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US4636069A
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Method for reading deformation images on electrophotographic media
Assignee: MILES INC. A CORP. OF INDIANA
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Filing: 1984-11-15
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Granted: 1987-01-13
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Expires: 2004-11-15
Abstract
Abstract A method for reading deformation images recorded on electrophotographic media involving scanning of an image surface and measuring microscopic surface tilt in a reflected beam. In one embodiment, the deformation image is scanned telecentrically and in another embodiment the surface is scanned with a beam at angles to the surface. By intercepting the retroflected beam and measuring the deviation of the reflected beam from the scanning center, a number of proportional-to-surface tilt is found. By then electrically integrating over neighboring regions, an electrical or optical pattern, reimaging the deformation image, may be constructed.
Inventors
- 👤 N. Balasubramanian
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 14:04
CPC Classifications
H; H04; H04N; H04N5/00; H04N5/76; H04N5/84; G; G03; G03G; G03G16/00; H04N1/00; H04N1/024; H04N1/028
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
66 words
A method of reading deformation images recorded on electrophotographic media comprising, scanning a deformation image on an electrophotographic medium with a radiation beam, detecting the optical slope from a plurality of microscopic regions, forming an electrical signal representing the surface slope for said plurality of microscopic regions, and integrating said electrical signal to obtain a signal representing the image intensity at said plurality of microscopic regions.
Claim 2
Independent Claim
66 words
A method of reading deformation images recorded on electrophotographic media comprising, scanning a deformation image on an electrophotographic medium with a radiation beam, detecting the optical slope from a plurality of microscopic regions, forming an electrical signal representing the surface slope for said plurality of microscopic regions, and integrating said electrical signal to obtain a signal representing the image intensity at said plurality of microscopic regions.
Claim 3
Dependent Claim
17 words
The method of claim 1 wherein said signal representing image intensity is converted to a digital signal.
Claim 4
Dependent Claim
17 words
The method of claim 2 further defined by storing said digital signal on an archival storage medium.
Claim 5
Dependent Claim
15 words
The method of claim 2 further defined by displaying said digital signal on a printer.
Claim 6
Dependent Claim
21 words
The method of claim 1 further defined by telecentrically scanning said reflective deformation image over an area with a laser beam.
Claim 7
Dependent Claim
13 words
The method of claim 1 further defined by displaying the integrated electrical signal.
Claim 8
Independent Claim
75 words
A method of reading deformation images recorded on electrophotographic media comprising, scanning a deformation image recorded on an electrophotographic medium with a light beam, optically detecting the slopes of the reflected beam at a plurality of microscopic regions extending over the area of the image and producing a signal proportional to said slopes, integrating said signals from said plurality of microscopic regions to obtain a signal representing image intensity at said plurality of microscoic regions.
Claim 9
Independent Claim
75 words
A method of reading deformation images recorded on electrophotographic media comprising, scanning a deformation image recorded on an electrophotographic medium with a light beam, optically detecting the slopes of the reflected beam at a plurality of microscopic regions extending over the area of the image and producing a signal proportional to said slopes, integrating said signals from said plurality of microscopic regions to obtain a signal representing image intensity at said plurality of microscoic regions.
Claim 10
Dependent Claim
12 words
The method of claim 7 further defined by displaying the integrated signal.
Claim 11
Independent Claim
71 words
A method of reading deformation images recorded on electrophotographic media comprising, scanning a deformation image recorded on an electrophotographic medium with a light beam, optically detecting the reflected beam slopes at a plurality of microscopic regions on the image, forming an electrical signal representing the optical slopes for said plurality of microscopic regions, integrating said electrical signal over areas about said plurality of microscopic regions, and displaying said integrated electrical signal.
Claim 12
Independent Claim
71 words
A method of reading deformation images recorded on electrophotographic media comprising, scanning a deformation image recorded on an electrophotographic medium with a light beam, optically detecting the reflected beam slopes at a plurality of microscopic regions on the image, forming an electrical signal representing the optical slopes for said plurality of microscopic regions, integrating said electrical signal over areas about said plurality of microscopic regions, and displaying said integrated electrical signal.
Claim 13
Dependent Claim
19 words
The method of claim 9 wherein said integrated electrical signal is displayed by plotting lines of constant radiation intensity.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
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| 3.5 Years (Year 4) | 1990-01-12 | 1990-07-14 | 1991-01-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-01-12 | 1994-07-14 | 1995-01-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-01-12 | 1998-07-14 | 1999-01-13 | $7700.00 | Window Closed / Lapsed |