Patent JPS63139840A successfully refreshed from Google Patents.
Patent US7130087B2 successfully refreshed from Google Patents.
US7130087B2
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US
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Methods and apparatus to produce security documents
Assignee: Digimarc Corp
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Filing: 2004-06-15
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Granted: 2006-10-31
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Expires: 2024-06-15
Abstract
Abstract Security documents (e.g. passports, currency, event tickets, and the like) are encoded to convey machine-readable multi-bit binary information (e.g., a digital watermark), usually in a manner not alerting human viewers that such information is present. The documents can be provided with overt or subliminal calibration patterns. When a document incorporating such a pattern is scanned (e.g. by a photocopier), the pattern facilitates detection of the encoded information notwithstanding possible scaling or rotation of the scan data. The calibration pattern can serve as a carrier for the watermark information, or the watermark can be encoded independently. In one embodiment, the watermark and the calibration pattern are formed on the document by an intaglio process, with or without ink. A photocopier responsive to such markings can take predetermined action if reproduction of a security document is attempted. A passport processing station responsive to such markings can use the decoded binary data to access a database having information concerning the passport holder. Some such apparatuses detect both the watermark data and the presence of a visible structure characteristic of a security document (e.g., a printed seal of the document's issuer).
Inventors
- 👤 Geoffrey B. Rhoads
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 22:19
CPC Classifications
G; G07; G07F; G07F17/00; G07F17/16; G06; G06V; G06V10/00; G06V10/88; B; B42; B42D; B42D25/00; B42D25/20; B42D25/29; G06Q; G06Q20/00; G06Q20/30; G06Q20/34; G06Q20/341; G06Q20/38; G06Q20/40; G06Q20/401; G06Q20/4014; G06Q20/40145; G06T; G06T1/00; G06T1/0021; G06T1/005; G06T1/0064; G06V30/00; G06V30/40; G07C; G07C9/00; G07C9/20; G07C9/22; G07C9/25; G07C9/253; G07D; G07D7/00; G07D7/003; G07D7/0032; G07D7/0034; G07D7/004; G07F7/00; G07F7/08; G07F7/086; G07F7/10; G07F7/1008; G07F7/1016; G07F7/12; G10; G10L; G10L19/00; G10L19/018; G11; G11B; G11B20/00; G11B20/00086; G11B20/00094; G11B20/00166; G11B20/0021; G11B20/00217; G11B20/00224; G11B20/00485; G11B20/00557; G11B20/00855; G11B20/00884; G11B20/00891; H; H04; H04B; H04B1/00; H04B1/66; H04B1/665; H04N; H04N1/00; H04N1/00002; H04N1/00005; H04N1/00026; H04N1/00037; H04N1/00071; H04N1/00074; H04N1/00079; H04N1/00838; H04N1/0084; H04N1/00843; H04N1/00846; H04N1/00856; H04N1/00864; H04N1/00867; H04N1/0087; H04N1/00875; H04N1/32; H04N1/32101; H04N1/32144; H04N1/32149; H04N1/32203; H04N1/32208; H04N1/32219; H04N1/32251; H04N1/32261; H04N1/32288; H04N1/32304; H04N1/32352; H04N21/00; H04N21/20; H04N21/23; H04N21/238; H04N21/2389; H04N21/23892; H04N21/80; H04N21/83; H04N21/835; H04N21/8358; H04N5/00; H04N5/76; H04N5/91; H04N5/913; B29; B29C; B29C45/00; B29C45/14; B29C45/1418; G06T2201/00; G06T2201/005; G06T2201/0051; G06T2201/0052; G06T2201/0061; G06T2201/0065; G11B20/00876; H04N1/32106; H04N1/32122; H04N2005/91307; H04N2005/91321; H04N2005/91335; 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; H04N2201/3274; H04N2201/328; Y; Y10; Y10S; Y10S428/00; Y10S428/916; Y10T; Y10T428/00; Y10T428/24; Y10T428/24802
Claims Analysis
Total Claims: 23
Claim 1
Independent Claim
51 words
A method of producing a marked object comprising pressing a member into a substrate thereby forming a pattern in the substrate, said pattern having plural bits of binary data steganographically encoded therein, said pressing resulting in encoding of the substrate from which said plural bits of binary data can be decoded.
