Patent ID: 9602749
Date: 2017-03-21
CPC Classifications: H04N

Claim:
1. An image sensor comprising: a pixel array circuitry having two or more shared pixel cells arranged in a two-dimensional array, shared pixel cells of the two or more shared cells including a plurality of pixels, wherein each pixel in the plurality of pixels is configured to output an electrical signal by photoelectric conversion; a row control circuitry configured to perform access control differently between a first row and a second row of a plurality of rows for individually reading the electrical signal from the each pixel in the plurality of pixels in the shared pixel cells; a column processing circuitry configured to process the electrical signals that are read at the same time from the shared pixel cells in the two-dimensional array, wherein a column of the shared pixel cells is connected to a plurality of column signal lines, and wherein the electrical signals that are read from each of the shared pixel cells are supplied to the column processing circuitry via the plurality of column signal lines; a plurality of capacitors connected in parallel to the column processing circuitry; and a switch configured to select which of the plurality of capacitors is connected to the plurality of column signal lines, wherein the row control circuitry is further configured to perform weight addition on the electrical signals that are read at the same time from the shared pixel cells, and wherein the weight addition is performed by supplying the electrical signals that are read at the same time from the shared pixel cells via one of the plurality of capacitors connected to the plurality of column signal lines.