Patent US5822436A successfully refreshed from Google Patents.
US5822436A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Photographic products and methods employing embedded information
Assignee: Digimarc Corp
•
Filing: 1996-04-25
•
Granted: 1998-10-13
•
Expires: 2016-04-25
Abstract
Abstract Technology is now available permitting consumers to make amateur-or even professional-grade copies of photographs. For wedding and portrait photographers, in particular, the business of making duplications is fundamental to their livelihoods. The threat of such copying is felt strongly. To redress these concerns, a machine-readable marking is provided on emulsion films, photographic papers, and the like. The marking encodes digital information, yet is essentially imperceptible to the human eye. A photographic duplication kiosk can be constructed to read this embedded information and, if warranted by the embedded information, to disable the kiosk's copying function. An exemplary embodiment pre-exposes the photographic product with a spatial domain representation of the embedded data, and may include rotationally symmetric one-or two-dimensional patterns. Numerous other implementations are similarly practical.
Inventors
- 👤 Geoffrey B. Rhoads
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 05:40
CPC Classifications
G; G06; G06T; G06T1/00; G06T1/0021; G06T1/005; G06T1/0064; G06F; G06F21/00; G06F21/10; G06F21/16; G06F21/30; G06F21/44; G06F21/445; G06K; G06K19/00; G06K19/06; G06K19/06009; G06K19/06037; G06K19/06046; G06K19/08; G06K19/10; G06K19/14; G06K7/00; G06K7/10; G06K7/14; G06K7/1404; G06K7/1408; G06K7/1417; G06K7/1439; G06K7/1447; G06Q; G06Q20/00; G06Q20/30; G06Q20/306; G06Q20/34; G06Q20/341; G06Q20/38; G06Q20/40; G06Q20/401; G06Q20/4014; G06Q20/40145; G07; G07D; G07D7/00; G07D7/003; G07D7/0034; G07D7/004; G07F; G07F17/00; G07F17/16; G07F7/00; G07F7/08; G07F7/086; G07F7/10; G07F7/1008; G10; G10L; G10L19/00; G10L19/018; H; H04; H04L; H04L63/00; H04L63/04; H04L63/0428; H04L9/00; H04L9/06; H04L9/065; H04L9/0656; H04L9/0662; H04M; H04M1/00; H04M1/66; 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; H04N1/00875; H04N1/32; H04N1/32101; H04N1/32144; H04N1/32149; H04N1/32154; H04N1/3216; H04N1/32203; H04N1/32208; H04N1/32251; H04N1/32288; H04N1/32352; H04W; H04W12/00; H04W12/06; H04W12/12; H04W12/126; G06F2221/00; G06F2221/21; G06F2221/2129; G06K2019/06215; G06K2019/06253; G06T2201/00; G06T2201/005; G06T2201/0081; G11; G11B; G11B20/00; G11B20/00086; G11B20/00884; G11B20/00891; H04M3/00; H04M3/38; H04N2201/00; H04N2201/0077; H04N2201/0091; H04N2201/32; H04N2201/3201; H04N2201/3204; H04N2201/3205; H04N2201/3225; H04N2201/3233; H04N2201/3269; H04N2201/327; H04N2201/3274; H04W84/00; H04W84/02; H04W84/04; H04W84/042; H04W88/00; H04W88/02; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24802; Y10T428/24851; Y10T428/24868; Y10T428/24876
Claims Analysis
Total Claims: 49
Claim 1
Independent Claim
40 words
A photographic emulsion paper for exposing and developing to produce an image thereon, characterized by auxiliary information signal encoded therein, said signal being encoded as a patterned physical characteristic coextensive with said paper, wherein said characteristic is a chemical characteristic.
Claim 2
Dependent Claim
40 words
A photographic emulsion paper for exposing and developing to produce an image thereon, characterized by auxiliary information signal encoded therein, said signal being encoded as a patterned physical characteristic coextensive with said paper, wherein said characteristic is a chemical characteristic.
Claim 3
Dependent Claim
52 words
A photographic emulsion paper for exposing and developing to produce an image thereon, characterized by an auxiliary information signal encoded therein, said signal being encoded as a patterned physical characteristic coextensive with said paper, wherein said characteristic results in a substantially human-imperceptible optical patterning of said paper after said paper is developed.
Claim 4
Dependent Claim
52 words
A photographic emulsion paper for exposing and developing to produce an image thereon, characterized by an auxiliary information signal encoded therein, said signal being encoded as a patterned physical characteristic coextensive with said paper, wherein said characteristic results in a substantially human-imperceptible optical patterning of said paper after said paper is developed.
Claim 5
Dependent Claim
44 words
A photographic emulsion paper for exposing and developing to produce an image thereon, characterized by an auxiliary information signal encoded therein, said signal being encoded as a patterned physical characteristic coextensive with said paper, wherein the auxiliary information signal is a copy control signal.
