US5737503A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus and method for print control
Assignee: Canon Inc
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Filing: 1996-05-06
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Granted: 1998-04-07
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Expires: 2016-05-06
Abstract
Abstract A print control device allows image data to be generated from intermediate data and printed by a printing unit. The print control device comprises generating means for generating image data from intermediate data memorized in an intermediate buffer, a band raster buffer for memorizing said image data generated by said generating means, a cache buffer for allowing cache of said image data generated by said generating means, and control means for reserving said intermediate buffer for memorizing said intermediate data by extending said band raster buffer to a full-raster buffer of one page or deleting said cache buffer, when the capacity of said intermediate buffer is insufficient.
Inventors
- 👤 Keisuke Mitani
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-10 02:10
CPC Classifications
G; G06; G06K; G06K15/00; G06K15/02; G06K2215/00; G06K2215/0002; G06K2215/0005; G06K2215/0014; G06K2215/0062; G06K2215/0065
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
106 words
A print control device which allows image data to be generated from intermediate data and printed by a printing unit, comprising: generating means for generating said image data from said intermediate data memorized in an intermediate buffer; a band raster buffer for memorizing said image data generated by said generating means; a cache buffer for allowing cache of said image data generated by said generating means; and control means for reserving said intermediate buffer for memorizing said intermediate data by extending said band raster buffer to a full-raster buffer of one page or deleting said cache buffer, when the capacity of said intermediate buffer is insufficient.
Claim 2
Dependent Claim
106 words
A print control device which allows image data to be generated from intermediate data and printed by a printing unit, comprising: generating means for generating said image data from said intermediate data memorized in an intermediate buffer; a band raster buffer for memorizing said image data generated by said generating means; a cache buffer for allowing cache of said image data generated by said generating means; and control means for reserving said intermediate buffer for memorizing said intermediate data by extending said band raster buffer to a full-raster buffer of one page or deleting said cache buffer, when the capacity of said intermediate buffer is insufficient.
Claim 3
Dependent Claim
33 words
A print control device according to claim 1, wherein said intermediate data is processed data of input data received from a host computer so that said image data may be generated more easily.
Claim 4
Dependent Claim
28 words
A print control device according to claim 1, wherein said image data memorized in said band raster buffer or said full-raster buffer is printed by a printer engine.
Claim 5
Dependent Claim
37 words
A print control device according to claim 1, wherein said cache buffer allows cache of image data for an object which is formed into image data at high frequency among intermediate data memorized in said intermediate buffer.
Claim 6
Dependent Claim
26 words
A print control device according to claim 1, wherein said control means has a priority in deleting said cache buffer over extending said band raster buffer.
Claim 7
Dependent Claim
59 words
A print control device according to claim 1, wherein said control means extends said band raster buffer to the full-raster buffer of one page, when the capacity of said intermediate buffer is insufficient, and said generating means generates degraded image data from intermediate data memorized in said intermediate buffer, which degraded image data is stored in said full-raster buffer.
Claim 8
Dependent Claim
20 words
A print control device according to claim 6, wherein said degraded image data is image data with the resolution reduced.
Claim 9
Dependent Claim
20 words
A print control device according to claim 6, wherein said degraded image data is image data with the gradation reduced.
Claim 10
Dependent Claim
91 words
A memory control method in a print control device having a band raster buffer for memorizing image data which is generated from intermediate data, and a cache buffer for allowing cache of image data, comprising: a generation process of generating image data from intermediate data memorized in an intermediate buffer; and a control process for reserving said intermediate buffer for memorizing said intermediate data by extending said band raster buffer to a full-raster buffer of one page or deleting said cache buffer, when the capacity of said intermediate buffer is insufficient.
Claim 11
Dependent Claim
91 words
A memory control method in a print control device having a band raster buffer for memorizing image data which is generated from intermediate data, and a cache buffer for allowing cache of image data, comprising: a generation process of generating image data from intermediate data memorized in an intermediate buffer; and a control process for reserving said intermediate buffer for memorizing said intermediate data by extending said band raster buffer to a full-raster buffer of one page or deleting said cache buffer, when the capacity of said intermediate buffer is insufficient.
Claim 12
Dependent Claim
32 words
A memory control method according to claim 9, said intermediate data is processed data of input data received from a host computer so that said image data may be generated more easily.
Claim 13
Dependent Claim
28 words
A memory control method according to claim 9, wherein said image data memorized in said band raster buffer or said full-raster buffer is printed by a printer engine.
Claim 14
Dependent Claim
37 words
A memory control method according to claim 9, wherein said cache buffer allows cache of image data for an object which is formed into image data at high frequency among intermediate data memorized in said intermediate buffer.
Claim 15
Dependent Claim
26 words
A memory control method according to claim 9, wherein said control process has a priority in deleting said cache buffer over extending said band raster buffer.
Claim 16
Dependent Claim
61 words
A memory control method according to claim 9, wherein said control process comprises extending said band raster buffer to the full-raster buffer of one page, when the capacity of said intermediate buffer is insufficient, and said generation process comprises generating degraded image data from intermediate data memorized in said intermediate buffer, which degraded image data is stored in said full-raster buffer.
Claim 17
Dependent Claim
20 words
A memory control method according to claim 14, wherein said degraded image data is image data with the resolution reduced.
Claim 18
Dependent Claim
20 words
A memory control method according to claim 14, wherein said degraded image data is image data with the gradation reduced.
Claim 19
Dependent Claim
107 words
A memory medium for storing a control program for use in a print control device having a band raster buffer for memorizing image data generated from intermediate data and a cache buffer for allowing cache of image data, comprising: a generation module for use in a generation process of generating image data from intermediate data memorized in an intermediate buffer; and a control module for use in a control process of reserving said intermediate buffer for memorizing said intermediate data, by extending said band raster buffer to a full-raster buffer of one page or deleting said cache buffer, when the capacity of said intermediate buffer is insufficient.
Claim 20
Dependent Claim
107 words
A memory medium for storing a control program for use in a print control device having a band raster buffer for memorizing image data generated from intermediate data and a cache buffer for allowing cache of image data, comprising: a generation module for use in a generation process of generating image data from intermediate data memorized in an intermediate buffer; and a control module for use in a control process of reserving said intermediate buffer for memorizing said intermediate data, by extending said band raster buffer to a full-raster buffer of one page or deleting said cache buffer, when the capacity of said intermediate buffer is insufficient.
References Cited (Backward Citations)
US5136688A
Cited
US5604846A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2001-04-06 | 2001-10-06 | 2002-04-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2005-04-06 | 2005-10-06 | 2006-04-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2009-04-06 | 2009-10-06 | 2010-04-07 | $7700.00 | Window Closed / Lapsed |