Patent ID: 11871129
Assignee: OMNIVISION TECHNOLOGIES, INC.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC H  G | IPC G  H

Claim 10:
11. The method of claim 3, further comprising determining the weighted sum of the plurality of N multiple-sampling values by:
reading a first reset-sample of the plurality of N reset-samples from an analog-to-digital converter of the image sensor;
reading a first signal-sample of the plurality of N reset-samples from the analog-to-digital converter;
storing, in a memory, a cumulative weighted-sample equal to a product of (i) a difference between the first reset-sample and the first signal-sample, and (ii) a first sample-weight of the plurality of N sample-weights;
for each of the plurality of N reset-samples, N signal-samples, and N sample-weights other than the first reset-sample, the first signal-sample and the first sample-weight, (i) reading the reset-sample and the signal-sample from the analog-to-digital converter, and (ii) increasing the cumulative weighted-sample by a product of (a) a difference between the reset-sample and the signal-sample and (b) the sample-weight; and
determining the weighted sum as a quotient of (i) the cumulative weighted-sample and (ii) a product of N and a conversion gain of the pixel.