Patent US6608911B2 successfully refreshed from Google Patents.
US6608911B2
Expired / Lapsed
US
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Digitally watermaking holograms for use with smart cards
Assignee: Digimarc Corp
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Filing: 2001-08-06
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Granted: 2003-08-19
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Expires: 2021-08-06
Abstract
Abstract The present invention relates to digital watermarks integrated into holograms, watermarked hologram structures, and related applications as an authentication technique. One method creates a watermark image, and then embeds the watermark image into a holographic structure. The holographic structure is carried by a smart card. The smart card includes additional information. In one embodiment, the digital watermark includes information bits, and these information bits are used to authenticate the hologram, or the smart card. In another embodiment, the watermark's information bits are compared with the additional information carried by the smart card. The result of the comparison is used to authenticate the smart card or the hologram.
Inventors
- 👤 Neil Lofgren
- 👤 Stephen K. Decker
- 👤 Hugh L. Brunk
- 👤 J. Scott Carr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 12:15
CPC Classifications
G; G03; G03H; G03H1/00; G03H1/04; G03H1/0402; G03H1/041; G03H1/0005; G03H1/0011; G03H1/08; G06; G06K; G06K19/00; G06K19/06; G06K19/08; G06K19/10; G06K19/16; G06Q; G06Q20/00; G06Q20/30; G06Q20/34; G06Q20/341; G06T; G06T1/00; G06T1/0021; G07; G07D; G07D7/00; G07D7/003; G07D7/0032; G07D7/0034; G07F; G07F7/00; G07F7/08; G07F7/086; G07F7/12; H; H04; H04N; H04N1/00; H04N1/00127; H04N1/00249; G03H1/02; G03H1/024; G03H1/0244; G03H2001/0016; G03H2001/0022; G03H2210/00; G03H2210/40; G03H2210/44; G03H2210/441; H04N2201/00; H04N2201/32; H04N2201/3201; H04N2201/3212; H04N2201/3215; H04N2201/3225; H04N2201/3233; H04N2201/328; H04N2201/3281
Claims Analysis
Total Claims: 26
Claim 1
Independent Claim
110 words
A method to authenticate a smart card, the smart card including electronic circuitry including first information stored therein, said method comprising the steps of: extracting second information from a digital watermark, the digital watermark being hidden in an optically variable device which is carried by the smart card, the optically variable device comprising the digital watermark embedded within a holographic structure, wherein e digital watermark second information comprises at least a spread spectrum modulated message; extracting the first information stored in the electronic circuitry of the smart card; and comparing at least the extracted smart card first information and the digital watermark message to determine authenticity of the smart card.
Claim 2
Independent Claim
110 words
A method to authenticate a smart card, the smart card including electronic circuitry including first information stored therein, said method comprising the steps of: extracting second information from a digital watermark, the digital watermark being hidden in an optically variable device which is carried by the smart card, the optically variable device comprising the digital watermark embedded within a holographic structure, wherein e digital watermark second information comprises at least a spread spectrum modulated message; extracting the first information stored in the electronic circuitry of the smart card; and comparing at least the extracted smart card first information and the digital watermark message to determine authenticity of the smart card.
Claim 3
Dependent Claim
18 words
The method according to claim 1 , wherein the extracted digital watermark information is compared with predetermined information.
Claim 4
Dependent Claim
27 words
The method according to claim 2 , wherein the extracted digital watermark information comprises at least one of a time stamp, key, predetermined identifier, and authentication code.
Claim 5
Dependent Claim
36 words
The method of claim 1 , wherein the watermark is hidden in an image that is embedded in the holographic structure, the image comprising at least one of a graphic, background, picture, photograph, text, and logo.
Claim 6
Independent Claim
96 words
A method to authenticate a smart card comprising the steps of: extracting information from a digital watermark, the digital watermark being embedded in an optically variable device which is carried by the smart card, the optically variable device comprising a watermarked image embedded within a holographic structure, wherein at least some of the digital watermark information is redundantly embedded within the image; and extracting information stored in circuitry of the smart card; and comparing at least some of the decoded digital watermark information with the extracted smart card information to determine authenticity of the smart card.
Claim 7
Independent Claim
96 words
A method to authenticate a smart card comprising the steps of: extracting information from a digital watermark, the digital watermark being embedded in an optically variable device which is carried by the smart card, the optically variable device comprising a watermarked image embedded within a holographic structure, wherein at least some of the digital watermark information is redundantly embedded within the image; and extracting information stored in circuitry of the smart card; and comparing at least some of the decoded digital watermark information with the extracted smart card information to determine authenticity of the smart card.
Claim 8
Dependent Claim
23 words
The method according to claim 5 , wherein authentication is determined when the extracted digital watermark information matches the extracted smart card information.
Claim 9
Dependent Claim
29 words
The method according to claim 5 , wherein authentication is determined when the extracted digital watermark information relates to the extracted smart card information in a predetermined mathematical manner.
Claim 10
Dependent Claim
22 words
The method of claim 5 , wherein the image comprises at least one of a graphic, background, picture, photograph, text, and logo.
