US5121230A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Image reading apparatus having adjusting circuits for matching the level of and compensating for fluctuation among a plurality of sensing elements
Assignee: Canon Inc
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Filing: 1988-01-14
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Granted: 1992-06-09
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Expires: 2008-01-14
Abstract
Abstract An image reading apparatus such as a color copying apparatus has a plurality of sensing CCD chips for converting an image of an object into an electrical signal, each sensing CCD chip having a plurality of sensing elements. The apparatus also has a circuit for converting the electrical signal into digital data. A first adjusting circuit is provided for conducting either an operation for obtaining level matching of the electrical signal converted by the sensing chips, or an operation for controlling the gain of the electrical signal converted by the sensing chips. The apparatus further has a second adjusting circuit for effecting compensation for fluctuation of characteristics of the sensing elements of the sensing chips, by making use of the digital data converted by the converting circuit, the second adjusting circuit being adapted for effecting the compensation on the basis of electrical signals which are produced as a result of conversion by the sensing chips from two objects having different levels of density from each other, such as white and black levels.
Inventors
- 👤 Toshio Honma
- 👤 Nobuo Matsuoka
- 👤 Shizuo Hasegawa
- 👤 Yasumichi Suzuki
- 👤 Hiroshi Itagaki
- 👤 Kenji Sasahara
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 15:22
CPC Classifications
H; H04; H04N; H04N1/00; H04N1/40; H04N1/407; H04N1/4076; H04N1/401
Claims Analysis
Total Claims: 84
Claim 1
Independent Claim
189 words
An image reading apparatus comprising: a) a plurality of sensing means for converting an image of an object into an electrical signal, each sensing means consisting of a plurality of sensing elements and respectively reading a different portion on the subject; b) means for converting said electrical signal into digital data; c) first adjusting means for conducting either one of an operation for obtaining level matching of said electrical signal converted by said sensing means and an operation for controlling the gain of said electrical signal converted by said sensing means; and d) second adjusting means for effecting compensation for fluctuation of characteristics in said plurality of sensing elements in the same one of said sensing means, by making use of said digital data converted by said converting means, said second adjusting means being adapted for effecting said compensation on the basis of electrical signals which are produced as a result of conversion by said sensing means from two objects having different levels of density from each other, wherein an adjusting condition of said second adjusting means can be independently set for each of said plurality of sensing means.
Claim 2
Dependent Claim
189 words
An image reading apparatus comprising: a) a plurality of sensing means for converting an image of an object into an electrical signal, each sensing means consisting of a plurality of sensing elements and respectively reading a different portion on the subject; b) means for converting said electrical signal into digital data; c) first adjusting means for conducting either one of an operation for obtaining level matching of said electrical signal converted by said sensing means and an operation for controlling the gain of said electrical signal converted by said sensing means; and d) second adjusting means for effecting compensation for fluctuation of characteristics in said plurality of sensing elements in the same one of said sensing means, by making use of said digital data converted by said converting means, said second adjusting means being adapted for effecting said compensation on the basis of electrical signals which are produced as a result of conversion by said sensing means from two objects having different levels of density from each other, wherein an adjusting condition of said second adjusting means can be independently set for each of said plurality of sensing means.
Claim 3
Dependent Claim
20 words
An image reading apparatus according to claim 1, wherein said plurality of sensing means are arranged in a linear form.
Claim 4
Dependent Claim
41 words
An image reading apparatus according to claim 1, wherein said first adjusting means includes clamp means for clamping said electrical signal at a predetermined level, said operation for obtaining level matching of said electrical signals is conducted by said clamp means.
Claim 5
Dependent Claim
48 words
An image reading apparatus according to claim 1, wherein said second adjusting means includes amplifying means for amplifying said electrical signal with a predetermined amplification factor, said operation for controlling the gain of said electrical signal performed by said first adjusting means is conducted by said amplifying means.
Claim 6
Dependent Claim
58 words
An image reading apparatus according to claim 1, wherein said second adjusting means is adapted for effecting said compensation for fluctuation of said sensing elements in accordance with electrical signals obtained through conversion by said sensing means from a first object of a first density and a second object of a second density higher than said first density.
