US4734786A
Expired / Lapsed
US
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Image processing apparatus
Assignee: Canon Inc
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Filing: 1984-10-15
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Granted: 1988-03-29
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Expires: 2004-10-15
Abstract
Abstract An image processing apparatus comprises image data input means and processing means for processing the image data inputted from the input means. The processing means enlarges or reduces the image data by a unit of a predetermined area.
Inventors
- 👤 Takashi Minakawa
- 👤 Yasuhisa Ishizawa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 23:02
CPC Classifications
H; H04; H04N; H04N1/00; H04N1/387; H04N1/393; H04N1/3935; G; G06; G06T; G06T3/00; G06T3/40; H04N1/40; H04N1/40075
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
61 words
An image processing apparatus comprising: image data input means; and processing means for processing image data from said input means; said processing means changing the size of predetermined areas of the image data for each of said areas in accordance with an input magnification factor, said predetermined areas having a plurality of image data in conjunction with a half-tone processing operation.
Claim 2
Dependent Claim
61 words
An image processing apparatus comprising: image data input means; and processing means for processing image data from said input means; said processing means changing the size of predetermined areas of the image data for each of said areas in accordance with an input magnification factor, said predetermined areas having a plurality of image data in conjunction with a half-tone processing operation.
Claim 3
Dependent Claim
42 words
An image processing apparatus according to claim 1 further comprising memory means for storing said image data, wherein said processing means magnifies the image data while transferring the image data from a first location to a second location in said memory means.
Claim 4
Dependent Claim
25 words
An image processing apparatus according to claim 2 wherein said processing means includes register means for storing addresses corresponding to said first and second locations.
Claim 5
Dependent Claim
27 words
An image processing apparatus according to claim 2 wherein said processing means includes register means for storing a value associated with a size of the magnified image.
Claim 6
Dependent Claim
31 words
An image processing apparatus according to claim 1 wherein said processing means enlarges the image data for each predetermined area having a plurality of image data associated with a half-tone process.
Claim 7
Dependent Claim
30 words
An image processing apparatus according to claim 1 wherein said processing means reduces the image data for each predetermined area having a plurality of image data associated with half-tone process.
Claim 8
Dependent Claim
18 words
An image processing apparatus according to claim 1 wherein said input image data is half-tone processed bit data.
Claim 9
Dependent Claim
67 words
An image processing apparatus comprising: image data input means; and processing means for processing image data from said input means, wherein the size of predetermined areas of said image data are changed and wherein said input image data is half-tone processed by a dither matrix, and said processing means changes the size of predetermined areas of said image data for each area associated with said dither matrix.
Claim 10
Dependent Claim
67 words
An image processing apparatus comprising: image data input means; and processing means for processing image data from said input means, wherein the size of predetermined areas of said image data are changed and wherein said input image data is half-tone processed by a dither matrix, and said processing means changes the size of predetermined areas of said image data for each area associated with said dither matrix.
Claim 11
Dependent Claim
61 words
An image processing apparatus comprising: image data input means; and processing means for processing the image data from said input means while transferring said image data from a first location to a second location; said processing means changes the size of said image data in association with a dither matrix when said image data is half-tone processed by said dither matrix.
Claim 12
Dependent Claim
61 words
An image processing apparatus comprising: image data input means; and processing means for processing the image data from said input means while transferring said image data from a first location to a second location; said processing means changes the size of said image data in association with a dither matrix when said image data is half-tone processed by said dither matrix.
Claim 13
Dependent Claim
25 words
An image processing apparatus according to claim 9 wherein said processing means changes the size of areas of said image data for each dither matrix.
Claim 14
Dependent Claim
44 words
An image processing apparatus according to claim 10 further comprising memory means for storing said image data, wherein said processing means magnifies the areas of image data while transferring the image data from said first location to said second location in said memory means.
Claim 15
Dependent Claim
25 words
An image processing apparatus according to claim 9 wherein said processing means includes register means for storing addresses corresponding to said first and second locations.
Claim 16
Dependent Claim
24 words
An image processing apparatus according to claim 9 wherein said processing means enlarges said areas of image data in association with said dither matrix.
Claim 17
Dependent Claim
24 words
An image processing apparatus according to claim 9 wherein said processing means reduces said areas of image data in association with said dither matrix.
Claim 18
Dependent Claim
21 words
An image processing apparatus according to claim 9 wherein said image data is bit data half-tone processed by said dither matrix.
References Cited (Backward Citations)
US4394693A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1991-03-29 | 1991-09-28 | 1992-03-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-03-29 | 1995-09-28 | 1996-03-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-03-29 | 1999-09-28 | 2000-03-29 | $7700.00 | Window Closed / Lapsed |