US5801856A
Expired / Lapsed
US
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Secure photographic systems
Assignee: Eastman Kodak Co
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Filing: 1996-07-24
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Granted: 1998-09-01
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Expires: 2016-07-24
Abstract
Abstract A secure photographic system includes: a photographic film bearing an image and indicia representing a desired digital image security feature relating to the image; a scanner for scanning the image on the film to generate a digital image; means for detecting the indicia on the film to generate a security feature control signal; and digital image processing means responsive to the security feature control signal and the digital image for applying the desired digital image security feature to the digital image.
Inventors
- 👤 Omid A. Moghadam
- 👤 Majid Rabbani
- 👤 Kevin A. Townsend
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 12:45
CPC Classifications
H; H04; H04N; H04N1/00; H04N1/32; H04N1/32101; H04N1/32128; G; G03; G03C; G03C11/00; G03C11/02; H04N1/44; H04N1/448; H04N1/4486; H04N2201/00; H04N2201/32; H04N2201/3201; H04N2201/3225; H04N2201/3233; H04N2201/3236
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
101 words
A secure photographic system, comprising: a. a photographic original such as photographic film or paper bearing an image and indicia representing a desired digital image security feature to be applied to a digital image produced by scanning the image; b. a scanner for scanning the image on the photographic original to generate a digital image; c. means for detecting the indicia on the photographic original to generate a security feature control signal; and d. digital image processing means responsive to the security feature control signal and the digital image for applying the desired digital image security feature to the digital image.
Claim 2
Dependent Claim
101 words
A secure photographic system, comprising: a. a photographic original such as photographic film or paper bearing an image and indicia representing a desired digital image security feature to be applied to a digital image produced by scanning the image; b. a scanner for scanning the image on the photographic original to generate a digital image; c. means for detecting the indicia on the photographic original to generate a security feature control signal; and d. digital image processing means responsive to the security feature control signal and the digital image for applying the desired digital image security feature to the digital image.
Claim 3
Dependent Claim
30 words
The secure photographic system claimed in claim 1, further comprising: a. a photographic camera including means for applying indicia representing the desired digital image security feature relating to the image.
Claim 4
Dependent Claim
19 words
The secure photographic system claimed in claim 1, wherein the desired security feature is applying encryption to the image.
Claim 5
Dependent Claim
14 words
The secure photographic system claimed in claim 3, wherein the encryption is private-key encryption.
Claim 6
Dependent Claim
14 words
The secure photographic system claimed in claim 3, wherein the encryption is public-key encryption.
Claim 7
Dependent Claim
21 words
The secure photographic system claimed in claim 1, wherein the desired security feature is adding a digital signature to the image.
Claim 8
Dependent Claim
18 words
The secure photographic system claimed in claim 6, wherein the digital signature is based on a public-key cryptosystem.
Claim 9
Dependent Claim
47 words
The secure photographic system claimed in claim 7, wherein the digital image processing means includes: a. means for applying a hashing function to the digital image to produce an image hash; and b. means for encrypting the image hash using the private key of a public-key cryptosystem.
Claim 10
Dependent Claim
20 words
The secure photographic system claimed in claim 6, wherein the digital signature is based on the Digital Signature Standard DSS.
Claim 11
Dependent Claim
24 words
The secure photographic system claimed in claim 1, further comprising: a) means for securely conveying encryption key information to a user of the system.
Claim 12
Dependent Claim
21 words
The secure photographic system claimed in claim 10, wherein the secure conveying means employs a public key owned by a photographer.
Claim 13
Dependent Claim
18 words
The secure photographic system claimed in claim 1, wherein the indicia includes a set of image security keys.
Claim 14
Dependent Claim
22 words
The secure photographic system claimed in claim 12, wherein the security keys are encrypted by a public key owned by a photofinisher.
Claim 15
Dependent Claim
14 words
The secure photographic system claimed in claim 1, wherein the indicia is optically detectable.
Claim 16
Dependent Claim
14 words
The secure photographic system claimed in claim 1, wherein the indicia is magnetically detectable.
Claim 17
Dependent Claim
14 words
The secure photographic system claimed in claim 1, wherein the indicia is mechanically detectable.
Claim 18
Independent Claim
86 words
A method of providing security to a photographic image, comprising the steps of: a. placing indicia representing a desired digital image security feature to be applied to a digital image produced by scanning the image on a photographic original such as photographic film or paper; b. scanning the image on the photogaphic original to generate a digital image; c. detecting the indicia on the photographic original to generate a security feature control signal; and d. applying the desired digital image security feature to the digital image.
Claim 19
Independent Claim
86 words
A method of providing security to a photographic image, comprising the steps of: a. placing indicia representing a desired digital image security feature to be applied to a digital image produced by scanning the image on a photographic original such as photographic film or paper; b. scanning the image on the photogaphic original to generate a digital image; c. detecting the indicia on the photographic original to generate a security feature control signal; and d. applying the desired digital image security feature to the digital image.
Claim 20
Dependent Claim
52 words
The method claimed in claim 17, wherein the security feature is a digital signature and further comprising the steps of: a. hashing the digital image; b. providing a clear text; and c. encrypting the hash and the clear text using the private key of a public-key cryptosystem to produce the digital signature.
Claim 21
Dependent Claim
19 words
The method claimed in claim 18, further comprising the step of appending the clear text to the digital signature.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2001-08-31 | 2002-03-02 | 2002-09-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2005-08-31 | 2006-03-02 | 2006-09-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2009-08-31 | 2010-03-02 | 2010-09-01 | $7700.00 | Window Closed / Lapsed |