Patent ID: 7630009
Filing Date: 2009-12-08
Classification: H04N

Abstract:
1. An imaging system comprising an image sensor and a mechanical shutter which controls termination of exposure of the image sensor, wherein the image sensor includes a pixel array in which a plurality of pixels are arrayed in a matrix, and a vertical scanning unit which scans the pixel array for each row, the vertical scanning unit executes in parallel at least a part of reset operations of pixels on at least two adjacent rows of the pixel array, a charge accumulation operation of pixels starts upon completion of the reset operation and terminates in response to light shielding by the mechanical shutter, and the vertical scanning unit executes the reset operations of pixels on at least two adjacent rows of the pixel array to make a period between the start of the reset operation and a completion of the reset operation longer on a row on which a passage speed of a leading edge of the mechanical shutter is lower than on a row on which the passage speed of the leading edge of the mechanical shutter is higher, and sequentially completes the reset operations of the pixels on at least two adjacent rows of the pixel array.