Claim 7
Dependent Claim
75 words
An apparatus according to claim 1, wherein said second adjusting means includes: a) first memory means for storing said electrical signal obtained through conversion by said sensing means from said first object; b) second memory means for storing said electrical signal obtained through conversion by said sensing means from said second object; and c) correcting means for correcting said digital data in accordance with said electrical signals stored in said first and second memory means.
Claim 8
Independent Claim
101 words
An apparatus comprising: a) means for converting an image of an object into an electrical signal, said converting means having a plurality of converting elements; b) means for adjusting said electrical signal according to information corresponding to fluctuation of said converting elements; and c) memory means for storing said information corresponding to the fluctuation of said converting elements, wherein said information is information which is obtained by a computation of correlation between a remarked pixel and a pixel adjacent to said remarked pixel in said converting element, and said electrical signal converted by said converting means is used for said computation.
Claim 9
Independent Claim
101 words
An apparatus comprising: a) means for converting an image of an object into an electrical signal, said converting means having a plurality of converting elements; b) means for adjusting said electrical signal according to information corresponding to fluctuation of said converting elements; and c) memory means for storing said information corresponding to the fluctuation of said converting elements, wherein said information is information which is obtained by a computation of correlation between a remarked pixel and a pixel adjacent to said remarked pixel in said converting element, and said electrical signal converted by said converting means is used for said computation.
Claim 10
Dependent Claim
21 words
An apparatus according to claim 7, wherein said fluctuation of said elements is fluctuation of converting characteristics of said converting elements.
Claim 11
Dependent Claim
28 words
An apparatus according to claim 7, further comprising: computing means for computing said information concerning correlation between the remarked pixel and a pixel adjacent to said remarked pixel.
Claim 12
Dependent Claim
25 words
An apparatus according to claim 7, wherein said fluctuation of said converting elements is the fluctuation in the dark current characteristics of said converting elements.
Claim 13
Dependent Claim
36 words
An apparatus according to claim 7, further comprising: digital conversion means for converting said electrical signal into a digital value, wherein said adjusting means adjusts the digital value obtained through conversion by said digital conversion means.
Claim 14
Dependent Claim
40 words
An apparatus according to claim 7, further comprising: digital conversion means for converting said electrical signal into a digital value, wherein said information is formed by a computation from the digital value obtained through conversion by said digital conversion means.
Claim 15
Dependent Claim
32 words
An apparatus according to claim 7, wherein said information is obtained in accordance with said electrical signal produced through conversion by said conversion means from an object of a high density level.
Claim 16
Dependent Claim
33 words
An apparatus according to claim 7, wherein said information is obtained in accordance with said electrical signal produced through conversion by said conversion means from an object of a low level of density.
Claim 17
Dependent Claim
272 words
An image reading apparatus comprising: a) a plurality of sensing means for converting an image of an object into an electrical signal, each sensing means having a plurality of sensing elements; b) means for converting said electrical signal into digital data; c) first adjusting means for conducting either one of an operation for obtaining level matching of said electrical signal converted by said sensing means and an operation for controlling the gain of said electrical signal converted by said sensing means; and d) second adjusting means for effecting compensation for fluctuation of characteristics of said sensing elements of said sensing means, by making use of said digital data converted by said converting means, said second adjusting means being adapted for effecting said compensation on the basis of electrical signals which are produced as a result of conversion by said sensing means from two objects having different levels of density from each other, wherein said second adjusting means is adapted for effecting said compensation for fluctuation of said sensing elements in accordance with electrical signals obtained through conversion by said sensing means from a first object of a first density and a second object of a second density higher than said first density, and wherein said second adjusting means includes: a) first memory means for storing said electrical signal obtained through conversion by said sensing means from said first object; b) second memory means for storing said electrical signal obtained through conversion by said sensing means from said second object; and c) correcting means for correcting said digital data in accordance with said electrical signals stored in said first and second memory means.
