公开(公告)号：US11849236B2

公开(公告)日：2023-12-19

申请号：US17849711

申请日：2022-06-27

申请人： PIXART IMAGING INC. ,  TAIWAN SPACE AGENCY

发明人： Ren-Chieh Liu ,  Chao-Chi Lee ,  Yi-Yuan Chen ,  En-Feng Hsu

IPC分类号： H04N25/768 ,  H04N25/75 ,  H04N25/531

CPC分类号： H04N25/768 ,  H04N25/531 ,  H04N25/75

摘要： 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 the time ratio of the line time difference and the frame period. The TDI sensor further records defect pixels of a pixel array such that in integrating pixel data to integrators, the pixel data associated with the defect pixels is not integrated into corresponding integrators.

公开(公告)号：US11863885B2

公开(公告)日：2024-01-02

申请号：US17711079

申请日：2022-04-01

申请人： PixArt Imaging Inc.

发明人： Ren-Chieh Liu ,  Chao-Chi Lee

IPC分类号： H04N25/531 ,  H04N25/771 ,  H04N25/772

CPC分类号： H04N25/531 ,  H04N25/771 ,  H04N25/772

摘要： The present disclosure provides a time delay integration (TDI) sensor using a rolling shutter. The TDI sensor includes two pixel arrays each having 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 TDI sensor doubles a number of times of integrating pixel data corresponding to the same position of a scene by arranging two separately operated pixel arrays.

公开(公告)号：US20230164458A1

公开(公告)日：2023-05-25

申请号：US17878062

申请日：2022-08-01

申请人： PIXART iMAGING INC. ,  NATIONAL APPLIED RESEARCH LABORATORIES

发明人： Ren-Chieh LIU ,  Chao-Chi Lee

IPC分类号： H04N25/768 ,  H04N25/702 ,  H04N25/531 ,  H04N25/51

CPC分类号： H04N25/768 ,  H04N25/702 ,  H04N25/531 ,  H04N25/51 ,  H04N25/77

摘要： 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 the time ratio of the line time difference and the frame period. The TDI sensor further generates pixel data amplified by different gains for a processor to perform the image combination.

公开(公告)号：US09899906B2

公开(公告)日：2018-02-20

申请号：US15606453

申请日：2017-05-26

申请人： PIXART IMAGING INC.

发明人： Chao-Chi Lee ,  Han-Chi Liu

IPC分类号： H02H9/02 ,  H02M1/32 ,  H02M1/08 ,  H02M3/156 ,  G05F1/56

CPC分类号： H02M1/32 ,  G05F1/56 ,  H02H9/02 ,  H02M1/083 ,  H02M3/00 ,  H02M3/155 ,  H02M2001/0045 ,  H02M2003/1566

摘要： A surge current compensating circuit has a compensating current generation unit, a bias unit, and a switch unit, for compensating a surge current drawn from a supply power after an output signal of a specific circuit transits. The compensating current generation unit is electrically coupled to the output stage of the specific circuit. The bias unit is electrically coupled to the compensating current generation unit through the switch unit. Before the output signal transits, the switch unit is disabled and the compensating current generation unit is enabled, so as to draw the compensating current from the supply power. After the output signal transits, the switch unit is enabled and the compensating current generation unit is disabled, such that the compensating current is not drawn from the supply power.

公开(公告)号：US11336843B2

公开(公告)日：2022-05-17

申请号：US17351235

申请日：2021-06-18

申请人： PIXART IMAGING INC.

发明人： Ren-Chieh Liu ,  Chao-Chi Lee ,  Wen-Cheng Yen

IPC分类号： H04N5/353 ,  H04N5/3745

摘要： 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.