公开(公告)号：US12229355B2

公开(公告)日：2025-02-18

申请号：US18257184

申请日：2021-12-14

Applicant: EM Microelectronic-Marin SA

Inventor： Sylvain Grosjean ,  Jérémy Schlachter

IPC: G06F3/038 ,  G06F3/0354

Abstract: In a sensing device of a pointing device, like a mouse, said pointing device includes at least one light source configured to illuminate a surface, at least one first secondary photodetector, at least one second secondary photodetector, and at least one primary photodetector. Each individual storage element of photodetectors is weighted and compared such as to sense a displacement of the pointing device.

公开(公告)号：US12147611B2

公开(公告)日：2024-11-19

申请号：US18257175

申请日：2021-12-14

Applicant: EM Microelectronic-Marin SA

Inventor： Sylvain Grosjean ,  Jérémy Schlachter

IPC: G06F3/03

Abstract: In a method for sensing a displacement of a pointing device, like a mouse, said pointing device includes at least one light source configured to illuminate a surface, at least one first secondary photodetector, at least one second secondary photodetector, and at least one primary photodetector. Each individual value of the photodetectors is weighted and compared such as to sense said displacement of the pointing device.

公开(公告)号：US12045405B2

公开(公告)日：2024-07-23

申请号：US18255618

申请日：2021-12-14

Applicant: EM Microelectronic-Marin SA

Inventor： Sylvain Grosjean ,  Jérémy Schlachter

IPC: G06F3/038 ,  G06F3/03 ,  G06F3/0354

CPC classification number: G06F3/038 ,  G06F3/0304 ,  G06F3/03543

Abstract: An embodiment of the invention relates to a method for sensing a displacement of a pointing device, like a mouse. The pointing device includes at least one light source configured to illuminate a surface, at least one first secondary photodetector, at least one second secondary photodetector and at least one primary photodetector. Each individual value of photodetectors is weighted and compared to sense the displacement of the pointing device by comparing a plurality of storage elements.