Patent US1526951A successfully refreshed from Google Patents.
Patent US4737856A successfully refreshed from Google Patents.
US4737856A
Expired / Lapsed
US
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Image processing apparatus
Assignee: Canon Inc
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Filing: 1984-08-23
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Granted: 1988-04-12
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Expires: 2004-08-23
Abstract
Abstract An image processing apparatus has a reading device for reading an original, a conveying device for conveying the original to a predetermined reading position, a first detecting device for detecting the state of the original on the basis of the output of the reading device, and second detecting device for detecting the state of the original conveyed by the conveying device. The first detecting device is used to detect the state of the original when the conveying device is not used.
Inventors
- 👤 Katsuichi Shimizu
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 18:47
CPC Classifications
H; H04; H04N; H04N1/00; H04N1/00567; H04N1/0057; H04N1/00588; H04N1/00591; H04N1/00599; H04N1/00602; H04N1/0061; H04N1/00681; H04N1/00684; H04N1/00702; H04N1/00708; H04N1/0071; H04N1/00729; H04N1/00734; H04N1/00742; H04N1/00755; H04N1/00763; H04N1/00774; H04N1/00779; H04N1/32; H04N1/333
Claims Analysis
Total Claims: 45
Claim 1
Independent Claim
93 words
An image processing apparatus comprising: reading means for reading an original and outputting an image signal; conveying means for conveying the original to a predetermined reading position; selecting means for selecting operation of said conveying means; first detecting means for detecting a size of the original based upon the output signal of said reading means; and second detecting means for detecting a size of the original conveyed by said conveying means; and control means for controlling said second detecting means to detect a size of the original during operation of said conveying means.
Claim 2
Dependent Claim
93 words
An image processing apparatus comprising: reading means for reading an original and outputting an image signal; conveying means for conveying the original to a predetermined reading position; selecting means for selecting operation of said conveying means; first detecting means for detecting a size of the original based upon the output signal of said reading means; and second detecting means for detecting a size of the original conveyed by said conveying means; and control means for controlling said second detecting means to detect a size of the original during operation of said conveying means.
Claim 3
Dependent Claim
33 words
An image processing apparatus according to claim 1, wherein said reading means includes means for scanning the original, and wherein said first detecting means detects the size of the original during a pre-scan.
Claim 4
Dependent Claim
26 words
An image processing apparuats according to claim 1, wherein said control means inhibits operation of said first detecting means upon the operation of said conveying means.
Claim 5
Dependent Claim
50 words
An image processing apparatus according to claim 1, further comprising means for detecting the density of the original and means for controlling an area of the original where the density is detected which area is selected in response to the size detected by at least one of said detecting means.
Claim 6
Dependent Claim
76 words
An image processing apparatus comprising: reading means for reading an origial and outputting an image signal; detecting means for detecting a density of the original based upon an output of said reading means; and control means, responsive to the original, for controlling an area of the original to be detected by said detecting means; said control means controlling said detecting means such that said detecting means detects the density of an inner area of the original.
Claim 7
Dependent Claim
76 words
An image processing apparatus comprising: reading means for reading an origial and outputting an image signal; detecting means for detecting a density of the original based upon an output of said reading means; and control means, responsive to the original, for controlling an area of the original to be detected by said detecting means; said control means controlling said detecting means such that said detecting means detects the density of an inner area of the original.
Claim 8
Dependent Claim
36 words
An image processing apparatus according to claim 5, further comprising means for detecting a size of the original and wherein said control means controls said detecting means in accordance with the detected size of the orginal.
Claim 9
Dependent Claim
19 words
An image processing apparatus according to claim 6, further having means for automatically detecting a size of the original.
Claim 10
Dependent Claim
19 words
An image processing apparatus according to claim 5, wherein said detecting means detects a maximum density of the original.
Claim 11
Dependent Claim
19 words
An image processing apparatus according to claim 5, wherein said detecting means detects a minimum density of the original.
