Patent US4839698A successfully refreshed from Google Patents.
US4839698A
Expired / Lapsed
US
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Copying apparatus
Assignee: Canon Inc
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Filing: 1987-08-26
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Granted: 1989-06-13
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Expires: 2007-08-26
Abstract
Abstract An image processing apparatus including a plurality of process devices for processing an image. A first control device is provided for controlling at least a first one of the plural process devices in accordance with a control program for an image process, and a second control device is provided for controlling at least a second one of the plural process devices in accordance with the control program. Furthermore, a reset device is provided for detecting a failure of the first and second control device in accordance with an output from one of the two control devices and for resetting both of those two devices.
Inventors
- 👤 Tsuneki Inuzuka
- 👤 Katsuyoshi Maeshima
- 👤 Masahiro Tomosada
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 20:01
CPC Classifications
G; G03; G03G; G03G15/00; G03G15/22; G03G15/28; G03G15/04; G03G15/041; G03G15/30; G03G15/305; G03G21/00; G03G21/14; G03G21/145
Claims Analysis
Total Claims: 24
Claim 1
Independent Claim
103 words
Image processing apparatus comprising: a plurality of process means for processing an image; first control means for controlling at least a first one of said plural process means in accordance with a control program for an image process; second control means for controlling at least a second one of said plural process means in accordance with a control program for an image process; and reset means for detecting a failure of said first and second control means in accordance with an output from one of said first and second control means, and for resetting both of said first and second control means .
Claim 2
Dependent Claim
103 words
Image processing apparatus comprising: a plurality of process means for processing an image; first control means for controlling at least a first one of said plural process means in accordance with a control program for an image process; second control means for controlling at least a second one of said plural process means in accordance with a control program for an image process; and reset means for detecting a failure of said first and second control means in accordance with an output from one of said first and second control means, and for resetting both of said first and second control means .
Claim 3
Dependent Claim
49 words
An apparatus according to claim 1, wherein one of said first and second control means generates periodic pulses in accordance with execution of the control program and said reset means detects failure of said control means if the periodic pulses have not been generated for a predetermined time period.
Claim 4
Dependent Claim
28 words
An apparatus according to claim 1, wherein said reset means resets both of said first and second control means by a reset signal on a common reset line.
Claim 5
Dependent Claim
32 words
Image processing apparatus according to claim 1, wherein each of said first and second control means performs a control operation in response to outputs from the second and first control means, respectively.
Claim 6
Dependent Claim
17 words
An apparatus according to claim 1, wherein said process means include display means or manual instruction means.
Claim 7
Dependent Claim
41 words
An apparatus according to claim 1, wherein each of said first and second control means includes memory means for temporarily storing data for image processing, and clears data stored in said memory means in response to reset by said reset means.
Claim 8
Dependent Claim
42 words
An apparatus according to claim 1, wherein one of said first and second control means detects a failure of the other of said control means and said reset means resets both of said control means in accordance with detection of the failure.
Claim 9
Dependent Claim
140 words
Image processing apparatus comprising: a plurality of process means for processing an image; first control means for controlling at least a first one of said plural process means in accordance with a control program for an image process; second control means for controlling at least a second one of said plural process means in accordance with a control program for said image process; and reset means for detecting a failure of said first and second control means in accordance with an output from the second control means and for resetting said first and second control means; wherein said second control means detects a failure of said first control means on the basis of an output from said first control means, and when said first control means fails, said second control means and said reset means reset said first control means.
Claim 10
Dependent Claim
140 words
Image processing apparatus comprising: a plurality of process means for processing an image; first control means for controlling at least a first one of said plural process means in accordance with a control program for an image process; second control means for controlling at least a second one of said plural process means in accordance with a control program for said image process; and reset means for detecting a failure of said first and second control means in accordance with an output from the second control means and for resetting said first and second control means; wherein said second control means detects a failure of said first control means on the basis of an output from said first control means, and when said first control means fails, said second control means and said reset means reset said first control means.
Claim 11
Dependent Claim
49 words
An apparatus according to claim 8, wherein said second control means generates periodic pulses in accordance with execution of the control program, and detects that said reset means has detected failure of said first control means if the periodic pulses have not been generated for a predetermined time period.
Claim 12
Dependent Claim
25 words
Apparatus according to claim 9, wherein when said second control means detects that said first control means fails by inhibiting generation of the periodic pulses.
Claim 13
Dependent Claim
32 words
Image processing apparatus according to claim 8, wherein each of said first and second control means performs a control operation in response to outputs from the second and first control means, respectively.
Claim 14
Dependent Claim
29 words
Image processing apparatus according to claim 8, wherein said reset means resets both of said first and second control means by a reset signal on a common reset line.
Claim 15
Dependent Claim
25 words
Image processing apparatus according to claim 8, wherein each of said first and second control means includes memory means for storing the control program therein.
Claim 16
Dependent Claim
17 words
An apparatus according to claim 8, wherein said process means includes display means or manual instructions means.
Claim 17
Dependent Claim
20 words
An apparatus according to claim 1 or 8, wherein said processing means includes a high voltage load for image formation.
Claim 18
Dependent Claim
95 words
Image processing apparatus comprising: a plurality of process means for processing an image; a plurality of computers for controlling said plural process means, said computers sharing in control of said plural process means; detection means for detecting a failure of at least one of said plural computers on the basis of an output signal from one of said plural computers; and reset means for resetting said plural computers in response to detection of failure by said detection means; wherein said reset means resets said plural computers when at least one of said plural computers fails.
Claim 19
Dependent Claim
95 words
Image processing apparatus comprising: a plurality of process means for processing an image; a plurality of computers for controlling said plural process means, said computers sharing in control of said plural process means; detection means for detecting a failure of at least one of said plural computers on the basis of an output signal from one of said plural computers; and reset means for resetting said plural computers in response to detection of failure by said detection means; wherein said reset means resets said plural computers when at least one of said plural computers fails.
Claim 20
Dependent Claim
22 words
Apparatus according to claim 16, wherein said reset means resets said plural computers by a reset signal on a common reset line.
Claim 21
Dependent Claim
12 words
Apparatus according to claim 16, wherein said plural computers comprise two computers.
Claim 22
Dependent Claim
23 words
Apparatus according to claim 18, wherein each of said two computers performs a control operation in response to outputs from said two computers.
Claim 23
Dependent Claim
61 words
Apparatus according to claim 16, wherein each of said plural computers performs a control operation in accordance with execution of a control program, one of said plural computers generates periodic pulses in accordance with execution of the control program, and said detection means detects that said computers fail if the periodic pulses have not been generated for a predetermined time period.
Claim 24
Dependent Claim
24 words
Apparatus according to claim 2, 9, 20, wherein said plural process means includes display means and said periodic pulses for driving said display means.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1992-06-12 | 1992-12-12 | 1993-06-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-06-12 | 1996-12-12 | 1997-06-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-06-12 | 2000-12-12 | 2001-06-13 | $7700.00 | Window Closed / Lapsed |