公开(公告)号：US12216063B2

公开(公告)日：2025-02-04

申请号：US17242296

申请日：2021-04-27

Applicant: PixArt Imaging Inc.

Inventor： Tsung-Fa Wang ,  Hung-Ching Lai ,  Guo-Zhen Wang

IPC: G01N21/94 ,  G01N21/88

Abstract: An electronic device, comprising: a first light source, configured to emit first light; a second light source, configured to emit second light; a first optical sensor, configured to sense first optical data generated based on reflected light of the first light; a light guiding device, configured to receive the second light; and a second optical sensor, configured to sense second optical data generated based on the second light emitted by the light guiding device. The first optical sensor and the second optical sensor can be integrated to a single optical sensor.

公开(公告)号：US20210247327A1

公开(公告)日：2021-08-12

申请号：US17242296

申请日：2021-04-27

Applicant: PixArt Imaging Inc.

Inventor： Tsung-Fa Wang ,  Hung-Ching Lai ,  Guo-Zhen Wang

IPC: G01N21/94 ,  G01N21/88

Abstract: An electronic device, comprising: a first light source, configured to emit first light; a second light source, configured to emit second light; a first optical sensor, configured to sense first optical data generated based on reflected light of the first light; a light guiding device, configured to receive the second light; and a second optical sensor, configured to sense second optical data generated based on the second light emitted by the light guiding device. The first optical sensor and the second optical sensor can be integrated to a single optical sensor.

公开(公告)号：US10659077B2

公开(公告)日：2020-05-19

申请号：US15597110

申请日：2017-05-16

Applicant: PixArt Imaging Inc.

Inventor： Tsung-Fa Wang ,  Shih-Wei Kuo

IPC: H03M11/20 ,  H03K5/1254 ,  H03M11/00

Abstract: An amending circuit of correcting bouncing misjudgment of a keyswitch includes a comparing unit, a predetermined voltage generating unit and a controlling unit. The comparing unit has a first input terminal, a second input terminal and an output terminal. The first input terminal is adapted to receive a triggering signal generated by the keyswitch. The predetermined voltage generating unit is electrically connected to the second input terminal and adapted to generate a first predetermined voltage. The controlling unit is electrically connected to the output terminal. The controlling unit is adapted to determine whether to execute polling application according to a comparison result of the comparing unit, and to generate a confirming signal while a polling result of the polling application is kept at a specific level. The confirming signal is used by an external processor to confirm that the keyswitch is actually triggered.

公开(公告)号：US20180212620A1

公开(公告)日：2018-07-26

申请号：US15597110

申请日：2017-05-16

Applicant: PixArt Imaging Inc.

Inventor： Tsung-Fa Wang ,  Shih-Wei Kuo

IPC: H03M11/20

Abstract: An amending circuit of correcting bouncing misjudgment of a keyswitch includes a comparing unit, a predetermined voltage generating unit and a controlling unit. The comparing unit has a first input terminal, a second input terminal and an output terminal. The first input terminal is adapted to receive a triggering signal generated by the keyswitch. The predetermined voltage generating unit is electrically connected to the second input terminal and adapted to generate a first predetermined voltage. The controlling unit is electrically connected to the output terminal. The controlling unit is adapted to determine whether to execute polling application according to a comparison result of the comparing unit, and to generate a confirming signal while a polling result of the polling application is kept at a specific level. The confirming signal is used by an external processor to confirm that the keyswitch is actually triggered.

公开(公告)号：US09229545B2

公开(公告)日：2016-01-05

申请号：US13873700

申请日：2013-04-30

Applicant: PIXART IMAGING INC.

Inventor： Yu-Hao Huang ,  Ming-Tsan Kao ,  Ren-Hau Gu ,  Hsin-Chia Chen ,  Yung-Chang Lin ,  Tsung-Fa Wang

IPC: G06F3/038 ,  G06F3/03

CPC classification number: G06F3/038 ,  G06F3/0317

Abstract: An optical navigation apparatus and an optical navigation method are provided. The optical navigation apparatus includes a light source unit, an image sensing unit, and a processing unit, wherein the processing unit is electrically connected to the light source unit and the image sensing unit. The light source unit generates a beam of light. The image sensing unit captures a plurality of images within a time interval. The processing unit determines that the beam of light is projected onto a touch object according to the images, calculates a piece of displacement information related to the touch object according to the images, generates a comparison result by comparing the piece of displacement information with a threshold, and sets a displacement resolution of the optical navigation apparatus according to the comparison result.

