Printer apparatus and method
US-2015373229-A1 · Dec 24, 2015 · US
Image reading device employing calibration plate, apparatus including image reading device, image reading controlling method, and recording medium storing image reading control program
US8970931B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8970931-B2 |
| Application number | US-201313792601-A |
| Country | US |
| Kind code | B2 |
| Filing date | Mar 11, 2013 |
| Priority date | Mar 22, 2012 |
| Publication date | Mar 3, 2015 |
| Grant date | Mar 3, 2015 |
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Abstract
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An image reading device includes an imaging device including a plurality of imaging elements, a color measuring unit that detects color of an object at a color measurement area, a calibration plate having a surface on which a plurality of color patches is formed, and a processor that causes the color measuring unit to read the plurality of color patches while changing a relative position between the plurality of color patches and the plurality of imaging elements to output color measurement results of the plurality of color patches, and generates a set of reference values for the plurality of color patches based on the color measurement results of the plurality of colors. The set of reference values are compared with the reading results of the plurality of color patches to generate a set of correction values for correcting the reading results of the plurality of color patches.
First claim
Opening claim text (preview).
What is claimed is: 1. An image reading device, comprising: an imaging device including a plurality of imaging elements arranged in line in a main scanning direction; a color measuring unit configured to detect a level of light reflected from an object at a color measurement area to output an electric signal reflecting color of the object; a calibration plate having a surface on which a plurality of color patches is formed; a driving mechanism to drive the calibration plate…
Assignees
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Classifications
Electricity · mapped topic
- H04N1/00023Primary
Electricity · mapped topic
- H04N1/00045Primary
Electricity · mapped topic
Electricity · mapped topic
Electricity · mapped topic
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Frequently asked questions
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- What does patent US8970931B2 cover?
- An image reading device includes an imaging device including a plurality of imaging elements, a color measuring unit that detects color of an object at a color measurement area, a calibration plate having a surface on which a plurality of color patches is formed, and a processor that causes the color measuring unit to read the plurality of color patches while changing a relative position betwee…
- Who is the assignee on this patent?
- Kitai Tadashi, Kaneko Hitomi, Ishizaki Hiroyoshi, and 4 more
- What technology area does this patent fall under?
- Primary CPC classification H04N1/00023. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Mar 03 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).