公开(公告)号：US20190306447A1

公开(公告)日：2019-10-03

申请号：US15940873

申请日：2018-03-29

Applicant: Analog Devices Global Unlimited Company

Inventor： Wayne PALMER ,  Pascal DORSTER ,  Peeyush BHATIA

IPC: H04N5/378 ,  H04N5/355

Abstract: An image sensor can respond to light either linearly or logarithmically in order to achieve flexible and high contrast performance. This is made possible by using a programmable lookup table, or an array of numbers, that represents control parameter values of the image sensor. The control parameter values in the lookup table are programmable and could be kept constant, increase linearly, or non-linearly, between consecutive indexes. Photodiode control circuitry is used to adapt the response of the photodiodes in the image sensor depending on the lighting impacting upon the image sensor.