Multiple payload pantographs
US-10154165-B2 · Dec 11, 2018 · US
Image reading device capable of detecting abnormal pixels in white reference data
US8970914B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8970914-B2 |
| Application number | US-201313747966-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jan 23, 2013 |
| Priority date | Jan 31, 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 a white reference member, reading device, and processor. The reading device includes lenses and light-receiving elements. The light-receiving elements output a plurality of pixel values based on a light reflected from the white reference member. Each lens corresponds to at least two light-receiving elements. Each light-receiving element is configured to receive a light reflected from the white reference member and passing through the corresponding lens and to output one pixel value. The processor acquires the pixel values by using the reading device, sets a target pixel, and determines that the target pixel is an abnormal pixel when an absolute value of difference between a pixel value of the target pixel and a pixel value of a first pixel is greater than a prescribed threshold. The first pixel is separated from the target pixel by an integer multiple of the predetermined lens-to-lens distance.
First claim
Opening claim text (preview).
What is claimed is: 1. An image reading device comprising: a white reference member; a reading device including a plurality of lenses and a plurality of light-receiving elements, the plurality of lenses being arranged in a predetermined direction at a predetermined lens-to-lens distance, each of the plurality of lenses having a predetermined diameter, the plurality of light-receiving elements being arranged in the predetermined direction, the plurality of light-receiving element…
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Electricity · mapped topic
Electricity · mapped topic
Electricity · mapped topic
Electricity · mapped topic
- H04N1/0087Primary
Electricity · mapped topic
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Frequently asked questions
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- What does patent US8970914B2 cover?
- An image reading device includes a white reference member, reading device, and processor. The reading device includes lenses and light-receiving elements. The light-receiving elements output a plurality of pixel values based on a light reflected from the white reference member. Each lens corresponds to at least two light-receiving elements. Each light-receiving element is configured to receive …
- Who is the assignee on this patent?
- Kuno Takeshi, Sugiyama Kentaro, Brother Ind Ltd
- What technology area does this patent fall under?
- Primary CPC classification H04N1/0087. 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).