公开(公告)号：US11012653B2

公开(公告)日：2021-05-18

申请号：US16601541

申请日：2019-10-14

Applicant: PixArt Imaging Inc.

Inventor： Chia-Chi Kuo ,  Jui-Te Chiu ,  Han-Chi Liu ,  Wei-Chia Huang ,  Yi-Cheng Chiu ,  Kuan Tang

IPC: H04N5/376 ,  H04N5/372 ,  H04N5/3745

Abstract: A method of image sensor apparatus includes: providing pixel array having pixel units arranged in M rows and N columns; providing N parallel column readout circuits each being arranged for reading out pixel data of one corresponding column; disposing a horizontal shift register in row direction coupled to the N parallel column readout circuits, to receive a pulse signal and a clock signal, sequentially shift a phase of the pulse signal according to the clock signal, and scan a corresponding column according to the shifted phase of the pulse signal; and using a column select circuit having N latches to receive a power down digital control signal transmitted from a microcontroller wherein the power down digital control signal is used to disable at least one column readout circuit to enable and select a portion of the set of N parallel column readout circuits.

公开(公告)号：US20210112215A1

公开(公告)日：2021-04-15

申请号：US16601541

申请日：2019-10-14

Applicant: PixArt Imaging Inc.

Inventor： Chia-Chi Kuo ,  Jui-Te Chiu ,  Han-Chi Liu ,  Wei-Chia Huang ,  Yi-Cheng Chiu ,  Kuan Tang

IPC: H04N5/376 ,  H04N5/3745 ,  H04N5/372

Abstract: A method of image sensor apparatus includes: providing pixel array having pixel units arranged in M rows and N columns; providing N parallel column readout circuits each being arranged for reading out pixel data of one corresponding column; disposing a horizontal shift register in row direction coupled to the N parallel column readout circuits, to receive a pulse signal and a clock signal, sequentially shift a phase of the pulse signal according to the clock signal, and scan a corresponding column according to the shifted phase of the pulse signal; and using a column select circuit having N latches to receive a power down digital control signal transmitted from a microcontroller wherein the power down digital control signal is used to disable at least one column readout circuit to enable and select a portion of the set of N parallel column readout circuits.