Abstract translation: 提供了一种光学导航装置和光学导航方法。 光学导航装置包括光源单元，图像感测单元和处理单元，其中处理单元电连接到光源单元和图像感测单元。 光源单元产生光束。 图像感测单元在时间间隔内捕获多个图像。 处理单元根据图像确定光束被投影到触摸对象上，根据图像计算与触摸对象相关的位移信息，通过将该位移信息与阈值进行比较来生成比较结果 ，并根据比较结果设定光学导航装置的位移分辨率。

公开(公告)号：US12210690B1

公开(公告)日：2025-01-28

申请号：US18368023

申请日：2023-09-14

Applicant: PixArt Imaging Inc.

Inventor： Tsung-Fa Wang

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

Abstract: A method of an optical navigation device, to be coupled to a computer device through a specific communication interface, includes: providing an optical sensor to sense and generate an optical navigation position related signal in response to a movement of the optical navigation device; detecting a moving speed of the movement of the optical navigation device; and, dynamically adjusting a transmission report rate of the optical navigation device, which is used to periodically transmit the optical navigation position related signal to the computer device, based on the detect moving speed.

公开(公告)号：US20250013318A1

公开(公告)日：2025-01-09

申请号：US18890742

申请日：2024-09-19

Applicant: PixArt Imaging Inc.

Inventor： Tsung-Fa Wang ,  Yen-Min Chang ,  Shih-Wei Kuo

IPC: G06F3/03

Abstract: A method for configuring an optical input device is provided. The optical input device includes a movable unit and a sensing device. The movable unit is arranged to move within a predetermined range. The sensing device is arranged to detect a position within the predetermined range at which the movable unit is located. The method includes: adjusting an optical setting of the sensing device to obtain an optimal dynamic range of the sensing device; and configuring a valid input threshold for the optical input device based on the optimal dynamic range.

公开(公告)号：US11409375B2

公开(公告)日：2022-08-09

申请号：US15854682

申请日：2017-12-26

Applicant: PixArt Imaging Inc.

Inventor： Tsung-Fa Wang

IPC: G06F3/03 ,  G06F3/0346 ,  G06F3/0354

Abstract: A method of adjusting an optical setting of an optical input device includes: determining a desired level of an intensity of captured reflected light reflected from a tracking surface; determining whether a surface changing event occurs; and adjusting an optical setting of the optical input device according to the desired level of the intensity of the captured reflected light if it is determined the surface changing event occurs.

公开(公告)号：US10901538B2

公开(公告)日：2021-01-26

申请号：US16234534

申请日：2018-12-27

Applicant: PixArt Imaging Inc.

Inventor： Yen-Chang Wang ,  Tsung-Fa Wang

IPC: G06F3/033 ,  G06F3/0354 ,  G06F21/32 ,  G06F3/038 ,  G06F3/03

Abstract: A pen mouse includes a housing, a rotatable actuator, an optical sensor and a processor. The rotatable actuator is movably disposed inside the housing along a structurally longitudinal direction and a structurally horizontal direction of the housing. The optical sensor is adapted to detect surface reflection of the rotatable actuator. The processor is electrically connected with the optical sensor and adapted to compute a rotating direction, a rotating angle and depth variation of the rotatable actuator via analysis of the surface reflection.

公开(公告)号：US10649551B1

公开(公告)日：2020-05-12

申请号：US16233114

申请日：2018-12-27

Applicant: PixArt Imaging Inc.

Inventor： Yen-Chang Wang ,  Tsung-Fa Wang

IPC: G06F3/0354 ,  G06F21/32 ,  G06F3/03

Abstract: A pen mouse with an inclining compensation function includes an optical sensor, a sensor array, a pen tip and a processor. The optical sensor is adapted to sense a relative movement of an object. The sensor array has a plurality of sensing units. The pen tip is connected to the sensor array and adapted to activate at least one of the plurality of sensing units when being pressed by the object. The processor is electrically connected with the sensor array. The processor is adapted to compute a trace of the pen mouse via analysis of the relative movement and further to compensate the trace via analysis of the activated sensing unit.