US6574350B1
Expired / Lapsed
US
⏱️ 0.0 years remaining
Digital watermarking employing both frail and robust watermarks
Assignee: Digimarc Corp
•
Filing: 2000-02-03
•
Granted: 2003-06-03
•
Expires: 2020-02-03
Abstract
Abstract Image, video, or audio data is encoded with both a frail and a robust watermark. The two watermarks respond differently to different forms of processing (e.g., copying the object may render the frail watermark unreadable), permitting an original object to be distinguished from a processed object. Appropriate action can then taken in response thereto.
Inventors
- 👤 Geoffrey B. Rhoads
- 👤 Ammon E. Gustafson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 10:19
CPC Classifications
G; G06; G06Q; G06Q30/00; G06Q30/02; B; B42; B42D; B42D25/00; B42D25/20; B42D25/29; G06T; G06T1/00; G06T1/0021; G06T1/005; G06T1/0071; G06T7/00; G06T7/0002; G07; G07C; G07C9/00; G07C9/20; G07C9/22; G07C9/25; G07C9/253; G07D; G07D7/00; G07D7/003; G07D7/0034; G07D7/004; G07D7/20; G07F; G07F7/00; G07F7/08; G07F7/086; G07F7/12; G10; G10L; G10L19/00; G10L19/018; H; H04; H04N; H04N1/00; H04N1/00002; H04N1/00005; H04N1/00026; H04N1/00037; H04N1/00092; H04N1/00838; H04N1/0084; H04N1/00843; H04N1/00846; H04N1/00856; H04N1/00875; H04N1/00962; H04N1/00973; H04N1/32; H04N1/32101; H04N1/32144; H04N1/32149; H04N1/32203; H04N1/32219; H04N1/32229; H04N1/32261; H04N1/32288; H04N1/32304; H04N1/32309; H04N1/3232; H04N1/32331; B29; B29C; B29C45/00; B29C45/14; B29C45/1418; G06T2201/00; G06T2201/005; G06T2201/0052; G06T2207/00; G06T2207/30; G06T2207/30108; G06T2207/30144; G07D7/06; G07D7/12; G11; G11B; G11B20/00; G11B20/00086; H04N2201/00; H04N2201/32; H04N2201/3201; H04N2201/3204; H04N2201/3205; H04N2201/3207; H04N2201/3225; H04N2201/3226; H04N2201/3233; H04N2201/3239; H04N2201/3269; H04N2201/327; H04N2201/3271
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
86 words
A method comprising: receiving a set of sampled data; analyzing said set of sampled data for first and second watermark information, the first watermark information being encoded relatively strongly and the second watermark information being encoded relatively weakly; and based on a result of said analysis, determining whether the set of sampled data corresponds to an original, or a degraded reproduction of an original, wherein the presence of the first but not the second watermark information indicates a conversion that has impaired the second watermark information.
Claim 2
Independent Claim
86 words
A method comprising: receiving a set of sampled data; analyzing said set of sampled data for first and second watermark information, the first watermark information being encoded relatively strongly and the second watermark information being encoded relatively weakly; and based on a result of said analysis, determining whether the set of sampled data corresponds to an original, or a degraded reproduction of an original, wherein the presence of the first but not the second watermark information indicates a conversion that has impaired the second watermark information.
Claim 3
Dependent Claim
22 words
The method of claim 1 , wherein at least the first watermark is effected by slight alterations to the sampled data's color.
Claim 4
Dependent Claim
15 words
The method of claim 2 , wherein the conversion comprises at least scanning and reprinting.
Claim 5
Independent Claim
55 words
A method comprising: receiving a set of sampled data; analyzing said set of sampled data for first and second watermarks; determining, based on characteristics of the two watermarks, whether the set of sampled data corresponds to an original, or a degraded reproduction of an original; and controlling operation of equipment in accordance with said determination.
