US5790277A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Duplex film scanning
Assignee: International Business Machines Corp
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Filing: 1995-05-30
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Granted: 1998-08-04
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Expires: 2015-05-30
Abstract
Abstract A method, system and process for reflecting a light on both sides of a film and developing the film to produce a digital image by scanning an image on the film as it develops and creating a digital representation of the image on the film.
Inventors
- 👤 Albert Durr Edgar
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 17:58
CPC Classifications
H; H04; H04N; H04N1/00; H04N1/00127; H04N1/00249; H04N1/00259; H04N1/00262; H04N1/00795; H04N1/46; H04N1/48
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
117 words
A scanner for producing a digital color image, comprising: (a) means for capturing first reflected light reflected from the front of a multilayer film as said multilayer film travels through said scanner; (b) means for capturing second reflected light reflected from the back of the multilayer film; (c) means for capturing transmitted light passing through the multilayer film; (d) means for storing a plurality of digital images each formed as a plurality of pixels from one of said captured first and second reflected light and said transmitted light; and (e) means for creating a digital color representation of the image on the multilayer film by combining said plurality of digital images on a pixel by pixel basis.
Claim 2
Dependent Claim
117 words
A scanner for producing a digital color image, comprising: (a) means for capturing first reflected light reflected from the front of a multilayer film as said multilayer film travels through said scanner; (b) means for capturing second reflected light reflected from the back of the multilayer film; (c) means for capturing transmitted light passing through the multilayer film; (d) means for storing a plurality of digital images each formed as a plurality of pixels from one of said captured first and second reflected light and said transmitted light; and (e) means for creating a digital color representation of the image on the multilayer film by combining said plurality of digital images on a pixel by pixel basis.
Claim 3
Independent Claim
133 words
A method for electronically creating an output image from an image containing film having two or more image recording layers, the method comprising the steps of: directing a light source toward a first surface of the film; capturing light reflected from the first surface of the film; storing the captured light as a first digital representation of the image having a plurality of pixels; directing a second light source toward a second surface of said film, the second surface and the first surface forming opposite sides of the film; capturing light reflected from the second surface of the film; storing the captured light as a second digital representation of the image having a plurality of pixels; and combining the stored digital representations on a pixel by pixel basis to produce the output image.
Claim 4
Independent Claim
133 words
A method for electronically creating an output image from an image containing film having two or more image recording layers, the method comprising the steps of: directing a light source toward a first surface of the film; capturing light reflected from the first surface of the film; storing the captured light as a first digital representation of the image having a plurality of pixels; directing a second light source toward a second surface of said film, the second surface and the first surface forming opposite sides of the film; capturing light reflected from the second surface of the film; storing the captured light as a second digital representation of the image having a plurality of pixels; and combining the stored digital representations on a pixel by pixel basis to produce the output image.
Claim 5
Dependent Claim
34 words
The method of claim 1, further comprising the steps of: capturing light transmitted through the film; and storing the captured light as a third digital representation of the image having a plurality of pixels.
Claim 6
Dependent Claim
15 words
The method of claim 1 wherein the film is scanned at multiple spaced time intervals.
Claim 7
Dependent Claim
94 words
The method of claim 4, wherein the step of combining the stored digital representations comprises the steps of: determining a pixel value for each pixel of the image captured at corresponding locations in each of the stored digital representations; and determining an adjusted pixel value for each pixel of the output image by dividing the pixel value from the digital representation earlier in time by the pixel value of the digital representation later in time; and repeating the determining an adjusted pixel value step for each determined pixel value of the stored digital representations.
Claim 8
Dependent Claim
61 words
The method of claim 1, wherein the step of combining the stored digital representations comprises the steps of: determining a value for each pixel of each of the captured images at corresponding locations within said images; and applying a mathematical optimization to said values to determine an optimal pixel value for a pixel at a corresponding location in said output image.
Claim 9
Independent Claim
119 words
A method for electronically producing an image recorded on a film having two or more image recording layers, the method comprising the steps of: directing a light source toward a first surface of said film; and capturing light reflected from said first surface of said film to form a first digital representation having a plurality of pixels; directing a second light source toward a second surface of said film, said second surface and said first surface forming opposite sides of said film; capturing light reflected from said second surface of said film to form a second digital representation having a plurality of pixels; and combining the digital representations on a pixel by pixel basis to produce an output image.
Claim 10
Independent Claim
119 words
A method for electronically producing an image recorded on a film having two or more image recording layers, the method comprising the steps of: directing a light source toward a first surface of said film; and capturing light reflected from said first surface of said film to form a first digital representation having a plurality of pixels; directing a second light source toward a second surface of said film, said second surface and said first surface forming opposite sides of said film; capturing light reflected from said second surface of said film to form a second digital representation having a plurality of pixels; and combining the digital representations on a pixel by pixel basis to produce an output image.
Claim 11
Dependent Claim
27 words
The method of claim 7, further comprising the steps of: capturing light transmitted through said film to form a third digital representation having a plurality of pixels.
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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) | 2001-08-03 | 2002-02-02 | 2002-08-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2005-08-03 | 2006-02-02 | 2006-08-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2009-08-03 | 2010-02-02 | 2010-08-04 | $7700.00 | Window Closed / Lapsed |