公开(公告)号：US11829180B2

公开(公告)日：2023-11-28

申请号：US17411022

申请日：2021-08-24

Applicant: PixArt Imaging Inc.

Inventor： Wei-Chung Wang ,  Hsin-Chia Chen ,  Hui-Hsuan Chen ,  Chao-Chien Huang ,  Chu-Hung Nien

IPC: G05G9/047 ,  G06F3/038

CPC classification number: G05G9/047 ,  G06F3/038 ,  G05G2009/04759

Abstract: A pressure detection device of detecting a forced state of a deformable object includes a body, an image sensor and a processor. The body is a deformable hollow structure. The body has an inner surface and an outer surface, and an identifiable vision feature is disposed on the inner surface. The image sensor is disposed inside the body and faces the inner surface of the body, and is adapted to capture a frame containing the identifiable vision feature on the inner surface. The processor is electrically connected with the image sensor, and adapted to analyze position variation of the identifiable vision feature within the captured frame for identifying a motion type of a gesture applied to the outer surface of the body.

公开(公告)号：US11206057B2

公开(公告)日：2021-12-21

申请号：US16737047

申请日：2020-01-08

Applicant: PixArt Imaging Inc.

Inventor： Yung-Wei Chen ,  Yen-Chang Wang ,  Yen-Min Chang ,  Hsin-Chia Chen

IPC: H04B5/00 ,  G06F3/041 ,  G06F3/044

Abstract: There is provided a capacitive communication system including an object and a capacitive touch panel. The object includes a plurality of induction conductors configured to have different potential distributions at different time intervals by modulating respective potentials thereof. The capacitive touch panel includes a plurality of sensing electrodes configured to form a coupling electric field with the induction conductors to detect the different potential distributions at the different time intervals. When the different potential distributions match a predetermined agreement between the object and the capacitive touch panel, a near field communication is formed between the object and the capacitive touch panel.

公开(公告)号：US10905340B2

公开(公告)日：2021-02-02

申请号：US16700168

申请日：2019-12-02

Applicant: PixArt Imaging Inc.

Inventor： Ren-Hau Gu ,  Hsin-Chia Chen ,  Raman Sahgal ,  Jung-Tai Lin

IPC: A61B5/024 ,  A61B5/11 ,  G01C11/02 ,  G06F3/0354 ,  G06F3/038 ,  G06F3/03 ,  G06F1/3234 ,  G06F3/01

Abstract: A physiological detection device including a light source, an image sensor and a processor is provided. The light source illuminates a skin surface using a burst mode. The image sensor receives ejected light from skin tissues under the skin surface at a sampling frequency to successively generate image frames. The processor controls the light source and the image sensor, and calculates a physiological characteristic according to the image frames captured when the light source is illuminating light. The physiological detection device reduces the total power consumption by adopting the burst mode.

公开(公告)号：US10548490B2

公开(公告)日：2020-02-04

申请号：US15231690

申请日：2016-08-08

Applicant: PIXART IMAGING INC.

Inventor： Ren-Hau Gu ,  Hsin-Chia Chen ,  Raman Sahgal ,  Jung-Tai Lin

IPC: A61B5/024 ,  A61B5/11 ,  G01C11/02 ,  G06F3/0354

Abstract: A physiological detection device including a light source, an image sensor and a processor is provided. The light source illuminates a skin surface using a burst mode. The image sensor receives ejected light from skin tissues under the skin surface at a sampling frequency to successively generate image frames. The processor controls the light source and the image sensor, and calculates a physiological characteristic according to the image frames captured when the light source is illuminating light. The physiological detection device reduces the total power consumption by adopting the burst mode.

公开(公告)号：US10303264B2

公开(公告)日：2019-05-28

申请号：US15478980

申请日：2017-04-04

Applicant: PIXART IMAGING INC.

Inventor： Ching-Lin Chung ,  Hsin-Chia Chen

IPC: G06F3/03 ,  G06F3/0354 ,  G06F3/038 ,  G06F1/16

Abstract: An optical encoder has a displacement generating unit, a light-emitting unit and an optical navigation integrated circuit. The displacement generating unit has an axle body movable along a central axial line thereof. The axle body has a free end with a diameter larger than a part of the axle body and a planar working surface formed on the free end. The light-emitting unit is configured for operatively providing a light beam to irradiate the working surface of the displacement generating unit. The light beam has a divergence angle within a range to reduce scattering. The optical navigation integrated circuit receives the reflected light beam reflected by the working surface, and calculates a relative displacement between the optical navigation integrated circuit and the working surface.

公开(公告)号：US10025395B2

公开(公告)日：2018-07-17

申请号：US15205270

申请日：2016-07-08

Applicant: PIXART IMAGING INC.

Inventor： Hsin-Chia Chen ,  Yen-Min Chang

IPC: G06F3/0346 ,  G06F3/03

CPC classification number: G06F3/0346 ,  G06F3/0317

Abstract: An image-capturing device configured for a 3D space optical pointing apparatus, comprising: a plurality of adjacently arranged image-sensing units configured to sense an image of a 3D space and generate successive plane frame images, each comprising a plurality of sensing signals respectively, being adapted to evaluate a velocity and a position relative to a surface of the optical pointing apparatus. The velocity and position information can be applied to adjust the resolution setting of the image-capturing device.

公开(公告)号：US09517019B2

公开(公告)日：2016-12-13

申请号：US15144535

申请日：2016-05-02

Applicant: PIXART IMAGING INC.

