US4951084A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Photographic color copying apparatus and exposure control process
Assignee: IMIP LLC
•
Filing: 1988-10-14
•
Granted: 1990-08-21
•
Expires: 2008-10-14
Abstract
Abstract Originals to be copied are scanned spectral photometrically by regions and from the spectral values obtained thereby, color extract values adapted to the spectral sensitivity variations of the copy material are formed by electronic or computer filtering. The color extract values are then evaluated for the determination of the necessary amounts of copying light. The spectral values are simultaneously used for image analysis and additional control of the exposure. The process avoids expensive optical filters and makes an image analysis which yields a greater amount of information, and thus a more extact determination of the amounts of copying light, possible.
Inventors
- 👤 Werner R. von Stein
- 👤 Walter Kraft
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 23:26
CPC Classifications
G; G03; G03B; G03B27/00; G03B27/72; G03B27/73; G03B27/735
Claims Analysis
Total Claims: 95
Claim 1
Independent Claim
116 words
Process for controlling the exposure in a photographic color copying apparatus, comprising the steps of: photoelectrically scanning a copy original by regions; determining for every scanned region of the original, color extract values adapted to the spectral sensitivity variation of a copy material; comparing the color extract values with corresponding reference values to determine the necessary amounts of copying light; said step of determining color extract values further including the steps of: decomposing measuring light which originates in each of the scanning regions of the copy original into a plurality of narrow spectral regions; measuring a spectral value for each spectral region; and, evaluating spectral sensitivity variations of the copy material and integrating the spectral values.
Claim 2
Dependent Claim
116 words
Process for controlling the exposure in a photographic color copying apparatus, comprising the steps of: photoelectrically scanning a copy original by regions; determining for every scanned region of the original, color extract values adapted to the spectral sensitivity variation of a copy material; comparing the color extract values with corresponding reference values to determine the necessary amounts of copying light; said step of determining color extract values further including the steps of: decomposing measuring light which originates in each of the scanning regions of the copy original into a plurality of narrow spectral regions; measuring a spectral value for each spectral region; and, evaluating spectral sensitivity variations of the copy material and integrating the spectral values.
Claim 3
Dependent Claim
26 words
Process according to claim 1, wherein said color extract values are determined by weighting spectral sensitivity variations of the copy material and summing the spectral values.
Claim 4
Dependent Claim
48 words
Process according to claim 2, wherein the measurement of the spectral values is carried out in a coarser wave length grid with a lower resolution than is used in the evaluation and integration of the spectral values, and wherein intermediate spectral values which are not measured, are interpolated.
Claim 5
Dependent Claim
22 words
Process according to claim 3, wherein the measurement of the spectral values is effected with a resolution of 5 to 40 nanometers.
Claim 6
Dependent Claim
22 words
Process according to claim 4, wherein the measurement of the spectral values is effected with a resolution of 10 to 20 nanometers.
Claim 7
Dependent Claim
25 words
Process according to claim 5, wherein the evaluation of the spectral values is carried out by appropriately adjusting the sensitivity of the photoelectric measuring layout.
Claim 8
Dependent Claim
40 words
Process according to claim 6, wherein the measuring light originating in each of the scanning regions, is spectrally decomposed and projected onto a row of photosensors, wherein each photosensor is exposed to the light of another narrow wave length region.
Claim 9
Dependent Claim
79 words
Process according to claim 7, whereby in the photoelectric scanning of the copy original, a strip comprising a plurality of scanning regions of the copy original is always measured at any one time, such that measuring light originating in said strip is spectrally decomposed, and reproduced on a field of photosensors arranged in rows and columns, so that the photosensors belonging to one row are exposed to light from the same scanning region but having different wave length ranges.
Claim 10
Dependent Claim
16 words
Process according to claim 8, wherein charged coupled devices (CCD) are used as the photoelectric sensors.
Claim 11
Dependent Claim
25 words
Process according to claim 9, wherein for the spectral decomposition of the measuring light a prism, a spectral filter or a diffraction grating is used.
Claim 12
Dependent Claim
36 words
Process according to claim 10, wherein the spectral values of a mask of the copy original are determined and included in an analysis of the original and the determination of the amounts of the copying light.
