Patent ID: 11863885
Assignee: PIXART IMAGING INC.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC H | IPC H

Claim 19:
20. A TDI CMOS image sensor, configured to capture an image frame using a rolling shutter and move with respect to a scene in an along-track direction, the image sensor comprising:
a first pixel array and a second pixel array, each comprising multiple pixel columns, each of the pixel columns comprising multiple pixels arranged in the along-track direction, and two adjacent pixels of each of the pixel columns having a separation space therebetween, wherein the separation space is a multiplication of a pixel height in the along-track direction by a time ratio of a line time difference of the rolling shutter and a frame period of capturing the image frame; and
multiple integrators, configured to respectively store pixel data in successive image frames corresponding to a same position of the scene, wherein
in one line time difference, each of the integrators is configured to integrate the pixel data in continuous image frames corresponding to the same position of the scene,
in double line time difference, each of the integrators is configured to integrate the pixel data in non-continuous image frames corresponding to the same position of the scene, and
wherein the first pixel array and the second pixel array are arranged along the along-track direction, and each of the pixel columns of the first pixel array is aligned with a corresponding pixel column of the second pixel array configured to sequentially cross the same position of the scene.