Inventor： Robert Cheng-Yuan Wang ,  Hsin-Chia Chen

IPC: A61B5/026 ,  H04N5/235 ,  A61B5/00

CPC classification number: A61B5/0261 ,  A61B5/0013 ,  A61B5/024 ,  A61B5/0816 ,  A61B5/14551 ,  A61B5/6803 ,  A61B5/681 ,  A61B5/6824 ,  A61B5/6826 ,  A61B5/6829 ,  A61B5/6843 ,  A61B2576/00 ,  H04N5/2256 ,  H04N5/2353 ,  H04N5/2354 ,  H04N5/332 ,  Y02D10/155

Abstract: There is provided a physiological measurement device including a light source, an image sensor and a processor. The light source illuminates a skin surface with a first brightness value and a second brightness value. The image sensor receives scattered light from tissues below the skin surface, and outputs a first image frame corresponding to the first brightness value and a second image frame corresponding to the second brightness value. The processor calculates an intensity comparison index between the first image frame and the second image frame, calculates perfusion data according to the first image frame and/or the second image frame, and identifies a contact status according to the intensity comparison index.

Abstract translation: 提供了包括光源，图像传感器和处理器的生理测量装置。 光源以第一亮度值和第二亮度值照亮皮肤表面。 图像传感器从皮肤表面下方的组织接收散射光，并输出与第一亮度值对应的第一图像帧和对应于第二亮度值的第二图像帧。 处理器计算第一图像帧和第二图像帧之间的强度比较指数，根据第一图像帧和/或第二图像帧计算灌注数据，并根据强度比较指数识别接触状态。

公开(公告)号：US09435646B2

公开(公告)日：2016-09-06

申请号：US13758304

申请日：2013-02-04

Applicant: PixArt Imaging Inc.

Inventor： Yu-Hao Huang ,  Hsin-Chia Chen ,  Ming-Tsan Kao ,  Sen-Huang Huang

IPC: G01C11/02 ,  G06F1/32 ,  G06F3/038 ,  G06F3/0354 ,  G06F3/03

CPC classification number: G01C11/02 ,  G06F1/3259 ,  G06F3/0317 ,  G06F3/03543 ,  G06F3/03547 ,  G06F3/0383 ,  G06F2203/0338 ,  Y02D10/155

Abstract: There is provided a displacement detection device including an image sensor, a light source, a light control unit and a processing unit. The image sensor captures image frames at a sampling frequency. The light source provides, in a speed mode, light for the image sensor in capturing the image frames. The light control unit controls the light source with the speed mode to turn on at a lighting frequency or to turn off serially. The processing unit calculates a displacement according to the image frames captured when the light source turns on to be served as an estimated displacement for an interval during which the light source turns off. There is further provided an operating method of a displacement detection device.

Abstract translation: 提供了包括图像传感器，光源，光控制单元和处理单元的位移检测装置。 图像传感器以采样频率捕获图像帧。 光源在速度模式下提供用于图像传感器捕获图像帧的光。 光控制单元以速度模式控制光源，以点亮频率开启或连续关闭。 处理单元根据在光源打开时拍摄的图像帧来计算作为光源关闭的间隔的估计位移的位移。 还提供了一种位移检测装置的操作方法。

公开(公告)号：US20160238386A1

公开(公告)日：2016-08-18

申请号：US15136991

申请日：2016-04-25

Applicant: PixArt Imaging Inc.

Inventor： Shu-Sian Yang ,  Hsin-Chia Chen ,  Ren-Hau Gu ,  Sen-Huang Huang

IPC: G01C3/08 ,  H04N5/225 ,  H04N5/33 ,  H04N7/18

CPC classification number: G01C3/08 ,  G01B11/026 ,  G01B11/2441 ,  H04N5/2256 ,  H04N5/33 ,  H04N7/183

Abstract: A distance measuring system includes a light source module, an image capturing device and a processing module. The light source module transmits a light beam having a speckle pattern to a first flat surface and a second flat surface, and an object. The image capturing device captures the image of the speckle pattern shown on the first and second flat surfaces, and captures the image of the speckle pattern shown on a surface of the object to produce first reference image information, second reference image information, and object image information. The processing module calculates a displacement vector of the speckle pattern according to the first and second reference image information. The processing module calculates the relative distance between the object and the first flat surface or the second flat surface according to the position of the speckle pattern on the object image information and the displacement vector.

Abstract translation: 测距系统包括光源模块，摄像装置和处理模块。 光源模块将具有斑纹图案的光束传送到第一平面和第二平面，以及物体。 图像拍摄装置捕获第一和第二平面上所示的斑纹图案的图像，并且捕获在对象的表面上示出的散斑图案的图像，以产生第一参考图像信息，第二参考图像信息和对象图像 信息。 处理模块根据第一和第二参考图像信息计算散斑图案的位移矢量。 处理模块根据对象图像信息和位移矢量上的散斑图案的位置来计算物体与第一平坦表面或第二平坦表面之间的相对距离。

公开(公告)号：US10210412B2

公开(公告)日：2019-02-19

申请号：US15347309

申请日：2016-11-09

Applicant: PIXART IMAGING INC.

Inventor： Boon-How Kok ,  Keen-Hun Leong ,  Ching-Geak Chan ,  Chiang-Hee Lim ,  Chu-Leik Ho ,  Hsin-Chia Chen ,  Yen-Min Chang

IPC: G01D5/34 ,  G06K9/20 ,  G06K9/46 ,  G06K9/00 ,  G06F3/03 ,  H04N19/00 ,  H04N5/225

Abstract: The present disclosure is related to an optical encoder which is configured to provide precise coding reference data by feature recognition technology. To apply the present disclosure, it is not necessary to provide particular dense patterns on a working surface. The precise coding reference data can be generated by detecting surface features of the working surface.