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US6285465B1
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Facsimile apparatus which corrects read image data based on a difference between a predetermined storage time and a recording time of the read image data
Assignee: Canon Inc
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Filing: 1998-01-21
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Granted: 2001-09-04
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Expires: 2018-01-21
Abstract
Abstract A facsimile apparatus comprises read unit for reading a document sheet image, a memory for storing the image data read by the read unit, a recorder for recording the image data on a record sheet, a selection unit for selecting a first copy mode in which the image data read by the read means is stored in the memory, and after the completion of the storing of at least one page of image data, the image data read from the memory starts to be recorded by the recorder, and a second copy mode in which the image data read by the read unit starts to be recorded by the recorder before the completion of the reading of one page of document sheet a unit for asynchronously conducting the reading of the image data by the read unit and the recording of the image data by the recorder when the select unit selects the first copy mode, and synchronously conducting the reading of the image data by the read unit and the recording by the recorder when the select unit selects the second copy mode.
Inventors
- 👤 Takehiro Yoshida
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 14:34
CPC Classifications
H; H04; H04N; H04N1/00; H04N1/32; H04N1/32358; H04N1/32363; H04N1/32368
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
134 words
An image processing apparatus, comprising: reading means for reading a document sheet line by line to derive image data, said reading means storing one line of image data at a predetermined storage time, recording means for recording the image data on a record sheet line by line, said recording means recording one line of image data at a recording time longer than the predetermined storage time; and correcting means for correcting the image data read by said reading means based on a difference between the predetermined storage time and the recording time, wherein said correcting means corrects the image data read by the reading means by changing the predetermined storage time to synchronize a reading process of said reading means for one line with a recording process of said recording means for one line.
Claim 2
Dependent Claim
134 words
An image processing apparatus, comprising: reading means for reading a document sheet line by line to derive image data, said reading means storing one line of image data at a predetermined storage time, recording means for recording the image data on a record sheet line by line, said recording means recording one line of image data at a recording time longer than the predetermined storage time; and correcting means for correcting the image data read by said reading means based on a difference between the predetermined storage time and the recording time, wherein said correcting means corrects the image data read by the reading means by changing the predetermined storage time to synchronize a reading process of said reading means for one line with a recording process of said recording means for one line.
Claim 3
Dependent Claim
40 words
An apparatus according to claim 1 , wherein said correcting means corrects the image data read by the reading means by causing said reading means to derive one line of the image data for one period of the recording time.
Claim 4
Dependent Claim
15 words
An apparatus according to claim 1 , wherein said recording means is an electrophotographic printer.
Claim 5
Dependent Claim
16 words
An apparatus according to claim 1 , wherein said image processing apparatus is a facsimile apparatus.
Claim 6
Dependent Claim
29 words
An apparatus according to claim 1 , wherein said correcting means causes said reading means to start storing one line of image data in synchronism with the recording time.
Claim 7
Dependent Claim
137 words
An image processing method, comprising: a reading step of reading a document sheet line by line to derive image data, said reading step storing one line of image data at a predetermined storage time, a recording step of recording the image data on a record sheet line by line, said recording step recording one line of image data at a recording time longer than the predetermined storage time; and a correcting step of correcting the image data read by said reading step based on a difference between the predetermined storage time and the recording time, wherein said correcting step corrects the image data read by said reading step by changing the predetermined storage time to synchronize a reading process by said reading step for one line with a recording process of said recording step for one line.
Claim 8
Dependent Claim
137 words
An image processing method, comprising: a reading step of reading a document sheet line by line to derive image data, said reading step storing one line of image data at a predetermined storage time, a recording step of recording the image data on a record sheet line by line, said recording step recording one line of image data at a recording time longer than the predetermined storage time; and a correcting step of correcting the image data read by said reading step based on a difference between the predetermined storage time and the recording time, wherein said correcting step corrects the image data read by said reading step by changing the predetermined storage time to synchronize a reading process by said reading step for one line with a recording process of said recording step for one line.
Claim 9
Dependent Claim
40 words
A method according to claim 6 , wherein said correcting step corrects the image data read by said reading step by causing said reading step to derive one line of the image data for one period of the recording time.
Claim 10
Dependent Claim
18 words
A method according to claim 6 , wherein said image recording step is performed by an electrophotographic printer.
Claim 11
Dependent Claim
18 words
An apparatus according to claim 6 , wherein said image processing method is performed by a facsimile apparatus.
Claim 12
Dependent Claim
29 words
A method according to claim 6 , wherein said correcting step causes said reading step to start storing one line of image data in synchronism with the recording time.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
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| 3.5 Years (Year 4) | 2004-09-03 | 2005-03-05 | 2005-09-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2008-09-03 | 2009-03-05 | 2009-09-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2012-09-03 | 2013-03-05 | 2013-09-04 | $7700.00 | Window Closed / Lapsed |