公开(公告)号：US20240230435A1

公开(公告)日：2024-07-11

申请号：US18616202

申请日：2024-03-26

Applicant: PixArt Imaging Inc.

Inventor： Ming-Hung Tsai ,  Chun-Yang Chen ,  Yen-Po Chen

IPC: G01L1/26 ,  G01L25/00 ,  G06F3/041

CPC classification number: G01L1/26 ,  G01L25/00 ,  G06F3/0414 ,  G06F3/0418

Abstract: A force sensing method, applied to a force sensing system comprising a plurality of force sensors and a touch sensing surface, comprising: (a) determining a first location of a first object on the touch sensing surface; (b) defining a first force sensing region according to the first location; and (c) computing a first system sensing force which the first object causes to the touch sensing surface according to the first location, and according to at least one sensor sensing force of a first part of the force sensors corresponding to the first force sensing region. The present invention also discloses a force sensing system which uses the above-mentioned force sensing method, and an efficient force sensor calibration method. Noises can be reduced and power consumption can be decreased, since only sensor sensing forces of force sensors near the object are used for computing the system sensing force.

公开(公告)号：US11976990B2

公开(公告)日：2024-05-07

申请号：US17557002

申请日：2021-12-20

Applicant: PixArt Imaging Inc.

Inventor： Ming-Hung Tsai ,  Chun-Yang Chen ,  Yen-Po Chen

IPC: G01L1/26 ,  G01L25/00 ,  G06F3/041

CPC classification number: G01L1/26 ,  G01L25/00 ,  G06F3/0414 ,  G06F3/0418

Abstract: A force sensing method, applied to a force sensing system comprising a plurality of force sensors and a touch sensing surface, comprising: (a) determining a first location of a first object on the touch sensing surface; (b) defining a first force sensing region according to the first location; and (c) computing a first system sensing force which the first object causes to the touch sensing surface according to the first location, and according to at least one sensor sensing force of a first part of the force sensors corresponding to the first force sensing region. The present invention also discloses a force sensing system which uses the above-mentioned force sensing method, and an efficient force sensor calibration method. Noises can be reduced and power consumption can be decreased, since only sensor sensing forces of force sensors near the object are used for computing the system sensing force.

公开(公告)号：US20230194369A1

公开(公告)日：2023-06-22

申请号：US17557002

申请日：2021-12-20

Applicant: PixArt Imaging Inc.

Inventor： Ming-Hung Tsai ,  Chun-Yang Chen ,  Yen-Po Chen

IPC: G01L1/26 ,  G01L25/00

CPC classification number: G01L1/26 ,  G01L25/00

Abstract: A force sensing method, applied to a force sensing system comprising a plurality of force sensors and a touch sensing surface, comprising: (a) determining a first location of a first object on the touch sensing surface; (b) defining a first force sensing region according to the first location; and (c) computing a first system sensing force which the first object causes to the touch sensing surface according to the first location, and according to at least one sensor sensing force of a first part of the force sensors corresponding to the first force sensing region. The present invention also discloses a force sensing system which uses the above-mentioned force sensing method, and an efficient force sensor calibration method. Noises can be reduced and power consumption can be decreased, since only sensor sensing forces of force sensors near the object are used for computing the system sensing force.