Claim 12
Dependent Claim
45 words
An image processing means according to claim 5, further comprising means for detecting a supported position of the original with respect to a predetermined read position, wherein said control means controls said density detecting means in accordance with the detected supported position of the original.
Claim 13
Dependent Claim
36 words
An image processing apparatus according to claim 5, further comprising decision means, responsive to the density detected by said detecting means, for deciding a processing condition for processing the image signal output from said reading means.
Claim 14
Dependent Claim
20 words
An image processing apparatus according to claim 11, wherein said processing condition is a threshold for binarizing the image signal.
Claim 15
Dependent Claim
68 words
An image processing apparatus comprising: reading means for reading an original and outputting an image signal first, detecting means for detecting a size of the original; and second detecting means for detecting a density of the original in response to the output signal of said reading means; wherein said second detecting means is controlled in response to the size of the original detected by said first detecting means.
Claim 16
Dependent Claim
68 words
An image processing apparatus comprising: reading means for reading an original and outputting an image signal first, detecting means for detecting a size of the original; and second detecting means for detecting a density of the original in response to the output signal of said reading means; wherein said second detecting means is controlled in response to the size of the original detected by said first detecting means.
Claim 17
Dependent Claim
25 words
An image processing apparatus according to claim 13, wherein said control means controls said second detecting means to control a detection area of the original.
Claim 18
Dependent Claim
21 words
An image processing apparatus according to claim 13, wherein said control means controls a detection time of said second detecting means.
Claim 19
Dependent Claim
27 words
An image processing apparatus according to claim 13, wherein the detection by said first detecting means is executed prior to a detection by said second detecting means.
Claim 20
Dependent Claim
37 words
An image processing apparatus according to claim 13, further comprising decision means, responsive to the density detected by said second detecting means, for deciding a processing condition for processing the image signal output from said reading means.
Claim 21
Dependent Claim
20 words
An image processing apparatus according to claim 17, wherein said processing condition is a threshold for binarizing the image signal.
Claim 22
Dependent Claim
20 words
An image processing apparatus according to claim 13, wherein said second detecting means detects a maximum density of the original.
Claim 23
Dependent Claim
20 words
An image processing apparatus according to claim 13, wherein said second detecting means detects a minimum density of the original.
Claim 24
Dependent Claim
78 words
An image processing apparatus comprising a platen for supporting an original thereon; reading means for reading the original and outputting an image signal; first detecting means for detecting a supported position of the original on said platen; second detecting means for detecting a density of the original in response to the output signal from said reading means; and control means for controlling said second detecting means in response to the supported position detected by said first detecting means.
Claim 25
Dependent Claim
78 words
An image processing apparatus comprising a platen for supporting an original thereon; reading means for reading the original and outputting an image signal; first detecting means for detecting a supported position of the original on said platen; second detecting means for detecting a density of the original in response to the output signal from said reading means; and control means for controlling said second detecting means in response to the supported position detected by said first detecting means.
Claim 26
Dependent Claim
29 words
An image processing apparatus according to claim 21, wherein said control means controls said second detecting means to control an area necessary to detect the density of the original.
Claim 27
Dependent Claim
21 words
An image processing apparatus according to claim 21, wherein said control means controls a detection time for said second detecting means.
Claim 28
Dependent Claim
27 words
An image processing apparatus according to claim 21, wherein a detection by said first detecting means is executed prior to a detection by said second detecting means.
Claim 29
Dependent Claim
20 words
An image processing apparatus according to claim 21, wherein said second detecting means detects a maximum density of said original.
Claim 30
Dependent Claim
20 words
An image processing apparatus according to claim 21, wherein said second detecting means detects a minimum density of said original.
Claim 31
Dependent Claim
37 words
An image processing apparatus according to claim 21, further comprising decision means, responsive to the density detected by said second detecting means, for deciding a processing condition for processing the image signal output from said reading means.