Claim 6
Dependent Claim
44 words
A photographic emulsion paper for exposing and developing to produce an image thereon, characterized by an auxiliary information signal encoded therein, said signal being encoded as a patterned physical characteristic coextensive with said paper, wherein the auxiliary information signal is a copy control signal.
Claim 7
Dependent Claim
90 words
A printing kiosk comprising: a photographic emulsion paper according to claim 3, exposed and developed to convey an image; a lens for imaging said paper onto an opto-electronic detector; a print-writing device for producing a print in accordance with image data gathered by said detector from said paper; a memory for receiving data from the opto-electronic detector; and a processor for processing data in the memory to detect said copy control signal, and for interrupting a usual print-making process of said print-writing device in response to said auxiliary information signal.
Claim 8
Dependent Claim
30 words
A blank photographic paper having an emulsion coating thereon suitable for exposing and developing to produce an image thereon, characterized by a binary data signal encoded in said emulsion coating.
Claim 9
Dependent Claim
30 words
A blank photographic paper having an emulsion coating thereon suitable for exposing and developing to produce an image thereon, characterized by a binary data signal encoded in said emulsion coating.
Claim 10
Dependent Claim
13 words
The paper of claim 5 in which said data signal is steganographically encoded.
Claim 11
Dependent Claim
16 words
The paper of claim 5 in which said binary data signal comprises a plurality of bits.
Claim 12
Dependent Claim
30 words
The paper of claim 5 in which said binary data signal is encoded in the form of a chemical characteristic that varies as a function of location across said paper.
Claim 13
Dependent Claim
19 words
The paper of claim 8 in which said chemical characteristic varies due to an optical exposure of said coating.
Claim 14
Independent Claim
53 words
A method of processing a blank photographic paper during manufacture and prior to exposure by an end user thereof, comprising: generating a pattern having an auxiliary information signal steganographically encoded therein; and encoding said paper in accordance with said pattern, said encoding not impairing subsequent use of the paper by said end user.
Claim 15
Independent Claim
53 words
A method of processing a blank photographic paper during manufacture and prior to exposure by an end user thereof, comprising: generating a pattern having an auxiliary information signal steganographically encoded therein; and encoding said paper in accordance with said pattern, said encoding not impairing subsequent use of the paper by said end user.
Claim 16
Dependent Claim
16 words
The method of claim 10 in which the auxiliary information signal is a copy control signal.
Claim 17
Dependent Claim
14 words
The method of claim 10 in which said auxiliary information signal comprises binary data.
Claim 18
Dependent Claim
34 words
The method of claim 12 in which the generating includes processing the binary data in accordance with a pseudo-random noise signal, wherein the pattern is a function, in part, of said pseudo-random noise signal.
Claim 19
Dependent Claim
20 words
The method of claim 10 in which the encoding of the paper results in a patterning coextensive with the paper.
Claim 20
Dependent Claim
17 words
The method of claim 10 in which said encoding comprises processing a chemical coating on said paper.
Claim 21
Dependent Claim
28 words
The method of claim 15 which said processing comprises exposing an emulsion coating on said paper with an optical representation of said pattern at a predetermined exposure level.
Claim 22
Dependent Claim
52 words
The method of claim 10 which includes encoding a calibration signal together with said auxiliary information signal, said calibration signal having known properties and providing known data useful in decoding the auxiliary information signal from said paper, said encoded calibration signal being substantially imperceptible to a human viewer of the encoded paper.
Claim 23
Dependent Claim
11 words
A photographic paper produced according to the method of claim 10.
Claim 24
Independent Claim
81 words
A method of processing a photographic paper during manufacture and prior to exposure by an end user thereof, comprising: generating a pattern representing an auxiliary information signal; encoding said paper in accordance with said pattern, said encoding not impairing subsequent use of the paper by said end user, said encoding including processing a chemical coating on said paper, wherein a substantially human-imperceptible pattern is formed thereon when the paper is thereafter developed, said encoded pattern being substantially coextensive with said paper.
Claim 25
Independent Claim
81 words
A method of processing a photographic paper during manufacture and prior to exposure by an end user thereof, comprising: generating a pattern representing an auxiliary information signal; encoding said paper in accordance with said pattern, said encoding not impairing subsequent use of the paper by said end user, said encoding including processing a chemical coating on said paper, wherein a substantially human-imperceptible pattern is formed thereon when the paper is thereafter developed, said encoded pattern being substantially coextensive with said paper.
Claim 26
Dependent Claim
39 words
The method of claim 19 in which the encoding includes encoding the auxiliary information signal redundantly across the paper through said pattern, thereby allowing detection of the auxiliary information signal from first and second non-overlapping regions of said paper.
