公开(公告)号：US20210404870A1

公开(公告)日：2021-12-30

申请号：US17474738

申请日：2021-09-14

Applicant: PixArt Imaging Inc.

Inventor： Kuan TANG ,  Yi-Cheng CHIU ,  Chia-Chi KUO ,  Jui-Te CHIU ,  Han-Chi LIU

IPC: G01J1/46

Abstract: There is provided a circuit to improve the sensing efficiency of pixels that uses the induction effect of a capacitor to duplicate a voltage deviation caused by additional electrons and uses a circuit to cancel out the voltage deviation during reading pixel data thereby improving the sensing efficiency.

公开(公告)号：US20190174084A1

公开(公告)日：2019-06-06

申请号：US15830754

申请日：2017-12-04

Applicant: PixArt Imaging Inc.

Inventor： Chia-Chi KUO ,  Jui-Te CHIU ,  Han-Chi LIU ,  Peng-Sheng CHEN ,  Yi-Cheng CHIU

IPC: H04N5/378 ,  H04N5/369 ,  H04N5/3745

Abstract: An image sensor including a first pixel circuit, a second pixel circuit, a first readout line, a second readout line, a first readout circuit, a second readout circuit and an average switch is provided. The first and second pixel circuits are in two columns of a pixel array. The first readout line transmits pixel data of the first pixel circuit to the first readout circuit. The second readout line transmits pixel data of the second pixel circuit to the second readout circuit. The average switch is arranged between the first and second readout lines and used to electrically connect the first and second readout lines in an average mode to average the pixel data on the first and second readout lines.