US5041866A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Density correcting system for film image reading equipment
Assignee: Fujifilm Business Innovation Corp
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Filing: 1990-02-07
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Granted: 1991-08-20
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Expires: 2010-02-07
Abstract
Abstract A density correcting system for a film image reading apparatus which outputs color decomposing signals of film images from an optical system after correcting the signals for density. The density correcting system is provided with density correcting tables corresponding to the individual color decomposing signals. Film image signals are formed by making corrections of the color decomposing signals for density in accordance with the tables.
Inventors
- 👤 Yoshiya Imoto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 01:13
CPC Classifications
H; H04; H04N; H04N1/00; H04N1/46; H04N1/56; H04N1/60; H04N1/6094; G; G03; G03B; G03B27/00; G03B27/72; G03B27/73; G03B27/735; H04N9/00; H04N9/11
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
88 words
A density correcting system for a film image reading apparatus which outputs color decomposing signals of said film image from an optical system after correcting the signals for density, said density correcting system comprising: a plurality of density correcting tables corresponding to said color decomposing signals, wherein at least one of said density correcting tables provides means for converting a negative image into a positive image; and means for forming film image signals by making corrections of the color decomposing signals for density in accordance with said tables.
Claim 2
Dependent Claim
88 words
A density correcting system for a film image reading apparatus which outputs color decomposing signals of said film image from an optical system after correcting the signals for density, said density correcting system comprising: a plurality of density correcting tables corresponding to said color decomposing signals, wherein at least one of said density correcting tables provides means for converting a negative image into a positive image; and means for forming film image signals by making corrections of the color decomposing signals for density in accordance with said tables.
Claim 3
Dependent Claim
22 words
The density correcting system according to claim 1 wherein said density correcting tables are provided in correspondence with the types of film.
Claim 4
Dependent Claim
50 words
The density correcting system according to claim 2, wherein density correcting curves in the density correcting tables are bent respectively in such a manner that the outputs from the density correcting tables will not be saturated in the case that the color decomposing signals exceed a prescribed level for density.
Claim 5
Dependent Claim
39 words
A density correcting system according to claim 1, wherein said plurality of density correcting tables are selected in accordance with the amount of a shift in the density correction in correspondence with an information on an original sheet film.
Claim 6
Dependent Claim
24 words
The density correcting system according to claim 1, wherein said density correcting tables are provided with an original sheet detecting table for reversal film.
Claim 7
Dependent Claim
27 words
A density correcting system according to claim 1, wherein said density correcting tables are provided with density correcting tables for the contact print mode for negative film.
Claim 8
Dependent Claim
91 words
A density correcting system for an apparatus which reads an image fixed in any of a plurality of different types of media, and transmits color decomposing signals of said image from an optical system after correcting the signals for density, said density correcting system comprising: a plurality of density correcting tables corresponding to both the type of said media upon which said image is fixed and said color decomposing signals; and means for forming image signals by making corrections of the color decomposing signals for density in accordance with said tables.
Claim 9
Dependent Claim
91 words
A density correcting system for an apparatus which reads an image fixed in any of a plurality of different types of media, and transmits color decomposing signals of said image from an optical system after correcting the signals for density, said density correcting system comprising: a plurality of density correcting tables corresponding to both the type of said media upon which said image is fixed and said color decomposing signals; and means for forming image signals by making corrections of the color decomposing signals for density in accordance with said tables.
Claim 10
Dependent Claim
15 words
The density correcting system of claim 7, wherein said type of media includes photographic negatives.
Claim 11
Dependent Claim
15 words
The density correcting system of claim 7, wherein said type of media includes photographic slides.
Claim 12
Dependent Claim
16 words
The density correcting system of claim 7, wherein said type of media includes sheets of paper.
Claim 13
Dependent Claim
14 words
The density correcting system of claim 7, wherein said type of media includes transparencies.
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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) | 1994-08-19 | 1995-02-18 | 1995-08-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-08-19 | 1999-02-18 | 1999-08-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-08-19 | 2003-02-18 | 2003-08-20 | $7700.00 | Window Closed / Lapsed |