Claim 13
Dependent Claim
30 words
Process according to claim 10, wherein the spectral values of a mask of the copy original are determined and included in the determination of the amounts of the copying light.
Claim 14
Dependent Claim
28 words
Process according to claim 3, wherein the evaluation and integration of the spectral values and intermediate values are carried out with a resolution of 1 to 3 nanometers.
Claim 15
Dependent Claim
27 words
Process according to claim 13, wherein the evaluation and integration of the spectral values and intermediate values are carried out with a resolution of about 2 nanometers.
Claim 16
Dependent Claim
25 words
Process according to claim 14, wherein the evaluation of the spectral values is carried out by appropriately adjusting the sensitivity of the photoelectric measuring layout.
Claim 17
Dependent Claim
40 words
Process according to claim 15, wherein the measuring light originating in each of the scanning regions, is spectrally decomposed and projected onto a row of photosensors, wherein each photosensor is exposed to the light of another narrow wave length region.
Claim 18
Dependent Claim
79 words
Process according to claim 16, whereby in the photoelectric scanning of the copy original, a strip comprising a plurality of scanning regions of the copy original is always measured at any one time, such that measuring light originating in said strip is spectrally decomposed, and reproduced on a field of photosensors arranged in rows and columns, so that the photosensors belonging to one row are exposed to light from the same scanning region but having different wave length ranges.
Claim 19
Dependent Claim
16 words
Process according to claim 17, wherein charged coupled devices (CCD) are used as the photoelectric sensors.
Claim 20
Dependent Claim
25 words
Process according to claim 18, wherein for the spectral decomposition of the measuring light a prism, a spectral filter or a diffraction grating is used.
Claim 21
Dependent Claim
36 words
Process according to claim 19, wherein the spectral values of a mask of the copy original are determined and included in an analysis of the original and the determination of the amounts of the copying light.
Claim 22
Dependent Claim
30 words
Process according to claim 19, wherein the spectral values of a mask of the copy original are determined and included in the determination of the amounts of the copying light.
Claim 23
Dependent Claim
144 words
Photographic color copying apparatus comprising: a projection device for reproducing a copy original on a photosensitive copy material; a measuring layout for photoelectrically scanning the original by regions and for determining for every scanning region, color extract values which are adapted to a spectral sensitivity variation of the copy material; exposure controls cooperating with the measuring layout and the projection device for determining amounts of copying light impacting the copy material, said measuring layout further including: spectrometric means for splitting measuring light which originates in every scanning region of the copy original into a plurality of narrow spectral regions and producing a spectral value for each spectral region; and electronic computer means for determining the color extract values upon which the exposure controls are based from the spectral values by evaluating the spectral sensitivity variation of the copy material and integrating said spectral values.
Claim 24
Dependent Claim
144 words
Photographic color copying apparatus comprising: a projection device for reproducing a copy original on a photosensitive copy material; a measuring layout for photoelectrically scanning the original by regions and for determining for every scanning region, color extract values which are adapted to a spectral sensitivity variation of the copy material; exposure controls cooperating with the measuring layout and the projection device for determining amounts of copying light impacting the copy material, said measuring layout further including: spectrometric means for splitting measuring light which originates in every scanning region of the copy original into a plurality of narrow spectral regions and producing a spectral value for each spectral region; and electronic computer means for determining the color extract values upon which the exposure controls are based from the spectral values by evaluating the spectral sensitivity variation of the copy material and integrating said spectral values.
Claim 25
Dependent Claim
30 words
Photographic color copying apparatus according to claim 22, wherein the color extract values are determined by weighting the spectral sensitivity variations of the copy material and summing the spectral values.
Claim 26
Dependent Claim
20 words
Copying apparatus according to claim 23, wherein the spectrometric means comprise a prism, a spectral filter or a diffraction grating.
Claim 27
Dependent Claim
28 words
Copying apparatus according to claim 24, wherein the electronic means carries out the evaluation of the spectral values through the sensitivity of photosensors contained in the spectrometric means.
