High dynamic range image sensor read out architecture

摘要

A method of controlling a pixel array includes reading out image data from pixel cells of a row i of the pixel array with second transfer control signals that are coupled to be received by transfer transistors included in the pixels cells of the row of the pixel array that is being read out. Exposure times for pixel cells are independently controlled in other rows of the pixel array that are not being read out with first transfer control signals coupled to be received by transfer transistors included in the pixel cells in the other rows of the pixel array that are not being read out while the image data is read out from the pixel cells of row i of the pixel array.

主权项

1. A method of controlling a pixel array, comprising:
reading out image data from pixel cells of a row i of the pixel array with second transfer control signals coupled to be received by transfer transistors included in the pixels cells of the row of the pixel array that is being read out; and independently controlling exposure times for pixel cells in other rows of the pixel array that are not being read out with first transfer control signals coupled to be received by transfer transistors included in the pixel cells in the other rows of the pixel array that are not being read out while the image data is read out from the pixel cells of row i of the pixel array, wherein only one of the first and second transfer control signals coupled to be received by a transfer transistor included in a pixel cell is active at a time.