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Image sensor with image blur reduction mechanism

An image sensor and image recording technology, applied in the field of image sensors, can solve the problems of brightness distortion, high brightness, and reduced spatial resolution.

Active Publication Date: 2011-12-14
OMNIVISION TECH INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Spilled charges can distort the brightness recorded by adjacent optoelectronic devices and ultimately reduce the spatial resolution
For example, the brightness recorded by an adjacent optoelectronic device may be erroneously high due to overflowing charge

Method used

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  • Image sensor with image blur reduction mechanism
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  • Image sensor with image blur reduction mechanism

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Embodiment Construction

[0017] This disclosure describes image sensors with image blur reduction mechanisms. It will be appreciated that several details set forth below are provided to describe the following embodiments in a manner sufficient to enable those skilled in the relevant art to make and use the disclosed embodiments. However, several of the details and advantages described below may not be necessary to practice certain embodiments of the invention. In addition, the present invention may be included within the scope of the claims without reference to Figure 1 to Figure 6 Other examples described in detail.

[0018] figure 1 An image sensor 100 with an image blur reduction mechanism and configured in accordance with an embodiment of the present invention is schematically illustrated. Image sensor 100 may include pixel array 101 , column selection circuitry 106 , row selection circuitry 108 , analog signal processor 104 , timing and control circuitry 110 , A / D converter 112 , and digital ...

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Abstract

The present invention discloses a CMOS image sensor with image blur reduction mechanism. The image sensor may include a plurality of pixels arranged in a row and timing and control circuitry in electrical communication with the plurality of pixels. The timing and control circuitry includes a readout module configured to: output a first row of pixels exposed for a first exposure period; after outputting the first row of pixels, output an exposure for the first a second row of pixels for an exposure period; and a third row of pixels for which output exposure lasts for a second exposure period different from said first exposure period, said third row of pixels being between said first and second row of pixels between.

Description

technical field [0001] The present invention relates to an image sensor with an image blur reduction mechanism. In particular, aspects of the invention relate to complementary metal oxide silicon (CMOS) image sensors having increased dynamic range and reduced blurring characteristics. Background technique [0002] Unlike traditional cameras, which use film to capture and store images, today's digital cameras use solid-state image sensors to acquire images. Such image sensors are typically mounted on a fingernail-sized silicon chip containing millions of photoelectric devices, such as photodiodes, arranged in an array of pixels. During exposure, each optoelectronic device records the intensity or brightness of incident light by converting light energy into accumulated electrical charges. The brightness recorded by each optoelectronic device can then be read out and stored as a digital signal. [0003] One problem associated with solid-state image sensors is their limited d...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N5/335H04N5/355H04N5/359H01L27/146
CPCH04N5/35581H04N3/155H04N5/3594H04N5/335H01L27/14654H04N25/533H04N25/589H04N25/623H04N25/00
Inventor 单济章詹姆斯·新平·尹亨利·杨
Owner OMNIVISION TECH INC