Claim 28
Dependent Claim
39 words
Copying apparatus according to claim 25, wherein the electronic computer means further includes a memory for storing the spectral sensitivity variations of the copy material and a computer for weighting the spectral values measured with the stored sensitivity values.
Claim 29
Dependent Claim
28 words
Copying apparatus according to claim 26, wherein the computer interpolates intermediate spectral values from the measured spectral values for use in the determination of the color extract values.
Claim 30
Dependent Claim
21 words
Copying apparatus according to claim 27, wherein the spectrometric means operates with a resolution of approximately 5 to about 40 nm.
Claim 31
Dependent Claim
20 words
Copying apparatus according to claim 28, wherein the spectrometric means operates with a resolution of about 10 to 20 nm.
Claim 32
Dependent Claim
18 words
Copying apparatus according to claim 29, wherein the spectrometric means contains a one- or two-dimensional field of sensors.
Claim 33
Dependent Claim
14 words
Copying apparatus according to claim 30, wherein the sensors are charge coupled photoelectric sensors.
Claim 34
Dependent Claim
164 words
Process for controlling the exposure in a photographic color copying apparatus comprising the steps of: photoelectrically scanning a copy original by individual regions; determining for each scanning region of the copy original, first color extract values adapted to spectral sensitivity variations of a copy material; comparing the first color extract values with appropriate reference values to determine the necessary amounts of copying light; determining for the individual scanning regions of the copy original, in additional to the first color extract values adapted to the copy material, second, separate color extract values adapted to spectral absorption variations of a copy original material of the copy original; analyzing the color composition of the individual scanning regions of the copy original using the second color extract values adapted to the copy original material and in keeping with predetermined criteria; and, determining in response to said analysis any effect of the first color extract values of the scanning regions in the determination of the amounts of copying light.
Claim 35
Dependent Claim
164 words
Process for controlling the exposure in a photographic color copying apparatus comprising the steps of: photoelectrically scanning a copy original by individual regions; determining for each scanning region of the copy original, first color extract values adapted to spectral sensitivity variations of a copy material; comparing the first color extract values with appropriate reference values to determine the necessary amounts of copying light; determining for the individual scanning regions of the copy original, in additional to the first color extract values adapted to the copy material, second, separate color extract values adapted to spectral absorption variations of a copy original material of the copy original; analyzing the color composition of the individual scanning regions of the copy original using the second color extract values adapted to the copy original material and in keeping with predetermined criteria; and, determining in response to said analysis any effect of the first color extract values of the scanning regions in the determination of the amounts of copying light.
Claim 36
Dependent Claim
49 words
Process according to claim 32, further comprising the step of photoelectrically measuring the scanning regions of the original to obtain measured spectral values in the spectral regions in which the spectral absorption of the colorants of the copying original have their maximum for determining the second color extract values.
Claim 37
Dependent Claim
62 words
Process according to claim 33, further comprising the steps of: determining the transmissivity of density of a mask of the copying original and, in determining the second color extract values, standardizing the measured values on the transmissivity or density of the mask by dividing the values measured in the said spectral regions by the transmissivity of the mask in these spectral regions.
Claim 38
Dependent Claim
50 words
Process according to claim 34, wherein the individual scanning regions of the original are scanned spectrometrically and the first color extract values adapted to the copy material and/or the second color extract values are determined by the electronic or computer filtering of the spectral values obtained by the spectrometric scanning.
Claim 39
Dependent Claim
30 words
Process according to claim 35, wherein the spectral values, in particular those .of the mask in the case of negative films, are evaluated for recognizing the manufacture of the original.
Claim 40
Dependent Claim
45 words
Process according to claim 36, wherein the spectral values are standardized on the spectral transmissivity or density of the mask of the material of the original, and the evaluation to recognize the original material is carried out on the basis of the standardized spectral values.
Claim 41
Dependent Claim
63 words
Process according to claim 35, wherein said step of determining first color extract values further comprises the steps of: decomposing measuring light which originates in each of the scanning regions of the copy original into a plurality of narrow spectral regions; measuring a spectral value for each spectral region; and evaluating spectral sensitivity variations of the copy material and integrating the spectral values.