Claim 18
Dependent Claim
272 words
An image reading apparatus comprising: a) a plurality of sensing means for converting an image of an object into an electrical signal, each sensing means having a plurality of sensing elements; b) means for converting said electrical signal into digital data; c) first adjusting means for conducting either one of an operation for obtaining level matching of said electrical signal converted by said sensing means and an operation for controlling the gain of said electrical signal converted by said sensing means; and d) second adjusting means for effecting compensation for fluctuation of characteristics of said sensing elements of said sensing means, by making use of said digital data converted by said converting means, said second adjusting means being adapted for effecting said compensation on the basis of electrical signals which are produced as a result of conversion by said sensing means from two objects having different levels of density from each other, wherein said second adjusting means is adapted for effecting said compensation for fluctuation of said sensing elements in accordance with electrical signals obtained through conversion by said sensing means from a first object of a first density and a second object of a second density higher than said first density, and wherein said second adjusting means includes: a) first memory means for storing said electrical signal obtained through conversion by said sensing means from said first object; b) second memory means for storing said electrical signal obtained through conversion by said sensing means from said second object; and c) correcting means for correcting said digital data in accordance with said electrical signals stored in said first and second memory means.
Claim 19
Dependent Claim
18 words
An apparatus according to claim 15, wherein said plurality of sensing means are arranged in a linear array.
Claim 20
Dependent Claim
39 words
An apparatus according to claim 15, wherein said first adjusting means includes clamp means for clamping said electrical signal at a predetermined level, said operation for obtaining level matching of said electrical signals being conducted by said clamp means.
Claim 21
Dependent Claim
46 words
An apparatus according to claim 15, wherein said second adjusting means includes amplifying means for amplifying said electrical signal with a predetermined amplification factor, said operation for controlling the gain of said electrical signal performed by said first adjusting means being conducted by said amplifying means.
Claim 22
Independent Claim
145 words
An apparatus comprising: a) means for converting an image of an object into an electrical signal, said converting means having a plurality of converting elements; b) means for adjusting said electrical signal according to information corresponding to fluctuation of said converting elements; c) memory means for storing said information corresponding to the fluctuation of said converting elements, wherein said information is obtained through a computation of correlation between a remarked pixel and a pixel adjacent to said remarked pixel in said converting element; and d) digital conversion means for converting said electrical signal into a digital value, wherein said information is formed by a computation from the digital value obtained through conversion by said digital conversion means, wherein said information is obtained in accordance with the electrical signal produced through conversion by said digital conversion means from an object of a high level of density.
Claim 23
Independent Claim
145 words
An apparatus comprising: a) means for converting an image of an object into an electrical signal, said converting means having a plurality of converting elements; b) means for adjusting said electrical signal according to information corresponding to fluctuation of said converting elements; c) memory means for storing said information corresponding to the fluctuation of said converting elements, wherein said information is obtained through a computation of correlation between a remarked pixel and a pixel adjacent to said remarked pixel in said converting element; and d) digital conversion means for converting said electrical signal into a digital value, wherein said information is formed by a computation from the digital value obtained through conversion by said digital conversion means, wherein said information is obtained in accordance with the electrical signal produced through conversion by said digital conversion means from an object of a high level of density.
Claim 24
Dependent Claim
21 words
An apparatus according to claim 19, wherein said fluctuation of said elements is fluctuation of converting characteristics of said converting elements.
Claim 25
Dependent Claim
28 words
An apparatus according to claim 19, further comprising computing means for computing said information concerning correlation between the remarked pixel and a pixel adjacent to said remarked pixel.
Claim 26
Dependent Claim
24 words
An apparatus according to claim 19, wherein said fluctuation of said converting element is fluctuation in the dark current characteristics of said converting elements.
Claim 27
Dependent Claim
36 words
An apparatus according to claim 19, further comprising digital conversion means for converting said electrical signal into a digital value, wherein said adjusting means adjusts the digital value obtained through conversion by said digital conversion means.
Claim 28
Dependent Claim
39 words
An apparatus according to claim 19, further comprising digital conversion means for converting said electrical signal into a digital value, wherein said information is formed by computation from the digital value obtained through conversion by said digital conversion means.
