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US4841361A
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Color image processing apparatus
Assignee: Konica Minolta Inc
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Filing: 1987-12-03
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Granted: 1989-06-20
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Expires: 2007-12-03
Abstract
Abstract In the color image processing apparatus according to the invention which reads an image on an original, generates a plural sets of color image components and extract color signal based on the color image components, to eliminate a density fluctuation in such color image processing, the density treatment is performed simultaneously with the color ghost treatment.
Inventors
- 👤 Masahiko Matsunawa
- 👤 Hiroyuki Yamamoto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 17:03
CPC Classifications
H; H04; H04N; H04N1/00; H04N1/46; H04N1/56; H04N1/58
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
118 words
Apparatus for processing a color original image which comprises (1) means for reading a color original image to generate a plurality of color component signals for each pixel of said original image; (2) means for processing said color component signals to generate a plurality of color image signals wherein each of said color image signals comprises color code data and density data; (3) means for eliminating a color ghost from said color code data, said color ghost eliminating means storing corrected color code data whereby said color ghost eliminating means outputs corrected color code data in accordance with said color code data, and; (4) means for correcting said density data in accordance with said corrected color code data.
Claim 2
Dependent Claim
118 words
Apparatus for processing a color original image which comprises (1) means for reading a color original image to generate a plurality of color component signals for each pixel of said original image; (2) means for processing said color component signals to generate a plurality of color image signals wherein each of said color image signals comprises color code data and density data; (3) means for eliminating a color ghost from said color code data, said color ghost eliminating means storing corrected color code data whereby said color ghost eliminating means outputs corrected color code data in accordance with said color code data, and; (4) means for correcting said density data in accordance with said corrected color code data.
Claim 3
Dependent Claim
20 words
The apparatus of claim 1 wherein said color ghost eliminating means comprises a first and a second ghost eliminating portion.
Claim 4
Dependent Claim
25 words
The apparatus of claim 1 wherein said color ghost eliminating means eliminates a color ghost in both horizontal and vertical scanning directions of said apparatus.
Claim 5
Dependent Claim
16 words
The apparatus of claim 1 wherein said corrected density data is converted to binary-coded density data.
Claim 6
Dependent Claim
18 words
The apparatus of claim 4 wherein said corrected color code data is controlled by said binary-coded density data.
Claim 7
Dependent Claim
17 words
The apparatus of claim 1 wherein said corrected density data is converted to tri-state coded density data.
Claim 8
Dependent Claim
19 words
The apparatus of claim 6 wherein said corrected color code data is controlled by said tri-state coded density data.
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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) | 1992-06-19 | 1992-12-19 | 1993-06-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-06-19 | 1996-12-19 | 1997-06-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-06-19 | 2000-12-19 | 2001-06-20 | $7700.00 | Window Closed / Lapsed |