Image sensor, image-capturing apparatus, and electronic device
US-12185003-B2 · Dec 31, 2024 · US
Image sensor and image capturing apparatus
US8963758B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8963758-B2 |
| Application number | US-201313929282-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jun 27, 2013 |
| Priority date | Jul 11, 2012 |
| Publication date | Feb 24, 2015 |
| Grant date | Feb 24, 2015 |
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- Title
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Abstract
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An image sensor includes a pixel region in which a plurality of pixels are arranged in a row direction and a column direction. An A/D conversion circuit, arranged for each column, which compares an input signal with a ramp signal that changes with temporal unidirectionality, and converts the input signal into digital data. The sensor includes an amplitude control unit configured to compare the pixel signal with a predefined reference voltage, and input, to the A/D conversion circuit, the pixel signal if the pixel signal has a voltage less than the reference voltage, or a signal obtained by reducing an amplitude of the pixel signal if the pixel signal has a voltage of not less than the reference voltage, and a data expansion unit configured to add a predetermined number of bits to an A/D-converted data.
First claim
Opening claim text (preview).
What is claimed is: 1. An image sensor comprising: a pixel region in which a plurality of pixels are arranged in a row direction and a column direction; a reading out unit which reads out pixel signals from the pixels; an A/D conversion unit, arranged for each column, which includes an amplitude control unit configured to control amplitudes of the pixel signals in accordance with a signal level of the pixel signals, and a comparing unit configured to compare the pixel signals…
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Classifications
- H04N25/75Primary
Electricity · mapped topic
- H04N25/772Primary
Electricity · mapped topic
- H04N5/37455Primary
Electricity · mapped topic
Electricity · mapped topic
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Frequently asked questions
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- What does patent US8963758B2 cover?
- An image sensor includes a pixel region in which a plurality of pixels are arranged in a row direction and a column direction. An A/D conversion circuit, arranged for each column, which compares an input signal with a ramp signal that changes with temporal unidirectionality, and converts the input signal into digital data. The sensor includes an amplitude control unit configured to compare the …
- Who is the assignee on this patent?
- Canon Kk
- What technology area does this patent fall under?
- Primary CPC classification H04N25/75. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Feb 24 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).