Claim 6
Independent Claim
55 words
A method comprising: receiving a set of sampled data; analyzing said set of sampled data for first and second watermarks; determining, based on characteristics of the two watermarks, whether the set of sampled data corresponds to an original, or a degraded reproduction of an original; and controlling operation of equipment in accordance with said determination.
Claim 7
Dependent Claim
18 words
The method of claim 4 that includes disabling an operation of said equipment in accordance with said determination.
Claim 8
Dependent Claim
22 words
The method of claim 5 that includes disabling said operation if one of said watermarks is detected and the other is not.
Claim 9
Dependent Claim
21 words
A storage medium having computer instructions stored thereon causing a computer programed thereby to perform the method of claim 4 .
Claim 10
Independent Claim
70 words
A method comprising: receiving a set of sampled data; analyzing said set of sampled data for first and second watermarks—one relatively frail and one relatively robust; and determining, based on a result of said analysis, whether the set of sampled data corresponds to an original, or a degraded reproduction of an original, wherein the set of sampled data corresponds to an original only if both of said watermarks are detected.
Claim 11
Independent Claim
70 words
A method comprising: receiving a set of sampled data; analyzing said set of sampled data for first and second watermarks—one relatively frail and one relatively robust; and determining, based on a result of said analysis, whether the set of sampled data corresponds to an original, or a degraded reproduction of an original, wherein the set of sampled data corresponds to an original only if both of said watermarks are detected.
Claim 12
Dependent Claim
22 words
The method of claim 8 , wherein at least the first watermark is effected by slight alterations to the data sample's color.
Claim 13
Dependent Claim
20 words
The method of claim 9 , wherein a degraded original results from at least scanning and reprinting of an original.
Claim 14
Independent Claim
80 words
A method comprising: receiving a set of data including a first digital watermark and a second digital watermark; analyzing the data set to determine whether the first digital watermark is present in the data set and to determine a condition of the second digital watermark; and based on the presence of the first digital watermark and the condition of the second digital watermark, determining whether the data set corresponds to an original, or to a degraded reproduction of an original.
Claim 15
Independent Claim
80 words
A method comprising: receiving a set of data including a first digital watermark and a second digital watermark; analyzing the data set to determine whether the first digital watermark is present in the data set and to determine a condition of the second digital watermark; and based on the presence of the first digital watermark and the condition of the second digital watermark, determining whether the data set corresponds to an original, or to a degraded reproduction of an original.
Claim 16
Dependent Claim
45 words
The method of claim 11 , wherein the sampled data corresponds to a degraded reproduction of an original when the first digital watermark is present in the data set, and the condition of the second digital watermark is at least one of degraded and undetectable.
Claim 17
Independent Claim
134 words
A method of receiving and anaylzing sets of sampled data to differentiate copies of an original document from the original document, the document containing a first digital watermark including a first set of characteristics and a second digital watermark including a second set of characteristics, said method comprising the steps of: receiving a first set of sampled data including the first and second watermarks from the original document and comparing the resultant values to generate a first set of results; receiving a second set of sampled data including first and second watermarks from a copy of the original document and comparing the resulting values to generate a second set of results; and analyzing differences between the first and second sets of results to differentiate the original document from the copy of the original document.
Claim 18
Independent Claim
134 words
A method of receiving and anaylzing sets of sampled data to differentiate copies of an original document from the original document, the document containing a first digital watermark including a first set of characteristics and a second digital watermark including a second set of characteristics, said method comprising the steps of: receiving a first set of sampled data including the first and second watermarks from the original document and comparing the resultant values to generate a first set of results; receiving a second set of sampled data including first and second watermarks from a copy of the original document and comparing the resulting values to generate a second set of results; and analyzing differences between the first and second sets of results to differentiate the original document from the copy of the original document.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2006-06-02 | 2006-12-02 | 2007-06-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2010-06-02 | 2010-12-02 | 2011-06-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2014-06-02 | 2014-12-02 | 2015-06-03 | $7700.00 | Window Closed / Lapsed |