Method and system for digital watermarking

DC CAFC

US 8,307,213 B2
Filed: 06/21/2010
Issued: 11/06/2012
Est. Priority Date: 07/02/1996
Status: Expired due to Fees

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1. An article of manufacture comprising a nontransitory medium having stored thereon instructions adapted to be executed by a processor, the instructions which, when executed, result in the process comprising:

receiving content to be watermarked and at least one digital watermark; and

watermarking the content with the received at least one digital watermark using a key comprising information describing where in the content the received at least one digital watermark is to be encoded.

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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.

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44 Claims

1. An article of manufacture comprising a nontransitory medium having stored thereon instructions adapted to be executed by a processor, the instructions which, when executed, result in the process comprising:
- receiving content to be watermarked and at least one digital watermark; and
  
  watermarking the content with the received at least one digital watermark using a key comprising information describing where in the content the received at least one digital watermark is to be encoded.
- 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 a 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 watermarked content.
  - 5. The article of manufacture of claim 1, wherein a plurality of digital watermarks is watermarked 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 plurality of digital watermarks is encoded using separate keys.
  - 8. The article of manufacture of claim 1, wherein the key is associated with at least one of a plurality of functions.
  - 9. The article of manufacture of claim 1, further comprising a 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 a computational expense to identify a key in a likely set of keys corresponding to the at least one key used 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 and/or decode the encoded at least one digital watermark.

13. A system for watermarking content comprising:
- a receiver for receiving content to be watermarked;
  
  an encoder that encodes at least one digital watermark using at least one key comprising information describing how the at least one digital watermark is to be encoded in the content; and
  
  ,a decoder that detects and/or decodes at least one digital watermark from an encoded content signal.
- View Dependent Claims (14, 15, 16, 17, 18, 19, 20, 43)
- - 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 corresponding encoded content.
  - 16. The system of claim 13, wherein said key is selected from a 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 is encoded in the content.
  - 18. The system of claim 17, wherein each of the plurality of digital watermarks is accessible using separate keys.
  - 19. The system of claim 18, wherein said separate keys are selected from a 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 where in the content the digital watermark is encoded in the content.
  - 43. The system of claim 13, wherein the decoder comprises at least one processor and detects and/or decodes at least one digital watermark from an encoded content signal separately from the encoder.

21. A process for watermarking content, the process configured to be executed by a computer, comprising:
- receiving content to he watermarked and at least one digital watermark; and
  
  watermarking the content with the received at least one digital watermark using a key comprising information describing where in the content the received at least one digital watermark is to be encoded.
- View Dependent Claims (22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 41)
- - 22. The process of claim 21, wherein said key is selected from a 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.
  - 23. The process of claim 21, wherein the encoded at least one digital watermark is associated with title, ownership, payment, distribution parameters, or uniquely identifiable information.
  - 24. The process of claim 21, wherein the encoded at least one digital watermark is integral with the watermarked content.
  - 25. The process of claim 21, wherein a plurality of digital watermarks is watermarked into one or more locations in the content.
  - 26. The process of claim 25, wherein at least one of the plurality of digital watermarks is accessible by a separate key.
  - 27. The process of claim 25, wherein each of the plurality of digital watermarks is encoded using separate keys.
  - 28. The process of claim 21, wherein the key is associated with at least one of a plurality of functions.
  - 29. The process of claim 21, further comprising generating information to identify the key used for encoding.
  - 30. The process of claim 21, further comprising generating information to reduce computational expense to identify a key in a likely set of keys corresponding to the at least one key used in the encoding step.
  - 31. The process of claim 30, wherein the step of generating information is bound by one of either heuristics or search scoring to reduce computational expense.
  - 32. The process of claim 21, further comprising detecting and/or decoding the encoded at least one digital watermark.
  - 41. The process of claim 21, wherein the key used for decoding is derived from the encoding process.

33. A process for watermarking content, the process configured to be executed by a computer, comprising:
- receiving content to be watermarked;
  
  encoding at least one digital watermark using at least one key comprising information describing how the at least one digital watermark is to be encoded in the content; and
  
  , detecting and/or decoding at least one digital watermark from an encoded content signal.
- View Dependent Claims (34, 35, 36, 37, 38, 39, 40, 42, 44)
- - 34. The process of claim 33, wherein the detected digital watermark is hashed, encrypted, time stamped or signed.
  - 35. The process of claim 33, wherein the detected digital watermark is authenticated, certified or verified by a third party to authorize a corresponding encoded content.
  - 36. The process of claim 33, wherein said key is selected from a 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.
  - 37. The process of claim 33, wherein a plurality of digital watermarks are encoded in the content.
  - 38. The process of claim 37, wherein each of the plurality of digital watermarks is accessible using separate keys.
  - 39. The process of claim 38, wherein said separate keys are selected from a 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.
  - 40. The system of claim 33, wherein the key describes where in the content the digital watermark is encoded in the content.
  - 42. The system of claim 33, wherein the key used for decoding is derived from the encoding process.
  - 44. The process of claim 33, wherein the step of detecting and/or decoding at least one digital watermark from an encoded content signal is separate from the encoding process.

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Litigation Data

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

Application Number

US12/803,168
Publication Number

US 20110010555A1
Time in Patent Office

869 Days
Field of Search

None
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

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Abstract

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44 Claims

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Method and system for digital watermarking

First Claim

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Abstract

421 Citations

44 Claims

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