公开(公告)号：US20230221806A1

公开(公告)日：2023-07-13

申请号：US17571547

申请日：2022-01-10

Applicant: PixArt Imaging Inc.

Inventor： Shang Chan KONG ,  CHUN HEAP LEOW

IPC: H04L43/103 ,  H04L41/0813 ,  H04L41/0823

CPC classification number: H04L43/103 ,  H04L41/0813 ,  H04L41/0823

Abstract: A method of a navigation sensor circuit includes: monitoring at least one polling request signal sent from a microcontroller during a variable time interval, wherein the microcontroller is externally coupled to the navigation sensor circuit; calculating at least one polling rate of the microcontroller according to the at least one polling request signal; and dynamically adjusting a sensor frame rate of the navigation sensor circuit according the at least one polling rate, wherein an image sensor of the navigation sensor circuit operates and captures images to generate and output displacement data based on the sensor frame rate.

公开(公告)号：US20230059746A1

公开(公告)日：2023-02-23

申请号：US17405051

申请日：2021-08-18

Applicant: PixArt Imaging Inc.

Inventor： Ee Wen Chun ,  Shang Chan KONG

IPC: H03M7/30 ,  G11C17/12 ,  H03K19/173

Abstract: A method of integrated circuit includes: providing a non-volatile memory circuit for securely and permanently recording and protecting key data content having Y bits; providing a programmable memory circuit for storing user configuration data content having X bits greater than Y bits; converting the user configuration data content having X bits into user configuration key content having Y bits; comparing the user configuration key content having Y bits with the key data content having Y bits; selecting fallback configuration data content having X bits as output data when the user configuration key content does not match the key data content; selecting the user configuration data content having X bits as the output data when the user configuration key content matches the key data content; and receiving the output data of the decision circuit and performing at least one corresponding capability operation according to the output data.

公开(公告)号：US20210303084A1

公开(公告)日：2021-09-30

申请号：US16830212

申请日：2020-03-25

Applicant: PixArt Imaging Inc.

Inventor： Shang Chan KONG

IPC: G06F3/0354 ,  G06T7/20

Abstract: An image sensing system control method, comprising: (a) predicting a first velocity of the image sensor; (b) calculating a first time duration between a first frame time and a first polling time after the first frame time, wherein the image sensor captures a first frame at the first frame time and receives a first polling from the control circuit at the first polling time; and (c) calculating a first predicted motion delta of the first time duration according to the first velocity and the first time duration.