Claim 27
Independent Claim
68 words
A method of producing a photographic emulsion article having an auxiliary information signal encoded therewith, comprising: (a) providing a substrate; (b) applying a layer of material over said substrate; (c) processing said layer of material to form a pattern therein, said pattern being coextensive with the article, said pattern having an auxiliary information signal steganographically encoded therein; and (d) thereafter, processing said article to carry human-perceptible information thereon.
Claim 28
Independent Claim
68 words
A method of producing a photographic emulsion article having an auxiliary information signal encoded therewith, comprising: (a) providing a substrate; (b) applying a layer of material over said substrate; (c) processing said layer of material to form a pattern therein, said pattern being coextensive with the article, said pattern having an auxiliary information signal steganographically encoded therein; and (d) thereafter, processing said article to carry human-perceptible information thereon.
Claim 29
Dependent Claim
19 words
The method of claim 21 in which said layer of material is substantially transparent to a human viewer thereof.
Claim 30
Dependent Claim
24 words
The method of claim 21 in which step (c) includes changing chemical characteristics of said material on a localized basis to effect said patterning.
Claim 31
Dependent Claim
24 words
The method of claim 21 in which step (c) includes changing optical transmissivity of said material on a localized basis to effect said patterning.
Claim 32
Dependent Claim
17 words
The method of claim 21 in which step (d) includes performing a printing process on said article.
Claim 33
Dependent Claim
19 words
The method of claim 21 in which step (d) includes exposing said article to generate a photographic image thereon.
Claim 34
Dependent Claim
13 words
The method of claim 21 in which said layer of material is photoreactive.
Claim 35
Dependent Claim
17 words
The method of claim 21 which includes exposing said layer of material to form said pattern therein.
Claim 36
Dependent Claim
19 words
The method of claim 21 in which said processing results in formation of only said substantially imperceptible pattern therein.
Claim 37
Dependent Claim
16 words
The method of claim 21 in which said auxiliary information signal is a binary information signal.
Claim 38
Dependent Claim
12 words
An exposed photographic emulsion paper produced by the method of claim 21.
Claim 39
Dependent Claim
84 words
In a photo-duplication kiosk including a lens for imaging a customer-provided photograph onto an opto-electronic detector for producing image data, and a print-writing device for producing a print in accordance with said image data , an improvement comprising: a memory for receiving said data from the opto-electronic detector; and a processor for processing aid data in the memory to detect the presence of a copy control signal steganographically encoded therein, and for interrupting a usual print-making process of said print-writing device in response thereto.
Claim 40
Dependent Claim
84 words
In a photo-duplication kiosk including a lens for imaging a customer-provided photograph onto an opto-electronic detector for producing image data, and a print-writing device for producing a print in accordance with said image data , an improvement comprising: a memory for receiving said data from the opto-electronic detector; and a processor for processing aid data in the memory to detect the presence of a copy control signal steganographically encoded therein, and for interrupting a usual print-making process of said print-writing device in response thereto.
Claim 41
Dependent Claim
69 words
In a photo-duplication kiosk including a lens for imaging a customer-provided photograph onto an opto-electronic detector for producing image data, and a print-writing device for producing a print in accordance with said image data , an improved method of operation including: analyzing, said image data to discern a control signal steganographically embedded therein; and interrupting a usual print-making process of said print-writing device in response to said control signal.
Claim 42
Dependent Claim
69 words
In a photo-duplication kiosk including a lens for imaging a customer-provided photograph onto an opto-electronic detector for producing image data, and a print-writing device for producing a print in accordance with said image data , an improved method of operation including: analyzing, said image data to discern a control signal steganographically embedded therein; and interrupting a usual print-making process of said print-writing device in response to said control signal.
Claim 43
Dependent Claim
15 words
The method of claim 33 in which said control signal comprises a plurality of bits.
Claim 44
Dependent Claim
27 words
The method of claim 33 which includes discerning the control signal from the customer-provided photograph notwithstanding a rotational misalignment of said photograph from a correct alignment thereof.
Claim 45
Dependent Claim
19 words
The method of claim 35 in which said analyzing includes performing a plurality of statistical analyses on said data.
Claim 46
Dependent Claim
19 words
The method of claim 33 in which said analyzing includes performing a plurality of statistical analyses on said data.
Claim 47
Dependent Claim
22 words
The method of claim 33 in which said analyzing includes a spectral analysis of the image data to discern spectral components thereof.
Claim 48
Dependent Claim
19 words
The method of claim 33 in which said analyzing includes transforming the image data to a spatial frequency domain.
Claim 49
Dependent Claim
16 words
The method of claim 39 which further includes identifying a pattern in said frequency domain data.
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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) | 2001-10-12 | 2002-04-13 | 2002-10-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2005-10-12 | 2006-04-13 | 2006-10-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2009-10-12 | 2010-04-13 | 2010-10-13 | $7700.00 | Window Closed / Lapsed |