Claim 29
Independent Claim
145 words
An apparatus comprising: a) means for converting an image of an object into an electrical signal, said converting means having a plurality of converting elements; b) means for adjusting said electrical signal according to information corresponding to fluctuation of said converting elements; c) memory means for storing said information corresponding to the fluctuation of said converting elements, wherein said information is obtained through a computation of correlation between a remarked pixel and a pixel adjacent to said remarked pixel in said converting element; and d) digital conversion means for converting said electrical signal into a digital value, wherein aid information is formed by a computation from the digital value obtained through conversion by said digital conversion means, wherein said information is obtained in accordance with the electrical signal produced through conversion by said digital conversion means from an object of a low level of density.
Claim 30
Independent Claim
145 words
An apparatus comprising: a) means for converting an image of an object into an electrical signal, said converting means having a plurality of converting elements; b) means for adjusting said electrical signal according to information corresponding to fluctuation of said converting elements; c) memory means for storing said information corresponding to the fluctuation of said converting elements, wherein said information is obtained through a computation of correlation between a remarked pixel and a pixel adjacent to said remarked pixel in said converting element; and d) digital conversion means for converting said electrical signal into a digital value, wherein aid information is formed by a computation from the digital value obtained through conversion by said digital conversion means, wherein said information is obtained in accordance with the electrical signal produced through conversion by said digital conversion means from an object of a low level of density.
Claim 31
Dependent Claim
28 words
An apparatus according to claim 25, further comprising computing means for computing said information concerning correlation between the remarked pixel and a pixel adjacent to said remarked pixel.
Claim 32
Dependent Claim
24 words
An apparatus according to claim 25, wherein said fluctuation of said converting elements is fluctuation in the dark current characteristics of said converting elements.
Claim 33
Dependent Claim
36 words
An apparatus according to claim 25, further comprising digital conversion means for converting said electrical signal into a digital value, wherein said adjusting means adjusts the digital value obtained through conversion by said digital conversion means.
Claim 34
Dependent Claim
39 words
An apparatus according to claim 25, further comprising digital conversion means for converting said electrical signal into a digital value, wherein said information is formed by computation from the digital value obtained through conversion by said digital conversion means.
Claim 35
Dependent Claim
108 words
An image reading apparatus comprising: a) a plurality of sensing means for converting an image of an object into an electrical signal, each sensing means consisting of a plurality of sensing elements and respectively reading a different portion on said object; b) means for adjusting said electrical signal according to adjusting information; c) memory means for storing said adjusting information; d) control means for conducting a control as to whether said adjusting information stored in said memory means is to be corrected or not; and e) setting means for manually setting the control operation performed by said control means independently for each of said plurality of sensing means.
Claim 36
Dependent Claim
108 words
An image reading apparatus comprising: a) a plurality of sensing means for converting an image of an object into an electrical signal, each sensing means consisting of a plurality of sensing elements and respectively reading a different portion on said object; b) means for adjusting said electrical signal according to adjusting information; c) memory means for storing said adjusting information; d) control means for conducting a control as to whether said adjusting information stored in said memory means is to be corrected or not; and e) setting means for manually setting the control operation performed by said control means independently for each of said plurality of sensing means.
Claim 37
Dependent Claim
19 words
An apparatus according to claim 30, further comprising: means for generating said adjusting information based on said electrical signal.
Claim 38
Dependent Claim
20 words
An apparatus according to claim 30, wherein said adjusting means adjusts said electrical signal from each of said sensing elements.
Claim 39
Dependent Claim
13 words
An apparatus according to claim 30, wherein said memory means includes a RAM.
Claim 40
Dependent Claim
15 words
An apparatus according to claim 30, wherein said setting means includes a manually operable member.
Claim 41
Dependent Claim
34 words
An apparatus according to claim 30, wherein said converting means is divided into a plurality of converting areas, and said memory means stores at least the adjusting information for each of said converting areas
Claim 42
Dependent Claim
40 words
An apparatus according to claim 31, wherein said generating means is adapted for generating said adjusting information on the basis of said electrical signal obtained through conversion by said sensing means from an object of a high level of density.
