Patent US6496933B1 successfully refreshed from Google Patents.
US6496933B1
Expired / Lapsed
US
⏱️ 0.0 years remaining
Document authentication using a mark that is separate from document information
Assignee: Canon Marketing Japan Inc
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Filing: 1998-10-14
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Granted: 2002-12-17
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Expires: 2018-10-14
Abstract
Abstract A digital mark is derived or created for placement on a document to identify, authenticate, or verify the document's origins. Private information is received and digitized. The digitized private information is scrambled in response to the document's contents. The scrambled private information is formed into a mark. The mark is placed on or in the document, apart from the document's information.
Inventors
- 👤 Patrick O'Neal Nunally
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 12:40
CPC Classifications
H; H04; H04N; H04N1/00; H04N1/32; H04N1/32101; H04N1/32144; H04N2201/00; H04N2201/32; H04N2201/3201; H04N2201/3225; H04N2201/3233; H04N2201/3236
Claims Analysis
Total Claims: 58
Claim 1
Independent Claim
86 words
A computer-executed method of processing information of a document to create an identification mark, comprising: receiving private information; processing the private information to obtain a digital representation of the private information; processing the document information to obtain a digital representation of the document information; seeding a randomizer with the digital representation of the private information; causing the randomizer to scramble the digital representation of the private information in response to the digital representation of the document information; and producing an image of the scrambled private information.
Claim 2
Dependent Claim
86 words
A computer-executed method of processing information of a document to create an identification mark, comprising: receiving private information; processing the private information to obtain a digital representation of the private information; processing the document information to obtain a digital representation of the document information; seeding a randomizer with the digital representation of the private information; causing the randomizer to scramble the digital representation of the private information in response to the digital representation of the document information; and producing an image of the scrambled private information.
Claim 3
Dependent Claim
16 words
The method of claim 1 , wherein processing the private information includes encrypting the private information.
Claim 4
Dependent Claim
19 words
The method of claim 1 , further including placing the image of the scrambled private information on the document.
Claim 5
Dependent Claim
35 words
The method of claim 1 , wherein the image of the scrambled information has a granularity, the method further including producing a blaze by reducing the granularity of the image of the scrambled private information.
Claim 6
Dependent Claim
14 words
The method of claim 4 , further including placing the blaze on the document.
Claim 7
Dependent Claim
19 words
The method of claim 5 , wherein the blaze is placed substantially apart from the information of the document.
Claim 8
Dependent Claim
16 words
The method of claim 1 , wherein the scrambler includes a linear feedback shift register (LFSR).
Claim 9
Dependent Claim
26 words
The method of claim 7 , wherein causing the randomizer to scramble includes clocking the LFSR in response to the digital representation of the document information.
Claim 10
Dependent Claim
16 words
The method of claim 8 , wherein processing the private information includes encrypting the private information.
Claim 11
Dependent Claim
35 words
The method of claim 8 , wherein the image of the scrambled information has a granularity, the method further including producing a blaze by reducing the granularity of the image of the scrambled private information.
Claim 12
Dependent Claim
14 words
The method of claim 10 , further including placing the blaze on the document.
Claim 13
Dependent Claim
86 words
A computer-executed method of processing information of a document to create an identification mark, comprising: receiving private information; processing the private information to obtain a numeric representation of the private information; processing the document information to obtain a numeric representation of the document information; seeding a randomizer with the numeric representation of the private information; causing the randomizer to scramble the numeric representation of the private information in response to the numeric representation of the document information; and producing an image of the scrambled private information.
Claim 14
Dependent Claim
86 words
A computer-executed method of processing information of a document to create an identification mark, comprising: receiving private information; processing the private information to obtain a numeric representation of the private information; processing the document information to obtain a numeric representation of the document information; seeding a randomizer with the numeric representation of the private information; causing the randomizer to scramble the numeric representation of the private information in response to the numeric representation of the document information; and producing an image of the scrambled private information.
Claim 15
Dependent Claim
16 words
The method of claim 12 , wherein processing the private information includes encrypting the private information.
Claim 16
Dependent Claim
19 words
The method of claim 12 , further including placing the image of the scrambled private information on the document.