Claim 42
Dependent Claim
26 words
Process according to claim 38, wherein said first extract values are determined by weighting spectral sensitivity variations of the copy material and summing the spectral values.
Claim 43
Dependent Claim
48 words
Process according to claim 39, wherein the measurement of the spectral values is carried out in a coarser wave length grid with a lower resolution than is used in the evaluation and integration of the spectral values, and wherein intermediate spectral values which are not measured, are interpolated.
Claim 44
Dependent Claim
79 words
Process according to claim 35, whereby in the photoelectric scanning of the copy original, a strip comprising a plurality of scanning regions of the copy original is always measured at any one time, such that measuring light originating in said strip is spectrally decomposed, and reproduced on a field of photosensors arranged in rows and columns, so that the photosensors belonging to one row are exposed to light from the same scanning region but having different wave length ranges.
Claim 45
Dependent Claim
63 words
Process according to claim 34, wherein said step of determining first color extract values further comprises the steps of: decomposing measuring light which originates in each of the scanning regions of the copy original into a plurality of narrow spectral regions; measuring a spectral value for each spectral region; and evaluating spectral sensitivity variations of the copy material and integrating the spectral values.
Claim 46
Dependent Claim
27 words
Process according to claim 42, wherein said first color extract values are determined by weighting spectral sensitivity variations of the copy material and summing the spectral values.
Claim 47
Dependent Claim
48 words
Process according to claim 43, wherein the measurement of the spectral values is carried out in a coarser wave length grid with a lower resolution than is used in the evaluation and integration of the spectral values, and wherein intermediate spectral values which are not measured, are interpolated.
Claim 48
Dependent Claim
79 words
Process according to claim 34, whereby in the photoelectric scanning of the copy original, a strip comprising a plurality of scanning regions of the copy original is always measured at any one time, such that measuring light originating in said strip is spectrally decomposed, and reproduced on a field of photosensors arranged in rows and columns, so that the photosensors belonging to one row are exposed to light from the same scanning region but having different wave length ranges.
Claim 49
Dependent Claim
44 words
Process according to claim 33, further comprising the steps of: determining the transmissivity or density of a mask of the copying original and, in determining the second color extract values, reducing the measured values by the density of the mask in said spectral regions.
Claim 50
Dependent Claim
50 words
Process according to claim 46, wherein the individual scanning regions of the original are scanned spectrometrically and the first color extract values adapted to the copy material and/or the second color extract values are determined by the electronic qr computer filtering of the spectral values obtained by the spectrometric scanning.
Claim 51
Dependent Claim
30 words
Process according to claim 47, wherein the spectral values, in particular those of the mask in the case of negative films, are evaluated for recognizing the manufacture of the original.
Claim 52
Dependent Claim
45 words
Process according to claim 48, wherein the. spectral values are standardized on the spectral transmissivity or density of the mask of the material of the original, and the evaluation to recognize the original material is carried out on the basis of the standardized spectral values.
Claim 53
Dependent Claim
29 words
Process according to claim 33, wherein said spectral regions are located at approximately 450 nm, 550 nm and 695 nm, each with a band width of about 10 nm.
Claim 54
Dependent Claim
50 words
Process according to claim 50, wherein the individual scanning regions of the original are scanned spectrometrically and the first color extract values adapted to the copy material and/or the second color extract values are determined by the electronic or computer filtering of the spectral values obtained by the spectrometric scanning.
Claim 55
Dependent Claim
30 words
Process according to claim 51, wherein the spectral values, in particular those of the mask in the case of negative films, are evaluated for recognizing the manufacture of the original.
Claim 56
Dependent Claim
45 words
Process according to claim 52, wherein the spectral values are standardized on the spectral transmissivity or density of the mask of the material of the original, and the evaluation to recognize the original material is carried out on the basis of the standardized spectral values.
Claim 57
Dependent Claim
59 words
Process according to claim 33, said step of determining first color extract values further comprises the steps of: decomposing measuring light originates in each of the scanning regions of copy original into a plurality of narrow spectral regions; measuring a spectral value for spectral region; and evaluating spectral sensitivity variations of the copy material and integrating the spectral values.
