Patent ID: 8970758
Filing Date: 2015-03-03
Classification: H04N

Abstract:
1. An imaging pickup device comprising: an image sensor having a pixel region with pixels including photoelectric conversion elements arranged in a two-dimensional form, and a plurality of analog-to-digital converters converting analog signals from pixels to digital signals by determining a higher part of a digital signal including the most significant bit as a first step down to a lower part of the digital signal including the least significant bit, the pixel region and the plurality of analog-to-digital converters being arranged on a common semiconductor substrate, and the image sensor being adapted to output the digital signal formed by each of the plurality of the analog-to-digital converters; and a first correction unit that receives the digital signals output from the image sensor and for correcting nonlinear errors of the digital signal formed by analog-to-digital converters of the plurality of analog-to-digital converters based on a correction factor corresponding to each of the analog-to-digital converters.