Patent ID: 8817148
Filing Date: 2014-08-26
Classification: H01L,H04N

Abstract:
1. A method for acquiring data with an image sensor, the sensor showing a multitude of pixels, the sensor using a reset to bring the pixels to a predetermined state, the method comprising: resetting the voltage of a pixel; reading the voltage of the pixel a first time, resulting in a first read-out value for the pixel; reading the voltage of each pixel a second time, resulting in a second read-out value for the pixel; determining a first signal by subtracting the first read-out value from the second read-out value of the pixel; reading the voltage of the pixel a third time, resulting in a third read-out value, no reset occurring between reading the voltage of the pixel a second time and reading the voltage of the pixel a third time; and determining a second signal by subtracting the second read-out value from the third read-out value.