Patent ID: 9148601
Filing Date: 2015-09-29
Classification: H04N

Abstract:
1. A CMOS image sensor for time delay integration (TDI) imaging of a subject that is moving with respect to the CMOS image sensor in an along track direction, the CMOS image sensor comprising: a two-dimensional array of photosensitive elements each operable in a rolling shutter mode, the array having a plurality of columns of photosensitive elements aligned in the along track direction, each of the photosensitive elements in a column separated by a physical offset to compensate for integration periods of the photosensitive elements in the rolling shutter mode of operation; and a plurality of column buses, each of the plurality of columns of photosensitive elements coupled to a corresponding one of the plurality of column buses; wherein the two-dimensional array of photosensitive elements has N rows, the photosensitive elements have a pixel pitch, and the physical offset is 1/N