Patent ID: 9036065
Filing Date: 2015-05-19
Classification: H04N

Abstract:
1. A method of operation within an integrated-circuit image sensor, the method comprising: iteratively sampling a first pixel to obtain a first sequence of sample values; accumulating a first count value within a counter according to the first sequence of sample values; iteratively sampling a second pixel to obtain a second sequence of sample values; accumulating a second count value within the counter according to the second sequence of sample values; resetting the counter prior to accumulating the second count value; and wherein iteratively sampling the first and second pixels to obtain the first and second sequences of sample values comprises iteratively sampling the first and second pixels during a first exposure interval, the method further comprising resetting the counter to clear the second count value and sampling the first pixel again to generate an additional sample value during the first exposure interval, and, after clearing the second count value, accumulating a third count value that includes the additional sample value.