Claim 43
Independent Claim
119 words
An apparatus comprising: a) means for converting an image of an object into an electrical signal; b) means for adjusting said electrical signal according to adjusting information; memory means for storing said adjusting information; d) control means for conducting a control as to whether said adjusting information stored in said memory means is to be corrected or not; e) setting means for manually setting the control operation performed by said control means; and f) means for generating said adjusting information based on said electrical signal, wherein said generating means is adapted for generating said adjusting information on the basis of an electrical signal obtained through conversion by said converting means from an object of a high level of density.
Claim 44
Independent Claim
119 words
An apparatus comprising: a) means for converting an image of an object into an electrical signal; b) means for adjusting said electrical signal according to adjusting information; memory means for storing said adjusting information; d) control means for conducting a control as to whether said adjusting information stored in said memory means is to be corrected or not; e) setting means for manually setting the control operation performed by said control means; and f) means for generating said adjusting information based on said electrical signal, wherein said generating means is adapted for generating said adjusting information on the basis of an electrical signal obtained through conversion by said converting means from an object of a high level of density.
Claim 45
Dependent Claim
19 words
An apparatus according to claim 37, further comprising means for generating said adjusting information based on said electrical signal.
Claim 46
Dependent Claim
16 words
An apparatus according to claim 37, wherein said converting means includes a plurality of converting elements.
Claim 47
Dependent Claim
20 words
An apparatus according to claim 39, wherein said adjusting means adjusts said electrical signal from each of said converting elements.
Claim 48
Dependent Claim
13 words
An apparatus according to claim 37, wherein said memory means includes a RAM.
Claim 49
Dependent Claim
15 words
An apparatus according to claim 37, wherein said setting means includes a manually operable member.
Claim 50
Dependent Claim
34 words
An apparatus according to claim 37, wherein said converting means is divided into a plurality of converting areas, and said memory means stores at least the adjusting information for each of said converting areas.
Claim 51
Dependent Claim
227 words
An image reading apparatus comprising: a) a plurality of sensing means for converting an image of an object into an electrical signal, each sensing means consisting of a plurality of sensing elements and respectively reading a different portion on the object; b) means for converting said electrical signal into digital data; and adjusting means for effecting a compensation for fluctuation of characteristics of said plurality of sensing elements in the same one of said sensing means by making use of said digital data converted by said converting means, said adjusting means being adapted for effecting said compensation on the basis of two reference signals respectively representing different density levels, wherein said adjusting means is adapted for effecting said compensation for fluctuation of said sensing elements in accordance with electrical signals obtained through conversion by said sensing means from a first object of a first density and a second object of a second density higher than said first density, and wherein said adjusting means includes: i) first memory means for storing said electrical signal obtained through conversion by said sensing means from the first object; ii) second memory means for storing said electrical signal obtained through conversion by said sensing means from the second object; and iii) correcting means for connecting said digital data in accordance with said electrical signals stored in said first and second memory means.
Claim 52
Dependent Claim
227 words
An image reading apparatus comprising: a) a plurality of sensing means for converting an image of an object into an electrical signal, each sensing means consisting of a plurality of sensing elements and respectively reading a different portion on the object; b) means for converting said electrical signal into digital data; and adjusting means for effecting a compensation for fluctuation of characteristics of said plurality of sensing elements in the same one of said sensing means by making use of said digital data converted by said converting means, said adjusting means being adapted for effecting said compensation on the basis of two reference signals respectively representing different density levels, wherein said adjusting means is adapted for effecting said compensation for fluctuation of said sensing elements in accordance with electrical signals obtained through conversion by said sensing means from a first object of a first density and a second object of a second density higher than said first density, and wherein said adjusting means includes: i) first memory means for storing said electrical signal obtained through conversion by said sensing means from the first object; ii) second memory means for storing said electrical signal obtained through conversion by said sensing means from the second object; and iii) correcting means for connecting said digital data in accordance with said electrical signals stored in said first and second memory means.
Claim 53
Dependent Claim
72 words
An image reading apparatus comprising: a) a plurality of sensing means for converting an image of an object into an electrical signal, each sensing means consisting of a plurality of sensing elements and respectively reading a different portion on the object; b) means for adjusting said electrical signal according to adjusting information; and c) means for displaying an adjusting condition of said adjusting means for each of said plurality of sensing means.