Claim 32
Dependent Claim
20 words
An image processing apparatus according to claim 27, wherein said processing condition is a threshold for binarizing the image signal.
Claim 33
Dependent Claim
105 words
An image processing apparatus comprising: feeding means for feeding an original to a predetermined position where the original is read; reading means for reading the original fed to the predetermined position and for outputting an image signal; first detecting means for detecting a size of the original while being fed by said feeding means; second detecting means for detecting a density of the original being fed by said feeding means in response to the image signal of said reading means; and control means responsive to the size of the original, for controlling an area of the original to be detected by said second detecting means.
Claim 34
Dependent Claim
105 words
An image processing apparatus comprising: feeding means for feeding an original to a predetermined position where the original is read; reading means for reading the original fed to the predetermined position and for outputting an image signal; first detecting means for detecting a size of the original while being fed by said feeding means; second detecting means for detecting a density of the original being fed by said feeding means in response to the image signal of said reading means; and control means responsive to the size of the original, for controlling an area of the original to be detected by said second detecting means.
Claim 35
Dependent Claim
37 words
An image processing apparatus according to claim 29, further comprising decision means, responsive to the density detected by said second detecting means, for deciding a processing condition for processing the image signal output from said reading means.
Claim 36
Dependent Claim
20 words
An image processing apparatus according to claim 30, wherein said processing condition is a threshold for binarizing the image signal.
Claim 37
Dependent Claim
81 words
An image processing apparatus comprising conveying means for conveying an original to a predetermined reading position; first detecting means for detecting the size of an original at the reading position; second detecting means for detecting the size of the original which is being conveyed by said conveying means; scanning means for scanning the original at the reading position; and control means for controlling said scanning means in response to an output from either one of said first and second detecting means.
Claim 38
Dependent Claim
81 words
An image processing apparatus comprising conveying means for conveying an original to a predetermined reading position; first detecting means for detecting the size of an original at the reading position; second detecting means for detecting the size of the original which is being conveyed by said conveying means; scanning means for scanning the original at the reading position; and control means for controlling said scanning means in response to an output from either one of said first and second detecting means.
Claim 39
Dependent Claim
48 words
An image processing apparatus according to claim 32, further comprising density detecting means for detecting the density of the original at the reading position and control means for controlling said density detecting means in response to the output from either one of said first and second detecting means.
Claim 40
Dependent Claim
32 words
An image processing apparatus according to claim 32, wherein said control means controls said scanning means in response to the output from said second detecting means when said conveying means is utilized.
Claim 41
Dependent Claim
33 words
An image processing apparatus according to claim 32, wherein said control means controls said scanning means in response to the output from said first detecting means when said conveying means is not utilized.
Claim 42
Dependent Claim
20 words
An image processing apparatus according to claim 32, wherein said control means controls a scanning distance of said scanning means.
Claim 43
Dependent Claim
56 words
An image processing apparatus according to claim 32, further comprising image forming means for forming an image of the original scanned by said scanning means on a recording medium, wherein said control means controls an image forming magnification of the image in response to either one of the outputs from said first and second detecting means.
Claim 44
Dependent Claim
55 words
An image processing apparatus according to claim 32, further comprising image forming means for forming an image of the original scanned by said scanning means on a recording medium, wherein said control means selects the size of the recording medium in response to either one of the outputs from said first and second detecting means.
Claim 45
Dependent Claim
53 words
An image processing apparatus according to claim 32, wherein said scanning means comprising reading means for reading the original in order to output an image signal and wherein said first detecting means detects the size of the original in response to the image signal output by said scanning means by prescanning the original.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1991-04-12 | 1991-10-12 | 1992-04-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-04-12 | 1995-10-12 | 1996-04-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-04-12 | 1999-10-12 | 2000-04-12 | $7700.00 | Window Closed / Lapsed |