a public key;
      
      a semiprivate key;
      
      a master framework key; and
      
      , a digital watermark key.
  - 3. The article of manufacture of claim 1, wherein the encoded at least one digital watermark is associated with title, ownership, payment, distribution parameters, or uniquely identifiable information.
  - 4. The article of manufacture of claim 1, wherein the encoded at least one digital watermark is integral with the encoded content.
  - 5. The article of manufacture of claim 1, wherein a plurality of digital watermarks is encoded into one or more locations in the content.
  - 6. The article of manufacture of claim 5, wherein at least one of the plurality of digital watermarks is accessible by a separate key.
  - 7. The article of manufacture of claim 5, wherein each of the pluarilty of digital watermarks is encoded using separate keys.
  - 8. The article of manufacture of claim 1, wherein at least one of the plurality of functions is upgradeable.
  - 9. The article of manufacture of claim 1, further comprising an processor to generate information to identify the key used for encoding.
  - 10. The article of manufacture of claim 1, further comprising a processor to generate information to reduce the computational expense to identify a key in a likely set of keys corresponding to the at least one key utilized in the encoding step.
  - 11. The article of manufacture of claim 10, wherein the processor is bound by one of either heuristics or search scoring to reduce computational expense.
  - 12. The article of manufacture of claim 1, further comprising a detector to detect or decoder the encoded at least one digital watermark.

13. A system for authorizing content comprising:
- a receiver to receive a potentially watermarked signal;
  
  a selector to select a portion of the potentially watermarked signal to detect a digital watermark; and
  
  ,a processor to determine the contents of the detected digital watermark with a key comprising at least one access privilege to the contents of the detected digital watermark.
- View Dependent Claims (14, 15, 16, 17, 18, 19, 20, 22)
- - 14. The system of claim 13, wherein the detected digital watermark is hashed, encrypted, time stamped or signed.
  - 15. The system of claim 13, wherein the detected digital watermark is authenticated, certified or verified by a third party to authorize the corresponding encoded content.
  - 16. The system of claim 13, wherein said key is selected from the group of keys comprising:
    - a random key;
      
      a candidate key;
      
      a pseudo-random key;
      
      a watermark key;
      
      a watermarking key;
      
      a private key;
      
      a public key;
      
      a semiprivate key;
      
      a master framework key; and
      
      , a digital watermark key.
  - 17. The system of claim 13, wherein a plurality of digital watermarks are encoded in the potentially watermarked signal.
  - 18. The system of claim 17, wherein each of the plurality of the digital watermarks is accessible using separate keys.
  - 19. The system of claim 18, wherein said separate keys are selected from the group comprising:
    - a random key;
      
      a candidate key;
      
      a pseudo-random key;
      
      a watermark key;
      
      a watermarking key;
      
      a private key;
      
      a public key;
      
      a semiprivate key;
      
      a master framework key; and
      
      , a digital watermark key.
  - 20. The system of claim 13, wherein the key describes how the digital watermark is encoded in the potentially watermarked signal.
  - 22. The system of claim 13, wherein one of the key, the digital watermark, or both the key and digital watermark comprise information to upgrade the system.

21. An article of manufacture for authorizing content comprising a non-transitory having stored thereon instructions adapted to be executed by a processor, the instructions which, when executed, results in the process comprising:
- receiving a potentially watermarked signal;
  
  selecting a portion of the potentially watermarked signal to detect a digital watermark; and
  
  ,determining the contents of the detected watermark with a key comprising at least one access privilege to the contents of the detected digital watermark.

23. A device for authorizing distribution of multimedia content comprising:
- a receiver for receiving at least one copy of content to be imperceptibly encoded with at least one digital watermark;
  
  an encoder for encoding the digital watermark into one or more locations in the content utilizing a key associated with a plurality of functions describing how the digital watermark is to be encoded; and
  
  a detector to detect or decode at least one digital watermark using a key.
- View Dependent Claims (24, 25, 26, 27, 28, 29, 30, 31, 32, 33)
- - 24. The device of claim 23, wherein said key is selected from the group comprising:
    - a random key;
      
      a pseudo-random key;
      
      a candidate key;
      
      a watermark key;
      
      a watermarking key;
      
      a private key;
      
      a public key;
      
      a semiprivate key;
      
      a master framework key; and
      
      , a digital watermark key.
  - 25. The device of claim 23, wherein the encoded at least one digital watermark is associated with title, ownership, payment, distribution parameters, or uniquely identifiable information.
  - 26. The device of claim 23, wherein the encoded at least one digital watermark is integral with the encoded content.
  - 27. The device of claim 23, wherein a plurality of digital watermarks is encoded into one or more locations in the content.
  - 28. The device of claim 27, wherein at least one of the plurality of digital watermarks is accessible by a separate key.
  - 29. The device of claim 27, wherein each of the plurality of digital watermarks is encoded using separate keys.
  - 30. The device of claim 23, wherein at least one of the plurality of functions is upgradeable.
  - 31. The device of claim 23, further comprising a processor to generate information to identify the key used for encoding.
  - 32. The device of claim 23, further comprising a processor to generate information to reduce the computational expense to identify a key in a likely set of keys corresponding to the at least one key utilized in the encoding step.
  - 33. The device of claim 32, wherein the processor is bound by one of either heuristics of search scoring to reduce computational expense.

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Litigation Data

Current Assignee
Wistaria Trading Inc.
Original Assignee
Wistaria Trading Inc.
Inventors
Cooperman, Marc S., Moskowitz, Scott A.
Primary Examiner(s)
Lanier; Benjamin E

Application Number

US12/005,230
Publication Number

US 20080133927A1
Time in Patent Office

951 Days
Field of Search

713/176
US Class Current

713/176
CPC Class Codes

G06F 21/10   Protecting distributed prog...

G06Q 30/0283   Price estimation or determi...

G06T 1/0021   Image watermarking

G06T 1/005   Robust watermarking, e.g. a...

G06T 2201/0052   Embedding of the watermark ...

G06T 2201/0061   Embedding of the watermark ...

G06T 2201/0064   for copy protection or copy...

H04K 1/00   Secret communication

H04L 2209/56   Financial cryptography, e.g...

H04L 2209/608   Watermarking

H04L 9/3247   involving digital signatures

H04N 1/32144   embedded in the image data,...

H04N 21/8358   involving watermark protect...

Method and system for digital watermarking

First Claim

4 Assignments

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Abstract

301 Citations

33 Claims

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Method and system for digital watermarking

First Claim

4 Assignments

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Litigations

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Accused Products

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Abstract

301 Citations

33 Claims

Specification

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Solutions

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