Claim 58
Dependent Claim
26 words
Process according to claim 54, wherein said first extract values are determined by weighting spectral sensitivity variations of the copy material and summing the spectral values.
Claim 59
Dependent Claim
48 words
Process according to claim 55, wherein the measurement of the spectral values is carried out in a coarser wave length grid with a lower resolution than is used in the evaluation and integration of the spectral values, and wherein intermediate spectral values which are not measured, are interpolated.
Claim 60
Dependent Claim
79 words
Process according to claim 33, whereby in the photoelectric scanning of the copy original, a strip comprising a plurality of scanning regions of the copy original is always measured at any on time, such that measuring light originating in said strip is spectrally decomposed, and reproduced on a field of photosensors arranged in rows and columns, so that the photosensors belonging to one row are exposed to light from the same scanning region but having different wave length ranges.
Claim 61
Dependent Claim
63 words
Process according to claim 32, wherein said step of determining first color extract values further comprises the steps of: decomposing measuring light which originates in each of the scanning regions of the copy original into a plurality of narrow spectral regions; measuring a spectral value for each spectral region; and evaluating spectral sensitivity variations of the copy material and integrating the spectral values.
Claim 62
Dependent Claim
26 words
Process according to claim 58, wherein said first extract values are determined by weighting spectral sensitivity variations of the copy material and summing the spectral values.
Claim 63
Dependent Claim
48 words
Process according to claim 59, wherein the measurement of the spectral values is carried out in a coarser wave length grid with a lower resolution than is used in the evaluation and integration of the spectral values, and wherein intermediate spectral values which are not measured, are interpolated.
Claim 64
Dependent Claim
78 words
Process according to claim 32, whereby in the photoelectric scanning of the copy original, a strip comprising a plurality of scanning regions of the copy original is always measured at any one time, such that measuring light originating in said strip is spectrally decomposed, and reproduced on afield of photosensors arranged in rows and columns, so that the photosensors belonging to one row are exposed to light from the same scanning region but having different wave length ranges.
Claim 65
Dependent Claim
112 words
Photographic color copying apparatus comprising: a projection device for reproducing a copy original on photosensitive copy material; a measuring layout for photoelectrically scanning the original by regions, thereby determining for each scanning region, first color extract values adapted to the spectral sensitivity variations of the copy material; exposure controls cooperating with the measuring layout and the projection device for determining an amount of copying light impacting the copy material; said measuring layout further including: additional means for determining in addition to the first color extract values adapted to the copy material, second, separate color extract values adapted to spectral absorption variations of material of the copy original, for the individual scanning regions.
Claim 66
Dependent Claim
112 words
Photographic color copying apparatus comprising: a projection device for reproducing a copy original on photosensitive copy material; a measuring layout for photoelectrically scanning the original by regions, thereby determining for each scanning region, first color extract values adapted to the spectral sensitivity variations of the copy material; exposure controls cooperating with the measuring layout and the projection device for determining an amount of copying light impacting the copy material; said measuring layout further including: additional means for determining in addition to the first color extract values adapted to the copy material, second, separate color extract values adapted to spectral absorption variations of material of the copy original, for the individual scanning regions.
Claim 67
Dependent Claim
49 words
Copying apparatus according to claim 62, further comprising means for photoelectrically measuring the scanning regions of the original to obtain measured spectral values in the spectral regions in which the spectral absorption of the colorants of the copying original have their maximum for determining the second color extract values.
Claim 68
Dependent Claim
62 words
Copying apparatus according to claim 63, further comprising means for determining the transmissivity of density of a mask of the copying original and, in determining the second color extract values, standardizing the measured values on the transmissivity or density of the mask by dividing the values measured in the said spectral regions by the transmissivity of the mask in these spectral regions.
Claim 69
Dependent Claim
51 words
Copying apparatus according to claim 64, wherein the individual scanning regions of the original are scanned spectrometrically and the first color extract values adapted to the copy material and/or the second color extract values are determined by the electronic or computer filtering of the spectral values obtained by the spectrometric scanning.
