Authenticating images from digital cameras
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United States of America Patent
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Jul 31, 2001
Grant Date -
N/A
app pub date -
Jun 26, 1998
filing date -
Jun 26, 1998
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Abstract
Authentication of image from digital cameras with GPS-derived time and location data is disclosed. With the wide-spread availability of today's desktop tools and imaging devices, unethical manipulation of digital image data is common, such that digital images are not ordinarily reliable and can be subject to trickery and forgery. In the past, imagery such as photographs and digital images were reliable enough to serve as documentary evidence in most cases, since a skilled craftsman was needed to modify the images and commit fraud. However, skilled craftsmen are no longer needed, and digital images can be modified by even a casual user. Moreover, time data and location data are not ordinarily included in digital images. According to the invention, a digital camera system documents the time, date and location where a digital image was taken, using GPS-derived data from a secure connection. The validity and authenticity of the digital image, as well as the time data and location data, is then protected with a public key signature system that provides a digital signature by which the image and time and location information can be authenticated.
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- 15 United States
- 10 France
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- 2 Other
Patent Owner(s)
- CANON KABUSHIKI KAISHA
International Classification(s)
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
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Kohler, Timothy L | San Jose, CA | 26 | 1511 |
Schumacher, Thomas | Cupertino, CA | 21 | 187 |
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Fee | Large entity fee | small entity fee | micro entity fee | due date |
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Fee | Large entity fee | small entity fee | micro entity fee |
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Surcharge after expiration - Late payment is unavoidable | $700.00 | $350.00 | $175.00 |
Surcharge after expiration - Late payment is unintentional | $1,640.00 | $820.00 | $410.00 |
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