Claim 54
Dependent Claim
72 words
An image reading apparatus comprising: a) a plurality of sensing means for converting an image of an object into an electrical signal, each sensing means consisting of a plurality of sensing elements and respectively reading a different portion on the object; b) means for adjusting said electrical signal according to adjusting information; and c) means for displaying an adjusting condition of said adjusting means for each of said plurality of sensing means.
Claim 55
Dependent Claim
41 words
An apparatus according to claim 45, further comprising: a) memory means for storing said adjusting information; and b) control means for conducting a control as to whether said adjusting information stored in said memory means is to be corrected or not.
Claim 56
Dependent Claim
33 words
An apparatus according to claim 45, wherein said display means is adapted to display whether the present mode of operation is a mode for correcting the adjusting information stored in said memory means.
Claim 57
Dependent Claim
14 words
An apparatus according to claim 45, wherein said display means includes LCD display elements.
Claim 58
Dependent Claim
30 words
An apparatus according to claim 45, wherein said display means is designed to display at least one kind of information in addition to said adjusting condition of said adjusting means.
Claim 59
Dependent Claim
116 words
An image data processing apparatus comprising: a) supply means for supplying analog image data; b) first adjusting means for adjusting the level of the analog image data supplied by said supply means; c) converting means for converting said analog image data into digital image data through a predetermined quantizing step after the adjustment of said analog image data by said first adjusting means; d) second adjusting means for adjusting specific data of said digital image data to a predetermined level; and e) control means for controlling the adjusting condition of said first adjusting means, said control means being adapted for adjusting the level of said analog image data through a step smaller than said quantizing step.
Claim 60
Dependent Claim
116 words
An image data processing apparatus comprising: a) supply means for supplying analog image data; b) first adjusting means for adjusting the level of the analog image data supplied by said supply means; c) converting means for converting said analog image data into digital image data through a predetermined quantizing step after the adjustment of said analog image data by said first adjusting means; d) second adjusting means for adjusting specific data of said digital image data to a predetermined level; and e) control means for controlling the adjusting condition of said first adjusting means, said control means being adapted for adjusting the level of said analog image data through a step smaller than said quantizing step.
Claim 61
Dependent Claim
28 words
An apparatus according to claim 50, wherein said supply means for supplying analog image data includes converting means for converting a radiation image into said analog image data.
Claim 62
Dependent Claim
59 words
An apparatus according to claim 50, wherein said first adjusting means includes: a) clamp means for clamping said analog data at a predetermined level; and b) clamp level adjusting means for adjusting said predetermined level of clamp through a step smaller than said quantizing step; wherein said control means controls said predetermined level of clamp by said clamp means.
Claim 63
Dependent Claim
36 words
An apparatus according to claim 50, wherein said second adjusting means is adapted for adjusting said specific data of said digital data to a predetermined level with an adjusting amount unit corresponding to said quantizing step.
Claim 64
Dependent Claim
110 words
An image reading apparatus comprising: a) a plurality of sensing means for converting an image of an object into an electrical signal, each sensing means consisting of a plurality of sensing elements and respectively reading a different portion on the object; b) means for converting said electrical signal into digital data; and c) adjusting means for effecting a compensation for fluctuation of characteristics in said plurality of sensing elements in the same one of said sensing means by making use of said digital data converted by said converting means, said adjusting means being adapted for effecting said compensation on the basis of two reference signals respectively representing different density levels.
Claim 65
Dependent Claim
110 words
An image reading apparatus comprising: a) a plurality of sensing means for converting an image of an object into an electrical signal, each sensing means consisting of a plurality of sensing elements and respectively reading a different portion on the object; b) means for converting said electrical signal into digital data; and c) adjusting means for effecting a compensation for fluctuation of characteristics in said plurality of sensing elements in the same one of said sensing means by making use of said digital data converted by said converting means, said adjusting means being adapted for effecting said compensation on the basis of two reference signals respectively representing different density levels.