Claim 11
Dependent Claim
99 words
A reader operable to decode a watermark from a watermarked hologram, and to extract information from a smart card, said reader comprising: a watermark decoder for detecting a watermark signal in image scan data corresponding to the watermark d hologram, the smart card carrying the watermarked hologram; a message decoder for extracting a message from the watermark signal, wherein the message comprises at least some spread spectrum modulated binary bits; a reader to extract information from the smart card; and a comparator to compare the message and the extracted smart card information to determine authenticity of the smart card.
Claim 12
Dependent Claim
99 words
A reader operable to decode a watermark from a watermarked hologram, and to extract information from a smart card, said reader comprising: a watermark decoder for detecting a watermark signal in image scan data corresponding to the watermark d hologram, the smart card carrying the watermarked hologram; a message decoder for extracting a message from the watermark signal, wherein the message comprises at least some spread spectrum modulated binary bits; a reader to extract information from the smart card; and a comparator to compare the message and the extracted smart card information to determine authenticity of the smart card.
Claim 13
Dependent Claim
29 words
The reader according to claim 9 , wherein the smart card comprises at least one of a credit card, identification document, RFID card, integrated circuit card, and magnetic-strip card.
Claim 14
Independent Claim
108 words
A method to authenticate a smart card including a digitally watermarked hologram, said digital watermark comprising at least a first data set, said method comprising the steps of: presenting the smart car to a reader, the smart card including electronic circuitry comprising a second data set; in the reader: decoding the firs data set, indexing a database which is remote from the reader with at least some of the first data set, and obtaining authenticating information that is associated with the at least some of the first data set; and decoding the second data set; authenticating the smart and based at least in part on the authenticating information.
Claim 15
Independent Claim
108 words
A method to authenticate a smart card including a digitally watermarked hologram, said digital watermark comprising at least a first data set, said method comprising the steps of: presenting the smart car to a reader, the smart card including electronic circuitry comprising a second data set; in the reader: decoding the firs data set, indexing a database which is remote from the reader with at least some of the first data set, and obtaining authenticating information that is associated with the at least some of the first data set; and decoding the second data set; authenticating the smart and based at least in part on the authenticating information.
Claim 16
Dependent Claim
29 words
The method according to claim 11 , wherein the smart card comprises at least one of a credit card, identification document, RFID card, integrated circuit card, and magnetic-strip card.
Claim 17
Dependent Claim
21 words
The method according to claim 12 , wherein said authentication step comprises comparing the authenticating information and the second data set.
Claim 18
Dependent Claim
21 words
The method according to claim 12 , wherein said authentication step comprises comparing the second data set to a predetermined value.
Claim 19
Dependent Claim
25 words
The method according to claim 12 , further comprising the step of comparing the authentication information with information from a bearer of the smart card.
Claim 20
Dependent Claim
17 words
The method of claim 12 , wherein the first data set is redundantly embedded in the hologram.
Claim 21
Dependent Claim
20 words
The method of claim 12 , wherein the first data set comprises a message including a spread spectrum modulated component.
Claim 22
Dependent Claim
28 words
The method according to claim 11 , wherein the reader comprises a first unit to read a digital watermark, and a second unit to read the smart card.
Claim 23
Dependent Claim
143 words
A reader operable to decode a digital watermark from a digitally watermarked hologram, the digital watermark including at least: i) an orientation signal which is to be used to facilitate e-alignment of image data, and ii) a message, wherein a smart card carries the digitally watermarked hologram, said reader being operable to extract information from electronic circuitry included in the smart card, said reader comprising: a digital watermark detector for detecting the digital watermark orientation signal from image scan data corresponding to the digitally watermarked hologram, said detector re-aligning the scanned image based at least in part by the orientation signal; a digital watermark decoder for reading the digital watermark message; a reader unit to extract information from the electronic circuitry of the smart card; and a comparator to compare the extracted information and the message to determine authenticity of the smart card.
Claim 24
Dependent Claim
143 words
A reader operable to decode a digital watermark from a digitally watermarked hologram, the digital watermark including at least: i) an orientation signal which is to be used to facilitate e-alignment of image data, and ii) a message, wherein a smart card carries the digitally watermarked hologram, said reader being operable to extract information from electronic circuitry included in the smart card, said reader comprising: a digital watermark detector for detecting the digital watermark orientation signal from image scan data corresponding to the digitally watermarked hologram, said detector re-aligning the scanned image based at least in part by the orientation signal; a digital watermark decoder for reading the digital watermark message; a reader unit to extract information from the electronic circuitry of the smart card; and a comparator to compare the extracted information and the message to determine authenticity of the smart card.
Claim 25
Dependent Claim
15 words
The reader of claim 19 , wherein the message is redundantly embedded in the hologram.
Claim 26
Dependent Claim
17 words
The reader of claim 19 , wherein the message comprises at least a spread spectrum modulated component.
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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) | 2006-08-18 | 2007-02-17 | 2007-08-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2010-08-18 | 2011-02-17 | 2011-08-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2014-08-18 | 2015-02-17 | 2015-08-19 | $7700.00 | Window Closed / Lapsed |