Claim 2
Independent Claim
51 words
A method of producing a marked object comprising pressing a member into a substrate thereby forming a pattern in the substrate, said pattern having plural bits of binary data steganographically encoded therein, said pressing resulting in encoding of the substrate from which said plural bits of binary data can be decoded.
Claim 3
Dependent Claim
14 words
The method of claim 1 further including inking the member prior to the pressing.
Claim 4
Dependent Claim
38 words
The method of claim 1 wherein said pattern additionally defines artwork that is to visible to users thereof, wherein said visible artwork and said pattern including encoding of plural bits of binary data occurs in the same pressing.
Claim 5
Dependent Claim
38 words
The method of claim 1 in which the pattern has the plural bits of binary data steganographically encoded therein, wherein a human viewer of the pattern on the substrate is not alerted that the pattern conveys said data.
Claim 6
Dependent Claim
12 words
The method of claim 1 wherein the abject comprises a security document.
Claim 7
Independent Claim
70 words
An apparatus to produce a security document, comprising: a press; and a member to form a pattern, said pattern including plural bits of binary data encoded therein, wherein said press is operable to press a substrate and said member together, and wherein pressing the substrate and said member results in textured encoding of the substrate to include the pattern from which the plural bits of binary data can be decoded.
Claim 8
Independent Claim
70 words
An apparatus to produce a security document, comprising: a press; and a member to form a pattern, said pattern including plural bits of binary data encoded therein, wherein said press is operable to press a substrate and said member together, and wherein pressing the substrate and said member results in textured encoding of the substrate to include the pattern from which the plural bits of binary data can be decoded.
Claim 9
Dependent Claim
18 words
The apparatus of claim 6 further comprising an ink disperser to ink the member prior to the pressing.
Claim 10
Dependent Claim
46 words
The apparatus of claim 6 wherein the pattern additionally defines artwork that is to be printed on the security document and visible to users thereof, wherein said printing of visible artwork and said textured encoding of plural bits of binary data occurs in the same pressing.
Claim 11
Dependent Claim
38 words
The apparatus of claim 6 in which the pattern comprises the plural bits of binary data steganographically encoded therein, wherein a human viewer of the texture on the substrate is not alerted that said pattern conveys said data.
Claim 12
Dependent Claim
61 words
A security document comprising a first surface including: a pattern provided in the first surface, the pattern provided in the first surface such that is conveys a machine-readable code, the machine-readable code being readable from optical scan data representing at least a portion of the pattern, and the machine-readable code is generally imperceptible to a human viewer of the security document.
Claim 13
Dependent Claim
61 words
A security document comprising a first surface including: a pattern provided in the first surface, the pattern provided in the first surface such that is conveys a machine-readable code, the machine-readable code being readable from optical scan data representing at least a portion of the pattern, and the machine-readable code is generally imperceptible to a human viewer of the security document.
Claim 14
Dependent Claim
11 words
The security document of claim 10 wherein the pattern comprises indentations.
Claim 15
Dependent Claim
16 words
The security document of claim 11 wherein the indentations are steganographically provided in the first surface.
Claim 16
Dependent Claim
20 words
The security document of claim 11 wherein the indentations are provided to form at least part of a paper watermark.
Claim 17
Dependent Claim
19 words
The security document of claim 10 wherein the pattern is provided through a surface topology of the first surface.
Claim 18
Dependent Claim
13 words
The security document of claim 10 wherein the pattern comprises a paper watermark.
Claim 19
Dependent Claim
18 words
The security document of claim 10 wherein the machine-readable code comprises plural bits of binary data encoded therein.
Claim 20
Dependent Claim
24 words
The security document of claim 10 wherein the pattern is provided through pressing a member into the first surface to thereby form the pattern.
Claim 21
Dependent Claim
42 words
The security document of claim 17 wherein said pattern comprises plural bits of binary data steganographically conveyed through the machine-readable code, and wherein the pressing results in patterning the first surface from which the plural bits of binary data can be decoded.
Claim 22
Dependent Claim
12 words
The security document of claim 10 wherein the document comprises legal tender.
Claim 23
Dependent Claim
11 words
The security document of claim 10 wherein the pattern comprises micro-indentations.
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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) | 2009-10-30 | 2010-05-01 | 2010-10-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2013-10-30 | 2014-05-01 | 2014-10-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2017-10-30 | 2018-05-01 | 2018-10-31 | $7700.00 | Window Closed / Lapsed |