Patent US6011857A successfully refreshed from Google Patents.
US6011857A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Detecting copy restrictive documents
Assignee: Eastman Kodak Co
•
Filing: 1997-08-07
•
Granted: 2000-01-04
•
Expires: 2017-08-07
Abstract
Abstract A method for detecting copy restrictive documents is disclosed. At least one photograph (101) is placed on a scanner platen (10) and a low resolution scan is performed (20) to produce a low resolution image. A skew angle and a location of the photograph is determined (30). The photograph is rescanned at a high resolution (40) to produce a high resolution image, the high resolution image is deskewed (45), and the high resolution image is checked (50) for the presence of one or more microdots. Use of the high resolution image is inhibited if microdots are detected (55). In one embodiment, a plurality of photographs are placed on the scanner platen and a portion of each the high resolution images is checked by a software program for the presence of microdots.
Inventors
- 👤 Quinton L. Sowell
- 👤 Joseph P. DiVincenzo
- 👤 Jay S. Schildkraut
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 14:16
CPC Classifications
H; H04; H04N; H04N1/00; H04N1/00838; H04N1/0084; H04N1/00843; H04N1/00846; H04N1/00856; H04N1/00864; H04N1/00872; H04N2201/00; H04N2201/04; H04N2201/0402; H04N2201/0416
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
118 words
A method for detecting copy restrictive documents comprising the steps of: simultaneously placing a plurality of photographs on a scanner platen; performing a low resolution scan to produce a plurality of low resolution images representative of said photographs; determining a skew angle and a location on said scanner platen of each of said photographs from said low resolution images; scanning each of said photographs at a high resolution to produce a plurality of high resolution images representative of said photographs; deskewing each of said high resolution images; detecting a presence of one or more microdots in each of said high resolution images; and inhibiting use of any of said high resolution images in which microdots have been detected.
Claim 2
Independent Claim
118 words
A method for detecting copy restrictive documents comprising the steps of: simultaneously placing a plurality of photographs on a scanner platen; performing a low resolution scan to produce a plurality of low resolution images representative of said photographs; determining a skew angle and a location on said scanner platen of each of said photographs from said low resolution images; scanning each of said photographs at a high resolution to produce a plurality of high resolution images representative of said photographs; deskewing each of said high resolution images; detecting a presence of one or more microdots in each of said high resolution images; and inhibiting use of any of said high resolution images in which microdots have been detected.
Claim 3
Dependent Claim
36 words
A method for detecting copy restrictive documents as in claim 1 comprising the further step of checking a portion of each of said high resolution images for the presence of one or more of said microdots.
Claim 4
Independent Claim
84 words
A method for detecting copy restrictive documents comprising the steps of: simultaneously placing a plurality of photographs on a scanner platen; performing a scan of said plurality of photographs to produce a plurality of images representative of said plurality of photographs; determining a location on said scanner platen of each of said plurality of photographs; detecting a presence of one or more microdots in each of said plurality of photographs; and inhibiting use of any of said photographs in which said microdots are detected.
Claim 5
Independent Claim
84 words
A method for detecting copy restrictive documents comprising the steps of: simultaneously placing a plurality of photographs on a scanner platen; performing a scan of said plurality of photographs to produce a plurality of images representative of said plurality of photographs; determining a location on said scanner platen of each of said plurality of photographs; detecting a presence of one or more microdots in each of said plurality of photographs; and inhibiting use of any of said photographs in which said microdots are detected.
References Cited (Backward Citations)
US4516265A
Cited
US4802229A
Cited
US5018767A
Cited
US5193853A
Cited
US5231663A
Cited
US5379093A
Cited
US5390003A
Cited
US5467169A
Cited
US5412718A
Cited
US5647010A
Cited
US5444779A
Cited
US5845008A
Cited
US5719968A
Cited
US5752152A
Cited
US5822660A
Cited
US5843564A
Cited
US5841905A
Cited
US5772250A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2003-01-03 | 2003-07-05 | 2004-01-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2007-01-03 | 2007-07-05 | 2008-01-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2011-01-03 | 2011-07-05 | 2012-01-04 | $7700.00 | Window Closed / Lapsed |