Patent US5604601A successfully refreshed from Google Patents.
US5604601A
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Reference grid rectilinear correction
Assignee: International Business Machines Corp
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Filing: 1994-08-24
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Granted: 1997-02-18
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Expires: 2014-08-24
Abstract
Abstract A scanner for copying an image from substrate including a substrate holder for holding the substrate having a reference grid preferably disposed to one side of the substrate. The scanning means, e.g., a CCD array, simultaneously scans the image and the reference grid as the substrate holder is moved relative to the scanning means. The scanner contains software and/or hardware for interpreting the sensed portion of the reference grid as a position. The position is associated with the raw scan line of the image which was sensed at the same time as the sensed portion of the reference grid.
Inventors
- 👤 Albert D. Edgar
- 👤 Steven C. Penn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 01:59
CPC Classifications
H; H04; H04N; H04N1/00; H04N1/04; H04N1/047; H04N1/40; H04N1/40068; H04N1/12; H04N1/19; H04N1/191; H04N1/192; H04N1/193; H04N2201/00; H04N2201/024; H04N2201/02406; H04N2201/02425; H04N2201/02439; H04N2201/028; H04N2201/03; H04N2201/031; H04N2201/03104; H04N2201/0315; H04N2201/03162; H04N2201/04; H04N2201/0402; H04N2201/0404; H04N2201/0408; H04N2201/047; H04N2201/04701; H04N2201/04703; H04N2201/04705; H04N2201/04708; H04N2201/04715; H04N2201/0472; H04N2201/04729; H04N2201/04731; H04N2201/04732; H04N2201/04734; H04N2201/04749; H04N2201/04753; H04N2201/04758; H04N2201/04787; H04N2201/04789; H04N2201/04791; H04N2201/04794
Claims Analysis
Total Claims: 22
Claim 1
Independent Claim
112 words
A scanner for copying an image from substrate comprising: a scanning means for sensing the substrate image and a reference grid disposed proximate to the substrate; transport means for moving the substrate and reference grid relative to the scanning means; means for interpreting a sensed portion of the reference grid as a position and associating the position with a contemporaneously sensed raw scan line of the image; and means for processing sensed pixels in raw scan lines to processed pixels at a chosen spacing in an image buffer according to the positions associated with the raw scan image buffer lines, wherein several sensed pixels are weighted together to calculate a processed pixel.
Claim 2
Dependent Claim
112 words
A scanner for copying an image from substrate comprising: a scanning means for sensing the substrate image and a reference grid disposed proximate to the substrate; transport means for moving the substrate and reference grid relative to the scanning means; means for interpreting a sensed portion of the reference grid as a position and associating the position with a contemporaneously sensed raw scan line of the image; and means for processing sensed pixels in raw scan lines to processed pixels at a chosen spacing in an image buffer according to the positions associated with the raw scan image buffer lines, wherein several sensed pixels are weighted together to calculate a processed pixel.
Claim 3
Dependent Claim
28 words
The scanner as recited in claim 1 wherein the reference grid has a first area which is interpreted to establish a vertical position of the raw scan line.
Claim 4
Dependent Claim
29 words
The scanner as recited in claim 2 wherein the reference grid has a second area which is interpreted to establish a relative horizontal position of the raw scan line.
Claim 5
Dependent Claim
29 words
The scanner as recited in claim 3 wherein the reference grid has a third area which is interpreted to establish an absolute horizontal position of the raw scan line.
Claim 6
Dependent Claim
36 words
The scanner as recited in claim 4 wherein the first area contains a continuous horizontal line, the second area contains a set of slanted lines and the third area contains a set of horizontal clock lines.
Claim 7
Dependent Claim
23 words
The scanner as recited in claim 1 wherein the reference grid is at least one reference track disposed one side of the substrate.
Claim 8
Independent Claim
89 words
A method for copying an image from substrate comprising the steps of: scanning the substrate and a reference grid disposed proximate to the substrate; interpreting a sensed portion of the reference grid as a position; associating the position with a contemporaneously sensed raw scan line of the image; and processing sensed pixels in raw scan lines to processed pixels at a chosen spacing in an image buffer according to the positions associated with the raw scan lines, wherein several sensed pixels are weighted together to calculate a processed pixel.