Claim 17
Dependent Claim
35 words
The method of claim 12 , wherein the image of the scrambled information has a granularity, the method further including producing a blaze by reducing the granularity of the image of the scrambled private information.
Claim 18
Dependent Claim
14 words
The method of claim 15 , further including placing the blaze on the document.
Claim 19
Dependent Claim
19 words
The method of claim 16 , wherein the blaze is placed substantially apart from the information of the document.
Claim 20
Dependent Claim
16 words
The method of claim 12 , wherein the scrambler includes a linear feedback shift register (LFSR).
Claim 21
Dependent Claim
26 words
The method of claim 18 , wherein causing the randomizer to scramble includes clocking the LFSR in response to the numeric representation of the document information.
Claim 22
Dependent Claim
16 words
The method of claim 19 , wherein processing the private information includes encrypting the private information.
Claim 23
Dependent Claim
35 words
The method of claim 19 , wherein the image of the scrambled information has a granularity, the method further including producing a blaze by reducing the granularity of the image of the scrambled private information.
Claim 24
Dependent Claim
14 words
The method of claim 21 , further including placing the blaze on the document.
Claim 25
Dependent Claim
97 words
A program product including a storage medium and executable instructions stored in the medium for processing information of a document to create an identification mark by: receiving private information; processing the private information to obtain a digital representation of the private information; processing the document information to obtain a digital representation of the document information; seeding a randomizer with the digital representation of the private information; causing the randomizer to scramble the digital representation of the private information in response to the digital representation of the document information; and producing an image of the scrambled private information.
Claim 26
Dependent Claim
97 words
A program product including a storage medium and executable instructions stored in the medium for processing information of a document to create an identification mark by: receiving private information; processing the private information to obtain a digital representation of the private information; processing the document information to obtain a digital representation of the document information; seeding a randomizer with the digital representation of the private information; causing the randomizer to scramble the digital representation of the private information in response to the digital representation of the document information; and producing an image of the scrambled private information.
Claim 27
Dependent Claim
16 words
The product of claim 23 , wherein processing the private information includes encrypting the private information.
Claim 28
Dependent Claim
19 words
The product of claim 23 , further including placing the image of the scrambled private information on the document.
Claim 29
Dependent Claim
35 words
The product of claim 23 , wherein the image of the scrambled information has a granularity, the method further including producing a blaze by reducing the granularity of the image of the scrambled private information.
Claim 30
Dependent Claim
14 words
The product of claim 26 , further including placing the blaze on the document.
Claim 31
Dependent Claim
19 words
The product of claim 27 , wherein the blaze is placed substantially apart from the information of the document.
Claim 32
Dependent Claim
16 words
The product of claim 23 , wherein the scrambler includes a linear feedback shift register (LFSR).
Claim 33
Dependent Claim
26 words
The product of claim 29 , wherein causing the randomizer to scramble includes clocking the LFSR in response to the digital representation of the document information.
Claim 34
Dependent Claim
16 words
The product of claim 30 , wherein processing the private information includes encrypting the private information.
Claim 35
Dependent Claim
35 words
The product of claim 30 , wherein the image of the scrambled information has a granularity, the method further including producing a blaze by reducing the granularity of the image of the scrambled private information.
Claim 36
Dependent Claim
14 words
The product of claim 32 , further including placing the blaze on the document.
Claim 37
Dependent Claim
97 words
A program product including a storage medium and executable instructions stored on the medium for processing information of a document to create an identification mark, comprising: receiving private information; processing the private information to obtain a numeric representation of the private information; processing the document information to obtain a numeric representation of the document information; seeding a randomizer with the numeric representation of the private information; causing the randomizer to scramble the numeric representation of the private information in response to the numeric representation of the document information; and producing an image of the scrambled private information.
Claim 38
Dependent Claim
97 words
A program product including a storage medium and executable instructions stored on the medium for processing information of a document to create an identification mark, comprising: receiving private information; processing the private information to obtain a numeric representation of the private information; processing the document information to obtain a numeric representation of the document information; seeding a randomizer with the numeric representation of the private information; causing the randomizer to scramble the numeric representation of the private information in response to the numeric representation of the document information; and producing an image of the scrambled private information.
