Image sensor and image capture device using same

Abstract

The invention provides an image sensor and an impact capture device using it. The image sensor includes an image sensor array and a voltage supply array. The image sensor array and the voltage supply array are coupled to the analog-to-digital converter array. The image sensor array captures image data. The image sensor array supports one of a rolling shutter mechanism and a global shutter mechanism according to settings. The voltage supply array includes a plurality of voltage supply circuits to provide a predetermined voltage. During auto-calibration, the voltage supply array provides a desired voltage to the analog-to-digital converter array. Multiple comparators of the ADC array perform an auto-calibration function based on the proposed voltage. After the comparator completes the automatic calibration function, the image sensor array outputs image data to the analog-to-digital converter array. The analog-to-digital converter array converts the image data into digital image data. The circuit design of the image sensor is simplified, easy to manufacture and low in manufacturing cost.

Description

technical field [0001] The present invention relates to an image sensor, and in particular to an image sensor capable of supporting a rolling shutter mechanism and a global shutter mechanism, and an image capture device using the same. Background technique [0002] With the development of optoelectronic products, the demand for image sensors is also increasing. Image sensors can be roughly divided into two categories: Complementary Metal-Oxide-Semiconductor (CMOS) image sensors and charge-coupled device (CCD) image sensors. CMOS image sensing devices are widely developed and used due to their advantages of low power consumption and low manufacturing cost. [0003] The image sensor includes a plurality of pixels arranged in a matrix and a plurality of comparators. If the image sensor is a Column Analog-to-Digital Converter (Column Analog-to-Digital Converter) structure, the pixels in the same row among the plurality of pixels are coupled to the same comparator. Each pixel ...

AI Technical Summary

Problems solved by technology

[0006] The present invention provides an image sensor and an image capture device using it to solve the problem that the image sensor in the prior art uses two sets of comparators and image processing circuits to separately process the output under the rolling shutter mechanism and the global shutter mechanism. The technical problems of cost and area increase brought about by the image data

The image sensor array and the voltage supply array are coupled to an analog-to-digital converter array

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