公开(公告)号：US20210409630A1

公开(公告)日：2021-12-30

申请号：US17351235

申请日：2021-06-18

Applicant: PIXART IMAGING INC.

Inventor： Ren-Chieh LIU ,  Chao-Chi LEE ,  Wen-Cheng YEN

IPC: H04N5/353 ,  H04N5/3745

Abstract: The present disclosure provides a time delay integration (TDI) sensor using a rolling shutter. The TDI sensor includes multiple pixel columns. Each pixel column includes multiple pixels arranged in an along-track direction, wherein two adjacent pixels or two adjacent pixel groups in every pixel column have a separation space therebetween. The separation space is equal to a pixel height multiplied by a time ratio of a line time difference of the rolling shutter and a frame period, or equal to a summation of at least one pixel height and a multiplication of the pixel height by a time ratio of the line time difference and the frame period. The line time difference of the TDI sensor is changeable without changing the separation space.