Patent ID: 9319605
Filing Date: 2016-04-19
CPC Classification: H04N

Claim Text:
1. A method for operating an image sensor, said method comprising: exposing each of a plurality of pixels in said image sensor for a respective first exposure time; measuring a respective response of each of said plurality of pixels to said respective first exposure time; and exposing each of said plurality of pixels for a respective second exposure time that depends for each pixel on said respective measured response of each of said plurality of pixels, wherein, for a group of pixels including a first pixel and second pixel read using a common row read signal, the respective second exposure times for the first pixel and the second pixel start at different times and end at a common time, and wherein the exposing comprises, for a sub-plurality of pixels sharing a common row reset signal: asserting the common row reset signal a plurality of times during an exposure period; and for each of the pixels in the sub-plurality, preventing the common row reset signal from causing a reset at any of the plurality of times that occur closer to the end of the exposure period than the respective second exposure time.