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Electronic apparatus, control method, and image sensor

A technology of electronic equipment and control unit, applied in image communication, television, electrical components, etc., can solve problems such as image quality degradation, and achieve the effect of suppressing image quality degradation

Inactive Publication Date: 2014-08-27
SONY CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] However, when an image sensor performs CDS, for example, there are cases where a so-called "black sunspot" occurs during image capture of a high-brightness object such as the sun, deteriorating image quality, for example.

Method used

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  • Electronic apparatus, control method, and image sensor
  • Electronic apparatus, control method, and image sensor
  • Electronic apparatus, control method, and image sensor

Examples

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Embodiment Construction

[0049] [One embodiment of the digital camera to which the present invention is applied]

[0050] figure 1 is a block diagram illustrating a configuration example according to one embodiment of a digital camera to which the present invention is applied.

[0051] Digital cameras can capture both still images and moving images.

[0052] exist figure 1 Among them, a digital camera includes an optical system 1 , an image sensor 2 , a memory 3 , a signal processor 4 , an output unit 5 and a controller 6 .

[0053] The optical system 1 includes, for example, a zoom lens (not shown), a focus lens, and a diaphragm, and makes external light incident on the image sensor 2 .

[0054] The image sensor 2 is, for example, a CMOS image sensor. The image sensor 2 receives incident light from the optical system 1 , photoelectrically converts the incident light, and outputs image data corresponding to the incident light from the optical system 1 .

[0055] The memory 3 temporarily stores im...

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Abstract

An electronic apparatus includes: a reference-signal output section that outputs a reference signal; a comparator that compares an electrical signal output from a pixel with the reference signal; a counter that obtains a count value as an AD conversion result of the electrical signal, the count value being obtained by counting time taken for the reference signal to change until the electrical signal and the reference signal match each other; and an auto-zero control section that performs control so that auto zero processing for setting the comparator is completed in a reset period, in which the pixel is reset, so that a comparison result indicating that two input signals supplied to the comparator match each other.

Description

technical field [0001] The present invention relates to an electronic device, a control method and an image sensor. More specifically, the present invention relates to, for example, an electronic device, a control method, and an image sensor capable of easily suppressing image quality degradation. Background technique [0002] For example, a charge-coupled device (CCD) image sensor and a complementary metal-oxide-semiconductor (CMOS) image sensor can be used as a solid-state imaging device for capturing images, and in recent years, CMOS image sensors have gained popularity in response to demands for miniaturization. people's attention. [0003] The CMOS image sensor has an analog-to-digital converter (ADC) that performs analog-to-digital (AD) conversion of an analog electrical signal output from a pixel having a photoelectric conversion element for performing photoelectric conversion, such as a photodiode (PD) or the like . [0004] An example of an ADC used in a CMOS ima...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N5/374H04N5/378H04N5/359
CPCH04N5/372H04N5/3598H04N5/378H04N5/374H04N25/627H04N25/78H04N25/75H04N25/50
Inventor 山形优辉松本静德
Owner SONY CORP
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