Claim 70
Dependent Claim
31 words
Copying apparatus according to claim 65, wherein the spectral values, in particular those of the mask in the case of negative films, are evaluated for recognizing the manufacture of the original.
Claim 71
Dependent Claim
46 words
Copying apparatus according to claim 66, wherein the spectral values are standardized on the spectral transmissivity or density of the mask of the material of the original, and the evaluation to recognize the original material is carried out on the basis of the standardized spectral values.
Claim 72
Dependent Claim
60 words
Copying apparatus according to claim 64, wherein said measuring layout for determining first color extract values decomposes measuring light which originates in each of the scanning regions of the copy original into a plurality of narrow spectral regions; measures a spectral value for each spectral region; and evaluates spectral sensitivity variations of the copy material and integrates the spectral values.
Claim 73
Dependent Claim
28 words
Copying apparatus according to claim 68, wherein said first color extract values are determined by weighting spectral sensitivity variations of the copy material and summing the spectral values.
Claim 74
Dependent Claim
49 words
Copying apparatus according to claim 69, wherein the measurement of the spectral values is carried out in a coarser wave length grid with a lower resolution than is used in the evaluation and integration of the spectral values, and wherein intermediate spectral values which are not measured are interpolated.
Claim 75
Dependent Claim
60 words
Copying apparatus according to claim 65, wherein said measuring layout for determining first color extract values decomposes measuring light which originates in each of the scanning regions of the copy original into a plurality of narrow spectral regions; measures a spectral value for each spectral region; and evaluates spectral sensitivity variations of the copy material and integrates the spectral values.
Claim 76
Dependent Claim
27 words
Copying apparatus according to claim 71, wherein said first extract values are determined by weighting spectral sensitivity variations of the copy material and summing the spectral values.
Claim 77
Dependent Claim
49 words
Copying apparatus according to claim 72, wherein the measurement of the spectral values is carried out in a coarser wave length grid with a lower resolution than is used in the evaluation and integration of the spectral values, and wherein intermediate spectral values which are not measured are interpolated.
Claim 78
Dependent Claim
80 words
Copying apparatus according to claim 65, whereby in the photoelectric scanning of the copy original, a strip comprising a plurality of scanning regions of the copy original is always measured at any one time, such that measuring light originating in said strip is spectrally decomposed, and reproduced on a field of photosensors arranged in rows and columns, so that the photosensors belonging to one row are exposed to light from the same scanning region but having different wave length ranges.
Claim 79
Dependent Claim
80 words
Copying apparatus according to claim 64, whereby in the photoelectric scanning of the copy original, a strip comprising a plurality of scanning regions of the copy original is always measured at any one time, such that measuring light originating in said strip is spectrally decomposed, and reproduced on a field of photosensors arranged in rows and columns, so that the photosensors belonging to one row are exposed to light from the same scanning region but having different wave length ranges.
Claim 80
Dependent Claim
45 words
Copying apparatus according to claim 63, further comprising means means for determining the transmissivity or density of a mask of the copying original and, in determining the second color extract values, reducing the measured values by the density of the mask in said spectral regions.
Claim 81
Dependent Claim
51 words
Copying apparatus according to claim 76, wherein the individual scanning regions of the original are scanned spectrometrically and the first color extract values adapted to the copy material and/or the second color extract values are determined by the electronic or computer filtering of the spectral values obtained by the spectrometric scanning.
Claim 82
Dependent Claim
31 words
Copying apparatus according to claim 77, wherein the spectral values, in particular those of the mask in the case of negative films, are evaluated for recognizing the manufacture of the original.
Claim 83
Dependent Claim
46 words
Copying apparatus according to claim 78, wherein the spectral values are standardized on the spectral transmissivity or density of the mask of the material of the original, and the evaluation to recognize the original material is carried out on the basis of the standardized spectral values.
Claim 84
Dependent Claim
30 words
Copying apparatus according to claim 63, wherein said spectral regions are located at approximately 450 nm, 550 nm and 695 nm, each with a band width of about 10 nm.