Claim 66
Dependent Claim
18 words
An apparatus according to claim 54, wherein said plurality of sensing means are arranged in a linear array.
Claim 67
Dependent Claim
18 words
An apparatus according to claim 54, wherein said fluctuation is fluctuation of converting characteristics of said sensing elements.
Claim 68
Dependent Claim
55 words
An apparatus according to claim 54, wherein said adjusting means is adapted for effecting said compensation for fluctuation of said sensing elements in accordance with electrical signals obtained through conversion by said sensing means from a first object of a first density and a second object of a second density higher than said first density.
Claim 69
Independent Claim
63 words
An apparatus comprising: a) means for converting an image of an object into an electrical signal; b) means for converting said electrical signal into digital data in a first quantizing; c) means for adjusting said electrical signal according to an adjusting information in a second quantizing finer than said first quantizing; and d) means for displaying an adjusting condition of said adjusting means.
Claim 70
Independent Claim
63 words
An apparatus comprising: a) means for converting an image of an object into an electrical signal; b) means for converting said electrical signal into digital data in a first quantizing; c) means for adjusting said electrical signal according to an adjusting information in a second quantizing finer than said first quantizing; and d) means for displaying an adjusting condition of said adjusting means.
Claim 71
Dependent Claim
41 words
An apparatus according to claim 58, further comprising: e) memory means for storing said adjusting information; and f) control means for conducting a control as to whether said adjusting information stored in said memory means is to be corrected or not.
Claim 72
Dependent Claim
18 words
An apparatus according to claim 58, wherein said converting means is divided into a plurality of converting areas.
Claim 73
Dependent Claim
38 words
An apparatus according to claim 60, wherein said displaying means is adapted to display whether a present mode of operation is a mode for correcting said adjusting information stored in said adjusting information stored in said memory means.
Claim 74
Dependent Claim
14 words
An apparatus according to claim 58, wherein said displaying means includes LCD display elements.
Claim 75
Dependent Claim
30 words
An apparatus according to claim 58, wherein said displaying means is designed to display at least one kind of information in addition to said adjusting condition of said adjusting means.
Claim 76
Dependent Claim
92 words
A color image reading apparatus comprising: a) a plurality of sensing means for converting a color image of an object into an electrical signal, each sensing means consisting of a plurality of sensing elements; b) means for adjusting said electrical signal according to adjusting information; c) memory means for storing said adjusting information; d) first setting means for automatically setting adjusting information to be stored in said memory means in accordance with said electrical signal; and e) second setting means for manually setting adjusting information to be stored in said memory means.
Claim 77
Dependent Claim
92 words
A color image reading apparatus comprising: a) a plurality of sensing means for converting a color image of an object into an electrical signal, each sensing means consisting of a plurality of sensing elements; b) means for adjusting said electrical signal according to adjusting information; c) memory means for storing said adjusting information; d) first setting means for automatically setting adjusting information to be stored in said memory means in accordance with said electrical signal; and e) second setting means for manually setting adjusting information to be stored in said memory means.
Claim 78
Dependent Claim
31 words
An apparatus according to claim 64, wherein said second setting means manually sets said adjusting information which is set by said first setting means to be stored in said memory means.
Claim 79
Dependent Claim
29 words
An apparatus according to claim 64, wherein said adjusting information set by said first setting means and said adjusting information set by said second setting means are the same.
Claim 80
Dependent Claim
19 words
An apparatus according to claim 64, further comprising means for generating said adjusting information based on said electrical signal.
Claim 81
Dependent Claim
13 words
An apparatus according to claim 64, wherein said memory means includes a RAM.
Claim 82
Dependent Claim
16 words
An apparatus according to claim 64, wherein said second setting means includes a manually operable member.
Claim 83
Dependent Claim
40 words
An apparatus according to claim 67, wherein said generating means is adapted for regenerating said adjusting information on the basis of said electrical signal obtained through conversion by said sensing means from an object of a high level of density.
Claim 84
Dependent Claim
33 words
An apparatus according to claim 64, wherein said plurality of sensing means respectively read different portions on the object, and said second setting means independently sets the adjusting information for each sensing means.
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