Claim 39
Dependent Claim
19 words
The product of claim 34 , wherein the step of processing the private information includes encrypting the private information.
Claim 40
Dependent Claim
19 words
The product of claim 34 , further including placing the image of the scrambled private information on the document.
Claim 41
Dependent Claim
35 words
The product of claim 34 , wherein the image of the scrambled information has a granularity, the method further including producing a blaze by reducing the granularity of the image of the scrambled private information.
Claim 42
Dependent Claim
14 words
The product of claim 37 , further including placing the blaze on the document.
Claim 43
Dependent Claim
19 words
The product of claim 38 , wherein the blaze is placed substantially apart from the information of the document.
Claim 44
Dependent Claim
16 words
The product of claim 34 , wherein the scrambler includes a linear feedback shift register (LFSR).
Claim 45
Dependent Claim
26 words
The product of claim 40 , wherein causing the randomizer to scramble includes clocking the LFSR in response to the numeric representation of the document information.
Claim 46
Dependent Claim
16 words
The product of claim 41 , wherein processing the private information includes encrypting the private information.
Claim 47
Dependent Claim
35 words
The product of claim 41 , wherein the image of the scrambled information has a granularity, the method further including producing a blaze by reducing the granularity of the image of the scrambled private information.
Claim 48
Dependent Claim
14 words
The product of claim 43 , further including placing the blaze on the document.
Claim 49
Independent Claim
79 words
A device for processing information of a document to produce an identification mark in response to private information, comprising: first means for providing a first digital representation of the private information; second means for providing a second digital representation of the document information; a randomizer for scrambling the first digital representation in response to the second representation to produce a third digital representation of scrambled private information; and third means for providing an image of the third digital representation.
Claim 50
Independent Claim
79 words
A device for processing information of a document to produce an identification mark in response to private information, comprising: first means for providing a first digital representation of the private information; second means for providing a second digital representation of the document information; a randomizer for scrambling the first digital representation in response to the second representation to produce a third digital representation of scrambled private information; and third means for providing an image of the third digital representation.
Claim 51
Dependent Claim
22 words
The device of claim 45 , further including means for encrypting the private information, the first means for scrambling encrypted private information.
Claim 52
Dependent Claim
22 words
The device of claim 45 , further including fourth means for changing the granularity of the image of the third digital representation.
Claim 53
Dependent Claim
15 words
The device of claim 45 , wherein the randomizer is a linear feedback shift register.
Claim 54
Independent Claim
75 words
A device for processing information of a document to create an identification mark, comprising; first means for providing a first numeric representation of the private information; second means for providing a second numeric representation of the document information; a randomizer for scrambling the first numeric representation in response to the second numeric representation to produce a third numeric representation of scrambled, private information; and third means for providing an image of the third numeric representation.
Claim 55
Independent Claim
75 words
A device for processing information of a document to create an identification mark, comprising; first means for providing a first numeric representation of the private information; second means for providing a second numeric representation of the document information; a randomizer for scrambling the first numeric representation in response to the second numeric representation to produce a third numeric representation of scrambled, private information; and third means for providing an image of the third numeric representation.
Claim 56
Dependent Claim
22 words
The device of claim 49 , further including means for encrypting the private information, the first means for scrambling encrypted private information.
Claim 57
Dependent Claim
22 words
The device of claim 49 , further including fourth means for changing the granularity of the image of the third digital representation.
Claim 58
Dependent Claim
15 words
The device of claim 49 , wherein the randomizer is a linear feedback shift register.
References Cited (Backward Citations)
US5745604A
Cited
US5748763A
Cited
US5768426A
Cited
US6122392A
Cited
US5541993A
Cited
US5636292A
Cited
US5710834A
Cited
US5748783A
Cited
US5636292C1
Cited
US5875249A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2005-12-16 | 2006-06-17 | 2006-12-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2009-12-16 | 2010-06-17 | 2010-12-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2013-12-16 | 2014-06-17 | 2014-12-17 | $7700.00 | Window Closed / Lapsed |