Claim 85
Dependent Claim
51 words
Copying apparatus according to claim 80, wherein the individual scanning regions of the original are scanned spectrometrically and the first color extract values adapted to the copy material and/or the second color extract values are determined by the electronic or computer filtering of the spectral values obtained by the spectrometric scanning.
Claim 86
Dependent Claim
31 words
Copying apparatus according to claim 81, wherein the spectral values, in particular those of the mask in the case of negative films, are evaluated for recognizing the manufacture of the original.
Claim 87
Dependent Claim
46 words
Copying apparatus according to claim 82, wherein the spectral values are standardized on the spectral transmissivity or density of the mask of the material of the original, and the evaluation to recognize the original material is carried out on the basis of the standardized spectral values.
Claim 88
Dependent Claim
80 words
Copying apparatus according to claim 63, whereby in the photoelectric scanning of the copy original, a strip comprising a plurality of scanning regions of the copy original is always measured at any one time, such that measuring light originating in said strip is spectrally decomposed, and reproduced on a field of photosensors arranged in rows and columns, so that the photosensors belonging to one row are exposed to light from the same scanning region but having different wave length ranges.
Claim 89
Dependent Claim
60 words
Copying apparatus according to claim 62, wherein said measuring layout for determining first color extract values decomposes measuring light which originates in each of the scanning regions of the copy original into a plurality of narrow spectral regions; measures a spectral value for each spectral region; and evaluates spectral sensitivity variations of the copy material and integrates the spectral values.
Claim 90
Dependent Claim
27 words
Copying apparatus according to claim 85, wherein said first extract values are determined by weighting spectral sensitivity variations of the copy material and summing the spectral values.
Claim 91
Dependent Claim
49 words
Copying apparatus according to claim 86, wherein the measurement of the spectral values is carried out in a coarser wave length grid with a lower resolution than is used in the evaluation and integration of the spectral values, and wherein intermediate spectral values which are not measured are interpolated.
Claim 92
Dependent Claim
60 words
Copying apparatus according to claim 62, wherein said measuring layout for determining first color extract values decomposes measuring light which originates in each of the scanning regions of the copy original into a plurality of narrow spectral regions; measures a spectral value for each spectral region; and evaluates spectral sensitivity variations of the copy material and integrates the spectral values.
Claim 93
Dependent Claim
27 words
Copying apparatus according to claim 88, wherein said first extract values are determined by weighting spectral sensitivity variations of the copy material and summing the spectral values.
Claim 94
Dependent Claim
49 words
Copying apparatus according to claim 89, wherein the measurement of the spectral values is carried out in a coarser wave length grid with a lower resolution than is used in the evaluation and integration of the spectral values, and wherein intermediate spectral values which are not measured, are interpolated.
Claim 95
Dependent Claim
80 words
Copying apparatus according to claim 62, whereby in the photoelectric scanning of the copy original, a strip comprising a plurality of scanning regions of the copy original is always measured at any one time, such that measuring light originating in said strip is spectrally decomposed, and reproduced on a field of photosensors arranged in rows and columns, so that the photosensors belonging to one row are exposed to light from the same scanning region but having different wave length ranges.
References Cited (Backward Citations)
US3369449A
Cited
US3542471A
Cited
DE1597066A1
Cited
DE1916989A1
Cited
GB1369864A
Cited
US3942154A
Cited
US4101216A
Cited
US4092067A
Cited
DE2652287A1
Cited
US4344708A
Cited
DE2632715A1
Cited
DE2654943A1
Cited
US4166588A
Cited
US4279505A
Cited
US4270861A
Cited
JPS57136639A
Cited
US4416539A
Cited
EP0103583A1
Cited
DE3408765A1
Cited
US4566786A
Cited
DE3543076A1
Cited
DE3604964A1
Cited
DE3615342A1
Cited
US4709259A
Cited
US4779987A
Cited
US4668082A
Cited
US4676628A
Cited
US4757351A
Cited
DE3737775A1
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1993-08-20 | 1994-02-19 | 1994-08-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-08-20 | 1998-02-19 | 1998-08-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-08-20 | 2002-02-19 | 2002-08-21 | $7700.00 | Window Closed / Lapsed |