Claim 9
Independent Claim
89 words
A method for copying an image from substrate comprising the steps of: scanning the substrate and a reference grid disposed proximate to the substrate; interpreting a sensed portion of the reference grid as a position; associating the position with a contemporaneously sensed raw scan line of the image; and processing sensed pixels in raw scan lines to processed pixels at a chosen spacing in an image buffer according to the positions associated with the raw scan lines, wherein several sensed pixels are weighted together to calculate a processed pixel.
Claim 10
Dependent Claim
29 words
The method as recited in claim 7 wherein the interpreting step interprets a first area of the reference grid to establish a vertical position of the raw scan line.
Claim 11
Dependent Claim
30 words
The method as recited in claim 8 wherein the interpreting step interprets a second area of the reference grid to establish a relative horizontal position of the raw scan line.
Claim 12
Dependent Claim
30 words
The method as recited in claim 9 wherein the interpreting step interprets a third area of the reference grid to establish an absolute horizontal position of the raw scan line.
Claim 13
Dependent Claim
36 words
The method as recited in claim 10 wherein the first area contains a continuous horizontal line, the second area contains a set of slanted lines and the third area contains a set of horizontal clock lines.
Claim 14
Dependent Claim
26 words
The method as recited in claim 7 wherein the reference grid is at least one reference track disposed on at least one side of the substrate.
Claim 15
Dependent Claim
84 words
A scanner for copying an image from substrate comprising: a scanning means for sensing the substrate image and a reference grid disposed proximate to the substrate; transport means for moving the substrate and reference grid relative to the scanning means; and means for interpreting a sensed portion of the reference grid as a horizontal and vertical position and associating the position with a contemporaneously sensed raw scan line of the image to establish a relative horizontal and vertical position of the raw scan line.
Claim 16
Dependent Claim
84 words
A scanner for copying an image from substrate comprising: a scanning means for sensing the substrate image and a reference grid disposed proximate to the substrate; transport means for moving the substrate and reference grid relative to the scanning means; and means for interpreting a sensed portion of the reference grid as a horizontal and vertical position and associating the position with a contemporaneously sensed raw scan line of the image to establish a relative horizontal and vertical position of the raw scan line.
Claim 17
Dependent Claim
25 words
The scanner as recited in claim 13 wherein the reference grid is also used to establish an absolute horizontal position of the raw scan line.
Claim 18
Dependent Claim
89 words
The scanner as recited in claim 14 wherein a first area of the reference grid contains a continuous horizontal line which is used to establish the vertical position of the raw scan line, a second area of the reference grid contains a set of slanted lines which is used to establish the relative horizontal position of the raw scan line and a third area of the reference grid contains a set of horizontal clock lines which is used to establish the absolute horizontal position of the raw scan line.
Claim 19
Independent Claim
65 words
A method for copying an image from substrate comprising the steps of: scanning the substrate and a reference grid disposed proximate to the substrate; interpreting a sensed portion of the reference grid as a horizontal and vertical position; and associating the position with a contemporaneously sensed raw scan line of the image to establish a relative horizontal and vertical position of the raw scan line.
Claim 20
Independent Claim
65 words
A method for copying an image from substrate comprising the steps of: scanning the substrate and a reference grid disposed proximate to the substrate; interpreting a sensed portion of the reference grid as a horizontal and vertical position; and associating the position with a contemporaneously sensed raw scan line of the image to establish a relative horizontal and vertical position of the raw scan line.
Claim 21
Dependent Claim
30 words
The method as recited in claim 16 wherein the interpreting step interprets the sensed portion of the reference grid to establish an absolute horizontal position of the raw scan line.
Claim 22
Dependent Claim
85 words
The method as recited in claim 17 wherein interpreting step interprets a first area of the referenced grid which contains a continuous horizontal line to establish the vertical position of the raw scan line, the second area of the reference grid which contains set of slanted lines to establish the relative horizontal position of the raw scan line and the third area of the reference grid which contains a set of horizontal clock lines to establish the absolute horizontal position of the raw scan line.
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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) | 2000-02-18 | 2000-08-19 | 2001-02-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2004-02-18 | 2004-08-19 | 2005-02-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2008-02-18 | 2008-08-19 | 2009-02-18 | $7700.00 | Window Closed / Lapsed |